46 lines
1.7 KiB
JavaScript
46 lines
1.7 KiB
JavaScript
import domEventSourceOpenable from 'consul-ui/utils/dom/event-source/openable';
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import { module, test } from 'qunit';
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import sinon from 'sinon';
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module('Unit | Utility | dom/event-source/openable', function() {
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const createEventSource = function() {
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const EventSource = function(cb) {
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this.readyState = 1;
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this.source = cb;
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this.source.apply(this, arguments);
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};
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const o = EventSource.prototype;
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['addEventListener', 'removeEventListener', 'dispatchEvent', 'close'].forEach(function(item) {
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o[item] = function() {};
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});
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return EventSource;
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};
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test('it creates an Openable class implementing EventSource', function(assert) {
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const EventSource = createEventSource();
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const OpenableEventSource = domEventSourceOpenable(EventSource);
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assert.ok(OpenableEventSource instanceof Function);
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const source = new OpenableEventSource(function() {});
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assert.ok(source instanceof EventSource);
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});
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test('it reopens the event source when open is called', function(assert) {
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const callable = sinon.stub();
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const EventSource = createEventSource();
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const OpenableEventSource = domEventSourceOpenable(EventSource);
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const source = new OpenableEventSource(callable);
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assert.equal(source.readyState, 1);
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// first automatic EventSource `open`
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assert.ok(callable.calledOnce);
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source.readyState = 3;
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source.open();
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// still only called once as it hasn't completely closed yet
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// therefore is just opened by resetting the readyState
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assert.ok(callable.calledOnce);
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assert.equal(source.readyState, 1);
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// properly close the source
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source.readyState = 2;
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source.open();
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// this time it is opened via a recall of the callable
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assert.ok(callable.calledTwice);
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});
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});
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