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| 'use strict';
|
| module.exports = function (t, a) {
| var x = t(), y, count, count2, count3, count4, test, listener1, listener2;
|
| x.emit('none');
|
| test = "Once: ";
| count = 0;
| x.once('foo', function (a1, a2, a3) {
| a(this, x, test + "Context");
| a.deep([a1, a2, a3], ['foo', x, 15], test + "Arguments");
| ++count;
| });
|
| x.emit('foobar');
| a(count, 0, test + "Not invoked on other event");
| x.emit('foo', 'foo', x, 15);
| a(count, 1, test + "Emitted");
| x.emit('foo');
| a(count, 1, test + "Emitted once");
|
| test = "On & Once: ";
| count = 0;
| x.on('foo', listener1 = function (a1, a2, a3) {
| a(this, x, test + "Context");
| a.deep([a1, a2, a3], ['foo', x, 15], test + "Arguments");
| ++count;
| });
| count2 = 0;
| x.once('foo', listener2 = function (a1, a2, a3) {
| a(this, x, test + "Context");
| a.deep([a1, a2, a3], ['foo', x, 15], test + "Arguments");
| ++count2;
| });
|
| x.emit('foobar');
| a(count, 0, test + "Not invoked on other event");
| x.emit('foo', 'foo', x, 15);
| a(count, 1, test + "Emitted");
| x.emit('foo', 'foo', x, 15);
| a(count, 2, test + "Emitted twice");
| a(count2, 1, test + "Emitted once");
| x.off('foo', listener1);
| x.emit('foo');
| a(count, 2, test + "Not emitter after off");
|
| count = 0;
| x.once('foo', listener1 = function () { ++count; });
|
| x.off('foo', listener1);
| x.emit('foo');
| a(count, 0, "Once Off: Not emitted");
|
| count = 0;
| x.on('foo', listener2 = function () {});
| x.once('foo', listener1 = function () { ++count; });
|
| x.off('foo', listener1);
| x.emit('foo');
| a(count, 0, "Once Off (multi): Not emitted");
| x.off('foo', listener2);
|
| test = "Prototype Share: ";
|
| y = Object.create(x);
|
| count = 0;
| count2 = 0;
| count3 = 0;
| count4 = 0;
| x.on('foo', function () {
| ++count;
| });
| y.on('foo', function () {
| ++count2;
| });
| x.once('foo', function () {
| ++count3;
| });
| y.once('foo', function () {
| ++count4;
| });
| x.emit('foo');
| a(count, 1, test + "x on count");
| a(count2, 0, test + "y on count");
| a(count3, 1, test + "x once count");
| a(count4, 0, test + "y once count");
|
| y.emit('foo');
| a(count, 1, test + "x on count");
| a(count2, 1, test + "y on count");
| a(count3, 1, test + "x once count");
| a(count4, 1, test + "y once count");
|
| x.emit('foo');
| a(count, 2, test + "x on count");
| a(count2, 1, test + "y on count");
| a(count3, 1, test + "x once count");
| a(count4, 1, test + "y once count");
|
| y.emit('foo');
| a(count, 2, test + "x on count");
| a(count2, 2, test + "y on count");
| a(count3, 1, test + "x once count");
| a(count4, 1, test + "y once count");
| };
|
|
