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