129 lines
3.8 KiB
JavaScript
129 lines
3.8 KiB
JavaScript
// Copyright 2012 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @fileoverview Unit tests for goog.labs.net.Image.
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*
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* @author nnaze@google.com (Nathan Naze)
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*/
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/** @suppress {extraProvide} */
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goog.provide('goog.labs.net.imageTest');
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goog.require('goog.events');
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goog.require('goog.labs.net.image');
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goog.require('goog.result');
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goog.require('goog.result.Result');
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goog.require('goog.string');
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goog.require('goog.testing.AsyncTestCase');
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goog.require('goog.testing.jsunit');
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goog.require('goog.testing.recordFunction');
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goog.setTestOnly('goog.labs.net.ImageTest');
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var asyncTestCase = goog.testing.AsyncTestCase.createAndInstall();
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function testValidImage() {
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var url = 'testdata/cleardot.gif';
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asyncTestCase.waitForAsync('image load');
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assertEquals(0, goog.events.getTotalListenerCount());
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var result = goog.labs.net.image.load(url);
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goog.result.waitOnSuccess(result, function(value) {
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assertEquals(goog.result.Result.State.SUCCESS, result.getState());
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assertEquals('IMG', value.tagName);
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assertTrue(goog.string.endsWith(value.src, url));
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assertUndefined(result.getError());
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assertEquals('Listeners should have been cleaned up.',
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0, goog.events.getTotalListenerCount());
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asyncTestCase.continueTesting();
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});
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}
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function testInvalidImage() {
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var url = 'testdata/invalid.gif'; // This file does not exist.
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asyncTestCase.waitForAsync('image load');
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assertEquals(0, goog.events.getTotalListenerCount());
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var result = goog.labs.net.image.load(url);
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goog.result.wait(result, function(result) {
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assertEquals(goog.result.Result.State.ERROR, result.getState());
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assertUndefined(result.getValue());
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assertUndefined(result.getError());
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assertEquals('Listeners should have been cleaned up.',
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0, goog.events.getTotalListenerCount());
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asyncTestCase.continueTesting();
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});
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}
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function testImageFactory() {
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var returnedImage = new Image();
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var factory = function() {
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return returnedImage;
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};
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var countedFactory = goog.testing.recordFunction(factory);
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var url = 'testdata/cleardot.gif';
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asyncTestCase.waitForAsync('image load');
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assertEquals(0, goog.events.getTotalListenerCount());
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var result = goog.labs.net.image.load(url, countedFactory);
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goog.result.waitOnSuccess(result, function(value) {
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assertEquals(goog.result.Result.State.SUCCESS, result.getState());
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assertEquals(returnedImage, value);
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assertEquals(1, countedFactory.getCallCount());
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assertUndefined(result.getError());
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assertEquals('Listeners should have been cleaned up.',
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0, goog.events.getTotalListenerCount());
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asyncTestCase.continueTesting();
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});
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}
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function testExistingImage() {
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var image = new Image();
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var url = 'testdata/cleardot.gif';
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asyncTestCase.waitForAsync('image load');
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assertEquals(0, goog.events.getTotalListenerCount());
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var result = goog.labs.net.image.load(url, image);
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goog.result.waitOnSuccess(result, function(value) {
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assertEquals(goog.result.Result.State.SUCCESS, result.getState());
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assertEquals(image, value);
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assertUndefined(result.getError());
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assertEquals('Listeners should have been cleaned up.',
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0, goog.events.getTotalListenerCount());
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asyncTestCase.continueTesting();
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});
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}
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