зеркало из https://github.com/mozilla/gecko-dev.git
81 строка
2.0 KiB
JavaScript
81 строка
2.0 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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exports['test:add'] = function(test) {
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function Class() {}
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let fixture = require('sdk/util/registry').Registry(Class);
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let isAddEmitted = false;
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fixture.on('add', function(item) {
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test.assert(
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item instanceof Class,
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'if object added is not an instance should construct instance from it'
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);
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test.assert(
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fixture.has(item),
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'callback is called after instance is added'
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);
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test.assert(
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!isAddEmitted,
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'callback should be called for the same item only once'
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);
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isAddEmitted = true;
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});
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let object = fixture.add({});
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fixture.add(object);
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};
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exports['test:remove'] = function(test) {
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function Class() {}
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let fixture = require('sdk/util/registry').Registry(Class);
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fixture.on('remove', function(item) {
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test.assert(
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item instanceof Class,
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'if object removed can be only instance of Class'
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);
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test.assert(
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fixture.has(item),
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'callback is called before instance is removed'
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);
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test.assert(
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!isRemoveEmitted,
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'callback should be called for the same item only once'
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);
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isRemoveEmitted = true;
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});
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fixture.remove({});
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let object = fixture.add({});
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fixture.remove(object);
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fixture.remove(object);
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};
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exports['test:items'] = function(test) {
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function Class() {}
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let fixture = require('sdk/util/registry').Registry(Class),
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actual,
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times = 0;
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function testItem(item) {
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times ++;
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test.assertEqual(
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actual,
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item,
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'item should match actual item being added/removed'
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);
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}
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actual = fixture.add({});
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fixture.on('add', testItem);
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fixture.on('remove', testItem);
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fixture.remove(actual);
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fixture.remove(fixture.add(actual = new Class()));
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test.assertEqual(3, times, 'should notify listeners on each call');
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}
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