diff --git a/node_modules/resolve/.editorconfig b/node_modules/resolve/.editorconfig
new file mode 100644
index 0000000..b96fcfb
--- /dev/null
+++ b/node_modules/resolve/.editorconfig
@@ -0,0 +1,34 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 200
+
+[*.js]
+block_comment_start = /*
+block_comment = *
+block_comment_end = */
+
+[*.yml]
+indent_size = 1
+
+[package.json]
+indent_style = tab
+
+[CHANGELOG.md]
+indent_style = space
+indent_size = 2
+
+[{*.json,Makefile}]
+max_line_length = off
+
+[test/{dotdot,resolver,module_dir,multirepo,node_path,pathfilter,precedence}/**/*]
+indent_style = off
+indent_size = off
+max_line_length = off
+insert_final_newline = off
diff --git a/node_modules/resolve/.eslintignore b/node_modules/resolve/.eslintignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/node_modules/resolve/.eslintignore
@@ -0,0 +1 @@
+node_modules
diff --git a/node_modules/resolve/.eslintrc b/node_modules/resolve/.eslintrc
new file mode 100644
index 0000000..a22863c
--- /dev/null
+++ b/node_modules/resolve/.eslintrc
@@ -0,0 +1,39 @@
+{
+    "extends": "@ljharb",
+    "root": true,
+    "rules": {
+        "array-bracket-newline": 0,
+        "array-element-newline": 0,
+        "indent": [2, 4],
+        "strict": 0,
+        "complexity": 0,
+        "consistent-return": 0,
+        "curly": 0,
+        "dot-notation": [2, { "allowKeywords": true }],
+        "func-name-matching": 0,
+        "func-style": 0,
+        "global-require": 0,
+        "id-length": [2, { "min": 1, "max": 30 }],
+        "max-lines-per-function": 0,
+        "max-nested-callbacks": 0,
+        "max-params": 0,
+        "max-statements-per-line": [2, { "max": 2 }],
+        "max-statements": 0,
+        "no-magic-numbers": 0,
+        "no-console": 0,
+        "no-shadow": 0,
+        "no-unused-vars": [2, { "vars": "all", "args": "none" }],
+        "no-use-before-define": 0,
+        "object-curly-newline": 0,
+        "operator-linebreak": [2, "before"],
+        "sort-keys": 0,
+    },
+    "overrides": [
+        {
+            "files": "test/resolver/nested_symlinks/mylib/*.js",
+            "rules": {
+                "no-throw-literal": 0,
+            },
+        },
+    ],
+}
diff --git a/node_modules/resolve/.github/workflows/node-4+.yml b/node_modules/resolve/.github/workflows/node-4+.yml
new file mode 100644
index 0000000..ba174e1
--- /dev/null
+++ b/node_modules/resolve/.github/workflows/node-4+.yml
@@ -0,0 +1,54 @@
+name: 'Tests: node.js'
+
+on: [pull_request, push]
+
+jobs:
+  matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      latest: ${{ steps.set-matrix.outputs.requireds }}
+      minors: ${{ steps.set-matrix.outputs.optionals }}
+    steps:
+      - uses: ljharb/actions/node/matrix@main
+        id: set-matrix
+        with:
+          preset: '>=4'
+
+  latest:
+    needs: [matrix]
+    name: 'latest minors'
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix: ${{ fromJson(needs.matrix.outputs.latest) }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        name: 'npm install && npm run tests-only'
+        with:
+          node-version: ${{ matrix.node-version }}
+          command: 'tests-only'
+  minors:
+    needs: [matrix, latest]
+    name: 'non-latest minors'
+    continue-on-error: true
+    if: ${{ !github.head_ref || !startsWith(github.head_ref, 'renovate') }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix: ${{ fromJson(needs.matrix.outputs.minors) }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        with:
+          node-version: ${{ matrix.node-version }}
+          command: 'tests-only'
+
+  node:
+    name: 'node 4+'
+    needs: [latest, minors]
+    runs-on: ubuntu-latest
+    steps:
+      - run: 'echo tests completed'
diff --git a/node_modules/resolve/.github/workflows/node-iojs.yml b/node_modules/resolve/.github/workflows/node-iojs.yml
new file mode 100644
index 0000000..a813bfd
--- /dev/null
+++ b/node_modules/resolve/.github/workflows/node-iojs.yml
@@ -0,0 +1,55 @@
+name: 'Tests: node.js (io.js)'
+
+on: [pull_request, push]
+
+jobs:
+  matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      latest: ${{ steps.set-matrix.outputs.requireds }}
+      minors: ${{ steps.set-matrix.outputs.optionals }}
+    steps:
+      - uses: ljharb/actions/node/matrix@main
+        id: set-matrix
+        with:
+          preset: 'iojs'
+
+  latest:
+    needs: [matrix]
+    name: 'latest minors'
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix: ${{ fromJson(needs.matrix.outputs.latest) }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        name: 'npm install && npm run tests-only'
+        with:
+          node-version: ${{ matrix.node-version }}
+          command: 'tests-only'
+  minors:
+    needs: [matrix, latest]
+    name: 'non-latest minors'
+    continue-on-error: true
+    if: ${{ !github.head_ref || !startsWith(github.head_ref, 'renovate') }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix: ${{ fromJson(needs.matrix.outputs.minors) }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        name: 'npm install && npm run tests-only'
+        with:
+          node-version: ${{ matrix.node-version }}
+          command: 'tests-only'
+
+  node:
+    name: 'io.js'
+    needs: [latest, minors]
+    runs-on: ubuntu-latest
+    steps:
+      - run: 'echo tests completed'
diff --git a/node_modules/resolve/.github/workflows/node-pretest.yml b/node_modules/resolve/.github/workflows/node-pretest.yml
new file mode 100644
index 0000000..9ed7661
--- /dev/null
+++ b/node_modules/resolve/.github/workflows/node-pretest.yml
@@ -0,0 +1,27 @@
+name: 'Tests: pretest/posttest'
+
+on: [pull_request, push]
+
+jobs:
+  pretest:
+    runs-on: ubuntu-latest
+
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        name: 'npm install && npm run pretest'
+        with:
+          node-version: 'lts/*'
+          command: 'pretest'
+
+  posttest:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        name: 'npm install && npm run posttest'
+        with:
+          node-version: 'lts/*'
+          command: 'posttest'
diff --git a/node_modules/resolve/.github/workflows/node-zero.yml b/node_modules/resolve/.github/workflows/node-zero.yml
new file mode 100644
index 0000000..4b4f7f0
--- /dev/null
+++ b/node_modules/resolve/.github/workflows/node-zero.yml
@@ -0,0 +1,55 @@
+name: 'Tests: node.js (0.x)'
+
+on: [pull_request, push]
+
+jobs:
+  matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      stable: ${{ steps.set-matrix.outputs.requireds }}
+      unstable: ${{ steps.set-matrix.outputs.optionals }}
+    steps:
+      - uses: ljharb/actions/node/matrix@main
+        id: set-matrix
+        with:
+          preset: '0.x'
+
+  stable:
+    needs: [matrix]
+    name: 'stable minors'
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix: ${{ fromJson(needs.matrix.outputs.stable) }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        with:
+          node-version: ${{ matrix.node-version }}
+          command: 'tests-only'
+          cache-node-modules-key: node_modules-${{ github.workflow }}-${{ github.action }}-${{ github.run_id }}
+  unstable:
+    needs: [matrix, stable]
+    name: 'unstable minors'
+    continue-on-error: true
+    if: ${{ !github.head_ref || !startsWith(github.head_ref, 'renovate') }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix: ${{ fromJson(needs.matrix.outputs.unstable) }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ljharb/actions/node/run@main
+        with:
+          node-version: ${{ matrix.node-version }}
+          command: 'tests-only'
+          cache-node-modules-key: node_modules-${{ github.workflow }}-${{ github.action }}-${{ github.run_id }}
+
+  node:
+    name: 'node 0.x'
+    needs: [stable, unstable]
+    runs-on: ubuntu-latest
+    steps:
+      - run: 'echo tests completed'
diff --git a/node_modules/resolve/.github/workflows/rebase.yml b/node_modules/resolve/.github/workflows/rebase.yml
new file mode 100644
index 0000000..027aed0
--- /dev/null
+++ b/node_modules/resolve/.github/workflows/rebase.yml
@@ -0,0 +1,15 @@
+name: Automatic Rebase
+
+on: [pull_request_target]
+
+jobs:
+  _:
+    name: "Automatic Rebase"
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ljharb/rebase@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/node_modules/resolve/.github/workflows/require-allow-edits.yml b/node_modules/resolve/.github/workflows/require-allow-edits.yml
new file mode 100644
index 0000000..aac42d3
--- /dev/null
+++ b/node_modules/resolve/.github/workflows/require-allow-edits.yml
@@ -0,0 +1,14 @@
+name: Require “Allow Edits”
+
+on: [pull_request_target]
+
+jobs:
+  _:
+    name: "Require “Allow Edits”"
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: ljharb/require-allow-edits@main
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/node_modules/resolve/LICENSE b/node_modules/resolve/LICENSE
new file mode 100644
index 0000000..ff4fce2
--- /dev/null
+++ b/node_modules/resolve/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2012 James Halliday
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/resolve/appveyor.yml b/node_modules/resolve/appveyor.yml
new file mode 100644
index 0000000..747fbdb
--- /dev/null
+++ b/node_modules/resolve/appveyor.yml
@@ -0,0 +1,74 @@
+version: 1.0.{build}
+skip_branch_with_pr: true
+build: off
+
+environment:
+  matrix:
+    #- nodejs_version: "15"
+    - nodejs_version: "14"
+    - nodejs_version: "13"
+    - nodejs_version: "12"
+    - nodejs_version: "11"
+    - nodejs_version: "10"
+    - nodejs_version: "9"
+    - nodejs_version: "8"
+    - nodejs_version: "7"
+    - nodejs_version: "6"
+    - nodejs_version: "5"
+    - nodejs_version: "4"
+    - nodejs_version: "3"
+    - nodejs_version: "2"
+    - nodejs_version: "1"
+    - nodejs_version: "0.12"
+    - nodejs_version: "0.10"
+    - nodejs_version: "0.8"
+    - nodejs_version: "0.6"
+matrix:
+  # fast_finish: true
+  allow_failures:
+    - nodejs_version: "5" # due to windows npm bug, registry-side
+    - nodejs_version: "0.8"
+      # platform: x86 # x64 has started failing on the registry side, around early November 2020
+    - nodejs_version: "0.6"
+
+platform:
+  - x86
+  - x64
+
+# Install scripts. (runs after repo cloning)
+install:
+  # Fix symlinks in working copy (see https://github.com/appveyor/ci/issues/650#issuecomment-186592582) / https://github.com/charleskorn/batect/commit/d08986802ec43086902958c4ee7e57ff3e71dbef
+  - git config core.symlinks true
+  - git reset --hard
+  # Get the latest stable version of Node.js or io.js
+  - ps: if ($env:nodejs_version -ne '0.6') { Install-Product node $env:nodejs_version $env:platform }
+  - ps: Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) $env:platform
+  - IF %nodejs_version% EQU 0.6 npm config set strict-ssl false && npm -g install npm@1.3
+  - IF %nodejs_version% EQU 0.8 npm config set strict-ssl false && npm -g install npm@1.4.28 && npm install -g npm@4.5
+  - IF %nodejs_version% EQU 1 npm -g install npm@2.9
+  - IF %nodejs_version% EQU 2 npm -g install npm@4
+  - IF %nodejs_version% EQU 3 npm -g install npm@4
+  - IF %nodejs_version% EQU 4 npm -g install npm@5.3
+  - IF %nodejs_version% EQU 5 npm -g install npm@5.3
+  - IF %nodejs_version% EQU 6 npm -g install npm@6.9
+  - IF %nodejs_version% EQU 7 npm -g install npm@6
+  - IF %nodejs_version% EQU 8 npm -g install npm@6
+  - IF %nodejs_version% EQU 9 npm -g install npm@6.9
+  - IF %nodejs_version% EQU 10 npm -g install npm@7
+  - IF %nodejs_version% EQU 11 npm -g install npm@7
+  - IF %nodejs_version% EQU 12 npm -g install npm@7
+  - IF %nodejs_version% EQU 13 npm -g install npm@7
+  - IF %nodejs_version% EQU 14 npm -g install npm@7
+  - IF %nodejs_version% EQU 15 npm -g install npm@7
+  - set PATH=%APPDATA%\npm;%PATH%
+  #- IF %nodejs_version% NEQ 0.6 AND %nodejs_version% NEQ 0.8 npm -g install npm
+  # install modules
+  - npm install
+
+# Post-install test scripts.
+test_script:
+ # Output useful info for debugging.
+ - node --version
+ - npm --version
+ # run tests
+ - npm run tests-only
diff --git a/node_modules/resolve/example/async.js b/node_modules/resolve/example/async.js
new file mode 100644
index 0000000..20e65dc
--- /dev/null
+++ b/node_modules/resolve/example/async.js
@@ -0,0 +1,5 @@
+var resolve = require('../');
+resolve('tap', { basedir: __dirname }, function (err, res) {
+    if (err) console.error(err);
+    else console.log(res);
+});
diff --git a/node_modules/resolve/example/sync.js b/node_modules/resolve/example/sync.js
new file mode 100644
index 0000000..54b2cc1
--- /dev/null
+++ b/node_modules/resolve/example/sync.js
@@ -0,0 +1,3 @@
+var resolve = require('../');
+var res = resolve.sync('tap', { basedir: __dirname });
+console.log(res);
diff --git a/node_modules/resolve/index.js b/node_modules/resolve/index.js
new file mode 100644
index 0000000..125d814
--- /dev/null
+++ b/node_modules/resolve/index.js
@@ -0,0 +1,6 @@
+var async = require('./lib/async');
+async.core = require('./lib/core');
+async.isCore = require('./lib/is-core');
+async.sync = require('./lib/sync');
+
+module.exports = async;
diff --git a/node_modules/resolve/lib/async.js b/node_modules/resolve/lib/async.js
new file mode 100644
index 0000000..2928507
--- /dev/null
+++ b/node_modules/resolve/lib/async.js
@@ -0,0 +1,299 @@
+var fs = require('fs');
+var path = require('path');
+var caller = require('./caller');
+var nodeModulesPaths = require('./node-modules-paths');
+var normalizeOptions = require('./normalize-options');
+var isCore = require('is-core-module');
+
+var realpathFS = fs.realpath && typeof fs.realpath.native === 'function' ? fs.realpath.native : fs.realpath;
+
+var defaultIsFile = function isFile(file, cb) {
+    fs.stat(file, function (err, stat) {
+        if (!err) {
+            return cb(null, stat.isFile() || stat.isFIFO());
+        }
+        if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+        return cb(err);
+    });
+};
+
+var defaultIsDir = function isDirectory(dir, cb) {
+    fs.stat(dir, function (err, stat) {
+        if (!err) {
+            return cb(null, stat.isDirectory());
+        }
+        if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+        return cb(err);
+    });
+};
+
+var defaultRealpath = function realpath(x, cb) {
+    realpathFS(x, function (realpathErr, realPath) {
+        if (realpathErr && realpathErr.code !== 'ENOENT') cb(realpathErr);
+        else cb(null, realpathErr ? x : realPath);
+    });
+};
+
+var maybeRealpath = function maybeRealpath(realpath, x, opts, cb) {
+    if (opts && opts.preserveSymlinks === false) {
+        realpath(x, cb);
+    } else {
+        cb(null, x);
+    }
+};
+
+var getPackageCandidates = function getPackageCandidates(x, start, opts) {
+    var dirs = nodeModulesPaths(start, opts, x);
+    for (var i = 0; i < dirs.length; i++) {
+        dirs[i] = path.join(dirs[i], x);
+    }
+    return dirs;
+};
+
+module.exports = function resolve(x, options, callback) {
+    var cb = callback;
+    var opts = options;
+    if (typeof options === 'function') {
+        cb = opts;
+        opts = {};
+    }
+    if (typeof x !== 'string') {
+        var err = new TypeError('Path must be a string.');
+        return process.nextTick(function () {
+            cb(err);
+        });
+    }
+
+    opts = normalizeOptions(x, opts);
+
+    var isFile = opts.isFile || defaultIsFile;
+    var isDirectory = opts.isDirectory || defaultIsDir;
+    var readFile = opts.readFile || fs.readFile;
+    var realpath = opts.realpath || defaultRealpath;
+    var packageIterator = opts.packageIterator;
+
+    var extensions = opts.extensions || ['.js'];
+    var includeCoreModules = opts.includeCoreModules !== false;
+    var basedir = opts.basedir || path.dirname(caller());
+    var parent = opts.filename || basedir;
+
+    opts.paths = opts.paths || [];
+
+    // ensure that `basedir` is an absolute path at this point, resolving against the process' current working directory
+    var absoluteStart = path.resolve(basedir);
+
+    maybeRealpath(
+        realpath,
+        absoluteStart,
+        opts,
+        function (err, realStart) {
+            if (err) cb(err);
+            else init(realStart);
+        }
+    );
+
+    var res;
+    function init(basedir) {
+        if ((/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/).test(x)) {
+            res = path.resolve(basedir, x);
+            if (x === '.' || x === '..' || x.slice(-1) === '/') res += '/';
+            if ((/\/$/).test(x) && res === basedir) {
+                loadAsDirectory(res, opts.package, onfile);
+            } else loadAsFile(res, opts.package, onfile);
+        } else if (includeCoreModules && isCore(x)) {
+            return cb(null, x);
+        } else loadNodeModules(x, basedir, function (err, n, pkg) {
+            if (err) cb(err);
+            else if (n) {
+                return maybeRealpath(realpath, n, opts, function (err, realN) {
+                    if (err) {
+                        cb(err);
+                    } else {
+                        cb(null, realN, pkg);
+                    }
+                });
+            } else {
+                var moduleError = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+                moduleError.code = 'MODULE_NOT_FOUND';
+                cb(moduleError);
+            }
+        });
+    }
+
+    function onfile(err, m, pkg) {
+        if (err) cb(err);
+        else if (m) cb(null, m, pkg);
+        else loadAsDirectory(res, function (err, d, pkg) {
+            if (err) cb(err);
+            else if (d) {
+                maybeRealpath(realpath, d, opts, function (err, realD) {
+                    if (err) {
+                        cb(err);
+                    } else {
+                        cb(null, realD, pkg);
+                    }
+                });
+            } else {
+                var moduleError = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+                moduleError.code = 'MODULE_NOT_FOUND';
+                cb(moduleError);
+            }
+        });
+    }
+
+    function loadAsFile(x, thePackage, callback) {
+        var loadAsFilePackage = thePackage;
+        var cb = callback;
+        if (typeof loadAsFilePackage === 'function') {
+            cb = loadAsFilePackage;
+            loadAsFilePackage = undefined;
+        }
+
+        var exts = [''].concat(extensions);
+        load(exts, x, loadAsFilePackage);
+
+        function load(exts, x, loadPackage) {
+            if (exts.length === 0) return cb(null, undefined, loadPackage);
+            var file = x + exts[0];
+
+            var pkg = loadPackage;
+            if (pkg) onpkg(null, pkg);
+            else loadpkg(path.dirname(file), onpkg);
+
+            function onpkg(err, pkg_, dir) {
+                pkg = pkg_;
+                if (err) return cb(err);
+                if (dir && pkg && opts.pathFilter) {
+                    var rfile = path.relative(dir, file);
+                    var rel = rfile.slice(0, rfile.length - exts[0].length);
+                    var r = opts.pathFilter(pkg, x, rel);
+                    if (r) return load(
+                        [''].concat(extensions.slice()),
+                        path.resolve(dir, r),
+                        pkg
+                    );
+                }
+                isFile(file, onex);
+            }
+            function onex(err, ex) {
+                if (err) return cb(err);
+                if (ex) return cb(null, file, pkg);
+                load(exts.slice(1), x, pkg);
+            }
+        }
+    }
+
+    function loadpkg(dir, cb) {
+        if (dir === '' || dir === '/') return cb(null);
+        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
+            return cb(null);
+        }
+        if ((/[/\\]node_modules[/\\]*$/).test(dir)) return cb(null);
+
+        maybeRealpath(realpath, dir, opts, function (unwrapErr, pkgdir) {
+            if (unwrapErr) return loadpkg(path.dirname(dir), cb);
+            var pkgfile = path.join(pkgdir, 'package.json');
+            isFile(pkgfile, function (err, ex) {
+                // on err, ex is false
+                if (!ex) return loadpkg(path.dirname(dir), cb);
+
+                readFile(pkgfile, function (err, body) {
+                    if (err) cb(err);
+                    try { var pkg = JSON.parse(body); } catch (jsonErr) {}
+
+                    if (pkg && opts.packageFilter) {
+                        pkg = opts.packageFilter(pkg, pkgfile);
+                    }
+                    cb(null, pkg, dir);
+                });
+            });
+        });
+    }
+
+    function loadAsDirectory(x, loadAsDirectoryPackage, callback) {
+        var cb = callback;
+        var fpkg = loadAsDirectoryPackage;
+        if (typeof fpkg === 'function') {
+            cb = fpkg;
+            fpkg = opts.package;
+        }
+
+        maybeRealpath(realpath, x, opts, function (unwrapErr, pkgdir) {
+            if (unwrapErr) return cb(unwrapErr);
+            var pkgfile = path.join(pkgdir, 'package.json');
+            isFile(pkgfile, function (err, ex) {
+                if (err) return cb(err);
+                if (!ex) return loadAsFile(path.join(x, 'index'), fpkg, cb);
+
+                readFile(pkgfile, function (err, body) {
+                    if (err) return cb(err);
+                    try {
+                        var pkg = JSON.parse(body);
+                    } catch (jsonErr) {}
+
+                    if (pkg && opts.packageFilter) {
+                        pkg = opts.packageFilter(pkg, pkgfile);
+                    }
+
+                    if (pkg && pkg.main) {
+                        if (typeof pkg.main !== 'string') {
+                            var mainError = new TypeError('package “' + pkg.name + '” `main` must be a string');
+                            mainError.code = 'INVALID_PACKAGE_MAIN';
+                            return cb(mainError);
+                        }
+                        if (pkg.main === '.' || pkg.main === './') {
+                            pkg.main = 'index';
+                        }
+                        loadAsFile(path.resolve(x, pkg.main), pkg, function (err, m, pkg) {
+                            if (err) return cb(err);
+                            if (m) return cb(null, m, pkg);
+                            if (!pkg) return loadAsFile(path.join(x, 'index'), pkg, cb);
+
+                            var dir = path.resolve(x, pkg.main);
+                            loadAsDirectory(dir, pkg, function (err, n, pkg) {
+                                if (err) return cb(err);
+                                if (n) return cb(null, n, pkg);
+                                loadAsFile(path.join(x, 'index'), pkg, cb);
+                            });
+                        });
+                        return;
+                    }
+
+                    loadAsFile(path.join(x, '/index'), pkg, cb);
+                });
+            });
+        });
+    }
+
+    function processDirs(cb, dirs) {
+        if (dirs.length === 0) return cb(null, undefined);
+        var dir = dirs[0];
+
+        isDirectory(path.dirname(dir), isdir);
+
+        function isdir(err, isdir) {
+            if (err) return cb(err);
+            if (!isdir) return processDirs(cb, dirs.slice(1));
+            loadAsFile(dir, opts.package, onfile);
+        }
+
+        function onfile(err, m, pkg) {
+            if (err) return cb(err);
+            if (m) return cb(null, m, pkg);
+            loadAsDirectory(dir, opts.package, ondir);
+        }
+
+        function ondir(err, n, pkg) {
+            if (err) return cb(err);
+            if (n) return cb(null, n, pkg);
+            processDirs(cb, dirs.slice(1));
+        }
+    }
+    function loadNodeModules(x, start, cb) {
+        var thunk = function () { return getPackageCandidates(x, start, opts); };
+        processDirs(
+            cb,
+            packageIterator ? packageIterator(x, start, thunk, opts) : thunk()
+        );
+    }
+};
diff --git a/node_modules/resolve/lib/caller.js b/node_modules/resolve/lib/caller.js
new file mode 100644
index 0000000..b14a280
--- /dev/null
+++ b/node_modules/resolve/lib/caller.js
@@ -0,0 +1,8 @@
+module.exports = function () {
+    // see https://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
+    var origPrepareStackTrace = Error.prepareStackTrace;
+    Error.prepareStackTrace = function (_, stack) { return stack; };
+    var stack = (new Error()).stack;
+    Error.prepareStackTrace = origPrepareStackTrace;
+    return stack[2].getFileName();
+};
diff --git a/node_modules/resolve/lib/core.js b/node_modules/resolve/lib/core.js
new file mode 100644
index 0000000..c417d23
--- /dev/null
+++ b/node_modules/resolve/lib/core.js
@@ -0,0 +1,53 @@
+var current = (process.versions && process.versions.node && process.versions.node.split('.')) || [];
+
+function specifierIncluded(specifier) {
+    var parts = specifier.split(' ');
+    var op = parts.length > 1 ? parts[0] : '=';
+    var versionParts = (parts.length > 1 ? parts[1] : parts[0]).split('.');
+
+    for (var i = 0; i < 3; ++i) {
+        var cur = parseInt(current[i] || 0, 10);
+        var ver = parseInt(versionParts[i] || 0, 10);
+        if (cur === ver) {
+            continue; // eslint-disable-line no-restricted-syntax, no-continue
+        }
+        if (op === '<') {
+            return cur < ver;
+        } else if (op === '>=') {
+            return cur >= ver;
+        } else {
+            return false;
+        }
+    }
+    return op === '>=';
+}
+
+function matchesRange(range) {
+    var specifiers = range.split(/ ?&& ?/);
+    if (specifiers.length === 0) { return false; }
+    for (var i = 0; i < specifiers.length; ++i) {
+        if (!specifierIncluded(specifiers[i])) { return false; }
+    }
+    return true;
+}
+
+function versionIncluded(specifierValue) {
+    if (typeof specifierValue === 'boolean') { return specifierValue; }
+    if (specifierValue && typeof specifierValue === 'object') {
+        for (var i = 0; i < specifierValue.length; ++i) {
+            if (matchesRange(specifierValue[i])) { return true; }
+        }
+        return false;
+    }
+    return matchesRange(specifierValue);
+}
+
+var data = require('./core.json');
+
+var core = {};
+for (var mod in data) { // eslint-disable-line no-restricted-syntax
+    if (Object.prototype.hasOwnProperty.call(data, mod)) {
+        core[mod] = versionIncluded(data[mod]);
+    }
+}
+module.exports = core;
diff --git a/node_modules/resolve/lib/core.json b/node_modules/resolve/lib/core.json
new file mode 100644
index 0000000..226198f
--- /dev/null
+++ b/node_modules/resolve/lib/core.json
@@ -0,0 +1,80 @@
+{
+    "assert": true,
+    "assert/strict": ">= 15",
+    "async_hooks": ">= 8",
+    "buffer_ieee754": "< 0.9.7",
+    "buffer": true,
+    "child_process": true,
+    "cluster": true,
+    "console": true,
+    "constants": true,
+    "crypto": true,
+    "_debug_agent": ">= 1 && < 8",
+    "_debugger": "< 8",
+    "dgram": true,
+    "diagnostics_channel": ">= 15.1",
+    "dns": true,
+    "dns/promises": ">= 15",
+    "domain": ">= 0.7.12",
+    "events": true,
+    "freelist": "< 6",
+    "fs": true,
+    "fs/promises": [">= 10 && < 10.1", ">= 14"],
+    "_http_agent": ">= 0.11.1",
+    "_http_client": ">= 0.11.1",
+    "_http_common": ">= 0.11.1",
+    "_http_incoming": ">= 0.11.1",
+    "_http_outgoing": ">= 0.11.1",
+    "_http_server": ">= 0.11.1",
+    "http": true,
+    "http2": ">= 8.8",
+    "https": true,
+    "inspector": ">= 8.0.0",
+    "_linklist": "< 8",
+    "module": true,
+    "net": true,
+    "node-inspect/lib/_inspect": ">= 7.6.0 && < 12",
+    "node-inspect/lib/internal/inspect_client": ">= 7.6.0 && < 12",
+    "node-inspect/lib/internal/inspect_repl": ">= 7.6.0 && < 12",
+    "os": true,
+    "path": true,
+    "perf_hooks": ">= 8.5",
+    "process": ">= 1",
+    "punycode": true,
+    "querystring": true,
+    "readline": true,
+    "repl": true,
+    "smalloc": ">= 0.11.5 && < 3",
+    "_stream_duplex": ">= 0.9.4",
+    "_stream_transform": ">= 0.9.4",
+    "_stream_wrap": ">= 1.4.1",
+    "_stream_passthrough": ">= 0.9.4",
+    "_stream_readable": ">= 0.9.4",
+    "_stream_writable": ">= 0.9.4",
+    "stream": true,
+    "stream/promises": ">= 15",
+    "string_decoder": true,
+    "sys": [">= 0.6 && < 0.7", ">= 0.8"],
+    "timers": true,
+    "timers/promises": ">= 15",
+    "_tls_common": ">= 0.11.13",
+    "_tls_legacy": ">= 0.11.3 && < 10",
+    "_tls_wrap": ">= 0.11.3",
+    "tls": true,
+    "trace_events": ">= 10",
+    "tty": true,
+    "url": true,
+    "util": true,
+    "v8/tools/arguments": ">= 10 && < 12",
+    "v8/tools/codemap": [">= 4.4.0 && < 5", ">= 5.2.0 && < 12"],
+    "v8/tools/consarray": [">= 4.4.0 && < 5", ">= 5.2.0 && < 12"],
+    "v8/tools/csvparser": [">= 4.4.0 && < 5", ">= 5.2.0 && < 12"],
+    "v8/tools/logreader": [">= 4.4.0 && < 5", ">= 5.2.0 && < 12"],
+    "v8/tools/profile_view": [">= 4.4.0 && < 5", ">= 5.2.0 && < 12"],
+    "v8/tools/splaytree": [">= 4.4.0 && < 5", ">= 5.2.0 && < 12"],
+    "v8": ">= 1",
+    "vm": true,
+    "wasi": ">= 13.4 && < 13.5",
+    "worker_threads": ">= 11.7",
+    "zlib": true
+}
diff --git a/node_modules/resolve/lib/is-core.js b/node_modules/resolve/lib/is-core.js
new file mode 100644
index 0000000..537f5c7
--- /dev/null
+++ b/node_modules/resolve/lib/is-core.js
@@ -0,0 +1,5 @@
+var isCoreModule = require('is-core-module');
+
+module.exports = function isCore(x) {
+    return isCoreModule(x);
+};
diff --git a/node_modules/resolve/lib/node-modules-paths.js b/node_modules/resolve/lib/node-modules-paths.js
new file mode 100644
index 0000000..2b43813
--- /dev/null
+++ b/node_modules/resolve/lib/node-modules-paths.js
@@ -0,0 +1,42 @@
+var path = require('path');
+var parse = path.parse || require('path-parse');
+
+var getNodeModulesDirs = function getNodeModulesDirs(absoluteStart, modules) {
+    var prefix = '/';
+    if ((/^([A-Za-z]:)/).test(absoluteStart)) {
+        prefix = '';
+    } else if ((/^\\\\/).test(absoluteStart)) {
+        prefix = '\\\\';
+    }
+
+    var paths = [absoluteStart];
+    var parsed = parse(absoluteStart);
+    while (parsed.dir !== paths[paths.length - 1]) {
+        paths.push(parsed.dir);
+        parsed = parse(parsed.dir);
+    }
+
+    return paths.reduce(function (dirs, aPath) {
+        return dirs.concat(modules.map(function (moduleDir) {
+            return path.resolve(prefix, aPath, moduleDir);
+        }));
+    }, []);
+};
+
+module.exports = function nodeModulesPaths(start, opts, request) {
+    var modules = opts && opts.moduleDirectory
+        ? [].concat(opts.moduleDirectory)
+        : ['node_modules'];
+
+    if (opts && typeof opts.paths === 'function') {
+        return opts.paths(
+            request,
+            start,
+            function () { return getNodeModulesDirs(start, modules); },
+            opts
+        );
+    }
+
+    var dirs = getNodeModulesDirs(start, modules);
+    return opts && opts.paths ? dirs.concat(opts.paths) : dirs;
+};
diff --git a/node_modules/resolve/lib/normalize-options.js b/node_modules/resolve/lib/normalize-options.js
new file mode 100644
index 0000000..4b56904
--- /dev/null
+++ b/node_modules/resolve/lib/normalize-options.js
@@ -0,0 +1,10 @@
+module.exports = function (x, opts) {
+    /**
+     * This file is purposefully a passthrough. It's expected that third-party
+     * environments will override it at runtime in order to inject special logic
+     * into `resolve` (by manipulating the options). One such example is the PnP
+     * code path in Yarn.
+     */
+
+    return opts || {};
+};
diff --git a/node_modules/resolve/lib/sync.js b/node_modules/resolve/lib/sync.js
new file mode 100644
index 0000000..d5308c9
--- /dev/null
+++ b/node_modules/resolve/lib/sync.js
@@ -0,0 +1,192 @@
+var isCore = require('is-core-module');
+var fs = require('fs');
+var path = require('path');
+var caller = require('./caller');
+var nodeModulesPaths = require('./node-modules-paths');
+var normalizeOptions = require('./normalize-options');
+
+var realpathFS = fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
+
+var defaultIsFile = function isFile(file) {
+    try {
+        var stat = fs.statSync(file);
+    } catch (e) {
+        if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
+        throw e;
+    }
+    return stat.isFile() || stat.isFIFO();
+};
+
+var defaultIsDir = function isDirectory(dir) {
+    try {
+        var stat = fs.statSync(dir);
+    } catch (e) {
+        if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
+        throw e;
+    }
+    return stat.isDirectory();
+};
+
+var defaultRealpathSync = function realpathSync(x) {
+    try {
+        return realpathFS(x);
+    } catch (realpathErr) {
+        if (realpathErr.code !== 'ENOENT') {
+            throw realpathErr;
+        }
+    }
+    return x;
+};
+
+var maybeRealpathSync = function maybeRealpathSync(realpathSync, x, opts) {
+    if (opts && opts.preserveSymlinks === false) {
+        return realpathSync(x);
+    }
+    return x;
+};
+
+var getPackageCandidates = function getPackageCandidates(x, start, opts) {
+    var dirs = nodeModulesPaths(start, opts, x);
+    for (var i = 0; i < dirs.length; i++) {
+        dirs[i] = path.join(dirs[i], x);
+    }
+    return dirs;
+};
+
+module.exports = function resolveSync(x, options) {
+    if (typeof x !== 'string') {
+        throw new TypeError('Path must be a string.');
+    }
+    var opts = normalizeOptions(x, options);
+
+    var isFile = opts.isFile || defaultIsFile;
+    var readFileSync = opts.readFileSync || fs.readFileSync;
+    var isDirectory = opts.isDirectory || defaultIsDir;
+    var realpathSync = opts.realpathSync || defaultRealpathSync;
+    var packageIterator = opts.packageIterator;
+
+    var extensions = opts.extensions || ['.js'];
+    var includeCoreModules = opts.includeCoreModules !== false;
+    var basedir = opts.basedir || path.dirname(caller());
+    var parent = opts.filename || basedir;
+
+    opts.paths = opts.paths || [];
+
+    // ensure that `basedir` is an absolute path at this point, resolving against the process' current working directory
+    var absoluteStart = maybeRealpathSync(realpathSync, path.resolve(basedir), opts);
+
+    if ((/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/).test(x)) {
+        var res = path.resolve(absoluteStart, x);
+        if (x === '.' || x === '..' || x.slice(-1) === '/') res += '/';
+        var m = loadAsFileSync(res) || loadAsDirectorySync(res);
+        if (m) return maybeRealpathSync(realpathSync, m, opts);
+    } else if (includeCoreModules && isCore(x)) {
+        return x;
+    } else {
+        var n = loadNodeModulesSync(x, absoluteStart);
+        if (n) return maybeRealpathSync(realpathSync, n, opts);
+    }
+
+    var err = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+    err.code = 'MODULE_NOT_FOUND';
+    throw err;
+
+    function loadAsFileSync(x) {
+        var pkg = loadpkg(path.dirname(x));
+
+        if (pkg && pkg.dir && pkg.pkg && opts.pathFilter) {
+            var rfile = path.relative(pkg.dir, x);
+            var r = opts.pathFilter(pkg.pkg, x, rfile);
+            if (r) {
+                x = path.resolve(pkg.dir, r); // eslint-disable-line no-param-reassign
+            }
+        }
+
+        if (isFile(x)) {
+            return x;
+        }
+
+        for (var i = 0; i < extensions.length; i++) {
+            var file = x + extensions[i];
+            if (isFile(file)) {
+                return file;
+            }
+        }
+    }
+
+    function loadpkg(dir) {
+        if (dir === '' || dir === '/') return;
+        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
+            return;
+        }
+        if ((/[/\\]node_modules[/\\]*$/).test(dir)) return;
+
+        var pkgfile = path.join(maybeRealpathSync(realpathSync, dir, opts), 'package.json');
+
+        if (!isFile(pkgfile)) {
+            return loadpkg(path.dirname(dir));
+        }
+
+        var body = readFileSync(pkgfile);
+
+        try {
+            var pkg = JSON.parse(body);
+        } catch (jsonErr) {}
+
+        if (pkg && opts.packageFilter) {
+            // v2 will pass pkgfile
+            pkg = opts.packageFilter(pkg, /*pkgfile,*/ dir); // eslint-disable-line spaced-comment
+        }
+
+        return { pkg: pkg, dir: dir };
+    }
+
+    function loadAsDirectorySync(x) {
+        var pkgfile = path.join(maybeRealpathSync(realpathSync, x, opts), '/package.json');
+        if (isFile(pkgfile)) {
+            try {
+                var body = readFileSync(pkgfile, 'UTF8');
+                var pkg = JSON.parse(body);
+            } catch (e) {}
+
+            if (pkg && opts.packageFilter) {
+                // v2 will pass pkgfile
+                pkg = opts.packageFilter(pkg, /*pkgfile,*/ x); // eslint-disable-line spaced-comment
+            }
+
+            if (pkg && pkg.main) {
+                if (typeof pkg.main !== 'string') {
+                    var mainError = new TypeError('package “' + pkg.name + '” `main` must be a string');
+                    mainError.code = 'INVALID_PACKAGE_MAIN';
+                    throw mainError;
+                }
+                if (pkg.main === '.' || pkg.main === './') {
+                    pkg.main = 'index';
+                }
+                try {
+                    var m = loadAsFileSync(path.resolve(x, pkg.main));
+                    if (m) return m;
+                    var n = loadAsDirectorySync(path.resolve(x, pkg.main));
+                    if (n) return n;
+                } catch (e) {}
+            }
+        }
+
+        return loadAsFileSync(path.join(x, '/index'));
+    }
+
+    function loadNodeModulesSync(x, start) {
+        var thunk = function () { return getPackageCandidates(x, start, opts); };
+        var dirs = packageIterator ? packageIterator(x, start, thunk, opts) : thunk();
+
+        for (var i = 0; i < dirs.length; i++) {
+            var dir = dirs[i];
+            if (isDirectory(path.dirname(dir))) {
+                var m = loadAsFileSync(dir);
+                if (m) return m;
+                var n = loadAsDirectorySync(dir);
+                if (n) return n;
+            }
+        }
+    }
+};
diff --git a/node_modules/resolve/package.json b/node_modules/resolve/package.json
new file mode 100644
index 0000000..bfc6060
--- /dev/null
+++ b/node_modules/resolve/package.json
@@ -0,0 +1,82 @@
+{
+  "_from": "resolve@^1.1.7",
+  "_id": "resolve@1.19.0",
+  "_inBundle": false,
+  "_integrity": "sha512-rArEXAgsBG4UgRGcynxWIWKFvh/XZCcS8UJdHhwy91zwAvCZIbcs+vAbflgBnNjYMs/i/i+/Ux6IZhML1yPvxg==",
+  "_location": "/resolve",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "resolve@^1.1.7",
+    "name": "resolve",
+    "escapedName": "resolve",
+    "rawSpec": "^1.1.7",
+    "saveSpec": null,
+    "fetchSpec": "^1.1.7"
+  },
+  "_requiredBy": [
+    "/liftoff",
+    "/normalize-package-data",
+    "/rechoir"
+  ],
+  "_resolved": "https://registry.npmjs.org/resolve/-/resolve-1.19.0.tgz",
+  "_shasum": "1af5bf630409734a067cae29318aac7fa29a267c",
+  "_spec": "resolve@^1.1.7",
+  "_where": "C:\\Users\\marcr\\Desktop\\KorAp\\Git\\Kalamar\\node_modules\\liftoff",
+  "author": {
+    "name": "James Halliday",
+    "email": "mail@substack.net",
+    "url": "http://substack.net"
+  },
+  "bugs": {
+    "url": "https://github.com/browserify/resolve/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "is-core-module": "^2.1.0",
+    "path-parse": "^1.0.6"
+  },
+  "deprecated": false,
+  "description": "resolve like require.resolve() on behalf of files asynchronously and synchronously",
+  "devDependencies": {
+    "@ljharb/eslint-config": "^17.2.0",
+    "array.prototype.map": "^1.0.2",
+    "aud": "^1.1.3",
+    "eclint": "^2.8.1",
+    "eslint": "^7.13.0",
+    "object-keys": "^1.1.1",
+    "safe-publish-latest": "^1.1.4",
+    "tap": "0.4.13",
+    "tape": "^5.0.1"
+  },
+  "funding": {
+    "url": "https://github.com/sponsors/ljharb"
+  },
+  "homepage": "https://github.com/browserify/resolve#readme",
+  "keywords": [
+    "resolve",
+    "require",
+    "node",
+    "module"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "resolve",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/browserify/resolve.git"
+  },
+  "scripts": {
+    "lint": "eslint --ext=js,mjs .",
+    "posttest": "npm run test:multirepo && aud --production",
+    "prelint": "eclint check '**/*'",
+    "prepublish": "safe-publish-latest && cp node_modules/is-core-module/core.json ./lib/",
+    "pretest": "npm run lint",
+    "pretests-only": "cd ./test/resolver/nested_symlinks && node mylib/sync && node mylib/async",
+    "test": "npm run --silent tests-only",
+    "test:multirepo": "cd ./test/resolver/multirepo && npm install && npm test",
+    "tests-only": "tape test/*.js"
+  },
+  "version": "1.19.0"
+}
diff --git a/node_modules/resolve/readme.markdown b/node_modules/resolve/readme.markdown
new file mode 100644
index 0000000..f742c38
--- /dev/null
+++ b/node_modules/resolve/readme.markdown
@@ -0,0 +1,250 @@
+# resolve
+
+implements the [node `require.resolve()`
+algorithm](https://nodejs.org/api/modules.html#modules_all_together)
+such that you can `require.resolve()` on behalf of a file asynchronously and
+synchronously
+
+[![build status](https://secure.travis-ci.org/browserify/resolve.png)](http://travis-ci.org/browserify/resolve)
+
+# example
+
+asynchronously resolve:
+
+```js
+var resolve = require('resolve');
+resolve('tap', { basedir: __dirname }, function (err, res) {
+    if (err) console.error(err);
+    else console.log(res);
+});
+```
+
+```
+$ node example/async.js
+/home/substack/projects/node-resolve/node_modules/tap/lib/main.js
+```
+
+synchronously resolve:
+
+```js
+var resolve = require('resolve');
+var res = resolve.sync('tap', { basedir: __dirname });
+console.log(res);
+```
+
+```
+$ node example/sync.js
+/home/substack/projects/node-resolve/node_modules/tap/lib/main.js
+```
+
+# methods
+
+```js
+var resolve = require('resolve');
+```
+
+For both the synchronous and asynchronous methods, errors may have any of the following `err.code` values:
+
+- `MODULE_NOT_FOUND`: the given path string (`id`) could not be resolved to a module
+- `INVALID_BASEDIR`: the specified `opts.basedir` doesn't exist, or is not a directory
+- `INVALID_PACKAGE_MAIN`: a `package.json` was encountered with an invalid `main` property (eg. not a string)
+
+## resolve(id, opts={}, cb)
+
+Asynchronously resolve the module path string `id` into `cb(err, res [, pkg])`, where `pkg` (if defined) is the data from `package.json`.
+
+options are:
+
+* opts.basedir - directory to begin resolving from
+
+* opts.package - `package.json` data applicable to the module being loaded
+
+* opts.extensions - array of file extensions to search in order
+
+* opts.includeCoreModules - set to `false` to exclude node core modules (e.g. `fs`) from the search
+
+* opts.readFile - how to read files asynchronously
+
+* opts.isFile - function to asynchronously test whether a file exists
+
+* opts.isDirectory - function to asynchronously test whether a directory exists
+
+* opts.realpath - function to asynchronously resolve a potential symlink to its real path
+
+* `opts.packageFilter(pkg, pkgfile, dir)` - transform the parsed package.json contents before looking at the "main" field
+  * pkg - package data
+  * pkgfile - path to package.json
+  * dir - directory for package.json
+
+* `opts.pathFilter(pkg, path, relativePath)` - transform a path within a package
+  * pkg - package data
+  * path - the path being resolved
+  * relativePath - the path relative from the package.json location
+  * returns - a relative path that will be joined from the package.json location
+
+* opts.paths - require.paths array to use if nothing is found on the normal `node_modules` recursive walk (probably don't use this)
+
+  For advanced users, `paths` can also be a `opts.paths(request, start, opts)` function
+    * request - the import specifier being resolved
+    * start - lookup path
+    * getNodeModulesDirs - a thunk (no-argument function) that returns the paths using standard `node_modules` resolution
+    * opts - the resolution options
+
+* `opts.packageIterator(request, start, opts)` - return the list of candidate paths where the packages sources may be found (probably don't use this)
+    * request - the import specifier being resolved
+    * start - lookup path
+    * getPackageCandidates - a thunk (no-argument function) that returns the paths using standard `node_modules` resolution
+    * opts - the resolution options
+
+* opts.moduleDirectory - directory (or directories) in which to recursively look for modules. default: `"node_modules"`
+
+* opts.preserveSymlinks - if true, doesn't resolve `basedir` to real path before resolving.
+This is the way Node resolves dependencies when executed with the [--preserve-symlinks](https://nodejs.org/api/all.html#cli_preserve_symlinks) flag.
+**Note:** this property is currently `true` by default but it will be changed to
+`false` in the next major version because *Node's resolution algorithm does not preserve symlinks by default*.
+
+default `opts` values:
+
+```js
+{
+    paths: [],
+    basedir: __dirname,
+    extensions: ['.js'],
+    includeCoreModules: true,
+    readFile: fs.readFile,
+    isFile: function isFile(file, cb) {
+        fs.stat(file, function (err, stat) {
+            if (!err) {
+                return cb(null, stat.isFile() || stat.isFIFO());
+            }
+            if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+            return cb(err);
+        });
+    },
+    isDirectory: function isDirectory(dir, cb) {
+        fs.stat(dir, function (err, stat) {
+            if (!err) {
+                return cb(null, stat.isDirectory());
+            }
+            if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+            return cb(err);
+        });
+    },
+    realpath: function realpath(file, cb) {
+        var realpath = typeof fs.realpath.native === 'function' ? fs.realpath.native : fs.realpath;
+        realpath(file, function (realPathErr, realPath) {
+            if (realPathErr && realPathErr.code !== 'ENOENT') cb(realPathErr);
+            else cb(null, realPathErr ? file : realPath);
+        });
+    },
+    moduleDirectory: 'node_modules',
+    preserveSymlinks: true
+}
+```
+
+## resolve.sync(id, opts)
+
+Synchronously resolve the module path string `id`, returning the result and
+throwing an error when `id` can't be resolved.
+
+options are:
+
+* opts.basedir - directory to begin resolving from
+
+* opts.extensions - array of file extensions to search in order
+
+* opts.includeCoreModules - set to `false` to exclude node core modules (e.g. `fs`) from the search
+
+* opts.readFile - how to read files synchronously
+
+* opts.isFile - function to synchronously test whether a file exists
+
+* opts.isDirectory - function to synchronously test whether a directory exists
+
+* opts.realpathSync - function to synchronously resolve a potential symlink to its real path
+
+* `opts.packageFilter(pkg, dir)` - transform the parsed package.json contents before looking at the "main" field
+  * pkg - package data
+  * dir - directory for package.json (Note: the second argument will change to "pkgfile" in v2)
+
+* `opts.pathFilter(pkg, path, relativePath)` - transform a path within a package
+  * pkg - package data
+  * path - the path being resolved
+  * relativePath - the path relative from the package.json location
+  * returns - a relative path that will be joined from the package.json location
+
+* opts.paths - require.paths array to use if nothing is found on the normal `node_modules` recursive walk (probably don't use this)
+
+  For advanced users, `paths` can also be a `opts.paths(request, start, opts)` function
+    * request - the import specifier being resolved
+    * start - lookup path
+    * getNodeModulesDirs - a thunk (no-argument function) that returns the paths using standard `node_modules` resolution
+    * opts - the resolution options
+
+* `opts.packageIterator(request, start, opts)` - return the list of candidate paths where the packages sources may be found (probably don't use this)
+    * request - the import specifier being resolved
+    * start - lookup path
+    * getPackageCandidates - a thunk (no-argument function) that returns the paths using standard `node_modules` resolution
+    * opts - the resolution options
+
+* opts.moduleDirectory - directory (or directories) in which to recursively look for modules. default: `"node_modules"`
+
+* opts.preserveSymlinks - if true, doesn't resolve `basedir` to real path before resolving.
+This is the way Node resolves dependencies when executed with the [--preserve-symlinks](https://nodejs.org/api/all.html#cli_preserve_symlinks) flag.
+**Note:** this property is currently `true` by default but it will be changed to
+`false` in the next major version because *Node's resolution algorithm does not preserve symlinks by default*.
+
+default `opts` values:
+
+```js
+{
+    paths: [],
+    basedir: __dirname,
+    extensions: ['.js'],
+    includeCoreModules: true,
+    readFileSync: fs.readFileSync,
+    isFile: function isFile(file) {
+        try {
+            var stat = fs.statSync(file);
+        } catch (e) {
+            if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
+            throw e;
+        }
+        return stat.isFile() || stat.isFIFO();
+    },
+    isDirectory: function isDirectory(dir) {
+        try {
+            var stat = fs.statSync(dir);
+        } catch (e) {
+            if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
+            throw e;
+        }
+        return stat.isDirectory();
+    },
+    realpathSync: function realpathSync(file) {
+        try {
+            var realpath = typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
+            return realpath(file);
+        } catch (realPathErr) {
+            if (realPathErr.code !== 'ENOENT') {
+                throw realPathErr;
+            }
+        }
+        return file;
+    },
+    moduleDirectory: 'node_modules',
+    preserveSymlinks: true
+}
+```
+
+# install
+
+With [npm](https://npmjs.org) do:
+
+```sh
+npm install resolve
+```
+
+# license
+
+MIT
diff --git a/node_modules/resolve/test/.eslintrc b/node_modules/resolve/test/.eslintrc
new file mode 100644
index 0000000..ddd262d
--- /dev/null
+++ b/node_modules/resolve/test/.eslintrc
@@ -0,0 +1,5 @@
+{
+    "rules": {
+        "max-lines": 0
+    }
+}
diff --git a/node_modules/resolve/test/core.js b/node_modules/resolve/test/core.js
new file mode 100644
index 0000000..7a3ccb1
--- /dev/null
+++ b/node_modules/resolve/test/core.js
@@ -0,0 +1,81 @@
+var test = require('tape');
+var keys = require('object-keys');
+var resolve = require('../');
+
+test('core modules', function (t) {
+    t.test('isCore()', function (st) {
+        st.ok(resolve.isCore('fs'));
+        st.ok(resolve.isCore('net'));
+        st.ok(resolve.isCore('http'));
+
+        st.ok(!resolve.isCore('seq'));
+        st.ok(!resolve.isCore('../'));
+
+        st.ok(!resolve.isCore('toString'));
+
+        st.end();
+    });
+
+    t.test('core list', function (st) {
+        var cores = keys(resolve.core);
+        st.plan(cores.length);
+
+        for (var i = 0; i < cores.length; ++i) {
+            var mod = cores[i];
+            var requireFunc = function () { require(mod); }; // eslint-disable-line no-loop-func
+            console.log(mod, resolve.core, resolve.core[mod]);
+            if (resolve.core[mod]) {
+                st.doesNotThrow(requireFunc, mod + ' supported; requiring does not throw');
+            } else {
+                st.throws(requireFunc, mod + ' not supported; requiring throws');
+            }
+        }
+
+        st.end();
+    });
+
+    t.test('core via repl module', { skip: !resolve.core.repl }, function (st) {
+        var libs = require('repl')._builtinLibs; // eslint-disable-line no-underscore-dangle
+        if (!libs) {
+            st.skip('module.builtinModules does not exist');
+            return st.end();
+        }
+        for (var i = 0; i < libs.length; ++i) {
+            var mod = libs[i];
+            st.ok(resolve.core[mod], mod + ' is a core module');
+            st.doesNotThrow(
+                function () { require(mod); }, // eslint-disable-line no-loop-func
+                'requiring ' + mod + ' does not throw'
+            );
+        }
+        st.end();
+    });
+
+    t.test('core via builtinModules list', { skip: !resolve.core.module }, function (st) {
+        var libs = require('module').builtinModules;
+        if (!libs) {
+            st.skip('module.builtinModules does not exist');
+            return st.end();
+        }
+        var blacklist = [
+            '_debug_agent',
+            'v8/tools/tickprocessor-driver',
+            'v8/tools/SourceMap',
+            'v8/tools/tickprocessor',
+            'v8/tools/profile'
+        ];
+        for (var i = 0; i < libs.length; ++i) {
+            var mod = libs[i];
+            if (blacklist.indexOf(mod) === -1) {
+                st.ok(resolve.core[mod], mod + ' is a core module');
+                st.doesNotThrow(
+                    function () { require(mod); }, // eslint-disable-line no-loop-func
+                    'requiring ' + mod + ' does not throw'
+                );
+            }
+        }
+        st.end();
+    });
+
+    t.end();
+});
diff --git a/node_modules/resolve/test/dotdot.js b/node_modules/resolve/test/dotdot.js
new file mode 100644
index 0000000..3080665
--- /dev/null
+++ b/node_modules/resolve/test/dotdot.js
@@ -0,0 +1,29 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('dotdot', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, '/dotdot/abc');
+
+    resolve('..', { basedir: dir }, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(__dirname, 'dotdot/index.js'));
+    });
+
+    resolve('.', { basedir: dir }, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, 'index.js'));
+    });
+});
+
+test('dotdot sync', function (t) {
+    t.plan(2);
+    var dir = path.join(__dirname, '/dotdot/abc');
+
+    var a = resolve.sync('..', { basedir: dir });
+    t.equal(a, path.join(__dirname, 'dotdot/index.js'));
+
+    var b = resolve.sync('.', { basedir: dir });
+    t.equal(b, path.join(dir, 'index.js'));
+});
diff --git a/node_modules/resolve/test/dotdot/abc/index.js b/node_modules/resolve/test/dotdot/abc/index.js
new file mode 100644
index 0000000..67f2534
--- /dev/null
+++ b/node_modules/resolve/test/dotdot/abc/index.js
@@ -0,0 +1,2 @@
+var x = require('..');
+console.log(x);
diff --git a/node_modules/resolve/test/dotdot/index.js b/node_modules/resolve/test/dotdot/index.js
new file mode 100644
index 0000000..643f9fc
--- /dev/null
+++ b/node_modules/resolve/test/dotdot/index.js
@@ -0,0 +1 @@
+module.exports = 'whatever';
diff --git a/node_modules/resolve/test/faulty_basedir.js b/node_modules/resolve/test/faulty_basedir.js
new file mode 100644
index 0000000..5f2141a
--- /dev/null
+++ b/node_modules/resolve/test/faulty_basedir.js
@@ -0,0 +1,29 @@
+var test = require('tape');
+var path = require('path');
+var resolve = require('../');
+
+test('faulty basedir must produce error in windows', { skip: process.platform !== 'win32' }, function (t) {
+    t.plan(1);
+
+    var resolverDir = 'C:\\a\\b\\c\\d';
+
+    resolve('tape/lib/test.js', { basedir: resolverDir }, function (err, res, pkg) {
+        t.equal(!!err, true);
+    });
+});
+
+test('non-existent basedir should not throw when preserveSymlinks is false', function (t) {
+    t.plan(2);
+
+    var opts = {
+        basedir: path.join(path.sep, 'unreal', 'path', 'that', 'does', 'not', 'exist'),
+        preserveSymlinks: false
+    };
+
+    var module = './dotdot/abc';
+
+    resolve(module, opts, function (err, res) {
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+        t.equal(res, undefined);
+    });
+});
diff --git a/node_modules/resolve/test/filter.js b/node_modules/resolve/test/filter.js
new file mode 100644
index 0000000..8f8cccd
--- /dev/null
+++ b/node_modules/resolve/test/filter.js
@@ -0,0 +1,34 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('filter', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, 'resolver');
+    var packageFilterArgs;
+    resolve('./baz', {
+        basedir: dir,
+        packageFilter: function (pkg, pkgfile) {
+            pkg.main = 'doom'; // eslint-disable-line no-param-reassign
+            packageFilterArgs = [pkg, pkgfile];
+            return pkg;
+        }
+    }, function (err, res, pkg) {
+        if (err) t.fail(err);
+
+        t.equal(res, path.join(dir, 'baz/doom.js'), 'changing the package "main" works');
+
+        var packageData = packageFilterArgs[0];
+        t.equal(pkg, packageData, 'first packageFilter argument is "pkg"');
+        t.equal(packageData.main, 'doom', 'package "main" was altered');
+
+        var packageFile = packageFilterArgs[1];
+        t.equal(
+            packageFile,
+            path.join(dir, 'baz/package.json'),
+            'second packageFilter argument is "pkgfile"'
+        );
+
+        t.end();
+    });
+});
diff --git a/node_modules/resolve/test/filter_sync.js b/node_modules/resolve/test/filter_sync.js
new file mode 100644
index 0000000..8a43b98
--- /dev/null
+++ b/node_modules/resolve/test/filter_sync.js
@@ -0,0 +1,33 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('filter', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    var packageFilterArgs;
+    var res = resolve.sync('./baz', {
+        basedir: dir,
+        // NOTE: in v2.x, this will be `pkg, pkgfile, dir`, but must remain "broken" here in v1.x for compatibility
+        packageFilter: function (pkg, /*pkgfile,*/ dir) { // eslint-disable-line spaced-comment
+            pkg.main = 'doom'; // eslint-disable-line no-param-reassign
+            packageFilterArgs = 'is 1.x' ? [pkg, dir] : [pkg, pkgfile, dir]; // eslint-disable-line no-constant-condition, no-undef
+            return pkg;
+        }
+    });
+
+    t.equal(res, path.join(dir, 'baz/doom.js'), 'changing the package "main" works');
+
+    var packageData = packageFilterArgs[0];
+    t.equal(packageData.main, 'doom', 'package "main" was altered');
+
+    if (!'is 1.x') { // eslint-disable-line no-constant-condition
+        var packageFile = packageFilterArgs[1];
+        t.equal(packageFile, path.join(dir, 'baz', 'package.json'), 'package.json path is correct');
+    }
+
+    var packageDir = packageFilterArgs['is 1.x' ? 1 : 2]; // eslint-disable-line no-constant-condition
+    // eslint-disable-next-line no-constant-condition
+    t.equal(packageDir, path.join(dir, 'baz'), ('is 1.x' ? 'second' : 'third') + ' packageFilter argument is "dir"');
+
+    t.end();
+});
diff --git a/node_modules/resolve/test/mock.js b/node_modules/resolve/test/mock.js
new file mode 100644
index 0000000..b9f17fe
--- /dev/null
+++ b/node_modules/resolve/test/mock.js
@@ -0,0 +1,239 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('mock', function (t) {
+    t.plan(8);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            isDirectory: function (dir, cb) {
+                cb(null, !!dirs[path.resolve(dir)]);
+            },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            },
+            realpath: function (file, cb) {
+                cb(null, file);
+            }
+        };
+    }
+
+    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module 'baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    resolve('../baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module '../baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('mock from package', function (t) {
+    t.plan(8);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, file));
+            },
+            isDirectory: function (dir, cb) {
+                cb(null, !!dirs[path.resolve(dir)]);
+            },
+            'package': { main: 'bar' },
+            readFile: function (file, cb) {
+                cb(null, files[file]);
+            },
+            realpath: function (file, cb) {
+                cb(null, file);
+            }
+        };
+    }
+
+    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg && pkg.main, 'bar');
+    });
+
+    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg && pkg.main, 'bar');
+    });
+
+    resolve('baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module 'baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    resolve('../baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module '../baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('mock package', function (t) {
+    t.plan(2);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    var dirs = {};
+    dirs[path.resolve('/foo')] = true;
+    dirs[path.resolve('/foo/node_modules')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            isDirectory: function (dir, cb) {
+                cb(null, !!dirs[path.resolve(dir)]);
+            },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            },
+            realpath: function (file, cb) {
+                cb(null, file);
+            }
+        };
+    }
+
+    resolve('bar', opts('/foo'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
+        t.equal(pkg && pkg.main, './baz.js');
+    });
+});
+
+test('mock package from package', function (t) {
+    t.plan(2);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    var dirs = {};
+    dirs[path.resolve('/foo')] = true;
+    dirs[path.resolve('/foo/node_modules')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            isDirectory: function (dir, cb) {
+                cb(null, !!dirs[path.resolve(dir)]);
+            },
+            'package': { main: 'bar' },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            },
+            realpath: function (file, cb) {
+                cb(null, file);
+            }
+        };
+    }
+
+    resolve('bar', opts('/foo'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
+        t.equal(pkg && pkg.main, './baz.js');
+    });
+});
+
+test('symlinked', function (t) {
+    t.plan(4);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/bar/symlinked/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+    dirs[path.resolve('/foo/bar/symlinked')] = true;
+
+    function opts(basedir) {
+        return {
+            preserveSymlinks: false,
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            isDirectory: function (dir, cb) {
+                cb(null, !!dirs[path.resolve(dir)]);
+            },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            },
+            realpath: function (file, cb) {
+                var resolved = path.resolve(file);
+
+                if (resolved.indexOf('symlinked') >= 0) {
+                    cb(null, resolved);
+                    return;
+                }
+
+                var ext = path.extname(resolved);
+
+                if (ext) {
+                    var dir = path.dirname(resolved);
+                    var base = path.basename(resolved);
+                    cb(null, path.join(dir, 'symlinked', base));
+                } else {
+                    cb(null, path.join(resolved, 'symlinked'));
+                }
+            }
+        };
+    }
+
+    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/symlinked/baz.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/symlinked/baz.js'));
+        t.equal(pkg, undefined);
+    });
+});
diff --git a/node_modules/resolve/test/mock_sync.js b/node_modules/resolve/test/mock_sync.js
new file mode 100644
index 0000000..fcf8114
--- /dev/null
+++ b/node_modules/resolve/test/mock_sync.js
@@ -0,0 +1,141 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('mock', function (t) {
+    t.plan(4);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                return file;
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('./baz', opts('/foo/bar')),
+        path.resolve('/foo/bar/baz.js')
+    );
+
+    t.equal(
+        resolve.sync('./baz.js', opts('/foo/bar')),
+        path.resolve('/foo/bar/baz.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('baz', opts('/foo/bar'));
+    });
+
+    t.throws(function () {
+        resolve.sync('../baz', opts('/foo/bar'));
+    });
+});
+
+test('mock package', function (t) {
+    t.plan(1);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    var dirs = {};
+    dirs[path.resolve('/foo')] = true;
+    dirs[path.resolve('/foo/node_modules')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                return file;
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('bar', opts('/foo')),
+        path.resolve('/foo/node_modules/bar/baz.js')
+    );
+});
+
+test('symlinked', function (t) {
+    t.plan(2);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/bar/symlinked/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+    dirs[path.resolve('/foo/bar/symlinked')] = true;
+
+    function opts(basedir) {
+        return {
+            preserveSymlinks: false,
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                var resolved = path.resolve(file);
+
+                if (resolved.indexOf('symlinked') >= 0) {
+                    return resolved;
+                }
+
+                var ext = path.extname(resolved);
+
+                if (ext) {
+                    var dir = path.dirname(resolved);
+                    var base = path.basename(resolved);
+                    return path.join(dir, 'symlinked', base);
+                } else {
+                    return path.join(resolved, 'symlinked');
+                }
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('./baz', opts('/foo/bar')),
+        path.resolve('/foo/bar/symlinked/baz.js')
+    );
+
+    t.equal(
+        resolve.sync('./baz.js', opts('/foo/bar')),
+        path.resolve('/foo/bar/symlinked/baz.js')
+    );
+});
diff --git a/node_modules/resolve/test/module_dir.js b/node_modules/resolve/test/module_dir.js
new file mode 100644
index 0000000..b50e5bb
--- /dev/null
+++ b/node_modules/resolve/test/module_dir.js
@@ -0,0 +1,56 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('moduleDirectory strings', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, 'module_dir');
+    var xopts = {
+        basedir: dir,
+        moduleDirectory: 'xmodules'
+    };
+    resolve('aaa', xopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/xmodules/aaa/index.js'));
+    });
+
+    var yopts = {
+        basedir: dir,
+        moduleDirectory: 'ymodules'
+    };
+    resolve('aaa', yopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/ymodules/aaa/index.js'));
+    });
+});
+
+test('moduleDirectory array', function (t) {
+    t.plan(6);
+    var dir = path.join(__dirname, 'module_dir');
+    var aopts = {
+        basedir: dir,
+        moduleDirectory: ['xmodules', 'ymodules', 'zmodules']
+    };
+    resolve('aaa', aopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/xmodules/aaa/index.js'));
+    });
+
+    var bopts = {
+        basedir: dir,
+        moduleDirectory: ['zmodules', 'ymodules', 'xmodules']
+    };
+    resolve('aaa', bopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/ymodules/aaa/index.js'));
+    });
+
+    var copts = {
+        basedir: dir,
+        moduleDirectory: ['xmodules', 'ymodules', 'zmodules']
+    };
+    resolve('bbb', copts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/zmodules/bbb/main.js'));
+    });
+});
diff --git a/node_modules/resolve/test/module_dir/xmodules/aaa/index.js b/node_modules/resolve/test/module_dir/xmodules/aaa/index.js
new file mode 100644
index 0000000..dd7cf7b
--- /dev/null
+++ b/node_modules/resolve/test/module_dir/xmodules/aaa/index.js
@@ -0,0 +1 @@
+module.exports = function (x) { return x * 100; };
diff --git a/node_modules/resolve/test/module_dir/ymodules/aaa/index.js b/node_modules/resolve/test/module_dir/ymodules/aaa/index.js
new file mode 100644
index 0000000..ef2d4d4
--- /dev/null
+++ b/node_modules/resolve/test/module_dir/ymodules/aaa/index.js
@@ -0,0 +1 @@
+module.exports = function (x) { return x + 100; };
diff --git a/node_modules/resolve/test/module_dir/zmodules/bbb/main.js b/node_modules/resolve/test/module_dir/zmodules/bbb/main.js
new file mode 100644
index 0000000..e8ba629
--- /dev/null
+++ b/node_modules/resolve/test/module_dir/zmodules/bbb/main.js
@@ -0,0 +1 @@
+module.exports = function (n) { return n * 111; };
diff --git a/node_modules/resolve/test/module_dir/zmodules/bbb/package.json b/node_modules/resolve/test/module_dir/zmodules/bbb/package.json
new file mode 100644
index 0000000..c13b8cf
--- /dev/null
+++ b/node_modules/resolve/test/module_dir/zmodules/bbb/package.json
@@ -0,0 +1,3 @@
+{
+  "main": "main.js"
+}
diff --git a/node_modules/resolve/test/node-modules-paths.js b/node_modules/resolve/test/node-modules-paths.js
new file mode 100644
index 0000000..675441d
--- /dev/null
+++ b/node_modules/resolve/test/node-modules-paths.js
@@ -0,0 +1,143 @@
+var test = require('tape');
+var path = require('path');
+var parse = path.parse || require('path-parse');
+var keys = require('object-keys');
+
+var nodeModulesPaths = require('../lib/node-modules-paths');
+
+var verifyDirs = function verifyDirs(t, start, dirs, moduleDirectories, paths) {
+    var moduleDirs = [].concat(moduleDirectories || 'node_modules');
+    if (paths) {
+        for (var k = 0; k < paths.length; ++k) {
+            moduleDirs.push(path.basename(paths[k]));
+        }
+    }
+
+    var foundModuleDirs = {};
+    var uniqueDirs = {};
+    var parsedDirs = {};
+    for (var i = 0; i < dirs.length; ++i) {
+        var parsed = parse(dirs[i]);
+        if (!foundModuleDirs[parsed.base]) { foundModuleDirs[parsed.base] = 0; }
+        foundModuleDirs[parsed.base] += 1;
+        parsedDirs[parsed.dir] = true;
+        uniqueDirs[dirs[i]] = true;
+    }
+    t.equal(keys(parsedDirs).length >= start.split(path.sep).length, true, 'there are >= dirs than "start" has');
+    var foundModuleDirNames = keys(foundModuleDirs);
+    t.deepEqual(foundModuleDirNames, moduleDirs, 'all desired module dirs were found');
+    t.equal(keys(uniqueDirs).length, dirs.length, 'all dirs provided were unique');
+
+    var counts = {};
+    for (var j = 0; j < foundModuleDirNames.length; ++j) {
+        counts[foundModuleDirs[j]] = true;
+    }
+    t.equal(keys(counts).length, 1, 'all found module directories had the same count');
+};
+
+test('node-modules-paths', function (t) {
+    t.test('no options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start);
+
+        verifyDirs(t, start, dirs);
+
+        t.end();
+    });
+
+    t.test('empty options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, {});
+
+        verifyDirs(t, start, dirs);
+
+        t.end();
+    });
+
+    t.test('with paths=array option', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var paths = ['a', 'b'];
+        var dirs = nodeModulesPaths(start, { paths: paths });
+
+        verifyDirs(t, start, dirs, null, paths);
+
+        t.end();
+    });
+
+    t.test('with paths=function option', function (t) {
+        var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
+            return getNodeModulesDirs().concat(path.join(absoluteStart, 'not node modules', request));
+        };
+
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, { paths: paths }, 'pkg');
+
+        verifyDirs(t, start, dirs, null, [path.join(start, 'not node modules', 'pkg')]);
+
+        t.end();
+    });
+
+    t.test('with paths=function skipping node modules resolution', function (t) {
+        var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
+            return [];
+        };
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, { paths: paths });
+        t.deepEqual(dirs, [], 'no node_modules was computed');
+        t.end();
+    });
+
+    t.test('with moduleDirectory option', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var moduleDirectory = 'not node modules';
+        var dirs = nodeModulesPaths(start, { moduleDirectory: moduleDirectory });
+
+        verifyDirs(t, start, dirs, moduleDirectory);
+
+        t.end();
+    });
+
+    t.test('with 1 moduleDirectory and paths options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var paths = ['a', 'b'];
+        var moduleDirectory = 'not node modules';
+        var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectory });
+
+        verifyDirs(t, start, dirs, moduleDirectory, paths);
+
+        t.end();
+    });
+
+    t.test('with 1+ moduleDirectory and paths options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var paths = ['a', 'b'];
+        var moduleDirectories = ['not node modules', 'other modules'];
+        var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
+
+        verifyDirs(t, start, dirs, moduleDirectories, paths);
+
+        t.end();
+    });
+
+    t.test('combine paths correctly on Windows', function (t) {
+        var start = 'C:\\Users\\username\\myProject\\src';
+        var paths = [];
+        var moduleDirectories = ['node_modules', start];
+        var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
+
+        t.equal(dirs.indexOf(path.resolve(start)) > -1, true, 'should contain start dir');
+
+        t.end();
+    });
+
+    t.test('combine paths correctly on non-Windows', { skip: process.platform === 'win32' }, function (t) {
+        var start = '/Users/username/git/myProject/src';
+        var paths = [];
+        var moduleDirectories = ['node_modules', '/Users/username/git/myProject/src'];
+        var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
+
+        t.equal(dirs.indexOf(path.resolve(start)) > -1, true, 'should contain start dir');
+
+        t.end();
+    });
+});
diff --git a/node_modules/resolve/test/node_path.js b/node_modules/resolve/test/node_path.js
new file mode 100644
index 0000000..d06aa4e
--- /dev/null
+++ b/node_modules/resolve/test/node_path.js
@@ -0,0 +1,70 @@
+var fs = require('fs');
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('$NODE_PATH', function (t) {
+    t.plan(8);
+
+    var isDir = function (dir, cb) {
+        if (dir === '/node_path' || dir === 'node_path/x') {
+            return cb(null, true);
+        }
+        fs.stat(dir, function (err, stat) {
+            if (!err) {
+                return cb(null, stat.isDirectory());
+            }
+            if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+            return cb(err);
+        });
+    };
+
+    resolve('aaa', {
+        paths: [
+            path.join(__dirname, '/node_path/x'),
+            path.join(__dirname, '/node_path/y')
+        ],
+        basedir: __dirname,
+        isDirectory: isDir
+    }, function (err, res) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, '/node_path/x/aaa/index.js'), 'aaa resolves');
+    });
+
+    resolve('bbb', {
+        paths: [
+            path.join(__dirname, '/node_path/x'),
+            path.join(__dirname, '/node_path/y')
+        ],
+        basedir: __dirname,
+        isDirectory: isDir
+    }, function (err, res) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, '/node_path/y/bbb/index.js'), 'bbb resolves');
+    });
+
+    resolve('ccc', {
+        paths: [
+            path.join(__dirname, '/node_path/x'),
+            path.join(__dirname, '/node_path/y')
+        ],
+        basedir: __dirname,
+        isDirectory: isDir
+    }, function (err, res) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, '/node_path/x/ccc/index.js'), 'ccc resolves');
+    });
+
+    // ensure that relative paths still resolve against the regular `node_modules` correctly
+    resolve('tap', {
+        paths: [
+            'node_path'
+        ],
+        basedir: path.join(__dirname, 'node_path/x'),
+        isDirectory: isDir
+    }, function (err, res) {
+        var root = require('tap/package.json').main;
+        t.error(err);
+        t.equal(res, path.resolve(__dirname, '..', 'node_modules/tap', root), 'tap resolves');
+    });
+});
diff --git a/node_modules/resolve/test/node_path/x/aaa/index.js b/node_modules/resolve/test/node_path/x/aaa/index.js
new file mode 100644
index 0000000..ad70d0b
--- /dev/null
+++ b/node_modules/resolve/test/node_path/x/aaa/index.js
@@ -0,0 +1 @@
+module.exports = 'A';
diff --git a/node_modules/resolve/test/node_path/x/ccc/index.js b/node_modules/resolve/test/node_path/x/ccc/index.js
new file mode 100644
index 0000000..a64132e
--- /dev/null
+++ b/node_modules/resolve/test/node_path/x/ccc/index.js
@@ -0,0 +1 @@
+module.exports = 'C';
diff --git a/node_modules/resolve/test/node_path/y/bbb/index.js b/node_modules/resolve/test/node_path/y/bbb/index.js
new file mode 100644
index 0000000..4d0f32e
--- /dev/null
+++ b/node_modules/resolve/test/node_path/y/bbb/index.js
@@ -0,0 +1 @@
+module.exports = 'B';
diff --git a/node_modules/resolve/test/node_path/y/ccc/index.js b/node_modules/resolve/test/node_path/y/ccc/index.js
new file mode 100644
index 0000000..793315e
--- /dev/null
+++ b/node_modules/resolve/test/node_path/y/ccc/index.js
@@ -0,0 +1 @@
+module.exports = 'CY';
diff --git a/node_modules/resolve/test/nonstring.js b/node_modules/resolve/test/nonstring.js
new file mode 100644
index 0000000..ef63c40
--- /dev/null
+++ b/node_modules/resolve/test/nonstring.js
@@ -0,0 +1,9 @@
+var test = require('tape');
+var resolve = require('../');
+
+test('nonstring', function (t) {
+    t.plan(1);
+    resolve(555, function (err, res, pkg) {
+        t.ok(err);
+    });
+});
diff --git a/node_modules/resolve/test/pathfilter.js b/node_modules/resolve/test/pathfilter.js
new file mode 100644
index 0000000..16519ae
--- /dev/null
+++ b/node_modules/resolve/test/pathfilter.js
@@ -0,0 +1,75 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+var resolverDir = path.join(__dirname, '/pathfilter/deep_ref');
+
+var pathFilterFactory = function (t) {
+    return function (pkg, x, remainder) {
+        t.equal(pkg.version, '1.2.3');
+        t.equal(x, path.join(resolverDir, 'node_modules/deep/ref'));
+        t.equal(remainder, 'ref');
+        return 'alt';
+    };
+};
+
+test('#62: deep module references and the pathFilter', function (t) {
+    t.test('deep/ref.js', function (st) {
+        st.plan(3);
+
+        resolve('deep/ref', { basedir: resolverDir }, function (err, res, pkg) {
+            if (err) st.fail(err);
+
+            st.equal(pkg.version, '1.2.3');
+            st.equal(res, path.join(resolverDir, 'node_modules/deep/ref.js'));
+        });
+
+        var res = resolve.sync('deep/ref', { basedir: resolverDir });
+        st.equal(res, path.join(resolverDir, 'node_modules/deep/ref.js'));
+    });
+
+    t.test('deep/deeper/ref', function (st) {
+        st.plan(4);
+
+        resolve(
+            'deep/deeper/ref',
+            { basedir: resolverDir },
+            function (err, res, pkg) {
+                if (err) t.fail(err);
+                st.notEqual(pkg, undefined);
+                st.equal(pkg.version, '1.2.3');
+                st.equal(res, path.join(resolverDir, 'node_modules/deep/deeper/ref.js'));
+            }
+        );
+
+        var res = resolve.sync(
+            'deep/deeper/ref',
+            { basedir: resolverDir }
+        );
+        st.equal(res, path.join(resolverDir, 'node_modules/deep/deeper/ref.js'));
+    });
+
+    t.test('deep/ref alt', function (st) {
+        st.plan(8);
+
+        var pathFilter = pathFilterFactory(st);
+
+        var res = resolve.sync(
+            'deep/ref',
+            { basedir: resolverDir, pathFilter: pathFilter }
+        );
+        st.equal(res, path.join(resolverDir, 'node_modules/deep/alt.js'));
+
+        resolve(
+            'deep/ref',
+            { basedir: resolverDir, pathFilter: pathFilter },
+            function (err, res, pkg) {
+                if (err) st.fail(err);
+                st.equal(res, path.join(resolverDir, 'node_modules/deep/alt.js'));
+                st.end();
+            }
+        );
+    });
+
+    t.end();
+});
diff --git a/node_modules/resolve/test/pathfilter/deep_ref/main.js b/node_modules/resolve/test/pathfilter/deep_ref/main.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/pathfilter/deep_ref/main.js
diff --git a/node_modules/resolve/test/precedence.js b/node_modules/resolve/test/precedence.js
new file mode 100644
index 0000000..2febb59
--- /dev/null
+++ b/node_modules/resolve/test/precedence.js
@@ -0,0 +1,23 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('precedence', function (t) {
+    t.plan(3);
+    var dir = path.join(__dirname, 'precedence/aaa');
+
+    resolve('./', { basedir: dir }, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, 'index.js'));
+        t.equal(pkg.name, 'resolve');
+    });
+});
+
+test('./ should not load ${dir}.js', function (t) { // eslint-disable-line no-template-curly-in-string
+    t.plan(1);
+    var dir = path.join(__dirname, 'precedence/bbb');
+
+    resolve('./', { basedir: dir }, function (err, res, pkg) {
+        t.ok(err);
+    });
+});
diff --git a/node_modules/resolve/test/precedence/aaa.js b/node_modules/resolve/test/precedence/aaa.js
new file mode 100644
index 0000000..b83a3e7
--- /dev/null
+++ b/node_modules/resolve/test/precedence/aaa.js
@@ -0,0 +1 @@
+module.exports = 'wtf';
diff --git a/node_modules/resolve/test/precedence/aaa/index.js b/node_modules/resolve/test/precedence/aaa/index.js
new file mode 100644
index 0000000..e0f8f6a
--- /dev/null
+++ b/node_modules/resolve/test/precedence/aaa/index.js
@@ -0,0 +1 @@
+module.exports = 'okok';
diff --git a/node_modules/resolve/test/precedence/aaa/main.js b/node_modules/resolve/test/precedence/aaa/main.js
new file mode 100644
index 0000000..93542a9
--- /dev/null
+++ b/node_modules/resolve/test/precedence/aaa/main.js
@@ -0,0 +1 @@
+console.log(require('./'));
diff --git a/node_modules/resolve/test/precedence/bbb.js b/node_modules/resolve/test/precedence/bbb.js
new file mode 100644
index 0000000..2298f47
--- /dev/null
+++ b/node_modules/resolve/test/precedence/bbb.js
@@ -0,0 +1 @@
+module.exports = '>_<';
diff --git a/node_modules/resolve/test/precedence/bbb/main.js b/node_modules/resolve/test/precedence/bbb/main.js
new file mode 100644
index 0000000..716b81d
--- /dev/null
+++ b/node_modules/resolve/test/precedence/bbb/main.js
@@ -0,0 +1 @@
+console.log(require('./')); // should throw
diff --git a/node_modules/resolve/test/resolver.js b/node_modules/resolve/test/resolver.js
new file mode 100644
index 0000000..aa36ee1
--- /dev/null
+++ b/node_modules/resolve/test/resolver.js
@@ -0,0 +1,450 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('async foo', function (t) {
+    t.plan(12);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./foo', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg && pkg.name, 'resolve');
+    });
+
+    resolve('./foo.js', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg && pkg.name, 'resolve');
+    });
+
+    resolve('./foo', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg && pkg.main, 'resolver');
+    });
+
+    resolve('./foo.js', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg.main, 'resolver');
+    });
+
+    resolve('./foo', { basedir: dir, filename: path.join(dir, 'baz.js') }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+    });
+
+    resolve('foo', { basedir: dir }, function (err) {
+        t.equal(err.message, "Cannot find module 'foo' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    // Test that filename is reported as the "from" value when passed.
+    resolve('foo', { basedir: dir, filename: path.join(dir, 'baz.js') }, function (err) {
+        t.equal(err.message, "Cannot find module 'foo' from '" + path.join(dir, 'baz.js') + "'");
+    });
+});
+
+test('bar', function (t) {
+    t.plan(6);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('foo', { basedir: dir + '/bar' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('foo', { basedir: dir + '/bar' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('foo', { basedir: dir + '/bar', 'package': { main: 'bar' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
+        t.equal(pkg.main, 'bar');
+    });
+});
+
+test('baz', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./baz', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'baz/quux.js'));
+        t.equal(pkg.main, 'quux.js');
+    });
+
+    resolve('./baz', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'baz/quux.js'));
+        t.equal(pkg.main, 'quux.js');
+    });
+});
+
+test('biz', function (t) {
+    t.plan(24);
+    var dir = path.join(__dirname, 'resolver/biz/node_modules');
+
+    resolve('./grux', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('./grux', { basedir: dir, 'package': { main: 'biz' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg.main, 'biz');
+    });
+
+    resolve('./garply', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('./garply', { basedir: dir, 'package': { main: 'biz' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('tiv', { basedir: dir + '/grux' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('tiv', { basedir: dir + '/grux', 'package': { main: 'grux' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg.main, 'grux');
+    });
+
+    resolve('tiv', { basedir: dir + '/garply' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('tiv', { basedir: dir + '/garply', 'package': { main: './lib' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('grux', { basedir: dir + '/tiv' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('grux', { basedir: dir + '/tiv', 'package': { main: 'tiv' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg.main, 'tiv');
+    });
+
+    resolve('garply', { basedir: dir + '/tiv' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('garply', { basedir: dir + '/tiv', 'package': { main: 'tiv' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+});
+
+test('quux', function (t) {
+    t.plan(2);
+    var dir = path.join(__dirname, 'resolver/quux');
+
+    resolve('./foo', { basedir: dir, 'package': { main: 'quux' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo/index.js'));
+        t.equal(pkg.main, 'quux');
+    });
+});
+
+test('normalize', function (t) {
+    t.plan(2);
+    var dir = path.join(__dirname, 'resolver/biz/node_modules/grux');
+
+    resolve('../grux', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'index.js'));
+        t.equal(pkg, undefined);
+    });
+});
+
+test('cup', function (t) {
+    t.plan(5);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./cup', { basedir: dir, extensions: ['.js', '.coffee'] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'cup.coffee'));
+    });
+
+    resolve('./cup.coffee', { basedir: dir }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'cup.coffee'));
+    });
+
+    resolve('./cup', { basedir: dir, extensions: ['.js'] }, function (err, res) {
+        t.equal(err.message, "Cannot find module './cup' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    // Test that filename is reported as the "from" value when passed.
+    resolve('./cup', { basedir: dir, extensions: ['.js'], filename: path.join(dir, 'cupboard.js') }, function (err, res) {
+        t.equal(err.message, "Cannot find module './cup' from '" + path.join(dir, 'cupboard.js') + "'");
+    });
+});
+
+test('mug', function (t) {
+    t.plan(3);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./mug', { basedir: dir }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'mug.js'));
+    });
+
+    resolve('./mug', { basedir: dir, extensions: ['.coffee', '.js'] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, '/mug.coffee'));
+    });
+
+    resolve('./mug', { basedir: dir, extensions: ['.js', '.coffee'] }, function (err, res) {
+        t.equal(res, path.join(dir, '/mug.js'));
+    });
+});
+
+test('other path', function (t) {
+    t.plan(6);
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'bar');
+    var otherDir = path.join(resolverDir, 'other_path');
+
+    resolve('root', { basedir: dir, paths: [otherDir] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(resolverDir, 'other_path/root.js'));
+    });
+
+    resolve('lib/other-lib', { basedir: dir, paths: [otherDir] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(resolverDir, 'other_path/lib/other-lib.js'));
+    });
+
+    resolve('root', { basedir: dir }, function (err, res) {
+        t.equal(err.message, "Cannot find module 'root' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    resolve('zzz', { basedir: dir, paths: [otherDir] }, function (err, res) {
+        t.equal(err.message, "Cannot find module 'zzz' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('path iterator', function (t) {
+    t.plan(2);
+
+    var resolverDir = path.join(__dirname, 'resolver');
+
+    var exactIterator = function (x, start, getPackageCandidates, opts) {
+        return [path.join(resolverDir, x)];
+    };
+
+    resolve('baz', { packageIterator: exactIterator }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(resolverDir, 'baz/quux.js'));
+        t.equal(pkg && pkg.name, 'baz');
+    });
+});
+
+test('incorrect main', function (t) {
+    t.plan(1);
+
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'incorrect_main');
+
+    resolve('./incorrect_main', { basedir: resolverDir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'index.js'));
+    });
+});
+
+test('without basedir', function (t) {
+    t.plan(1);
+
+    var dir = path.join(__dirname, 'resolver/without_basedir');
+    var tester = require(path.join(dir, 'main.js'));
+
+    tester(t, function (err, res, pkg) {
+        if (err) {
+            t.fail(err);
+        } else {
+            t.equal(res, path.join(dir, 'node_modules/mymodule.js'));
+        }
+    });
+});
+
+test('#52 - incorrectly resolves module-paths like "./someFolder/" when there is a file of the same name', function (t) {
+    t.plan(2);
+
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./foo', { basedir: path.join(dir, 'same_names') }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'same_names/foo.js'));
+    });
+
+    resolve('./foo/', { basedir: path.join(dir, 'same_names') }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'same_names/foo/index.js'));
+    });
+});
+
+test('#211 - incorrectly resolves module-paths like "." when from inside a folder with a sibling file of the same name', function (t) {
+    t.plan(2);
+
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./', { basedir: path.join(dir, 'same_names/foo') }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'same_names/foo/index.js'));
+    });
+
+    resolve('.', { basedir: path.join(dir, 'same_names/foo') }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'same_names/foo/index.js'));
+    });
+});
+
+test('async: #121 - treating an existing file as a dir when no basedir', function (t) {
+    var testFile = path.basename(__filename);
+
+    t.test('sanity check', function (st) {
+        st.plan(1);
+        resolve('./' + testFile, function (err, res, pkg) {
+            if (err) t.fail(err);
+            st.equal(res, __filename, 'sanity check');
+        });
+    });
+
+    t.test('with a fake directory', function (st) {
+        st.plan(4);
+
+        resolve('./' + testFile + '/blah', function (err, res, pkg) {
+            st.ok(err, 'there is an error');
+            st.notOk(res, 'no result');
+
+            st.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+            st.equal(
+                err && err.message,
+                'Cannot find module \'./' + testFile + '/blah\' from \'' + __dirname + '\'',
+                'can not find nonexistent module'
+            );
+            st.end();
+        });
+    });
+
+    t.end();
+});
+
+test('async dot main', function (t) {
+    var start = new Date();
+    t.plan(3);
+    resolve('./resolver/dot_main', function (err, ret) {
+        t.notOk(err);
+        t.equal(ret, path.join(__dirname, 'resolver/dot_main/index.js'));
+        t.ok(new Date() - start < 50, 'resolve.sync timedout');
+        t.end();
+    });
+});
+
+test('async dot slash main', function (t) {
+    var start = new Date();
+    t.plan(3);
+    resolve('./resolver/dot_slash_main', function (err, ret) {
+        t.notOk(err);
+        t.equal(ret, path.join(__dirname, 'resolver/dot_slash_main/index.js'));
+        t.ok(new Date() - start < 50, 'resolve.sync timedout');
+        t.end();
+    });
+});
+
+test('not a directory', function (t) {
+    t.plan(6);
+    var path = './foo';
+    resolve(path, { basedir: __filename }, function (err, res, pkg) {
+        t.ok(err, 'a non-directory errors');
+        t.equal(arguments.length, 1);
+        t.equal(res, undefined);
+        t.equal(pkg, undefined);
+
+        t.equal(err && err.message, 'Cannot find module \'' + path + '\' from \'' + __filename + '\'');
+        t.equal(err && err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('non-string "main" field in package.json', function (t) {
+    t.plan(5);
+
+    var dir = path.join(__dirname, 'resolver');
+    resolve('./invalid_main', { basedir: dir }, function (err, res, pkg) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+        t.equal(res, undefined, 'res is undefined');
+        t.equal(pkg, undefined, 'pkg is undefined');
+    });
+});
+
+test('non-string "main" field in package.json', function (t) {
+    t.plan(5);
+
+    var dir = path.join(__dirname, 'resolver');
+    resolve('./invalid_main', { basedir: dir }, function (err, res, pkg) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+        t.equal(res, undefined, 'res is undefined');
+        t.equal(pkg, undefined, 'pkg is undefined');
+    });
+});
+
+test('browser field in package.json', function (t) {
+    t.plan(3);
+
+    var dir = path.join(__dirname, 'resolver');
+    resolve(
+        './browser_field',
+        {
+            basedir: dir,
+            packageFilter: function packageFilter(pkg) {
+                if (pkg.browser) {
+                    pkg.main = pkg.browser; // eslint-disable-line no-param-reassign
+                    delete pkg.browser; // eslint-disable-line no-param-reassign
+                }
+                return pkg;
+            }
+        },
+        function (err, res, pkg) {
+            if (err) t.fail(err);
+            t.equal(res, path.join(dir, 'browser_field', 'b.js'));
+            t.equal(pkg && pkg.main, 'b');
+            t.equal(pkg && pkg.browser, undefined);
+        }
+    );
+});
diff --git a/node_modules/resolve/test/resolver/baz/doom.js b/node_modules/resolve/test/resolver/baz/doom.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/baz/doom.js
diff --git a/node_modules/resolve/test/resolver/baz/package.json b/node_modules/resolve/test/resolver/baz/package.json
new file mode 100644
index 0000000..2f77720
--- /dev/null
+++ b/node_modules/resolve/test/resolver/baz/package.json
@@ -0,0 +1,4 @@
+{
+    "name": "baz",
+    "main": "quux.js"
+}
diff --git a/node_modules/resolve/test/resolver/baz/quux.js b/node_modules/resolve/test/resolver/baz/quux.js
new file mode 100644
index 0000000..bd816ea
--- /dev/null
+++ b/node_modules/resolve/test/resolver/baz/quux.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/browser_field/a.js b/node_modules/resolve/test/resolver/browser_field/a.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/browser_field/a.js
diff --git a/node_modules/resolve/test/resolver/browser_field/b.js b/node_modules/resolve/test/resolver/browser_field/b.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/browser_field/b.js
diff --git a/node_modules/resolve/test/resolver/browser_field/package.json b/node_modules/resolve/test/resolver/browser_field/package.json
new file mode 100644
index 0000000..bf406f0
--- /dev/null
+++ b/node_modules/resolve/test/resolver/browser_field/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "browser_field",
+  "main": "a",
+  "browser": "b"
+}
diff --git a/node_modules/resolve/test/resolver/cup.coffee b/node_modules/resolve/test/resolver/cup.coffee
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/node_modules/resolve/test/resolver/cup.coffee
@@ -0,0 +1 @@
+
diff --git a/node_modules/resolve/test/resolver/dot_main/index.js b/node_modules/resolve/test/resolver/dot_main/index.js
new file mode 100644
index 0000000..bd816ea
--- /dev/null
+++ b/node_modules/resolve/test/resolver/dot_main/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/dot_main/package.json b/node_modules/resolve/test/resolver/dot_main/package.json
new file mode 100644
index 0000000..d7f4fc8
--- /dev/null
+++ b/node_modules/resolve/test/resolver/dot_main/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "."
+}
diff --git a/node_modules/resolve/test/resolver/dot_slash_main/index.js b/node_modules/resolve/test/resolver/dot_slash_main/index.js
new file mode 100644
index 0000000..bd816ea
--- /dev/null
+++ b/node_modules/resolve/test/resolver/dot_slash_main/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/dot_slash_main/package.json b/node_modules/resolve/test/resolver/dot_slash_main/package.json
new file mode 100644
index 0000000..f51287b
--- /dev/null
+++ b/node_modules/resolve/test/resolver/dot_slash_main/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "./"
+}
diff --git a/node_modules/resolve/test/resolver/foo.js b/node_modules/resolve/test/resolver/foo.js
new file mode 100644
index 0000000..bd816ea
--- /dev/null
+++ b/node_modules/resolve/test/resolver/foo.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/incorrect_main/index.js b/node_modules/resolve/test/resolver/incorrect_main/index.js
new file mode 100644
index 0000000..bc1fb0a
--- /dev/null
+++ b/node_modules/resolve/test/resolver/incorrect_main/index.js
@@ -0,0 +1,2 @@
+// this is the actual main file 'index.js', not 'wrong.js' like the package.json would indicate
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/incorrect_main/package.json b/node_modules/resolve/test/resolver/incorrect_main/package.json
new file mode 100644
index 0000000..b718804
--- /dev/null
+++ b/node_modules/resolve/test/resolver/incorrect_main/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "wrong.js"
+}
diff --git a/node_modules/resolve/test/resolver/invalid_main/package.json b/node_modules/resolve/test/resolver/invalid_main/package.json
new file mode 100644
index 0000000..0cf8279
--- /dev/null
+++ b/node_modules/resolve/test/resolver/invalid_main/package.json
@@ -0,0 +1,7 @@
+{
+  "name": "invalid main",
+  "main": [
+    "why is this a thing",
+    "srsly omg wtf"
+  ]
+}
diff --git a/node_modules/resolve/test/resolver/mug.coffee b/node_modules/resolve/test/resolver/mug.coffee
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/mug.coffee
diff --git a/node_modules/resolve/test/resolver/mug.js b/node_modules/resolve/test/resolver/mug.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/mug.js
diff --git a/node_modules/resolve/test/resolver/multirepo/lerna.json b/node_modules/resolve/test/resolver/multirepo/lerna.json
new file mode 100644
index 0000000..d6707ca
--- /dev/null
+++ b/node_modules/resolve/test/resolver/multirepo/lerna.json
@@ -0,0 +1,6 @@
+{
+  "packages": [
+    "packages/*"
+  ],
+  "version": "0.0.0"
+}
diff --git a/node_modules/resolve/test/resolver/multirepo/package.json b/node_modules/resolve/test/resolver/multirepo/package.json
new file mode 100644
index 0000000..8508f9d
--- /dev/null
+++ b/node_modules/resolve/test/resolver/multirepo/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "monorepo-symlink-test",
+  "private": true,
+  "version": "0.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "postinstall": "lerna bootstrap",
+    "test": "node packages/package-a"
+  },
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "jquery": "^3.3.1",
+    "resolve": "../../../"
+  },
+  "devDependencies": {
+    "lerna": "^3.4.3"
+  }
+}
diff --git a/node_modules/resolve/test/resolver/multirepo/packages/package-a/index.js b/node_modules/resolve/test/resolver/multirepo/packages/package-a/index.js
new file mode 100644
index 0000000..8875a32
--- /dev/null
+++ b/node_modules/resolve/test/resolver/multirepo/packages/package-a/index.js
@@ -0,0 +1,35 @@
+'use strict';
+
+var assert = require('assert');
+var path = require('path');
+var resolve = require('resolve');
+
+var basedir = __dirname + '/node_modules/@my-scope/package-b';
+
+var expected = path.join(__dirname, '../../node_modules/jquery/dist/jquery.js');
+
+/*
+ * preserveSymlinks === false
+ * will search NPM package from
+ * - packages/package-b/node_modules
+ * - packages/node_modules
+ * - node_modules
+ */
+assert.equal(resolve.sync('jquery', { basedir: basedir, preserveSymlinks: false }), expected);
+assert.equal(resolve.sync('../../node_modules/jquery', { basedir: basedir, preserveSymlinks: false }), expected);
+
+/*
+ * preserveSymlinks === true
+ * will search NPM package from
+ * - packages/package-a/node_modules/@my-scope/packages/package-b/node_modules
+ * - packages/package-a/node_modules/@my-scope/packages/node_modules
+ * - packages/package-a/node_modules/@my-scope/node_modules
+ * - packages/package-a/node_modules/node_modules
+ * - packages/package-a/node_modules
+ * - packages/node_modules
+ * - node_modules
+ */
+assert.equal(resolve.sync('jquery', { basedir: basedir, preserveSymlinks: true }), expected);
+assert.equal(resolve.sync('../../../../../node_modules/jquery', { basedir: basedir, preserveSymlinks: true }), expected);
+
+console.log(' * all monorepo paths successfully resolved through symlinks');
diff --git a/node_modules/resolve/test/resolver/multirepo/packages/package-a/package.json b/node_modules/resolve/test/resolver/multirepo/packages/package-a/package.json
new file mode 100644
index 0000000..204de51
--- /dev/null
+++ b/node_modules/resolve/test/resolver/multirepo/packages/package-a/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@my-scope/package-a",
+  "version": "0.0.0",
+  "private": true,
+  "description": "",
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: run tests from root\" && exit 1"
+  },
+  "dependencies": {
+    "@my-scope/package-b": "^0.0.0"
+  }
+}
diff --git a/node_modules/resolve/test/resolver/multirepo/packages/package-b/index.js b/node_modules/resolve/test/resolver/multirepo/packages/package-b/index.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/multirepo/packages/package-b/index.js
diff --git a/node_modules/resolve/test/resolver/multirepo/packages/package-b/package.json b/node_modules/resolve/test/resolver/multirepo/packages/package-b/package.json
new file mode 100644
index 0000000..f57c3b5
--- /dev/null
+++ b/node_modules/resolve/test/resolver/multirepo/packages/package-b/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@my-scope/package-b",
+  "private": true,
+  "version": "0.0.0",
+  "description": "",
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: run tests from root\" && exit 1"
+  },
+  "dependencies": {
+    "@my-scope/package-a": "^0.0.0"
+  }
+}
diff --git a/node_modules/resolve/test/resolver/nested_symlinks/mylib/async.js b/node_modules/resolve/test/resolver/nested_symlinks/mylib/async.js
new file mode 100644
index 0000000..9b4846a
--- /dev/null
+++ b/node_modules/resolve/test/resolver/nested_symlinks/mylib/async.js
@@ -0,0 +1,26 @@
+var a = require.resolve('buffer/').replace(process.cwd(), '$CWD');
+var b;
+var c;
+
+var test = function test() {
+    console.log(a, ': require.resolve, preserveSymlinks ' + (process.execArgv.indexOf('preserve-symlinks') > -1 ? 'true' : 'false'));
+    console.log(b, ': preserveSymlinks true');
+    console.log(c, ': preserveSymlinks false');
+
+    if (a !== b && a !== c) {
+        throw 'async: no match';
+    }
+    console.log('async: success! a matched either b or c\n');
+};
+
+require('resolve')('buffer/', { preserveSymlinks: true }, function (err, result) {
+    if (err) { throw err; }
+    b = result.replace(process.cwd(), '$CWD');
+    if (b && c) { test(); }
+});
+require('resolve')('buffer/', { preserveSymlinks: false }, function (err, result) {
+    if (err) { throw err; }
+    c = result.replace(process.cwd(), '$CWD');
+    if (b && c) { test(); }
+});
+
diff --git a/node_modules/resolve/test/resolver/nested_symlinks/mylib/package.json b/node_modules/resolve/test/resolver/nested_symlinks/mylib/package.json
new file mode 100644
index 0000000..acfe9e9
--- /dev/null
+++ b/node_modules/resolve/test/resolver/nested_symlinks/mylib/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "mylib",
+  "version": "0.0.0",
+  "description": "",
+  "private": true,
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "buffer": "*"
+  }
+}
diff --git a/node_modules/resolve/test/resolver/nested_symlinks/mylib/sync.js b/node_modules/resolve/test/resolver/nested_symlinks/mylib/sync.js
new file mode 100644
index 0000000..3283efc
--- /dev/null
+++ b/node_modules/resolve/test/resolver/nested_symlinks/mylib/sync.js
@@ -0,0 +1,12 @@
+var a = require.resolve('buffer/').replace(process.cwd(), '$CWD');
+var b = require('resolve').sync('buffer/', { preserveSymlinks: true }).replace(process.cwd(), '$CWD');
+var c = require('resolve').sync('buffer/', { preserveSymlinks: false }).replace(process.cwd(), '$CWD');
+
+console.log(a, ': require.resolve, preserveSymlinks ' + (process.execArgv.indexOf('preserve-symlinks') > -1 ? 'true' : 'false'));
+console.log(b, ': preserveSymlinks true');
+console.log(c, ': preserveSymlinks false');
+
+if (a !== b && a !== c) {
+    throw 'sync: no match';
+}
+console.log('sync: success! a matched either b or c\n');
diff --git a/node_modules/resolve/test/resolver/other_path/lib/other-lib.js b/node_modules/resolve/test/resolver/other_path/lib/other-lib.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/other_path/lib/other-lib.js
diff --git a/node_modules/resolve/test/resolver/other_path/root.js b/node_modules/resolve/test/resolver/other_path/root.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/other_path/root.js
diff --git a/node_modules/resolve/test/resolver/quux/foo/index.js b/node_modules/resolve/test/resolver/quux/foo/index.js
new file mode 100644
index 0000000..bd816ea
--- /dev/null
+++ b/node_modules/resolve/test/resolver/quux/foo/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/same_names/foo.js b/node_modules/resolve/test/resolver/same_names/foo.js
new file mode 100644
index 0000000..888cae3
--- /dev/null
+++ b/node_modules/resolve/test/resolver/same_names/foo.js
@@ -0,0 +1 @@
+module.exports = 42;
diff --git a/node_modules/resolve/test/resolver/same_names/foo/index.js b/node_modules/resolve/test/resolver/same_names/foo/index.js
new file mode 100644
index 0000000..bd816ea
--- /dev/null
+++ b/node_modules/resolve/test/resolver/same_names/foo/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/node_modules/resolve/test/resolver/symlinked/_/node_modules/foo.js b/node_modules/resolve/test/resolver/symlinked/_/node_modules/foo.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/symlinked/_/node_modules/foo.js
diff --git a/node_modules/resolve/test/resolver/symlinked/_/symlink_target/.gitkeep b/node_modules/resolve/test/resolver/symlinked/_/symlink_target/.gitkeep
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/resolver/symlinked/_/symlink_target/.gitkeep
diff --git a/node_modules/resolve/test/resolver/symlinked/package/bar.js b/node_modules/resolve/test/resolver/symlinked/package/bar.js
new file mode 100644
index 0000000..cb1c2c0
--- /dev/null
+++ b/node_modules/resolve/test/resolver/symlinked/package/bar.js
@@ -0,0 +1 @@
+module.exports = 'bar';
diff --git a/node_modules/resolve/test/resolver/symlinked/package/package.json b/node_modules/resolve/test/resolver/symlinked/package/package.json
new file mode 100644
index 0000000..8e1b585
--- /dev/null
+++ b/node_modules/resolve/test/resolver/symlinked/package/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "bar.js"
+}
\ No newline at end of file
diff --git a/node_modules/resolve/test/resolver/without_basedir/main.js b/node_modules/resolve/test/resolver/without_basedir/main.js
new file mode 100644
index 0000000..5b31975
--- /dev/null
+++ b/node_modules/resolve/test/resolver/without_basedir/main.js
@@ -0,0 +1,5 @@
+var resolve = require('../../../');
+
+module.exports = function (t, cb) {
+    resolve('mymodule', null, cb);
+};
diff --git a/node_modules/resolve/test/resolver_sync.js b/node_modules/resolve/test/resolver_sync.js
new file mode 100644
index 0000000..3082c96
--- /dev/null
+++ b/node_modules/resolve/test/resolver_sync.js
@@ -0,0 +1,358 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('foo', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./foo', { basedir: dir }),
+        path.join(dir, 'foo.js')
+    );
+
+    t.equal(
+        resolve.sync('./foo.js', { basedir: dir }),
+        path.join(dir, 'foo.js')
+    );
+
+    t.equal(
+        resolve.sync('./foo.js', { basedir: dir, filename: path.join(dir, 'bar.js') }),
+        path.join(dir, 'foo.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('foo', { basedir: dir });
+    });
+
+    // Test that filename is reported as the "from" value when passed.
+    t.throws(
+        function () {
+            resolve.sync('foo', { basedir: dir, filename: path.join(dir, 'bar.js') });
+        },
+        {
+            name: 'Error',
+            message: "Cannot find module 'foo' from '" + path.join(dir, 'bar.js') + "'"
+        }
+    );
+
+    t.end();
+});
+
+test('bar', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('foo', { basedir: path.join(dir, 'bar') }),
+        path.join(dir, 'bar/node_modules/foo/index.js')
+    );
+    t.end();
+});
+
+test('baz', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./baz', { basedir: dir }),
+        path.join(dir, 'baz/quux.js')
+    );
+    t.end();
+});
+
+test('biz', function (t) {
+    var dir = path.join(__dirname, 'resolver/biz/node_modules');
+    t.equal(
+        resolve.sync('./grux', { basedir: dir }),
+        path.join(dir, 'grux/index.js')
+    );
+
+    t.equal(
+        resolve.sync('tiv', { basedir: path.join(dir, 'grux') }),
+        path.join(dir, 'tiv/index.js')
+    );
+
+    t.equal(
+        resolve.sync('grux', { basedir: path.join(dir, 'tiv') }),
+        path.join(dir, 'grux/index.js')
+    );
+    t.end();
+});
+
+test('normalize', function (t) {
+    var dir = path.join(__dirname, 'resolver/biz/node_modules/grux');
+    t.equal(
+        resolve.sync('../grux', { basedir: dir }),
+        path.join(dir, 'index.js')
+    );
+    t.end();
+});
+
+test('cup', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    t.equal(
+        resolve.sync('./cup', {
+            basedir: dir,
+            extensions: ['.js', '.coffee']
+        }),
+        path.join(dir, 'cup.coffee')
+    );
+
+    t.equal(
+        resolve.sync('./cup.coffee', { basedir: dir }),
+        path.join(dir, 'cup.coffee')
+    );
+
+    t.throws(function () {
+        resolve.sync('./cup', {
+            basedir: dir,
+            extensions: ['.js']
+        });
+    });
+
+    t.end();
+});
+
+test('mug', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    t.equal(
+        resolve.sync('./mug', { basedir: dir }),
+        path.join(dir, 'mug.js')
+    );
+
+    t.equal(
+        resolve.sync('./mug', {
+            basedir: dir,
+            extensions: ['.coffee', '.js']
+        }),
+        path.join(dir, 'mug.coffee')
+    );
+
+    t.equal(
+        resolve.sync('./mug', {
+            basedir: dir,
+            extensions: ['.js', '.coffee']
+        }),
+        path.join(dir, 'mug.js')
+    );
+
+    t.end();
+});
+
+test('other path', function (t) {
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'bar');
+    var otherDir = path.join(resolverDir, 'other_path');
+
+    t.equal(
+        resolve.sync('root', {
+            basedir: dir,
+            paths: [otherDir]
+        }),
+        path.join(resolverDir, 'other_path/root.js')
+    );
+
+    t.equal(
+        resolve.sync('lib/other-lib', {
+            basedir: dir,
+            paths: [otherDir]
+        }),
+        path.join(resolverDir, 'other_path/lib/other-lib.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('root', { basedir: dir });
+    });
+
+    t.throws(function () {
+        resolve.sync('zzz', {
+            basedir: dir,
+            paths: [otherDir]
+        });
+    });
+
+    t.end();
+});
+
+test('path iterator', function (t) {
+    var resolverDir = path.join(__dirname, 'resolver');
+
+    var exactIterator = function (x, start, getPackageCandidates, opts) {
+        return [path.join(resolverDir, x)];
+    };
+
+    t.equal(
+        resolve.sync('baz', { packageIterator: exactIterator }),
+        path.join(resolverDir, 'baz/quux.js')
+    );
+
+    t.end();
+});
+
+test('incorrect main', function (t) {
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'incorrect_main');
+
+    t.equal(
+        resolve.sync('./incorrect_main', { basedir: resolverDir }),
+        path.join(dir, 'index.js')
+    );
+
+    t.end();
+});
+
+var stubStatSync = function stubStatSync(fn) {
+    var fs = require('fs');
+    var statSync = fs.statSync;
+    try {
+        fs.statSync = function () {
+            throw new EvalError('Unknown Error');
+        };
+        return fn();
+    } finally {
+        fs.statSync = statSync;
+    }
+};
+
+test('#79 - re-throw non ENOENT errors from stat', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    stubStatSync(function () {
+        t.throws(function () {
+            resolve.sync('foo', { basedir: dir });
+        }, /Unknown Error/);
+    });
+
+    t.end();
+});
+
+test('#52 - incorrectly resolves module-paths like "./someFolder/" when there is a file of the same name', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./foo', { basedir: path.join(dir, 'same_names') }),
+        path.join(dir, 'same_names/foo.js')
+    );
+    t.equal(
+        resolve.sync('./foo/', { basedir: path.join(dir, 'same_names') }),
+        path.join(dir, 'same_names/foo/index.js')
+    );
+    t.end();
+});
+
+test('#211 - incorrectly resolves module-paths like "." when from inside a folder with a sibling file of the same name', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./', { basedir: path.join(dir, 'same_names/foo') }),
+        path.join(dir, 'same_names/foo/index.js')
+    );
+    t.equal(
+        resolve.sync('.', { basedir: path.join(dir, 'same_names/foo') }),
+        path.join(dir, 'same_names/foo/index.js')
+    );
+    t.end();
+});
+
+test('sync: #121 - treating an existing file as a dir when no basedir', function (t) {
+    var testFile = path.basename(__filename);
+
+    t.test('sanity check', function (st) {
+        st.equal(
+            resolve.sync('./' + testFile),
+            __filename,
+            'sanity check'
+        );
+        st.end();
+    });
+
+    t.test('with a fake directory', function (st) {
+        function run() { return resolve.sync('./' + testFile + '/blah'); }
+
+        st.throws(run, 'throws an error');
+
+        try {
+            run();
+        } catch (e) {
+            st.equal(e.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+            st.equal(
+                e.message,
+                'Cannot find module \'./' + testFile + '/blah\' from \'' + __dirname + '\'',
+                'can not find nonexistent module'
+            );
+        }
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('sync dot main', function (t) {
+    var start = new Date();
+    t.equal(resolve.sync('./resolver/dot_main'), path.join(__dirname, 'resolver/dot_main/index.js'));
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('sync dot slash main', function (t) {
+    var start = new Date();
+    t.equal(resolve.sync('./resolver/dot_slash_main'), path.join(__dirname, 'resolver/dot_slash_main/index.js'));
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('not a directory', function (t) {
+    var path = './foo';
+    try {
+        resolve.sync(path, { basedir: __filename });
+        t.fail();
+    } catch (err) {
+        t.ok(err, 'a non-directory errors');
+        t.equal(err && err.message, 'Cannot find module \'' + path + "' from '" + __filename + "'");
+        t.equal(err && err.code, 'MODULE_NOT_FOUND');
+    }
+    t.end();
+});
+
+test('non-string "main" field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    try {
+        var result = resolve.sync('./invalid_main', { basedir: dir });
+        t.equal(result, undefined, 'result should not exist');
+        t.fail('should not get here');
+    } catch (err) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+    }
+    t.end();
+});
+
+test('non-string "main" field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    try {
+        var result = resolve.sync('./invalid_main', { basedir: dir });
+        t.equal(result, undefined, 'result should not exist');
+        t.fail('should not get here');
+    } catch (err) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+    }
+    t.end();
+});
+
+test('browser field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    var res = resolve.sync('./browser_field', {
+        basedir: dir,
+        packageFilter: function packageFilter(pkg) {
+            if (pkg.browser) {
+                pkg.main = pkg.browser; // eslint-disable-line no-param-reassign
+                delete pkg.browser; // eslint-disable-line no-param-reassign
+            }
+            return pkg;
+        }
+    });
+    t.equal(res, path.join(dir, 'browser_field', 'b.js'));
+    t.end();
+});
diff --git a/node_modules/resolve/test/shadowed_core.js b/node_modules/resolve/test/shadowed_core.js
new file mode 100644
index 0000000..3a5f4fc
--- /dev/null
+++ b/node_modules/resolve/test/shadowed_core.js
@@ -0,0 +1,54 @@
+var test = require('tape');
+var resolve = require('../');
+var path = require('path');
+
+test('shadowed core modules still return core module', function (t) {
+    t.plan(2);
+
+    resolve('util', { basedir: path.join(__dirname, 'shadowed_core') }, function (err, res) {
+        t.ifError(err);
+        t.equal(res, 'util');
+    });
+});
+
+test('shadowed core modules still return core module [sync]', function (t) {
+    t.plan(1);
+
+    var res = resolve.sync('util', { basedir: path.join(__dirname, 'shadowed_core') });
+
+    t.equal(res, 'util');
+});
+
+test('shadowed core modules return shadow when appending `/`', function (t) {
+    t.plan(2);
+
+    resolve('util/', { basedir: path.join(__dirname, 'shadowed_core') }, function (err, res) {
+        t.ifError(err);
+        t.equal(res, path.join(__dirname, 'shadowed_core/node_modules/util/index.js'));
+    });
+});
+
+test('shadowed core modules return shadow when appending `/` [sync]', function (t) {
+    t.plan(1);
+
+    var res = resolve.sync('util/', { basedir: path.join(__dirname, 'shadowed_core') });
+
+    t.equal(res, path.join(__dirname, 'shadowed_core/node_modules/util/index.js'));
+});
+
+test('shadowed core modules return shadow with `includeCoreModules: false`', function (t) {
+    t.plan(2);
+
+    resolve('util', { basedir: path.join(__dirname, 'shadowed_core'), includeCoreModules: false }, function (err, res) {
+        t.ifError(err);
+        t.equal(res, path.join(__dirname, 'shadowed_core/node_modules/util/index.js'));
+    });
+});
+
+test('shadowed core modules return shadow with `includeCoreModules: false` [sync]', function (t) {
+    t.plan(1);
+
+    var res = resolve.sync('util', { basedir: path.join(__dirname, 'shadowed_core'), includeCoreModules: false });
+
+    t.equal(res, path.join(__dirname, 'shadowed_core/node_modules/util/index.js'));
+});
diff --git a/node_modules/resolve/test/shadowed_core/node_modules/util/index.js b/node_modules/resolve/test/shadowed_core/node_modules/util/index.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/resolve/test/shadowed_core/node_modules/util/index.js
diff --git a/node_modules/resolve/test/subdirs.js b/node_modules/resolve/test/subdirs.js
new file mode 100644
index 0000000..b7b8450
--- /dev/null
+++ b/node_modules/resolve/test/subdirs.js
@@ -0,0 +1,13 @@
+var test = require('tape');
+var resolve = require('../');
+var path = require('path');
+
+test('subdirs', function (t) {
+    t.plan(2);
+
+    var dir = path.join(__dirname, '/subdirs');
+    resolve('a/b/c/x.json', { basedir: dir }, function (err, res) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, 'node_modules/a/b/c/x.json'));
+    });
+});
diff --git a/node_modules/resolve/test/symlinks.js b/node_modules/resolve/test/symlinks.js
new file mode 100644
index 0000000..35f881a
--- /dev/null
+++ b/node_modules/resolve/test/symlinks.js
@@ -0,0 +1,176 @@
+var path = require('path');
+var fs = require('fs');
+var test = require('tape');
+var map = require('array.prototype.map');
+var resolve = require('../');
+
+var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink');
+var packageDir = path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'package');
+var modADir = path.join(__dirname, 'symlinks', 'source', 'node_modules', 'mod-a');
+var symlinkModADir = path.join(__dirname, 'symlinks', 'dest', 'node_modules', 'mod-a');
+try {
+    fs.unlinkSync(symlinkDir);
+} catch (err) {}
+try {
+    fs.unlinkSync(packageDir);
+} catch (err) {}
+try {
+    fs.unlinkSync(modADir);
+} catch (err) {}
+try {
+    fs.unlinkSync(symlinkModADir);
+} catch (err) {}
+
+try {
+    fs.symlinkSync('./_/symlink_target', symlinkDir, 'dir');
+} catch (err) {
+    // if fails then it is probably on Windows and lets try to create a junction
+    fs.symlinkSync(path.join(__dirname, 'resolver', 'symlinked', '_', 'symlink_target') + '\\', symlinkDir, 'junction');
+}
+try {
+    fs.symlinkSync('../../package', packageDir, 'dir');
+} catch (err) {
+    // if fails then it is probably on Windows and lets try to create a junction
+    fs.symlinkSync(path.join(__dirname, '..', '..', 'package') + '\\', packageDir, 'junction');
+}
+try {
+    fs.symlinkSync('../../source/node_modules/mod-a', symlinkModADir, 'dir');
+} catch (err) {
+    // if fails then it is probably on Windows and lets try to create a junction
+    fs.symlinkSync(path.join(__dirname, '..', '..', 'source', 'node_modules', 'mod-a') + '\\', symlinkModADir, 'junction');
+}
+
+test('symlink', function (t) {
+    t.plan(2);
+
+    resolve('foo', { basedir: symlinkDir, preserveSymlinks: false }, function (err, res, pkg) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
+    });
+});
+
+test('sync symlink when preserveSymlinks = true', function (t) {
+    t.plan(4);
+
+    resolve('foo', { basedir: symlinkDir }, function (err, res, pkg) {
+        t.ok(err, 'there is an error');
+        t.notOk(res, 'no result');
+
+        t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+        t.equal(
+            err && err.message,
+            'Cannot find module \'foo\' from \'' + symlinkDir + '\'',
+            'can not find nonexistent module'
+        );
+    });
+});
+
+test('sync symlink', function (t) {
+    var start = new Date();
+    t.doesNotThrow(function () {
+        t.equal(
+            resolve.sync('foo', { basedir: symlinkDir, preserveSymlinks: false }),
+            path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js')
+        );
+    });
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('sync symlink when preserveSymlinks = true', function (t) {
+    t.throws(function () {
+        resolve.sync('foo', { basedir: symlinkDir });
+    }, /Cannot find module 'foo'/);
+    t.end();
+});
+
+test('sync symlink from node_modules to other dir when preserveSymlinks = false', function (t) {
+    var basedir = path.join(__dirname, 'resolver', 'symlinked', '_');
+    var fn = resolve.sync('package', { basedir: basedir, preserveSymlinks: false });
+
+    t.equal(fn, path.resolve(__dirname, 'resolver/symlinked/package/bar.js'));
+    t.end();
+});
+
+test('async symlink from node_modules to other dir when preserveSymlinks = false', function (t) {
+    t.plan(2);
+    var basedir = path.join(__dirname, 'resolver', 'symlinked', '_');
+    resolve('package', { basedir: basedir, preserveSymlinks: false }, function (err, result) {
+        t.notOk(err, 'no error');
+        t.equal(result, path.resolve(__dirname, 'resolver/symlinked/package/bar.js'));
+    });
+});
+
+test('packageFilter', function (t) {
+    function relative(x) {
+        return path.relative(__dirname, x);
+    }
+
+    function testPackageFilter(preserveSymlinks) {
+        return function (st) {
+            st.plan('is 1.x' ? 3 : 5); // eslint-disable-line no-constant-condition
+
+            var destMain = 'symlinks/dest/node_modules/mod-a/index.js';
+            var destPkg = 'symlinks/dest/node_modules/mod-a/package.json';
+            var sourceMain = 'symlinks/source/node_modules/mod-a/index.js';
+            var sourcePkg = 'symlinks/source/node_modules/mod-a/package.json';
+            var destDir = path.join(__dirname, 'symlinks', 'dest');
+
+            /* eslint multiline-comment-style: 0 */
+            /* v2.x will restore these tests
+            var packageFilterPath = [];
+            var actualPath = resolve.sync('mod-a', {
+                basedir: destDir,
+                preserveSymlinks: preserveSymlinks,
+                packageFilter: function (pkg, pkgfile, dir) {
+                    packageFilterPath.push(pkgfile);
+                }
+            });
+            st.equal(
+                relative(actualPath),
+                path.normalize(preserveSymlinks ? destMain : sourceMain),
+                'sync: actual path is correct'
+            );
+            st.deepEqual(
+                map(packageFilterPath, relative),
+                map(preserveSymlinks ? [destPkg, destPkg] : [sourcePkg, sourcePkg], path.normalize),
+                'sync: packageFilter pkgfile arg is correct'
+            );
+            */
+
+            var asyncPackageFilterPath = [];
+            resolve(
+                'mod-a',
+                {
+                    basedir: destDir,
+                    preserveSymlinks: preserveSymlinks,
+                    packageFilter: function (pkg, pkgfile) {
+                        asyncPackageFilterPath.push(pkgfile);
+                    }
+                },
+                function (err, actualPath) {
+                    st.error(err, 'no error');
+                    st.equal(
+                        relative(actualPath),
+                        path.normalize(preserveSymlinks ? destMain : sourceMain),
+                        'async: actual path is correct'
+                    );
+                    st.deepEqual(
+                        map(asyncPackageFilterPath, relative),
+                        map(
+                            preserveSymlinks ? [destPkg, destPkg, destPkg] : [sourcePkg, sourcePkg, sourcePkg],
+                            path.normalize
+                        ),
+                        'async: packageFilter pkgfile arg is correct'
+                    );
+                }
+            );
+        };
+    }
+
+    t.test('preserveSymlinks: false', testPackageFilter(false));
+
+    t.test('preserveSymlinks: true', testPackageFilter(true));
+
+    t.end();
+});