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authorFlorian Dold <florian.dold@gmail.com>2017-05-03 15:35:00 +0200
committerFlorian Dold <florian.dold@gmail.com>2017-05-03 15:35:00 +0200
commitde98e0b232509d5f40c135d540a70e415272ff85 (patch)
treea79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/events/tests/once.js
parente0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff)
node_modules
Diffstat (limited to 'node_modules/events/tests/once.js')
-rw-r--r--node_modules/events/tests/once.js59
1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/events/tests/once.js b/node_modules/events/tests/once.js
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+++ b/node_modules/events/tests/once.js
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+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var assert = require('assert');
+var events = require('../');
+
+var e = new events.EventEmitter();
+var times_hello_emited = 0;
+
+e.once('hello', function(a, b) {
+ times_hello_emited++;
+});
+
+e.emit('hello', 'a', 'b');
+e.emit('hello', 'a', 'b');
+e.emit('hello', 'a', 'b');
+e.emit('hello', 'a', 'b');
+
+var remove = function() {
+ assert.fail(1, 0, 'once->foo should not be emitted', '!');
+};
+
+e.once('foo', remove);
+e.removeListener('foo', remove);
+e.emit('foo');
+
+var times_recurse_emitted = 0;
+
+e.once('e', function() {
+ e.emit('e');
+ times_recurse_emitted++;
+});
+
+e.once('e', function() {
+ times_recurse_emitted++;
+});
+
+e.emit('e');
+
+assert.equal(1, times_hello_emited);
+assert.equal(2, times_recurse_emitted);