blob: b9d27c53efe8ee7301b0e68baed1cca81970f91e [file] [log] [blame]
Leo Repp58b9f112021-11-22 11:57:47 +01001'use strict';
2
3var test = require('tape');
4var isDate = require('../');
5var hasSymbols = typeof Symbol === 'function' && typeof Symbol('') === 'symbol';
6
7test('not Dates', function (t) {
8 t.notOk(isDate(), 'undefined is not Date');
9 t.notOk(isDate(null), 'null is not Date');
10 t.notOk(isDate(false), 'false is not Date');
11 t.notOk(isDate(true), 'true is not Date');
12 t.notOk(isDate(42), 'number is not Date');
13 t.notOk(isDate('foo'), 'string is not Date');
14 t.notOk(isDate([]), 'array is not Date');
15 t.notOk(isDate({}), 'object is not Date');
16 t.notOk(isDate(function () {}), 'function is not Date');
17 t.notOk(isDate(/a/g), 'regex literal is not Date');
18 t.notOk(isDate(new RegExp('a', 'g')), 'regex object is not Date');
19 t.end();
20});
21
22test('@@toStringTag', { skip: !hasSymbols || !Symbol.toStringTag }, function (t) {
23 var realDate = new Date();
24 var fakeDate = {
25 toString: function () { return String(realDate); },
26 valueOf: function () { return realDate.getTime(); }
27 };
28 fakeDate[Symbol.toStringTag] = 'Date';
29 t.notOk(isDate(fakeDate), 'fake Date with @@toStringTag "Date" is not Date');
30 t.end();
31});
32
33test('Dates', function (t) {
34 t.ok(isDate(new Date()), 'new Date() is Date');
35 t.end();
36});