| // Copyright 2008 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| goog.provide('goog.ui.registryTest'); |
| goog.setTestOnly('goog.ui.registryTest'); |
| |
| goog.require('goog.object'); |
| goog.require('goog.testing.jsunit'); |
| goog.require('goog.ui.registry'); |
| |
| // Fake component and renderer implementations, for testing only. |
| |
| // UnknownComponent has no default renderer or decorator registered. |
| function UnknownComponent() { |
| } |
| |
| // FakeComponentX's default renderer is FakeRenderer. It also has a |
| // decorator. |
| function FakeComponentX() { |
| this.element = null; |
| } |
| |
| FakeComponentX.prototype.decorate = function(element) { |
| this.element = element; |
| }; |
| |
| // FakeComponentY doesn't have an explicitly registered default |
| // renderer; it should inherit the default renderer from its superclass. |
| // It does have a decorator registered. |
| function FakeComponentY() { |
| FakeComponentX.call(this); |
| } |
| goog.inherits(FakeComponentY, FakeComponentX); |
| |
| // FakeComponentZ is just another component. Its default renderer is |
| // FakeSingletonRenderer, but it has no decorator registered. |
| function FakeComponentZ() { |
| } |
| |
| // FakeRenderer is a stateful renderer. |
| function FakeRenderer() { |
| } |
| |
| // FakeSingletonRenderer is a stateless renderer that can be used as a |
| // singleton. |
| function FakeSingletonRenderer() { |
| } |
| |
| FakeSingletonRenderer.instance_ = new FakeSingletonRenderer(); |
| |
| FakeSingletonRenderer.getInstance = function() { |
| return FakeSingletonRenderer.instance_; |
| }; |
| |
| function setUp() { |
| goog.ui.registry.setDefaultRenderer(FakeComponentX, FakeRenderer); |
| goog.ui.registry.setDefaultRenderer(FakeComponentZ, |
| FakeSingletonRenderer); |
| |
| goog.ui.registry.setDecoratorByClassName('fake-component-x', |
| function() { |
| return new FakeComponentX(); |
| }); |
| goog.ui.registry.setDecoratorByClassName('fake-component-y', |
| function() { |
| return new FakeComponentY(); |
| }); |
| } |
| |
| function tearDown() { |
| goog.ui.registry.reset(); |
| } |
| |
| function testGetDefaultRenderer() { |
| var rx1 = goog.ui.registry.getDefaultRenderer(FakeComponentX); |
| var rx2 = goog.ui.registry.getDefaultRenderer(FakeComponentX); |
| assertTrue('FakeComponentX\'s default renderer must be a FakeRenderer', |
| rx1 instanceof FakeRenderer); |
| assertNotEquals('Each call to getDefaultRenderer must create a new ' + |
| 'FakeRenderer', rx1, rx2); |
| |
| var ry = goog.ui.registry.getDefaultRenderer(FakeComponentY); |
| assertTrue('FakeComponentY must inherit its default renderer from ' + |
| 'its superclass', ry instanceof FakeRenderer); |
| |
| var rz1 = goog.ui.registry.getDefaultRenderer(FakeComponentZ); |
| var rz2 = goog.ui.registry.getDefaultRenderer(FakeComponentZ); |
| assertTrue('FakeComponentZ\' default renderer must be a ' + |
| 'FakeSingletonRenderer', rz1 instanceof FakeSingletonRenderer); |
| assertEquals('Each call to getDefaultRenderer must return the ' + |
| 'singleton instance of FakeSingletonRenderer', rz1, rz2); |
| |
| assertNull('getDefaultRenderer must return null for unknown component', |
| goog.ui.registry.getDefaultRenderer(UnknownComponent)); |
| } |
| |
| function testSetDefaultRenderer() { |
| var rx1 = goog.ui.registry.getDefaultRenderer(FakeComponentX); |
| assertTrue('FakeComponentX\'s renderer must be FakeRenderer', |
| rx1 instanceof FakeRenderer); |
| |
| var ry1 = goog.ui.registry.getDefaultRenderer(FakeComponentY); |
| assertTrue('FakeComponentY must inherit its default renderer from ' + |
| 'its superclass', ry1 instanceof FakeRenderer); |
| |
| goog.ui.registry.setDefaultRenderer(FakeComponentX, |
| FakeSingletonRenderer); |
| |
| var rx2 = goog.ui.registry.getDefaultRenderer(FakeComponentX); |
| assertEquals('FakeComponentX\'s renderer must be FakeSingletonRenderer', |
| FakeSingletonRenderer.getInstance(), rx2); |
| |
| var ry2 = goog.ui.registry.getDefaultRenderer(FakeComponentY); |
| assertEquals('FakeComponentY must inherit the new default renderer ' + |
| 'from its superclass', FakeSingletonRenderer.getInstance(), ry2); |
| |
| goog.ui.registry.setDefaultRenderer(FakeComponentY, FakeRenderer); |
| |
| var rx3 = goog.ui.registry.getDefaultRenderer(FakeComponentX); |
| assertEquals('FakeComponentX\'s renderer must be unchanged', |
| FakeSingletonRenderer.getInstance(), rx3); |
| |
| var ry3 = goog.ui.registry.getDefaultRenderer(FakeComponentY); |
| assertTrue('FakeComponentY must now have its own default renderer', |
| ry3 instanceof FakeRenderer); |
| |
| assertThrows('Calling setDefaultRenderer with non-function component ' + |
| 'must throw error', |
| function() { |
| goog.ui.registry.setDefaultRenderer('Not function', FakeRenderer); |
| }); |
| |
| assertThrows('Calling setDefaultRenderer with non-function renderer ' + |
| 'must throw error', |
| function() { |
| goog.ui.registry.setDefaultRenderer(FakeComponentX, 'Not function'); |
| }); |
| } |
| |
| function testGetDecoratorByClassName() { |
| var dx1 = goog.ui.registry.getDecoratorByClassName('fake-component-x'); |
| var dx2 = goog.ui.registry.getDecoratorByClassName('fake-component-x'); |
| assertTrue('fake-component-x must be decorated by a FakeComponentX', |
| dx1 instanceof FakeComponentX); |
| assertNotEquals('Each call to getDecoratorByClassName must return a ' + |
| 'new FakeComponentX instance', dx1, dx2); |
| |
| var dy1 = goog.ui.registry.getDecoratorByClassName('fake-component-y'); |
| var dy2 = goog.ui.registry.getDecoratorByClassName('fake-component-y'); |
| assertTrue('fake-component-y must be decorated by a FakeComponentY', |
| dy1 instanceof FakeComponentY); |
| assertNotEquals('Each call to getDecoratorByClassName must return a ' + |
| 'new FakeComponentY instance', dy1, dy2); |
| |
| assertNull('getDecoratorByClassName must return null for unknown class', |
| goog.ui.registry.getDecoratorByClassName('fake-component-z')); |
| assertNull('getDecoratorByClassName must return null for empty string', |
| goog.ui.registry.getDecoratorByClassName('')); |
| } |
| |
| function testSetDecoratorByClassName() { |
| var dx1, dx2; |
| |
| dx1 = goog.ui.registry.getDecoratorByClassName('fake-component-x'); |
| assertTrue('fake-component-x must be decorated by a FakeComponentX', |
| dx1 instanceof FakeComponentX); |
| goog.ui.registry.setDecoratorByClassName('fake-component-x', |
| function() { |
| return new UnknownComponent(); |
| }); |
| dx2 = goog.ui.registry.getDecoratorByClassName('fake-component-x'); |
| assertTrue('fake-component-x must now be decorated by UnknownComponent', |
| dx2 instanceof UnknownComponent); |
| |
| assertThrows('Calling setDecoratorByClassName with invalid class name ' + |
| 'must throw error', |
| function() { |
| goog.ui.registry.setDecoratorByClassName('', function() { |
| return new UnknownComponent(); |
| }); |
| }); |
| |
| assertThrows('Calling setDecoratorByClassName with non-function ' + |
| 'decorator must throw error', |
| function() { |
| goog.ui.registry.setDecoratorByClassName('fake-component-x', |
| 'Not function'); |
| }); |
| } |
| |
| function testGetDecorator() { |
| var dx = goog.ui.registry.getDecorator(document.getElementById('x')); |
| assertTrue('Decorator for element with fake-component-x class must be ' + |
| 'a FakeComponentX', dx instanceof FakeComponentX); |
| |
| var dy = goog.ui.registry.getDecorator(document.getElementById('y')); |
| assertTrue('Decorator for element with fake-component-y class must be ' + |
| 'a FakeComponentY', dy instanceof FakeComponentY); |
| |
| var dz = goog.ui.registry.getDecorator(document.getElementById('z')); |
| assertNull('Decorator for element with unknown class must be null', dz); |
| |
| var du = goog.ui.registry.getDecorator(document.getElementById('u')); |
| assertNull('Decorator for element without CSS class must be null', du); |
| } |
| |
| function testReset() { |
| assertNotEquals('Some renderers must be registered', 0, |
| goog.object.getCount(goog.ui.registry.defaultRenderers_)); |
| assertNotEquals('Some decorators must be registered', 0, |
| goog.object.getCount(goog.ui.registry.decoratorFunctions_)); |
| |
| goog.ui.registry.reset(); |
| |
| assertTrue('No renderers must be registered', |
| goog.object.isEmpty(goog.ui.registry.defaultRenderers_)); |
| assertTrue('No decorators must be registered', |
| goog.object.isEmpty(goog.ui.registry.decoratorFunctions_)); |
| } |