+++ /dev/null
-(function() {
-
- QUnit.module('Backbone.Events');
-
- QUnit.test('on and trigger', function(assert) {
- assert.expect(2);
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
- obj.on('event', function() { obj.counter += 1; });
- obj.trigger('event');
- assert.equal(obj.counter, 1, 'counter should be incremented.');
- obj.trigger('event');
- obj.trigger('event');
- obj.trigger('event');
- obj.trigger('event');
- assert.equal(obj.counter, 5, 'counter should be incremented five times.');
- });
-
- QUnit.test('binding and triggering multiple events', function(assert) {
- assert.expect(4);
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
-
- obj.on('a b c', function() { obj.counter += 1; });
-
- obj.trigger('a');
- assert.equal(obj.counter, 1);
-
- obj.trigger('a b');
- assert.equal(obj.counter, 3);
-
- obj.trigger('c');
- assert.equal(obj.counter, 4);
-
- obj.off('a c');
- obj.trigger('a b c');
- assert.equal(obj.counter, 5);
- });
-
- QUnit.test('binding and triggering with event maps', function(assert) {
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
-
- var increment = function() {
- this.counter += 1;
- };
-
- obj.on({
- a: increment,
- b: increment,
- c: increment
- }, obj);
-
- obj.trigger('a');
- assert.equal(obj.counter, 1);
-
- obj.trigger('a b');
- assert.equal(obj.counter, 3);
-
- obj.trigger('c');
- assert.equal(obj.counter, 4);
-
- obj.off({
- a: increment,
- c: increment
- }, obj);
- obj.trigger('a b c');
- assert.equal(obj.counter, 5);
- });
-
- QUnit.test('binding and triggering multiple event names with event maps', function(assert) {
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
-
- var increment = function() {
- this.counter += 1;
- };
-
- obj.on({
- 'a b c': increment
- });
-
- obj.trigger('a');
- assert.equal(obj.counter, 1);
-
- obj.trigger('a b');
- assert.equal(obj.counter, 3);
-
- obj.trigger('c');
- assert.equal(obj.counter, 4);
-
- obj.off({
- 'a c': increment
- });
- obj.trigger('a b c');
- assert.equal(obj.counter, 5);
- });
-
- QUnit.test('binding and trigger with event maps context', function(assert) {
- assert.expect(2);
- var obj = {counter: 0};
- var context = {};
- _.extend(obj, Backbone.Events);
-
- obj.on({
- a: function() {
- assert.strictEqual(this, context, 'defaults `context` to `callback` param');
- }
- }, context).trigger('a');
-
- obj.off().on({
- a: function() {
- assert.strictEqual(this, context, 'will not override explicit `context` param');
- }
- }, this, context).trigger('a');
- });
-
- QUnit.test('listenTo and stopListening', function(assert) {
- assert.expect(1);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenTo(b, 'all', function(){ assert.ok(true); });
- b.trigger('anything');
- a.listenTo(b, 'all', function(){ assert.ok(false); });
- a.stopListening();
- b.trigger('anything');
- });
-
- QUnit.test('listenTo and stopListening with event maps', function(assert) {
- assert.expect(4);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- var cb = function(){ assert.ok(true); };
- a.listenTo(b, {event: cb});
- b.trigger('event');
- a.listenTo(b, {event2: cb});
- b.on('event2', cb);
- a.stopListening(b, {event2: cb});
- b.trigger('event event2');
- a.stopListening();
- b.trigger('event event2');
- });
-
- QUnit.test('stopListening with omitted args', function(assert) {
- assert.expect(2);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- var cb = function() { assert.ok(true); };
- a.listenTo(b, 'event', cb);
- b.on('event', cb);
- a.listenTo(b, 'event2', cb);
- a.stopListening(null, {event: cb});
- b.trigger('event event2');
- b.off();
- a.listenTo(b, 'event event2', cb);
- a.stopListening(null, 'event');
- a.stopListening();
- b.trigger('event2');
- });
-
- QUnit.test('listenToOnce', function(assert) {
- assert.expect(2);
- // Same as the previous test, but we use once rather than having to explicitly unbind
- var obj = {counterA: 0, counterB: 0};
- _.extend(obj, Backbone.Events);
- var incrA = function(){ obj.counterA += 1; obj.trigger('event'); };
- var incrB = function(){ obj.counterB += 1; };
- obj.listenToOnce(obj, 'event', incrA);
- obj.listenToOnce(obj, 'event', incrB);
- obj.trigger('event');
- assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
- assert.equal(obj.counterB, 1, 'counterB should have only been incremented once.');
- });
-
- QUnit.test('listenToOnce and stopListening', function(assert) {
- assert.expect(1);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenToOnce(b, 'all', function() { assert.ok(true); });
- b.trigger('anything');
- b.trigger('anything');
- a.listenToOnce(b, 'all', function() { assert.ok(false); });
- a.stopListening();
- b.trigger('anything');
- });
-
- QUnit.test('listenTo, listenToOnce and stopListening', function(assert) {
- assert.expect(1);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenToOnce(b, 'all', function() { assert.ok(true); });
- b.trigger('anything');
- b.trigger('anything');
- a.listenTo(b, 'all', function() { assert.ok(false); });
- a.stopListening();
- b.trigger('anything');
- });
-
- QUnit.test('listenTo and stopListening with event maps', function(assert) {
- assert.expect(1);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenTo(b, {change: function(){ assert.ok(true); }});
- b.trigger('change');
- a.listenTo(b, {change: function(){ assert.ok(false); }});
- a.stopListening();
- b.trigger('change');
- });
-
- QUnit.test('listenTo yourself', function(assert) {
- assert.expect(1);
- var e = _.extend({}, Backbone.Events);
- e.listenTo(e, 'foo', function(){ assert.ok(true); });
- e.trigger('foo');
- });
-
- QUnit.test('listenTo yourself cleans yourself up with stopListening', function(assert) {
- assert.expect(1);
- var e = _.extend({}, Backbone.Events);
- e.listenTo(e, 'foo', function(){ assert.ok(true); });
- e.trigger('foo');
- e.stopListening();
- e.trigger('foo');
- });
-
- QUnit.test('stopListening cleans up references', function(assert) {
- assert.expect(12);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- var fn = function() {};
- b.on('event', fn);
- a.listenTo(b, 'event', fn).stopListening();
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- a.listenTo(b, 'event', fn).stopListening(b);
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- a.listenTo(b, 'event', fn).stopListening(b, 'event');
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- a.listenTo(b, 'event', fn).stopListening(b, 'event', fn);
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- });
-
- QUnit.test('stopListening cleans up references from listenToOnce', function(assert) {
- assert.expect(12);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- var fn = function() {};
- b.on('event', fn);
- a.listenToOnce(b, 'event', fn).stopListening();
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- a.listenToOnce(b, 'event', fn).stopListening(b);
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- a.listenToOnce(b, 'event', fn).stopListening(b, 'event');
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- a.listenToOnce(b, 'event', fn).stopListening(b, 'event', fn);
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._events.event), 1);
- assert.equal(_.size(b._listeners), 0);
- });
-
- QUnit.test('listenTo and off cleaning up references', function(assert) {
- assert.expect(8);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- var fn = function() {};
- a.listenTo(b, 'event', fn);
- b.off();
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._listeners), 0);
- a.listenTo(b, 'event', fn);
- b.off('event');
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._listeners), 0);
- a.listenTo(b, 'event', fn);
- b.off(null, fn);
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._listeners), 0);
- a.listenTo(b, 'event', fn);
- b.off(null, null, a);
- assert.equal(_.size(a._listeningTo), 0);
- assert.equal(_.size(b._listeners), 0);
- });
-
- QUnit.test('listenTo and stopListening cleaning up references', function(assert) {
- assert.expect(2);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenTo(b, 'all', function(){ assert.ok(true); });
- b.trigger('anything');
- a.listenTo(b, 'other', function(){ assert.ok(false); });
- a.stopListening(b, 'other');
- a.stopListening(b, 'all');
- assert.equal(_.size(a._listeningTo), 0);
- });
-
- QUnit.test('listenToOnce without context cleans up references after the event has fired', function(assert) {
- assert.expect(2);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenToOnce(b, 'all', function(){ assert.ok(true); });
- b.trigger('anything');
- assert.equal(_.size(a._listeningTo), 0);
- });
-
- QUnit.test('listenToOnce with event maps cleans up references', function(assert) {
- assert.expect(2);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenToOnce(b, {
- one: function() { assert.ok(true); },
- two: function() { assert.ok(false); }
- });
- b.trigger('one');
- assert.equal(_.size(a._listeningTo), 1);
- });
-
- QUnit.test('listenToOnce with event maps binds the correct `this`', function(assert) {
- assert.expect(1);
- var a = _.extend({}, Backbone.Events);
- var b = _.extend({}, Backbone.Events);
- a.listenToOnce(b, {
- one: function() { assert.ok(this === a); },
- two: function() { assert.ok(false); }
- });
- b.trigger('one');
- });
-
- QUnit.test("listenTo with empty callback doesn't throw an error", function(assert) {
- assert.expect(1);
- var e = _.extend({}, Backbone.Events);
- e.listenTo(e, 'foo', null);
- e.trigger('foo');
- assert.ok(true);
- });
-
- QUnit.test('trigger all for each event', function(assert) {
- assert.expect(3);
- var a, b, obj = {counter: 0};
- _.extend(obj, Backbone.Events);
- obj.on('all', function(event) {
- obj.counter++;
- if (event === 'a') a = true;
- if (event === 'b') b = true;
- })
- .trigger('a b');
- assert.ok(a);
- assert.ok(b);
- assert.equal(obj.counter, 2);
- });
-
- QUnit.test('on, then unbind all functions', function(assert) {
- assert.expect(1);
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
- var callback = function() { obj.counter += 1; };
- obj.on('event', callback);
- obj.trigger('event');
- obj.off('event');
- obj.trigger('event');
- assert.equal(obj.counter, 1, 'counter should have only been incremented once.');
- });
-
- QUnit.test('bind two callbacks, unbind only one', function(assert) {
- assert.expect(2);
- var obj = {counterA: 0, counterB: 0};
- _.extend(obj, Backbone.Events);
- var callback = function() { obj.counterA += 1; };
- obj.on('event', callback);
- obj.on('event', function() { obj.counterB += 1; });
- obj.trigger('event');
- obj.off('event', callback);
- obj.trigger('event');
- assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
- assert.equal(obj.counterB, 2, 'counterB should have been incremented twice.');
- });
-
- QUnit.test('unbind a callback in the midst of it firing', function(assert) {
- assert.expect(1);
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
- var callback = function() {
- obj.counter += 1;
- obj.off('event', callback);
- };
- obj.on('event', callback);
- obj.trigger('event');
- obj.trigger('event');
- obj.trigger('event');
- assert.equal(obj.counter, 1, 'the callback should have been unbound.');
- });
-
- QUnit.test('two binds that unbind themeselves', function(assert) {
- assert.expect(2);
- var obj = {counterA: 0, counterB: 0};
- _.extend(obj, Backbone.Events);
- var incrA = function(){ obj.counterA += 1; obj.off('event', incrA); };
- var incrB = function(){ obj.counterB += 1; obj.off('event', incrB); };
- obj.on('event', incrA);
- obj.on('event', incrB);
- obj.trigger('event');
- obj.trigger('event');
- obj.trigger('event');
- assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
- assert.equal(obj.counterB, 1, 'counterB should have only been incremented once.');
- });
-
- QUnit.test('bind a callback with a default context when none supplied', function(assert) {
- assert.expect(1);
- var obj = _.extend({
- assertTrue: function() {
- assert.equal(this, obj, '`this` was bound to the callback');
- }
- }, Backbone.Events);
-
- obj.once('event', obj.assertTrue);
- obj.trigger('event');
- });
-
- QUnit.test('bind a callback with a supplied context', function(assert) {
- assert.expect(1);
- var TestClass = function() {
- return this;
- };
- TestClass.prototype.assertTrue = function() {
- assert.ok(true, '`this` was bound to the callback');
- };
-
- var obj = _.extend({}, Backbone.Events);
- obj.on('event', function() { this.assertTrue(); }, new TestClass);
- obj.trigger('event');
- });
-
- QUnit.test('nested trigger with unbind', function(assert) {
- assert.expect(1);
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
- var incr1 = function(){ obj.counter += 1; obj.off('event', incr1); obj.trigger('event'); };
- var incr2 = function(){ obj.counter += 1; };
- obj.on('event', incr1);
- obj.on('event', incr2);
- obj.trigger('event');
- assert.equal(obj.counter, 3, 'counter should have been incremented three times');
- });
-
- QUnit.test('callback list is not altered during trigger', function(assert) {
- assert.expect(2);
- var counter = 0, obj = _.extend({}, Backbone.Events);
- var incr = function(){ counter++; };
- var incrOn = function(){ obj.on('event all', incr); };
- var incrOff = function(){ obj.off('event all', incr); };
-
- obj.on('event all', incrOn).trigger('event');
- assert.equal(counter, 0, 'on does not alter callback list');
-
- obj.off().on('event', incrOff).on('event all', incr).trigger('event');
- assert.equal(counter, 2, 'off does not alter callback list');
- });
-
- QUnit.test("#1282 - 'all' callback list is retrieved after each event.", function(assert) {
- assert.expect(1);
- var counter = 0;
- var obj = _.extend({}, Backbone.Events);
- var incr = function(){ counter++; };
- obj.on('x', function() {
- obj.on('y', incr).on('all', incr);
- })
- .trigger('x y');
- assert.strictEqual(counter, 2);
- });
-
- QUnit.test('if no callback is provided, `on` is a noop', function(assert) {
- assert.expect(0);
- _.extend({}, Backbone.Events).on('test').trigger('test');
- });
-
- QUnit.test('if callback is truthy but not a function, `on` should throw an error just like jQuery', function(assert) {
- assert.expect(1);
- var view = _.extend({}, Backbone.Events).on('test', 'noop');
- assert.raises(function() {
- view.trigger('test');
- });
- });
-
- QUnit.test('remove all events for a specific context', function(assert) {
- assert.expect(4);
- var obj = _.extend({}, Backbone.Events);
- obj.on('x y all', function() { assert.ok(true); });
- obj.on('x y all', function() { assert.ok(false); }, obj);
- obj.off(null, null, obj);
- obj.trigger('x y');
- });
-
- QUnit.test('remove all events for a specific callback', function(assert) {
- assert.expect(4);
- var obj = _.extend({}, Backbone.Events);
- var success = function() { assert.ok(true); };
- var fail = function() { assert.ok(false); };
- obj.on('x y all', success);
- obj.on('x y all', fail);
- obj.off(null, fail);
- obj.trigger('x y');
- });
-
- QUnit.test('#1310 - off does not skip consecutive events', function(assert) {
- assert.expect(0);
- var obj = _.extend({}, Backbone.Events);
- obj.on('event', function() { assert.ok(false); }, obj);
- obj.on('event', function() { assert.ok(false); }, obj);
- obj.off(null, null, obj);
- obj.trigger('event');
- });
-
- QUnit.test('once', function(assert) {
- assert.expect(2);
- // Same as the previous test, but we use once rather than having to explicitly unbind
- var obj = {counterA: 0, counterB: 0};
- _.extend(obj, Backbone.Events);
- var incrA = function(){ obj.counterA += 1; obj.trigger('event'); };
- var incrB = function(){ obj.counterB += 1; };
- obj.once('event', incrA);
- obj.once('event', incrB);
- obj.trigger('event');
- assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
- assert.equal(obj.counterB, 1, 'counterB should have only been incremented once.');
- });
-
- QUnit.test('once variant one', function(assert) {
- assert.expect(3);
- var f = function(){ assert.ok(true); };
-
- var a = _.extend({}, Backbone.Events).once('event', f);
- var b = _.extend({}, Backbone.Events).on('event', f);
-
- a.trigger('event');
-
- b.trigger('event');
- b.trigger('event');
- });
-
- QUnit.test('once variant two', function(assert) {
- assert.expect(3);
- var f = function(){ assert.ok(true); };
- var obj = _.extend({}, Backbone.Events);
-
- obj
- .once('event', f)
- .on('event', f)
- .trigger('event')
- .trigger('event');
- });
-
- QUnit.test('once with off', function(assert) {
- assert.expect(0);
- var f = function(){ assert.ok(true); };
- var obj = _.extend({}, Backbone.Events);
-
- obj.once('event', f);
- obj.off('event', f);
- obj.trigger('event');
- });
-
- QUnit.test('once with event maps', function(assert) {
- var obj = {counter: 0};
- _.extend(obj, Backbone.Events);
-
- var increment = function() {
- this.counter += 1;
- };
-
- obj.once({
- a: increment,
- b: increment,
- c: increment
- }, obj);
-
- obj.trigger('a');
- assert.equal(obj.counter, 1);
-
- obj.trigger('a b');
- assert.equal(obj.counter, 2);
-
- obj.trigger('c');
- assert.equal(obj.counter, 3);
-
- obj.trigger('a b c');
- assert.equal(obj.counter, 3);
- });
-
- QUnit.test('bind a callback with a supplied context using once with object notation', function(assert) {
- assert.expect(1);
- var obj = {counter: 0};
- var context = {};
- _.extend(obj, Backbone.Events);
-
- obj.once({
- a: function() {
- assert.strictEqual(this, context, 'defaults `context` to `callback` param');
- }
- }, context).trigger('a');
- });
-
- QUnit.test('once with off only by context', function(assert) {
- assert.expect(0);
- var context = {};
- var obj = _.extend({}, Backbone.Events);
- obj.once('event', function(){ assert.ok(false); }, context);
- obj.off(null, null, context);
- obj.trigger('event');
- });
-
- QUnit.test('Backbone object inherits Events', function(assert) {
- assert.ok(Backbone.on === Backbone.Events.on);
- });
-
- QUnit.test('once with asynchronous events', function(assert) {
- var done = assert.async();
- assert.expect(1);
- var func = _.debounce(function() { assert.ok(true); done(); }, 50);
- var obj = _.extend({}, Backbone.Events).once('async', func);
-
- obj.trigger('async');
- obj.trigger('async');
- });
-
- QUnit.test('once with multiple events.', function(assert) {
- assert.expect(2);
- var obj = _.extend({}, Backbone.Events);
- obj.once('x y', function() { assert.ok(true); });
- obj.trigger('x y');
- });
-
- QUnit.test('Off during iteration with once.', function(assert) {
- assert.expect(2);
- var obj = _.extend({}, Backbone.Events);
- var f = function(){ this.off('event', f); };
- obj.on('event', f);
- obj.once('event', function(){});
- obj.on('event', function(){ assert.ok(true); });
-
- obj.trigger('event');
- obj.trigger('event');
- });
-
- QUnit.test('`once` on `all` should work as expected', function(assert) {
- assert.expect(1);
- Backbone.once('all', function() {
- assert.ok(true);
- Backbone.trigger('all');
- });
- Backbone.trigger('all');
- });
-
- QUnit.test('once without a callback is a noop', function(assert) {
- assert.expect(0);
- _.extend({}, Backbone.Events).once('event').trigger('event');
- });
-
- QUnit.test('listenToOnce without a callback is a noop', function(assert) {
- assert.expect(0);
- var obj = _.extend({}, Backbone.Events);
- obj.listenToOnce(obj, 'event').trigger('event');
- });
-
- QUnit.test('event functions are chainable', function(assert) {
- var obj = _.extend({}, Backbone.Events);
- var obj2 = _.extend({}, Backbone.Events);
- var fn = function() {};
- assert.equal(obj, obj.trigger('noeventssetyet'));
- assert.equal(obj, obj.off('noeventssetyet'));
- assert.equal(obj, obj.stopListening('noeventssetyet'));
- assert.equal(obj, obj.on('a', fn));
- assert.equal(obj, obj.once('c', fn));
- assert.equal(obj, obj.trigger('a'));
- assert.equal(obj, obj.listenTo(obj2, 'a', fn));
- assert.equal(obj, obj.listenToOnce(obj2, 'b', fn));
- assert.equal(obj, obj.off('a c'));
- assert.equal(obj, obj.stopListening(obj2, 'a'));
- assert.equal(obj, obj.stopListening());
- });
-
- QUnit.test('#3448 - listenToOnce with space-separated events', function(assert) {
- assert.expect(2);
- var one = _.extend({}, Backbone.Events);
- var two = _.extend({}, Backbone.Events);
- var count = 1;
- one.listenToOnce(two, 'x y', function(n) { assert.ok(n === count++); });
- two.trigger('x', 1);
- two.trigger('x', 1);
- two.trigger('y', 2);
- two.trigger('y', 2);
- });
-
-})();
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