Demo for query storing

Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/through/test/auto-destroy.js b/node_modules/through/test/auto-destroy.js
new file mode 100644
index 0000000..9a8fd00
--- /dev/null
+++ b/node_modules/through/test/auto-destroy.js
@@ -0,0 +1,30 @@
+var test = require('tape')
+var through = require('../')
+
+// must emit end before close.
+
+test('end before close', function (assert) {
+  var ts = through()
+  ts.autoDestroy = false
+  var ended = false, closed = false
+
+  ts.on('end', function () {
+    assert.ok(!closed)
+    ended = true
+  })
+  ts.on('close', function () {
+    assert.ok(ended)
+    closed = true
+  })
+
+  ts.write(1)
+  ts.write(2)
+  ts.write(3)
+  ts.end()
+  assert.ok(ended)
+  assert.notOk(closed)
+  ts.destroy()
+  assert.ok(closed)
+  assert.end()
+})
+