59 lines
2.2 KiB
JavaScript
59 lines
2.2 KiB
JavaScript
/*global mock */
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describe("The _converse Event Emitter", function() {
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it("allows you to subscribe to emitted events", mock.initConverse((_converse) => {
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window.callback = function () {};
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spyOn(window, 'callback');
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_converse.on('connected', window.callback);
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_converse.api.trigger('connected');
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expect(window.callback).toHaveBeenCalled();
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_converse.api.trigger('connected');
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expect(window.callback.calls.count(), 2);
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_converse.api.trigger('connected');
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expect(window.callback.calls.count(), 3);
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}));
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it("allows you to listen once for an emitted event", mock.initConverse((_converse) => {
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window.callback = function () {};
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spyOn(window, 'callback');
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_converse.once('connected', window.callback);
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_converse.api.trigger('connected');
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expect(window.callback).toHaveBeenCalled();
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_converse.api.trigger('connected');
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expect(window.callback.calls.count(), 1);
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_converse.api.trigger('connected');
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expect(window.callback.calls.count(), 1);
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}));
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it("allows you to stop listening or subscribing to an event", mock.initConverse((_converse) => {
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window.callback = function () {};
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window.anotherCallback = function () {};
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window.neverCalled = function () {};
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spyOn(window, 'callback');
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spyOn(window, 'anotherCallback');
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spyOn(window, 'neverCalled');
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_converse.on('connected', window.callback);
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_converse.on('connected', window.anotherCallback);
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_converse.api.trigger('connected');
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expect(window.callback).toHaveBeenCalled();
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expect(window.anotherCallback).toHaveBeenCalled();
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_converse.off('connected', window.callback);
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_converse.api.trigger('connected');
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expect(window.callback.calls.count(), 1);
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expect(window.anotherCallback.calls.count(), 2);
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_converse.once('connected', window.neverCalled);
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_converse.off('connected', window.neverCalled);
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_converse.api.trigger('connected');
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expect(window.callback.calls.count(), 1);
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expect(window.anotherCallback.calls.count(), 3);
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expect(window.neverCalled).not.toHaveBeenCalled();
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}));
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});
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