1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
// Copyright 2012 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.
/**
* @fileoverview Unit tests for goog.labs.net.Image.
*
* @author nnaze@google.com (Nathan Naze)
*/
/** @suppress {extraRequire} */
goog.provide('goog.labs.net.imageTest');
goog.require('goog.events');
goog.require('goog.labs.net.image');
goog.require('goog.result');
goog.require('goog.result.Result');
goog.require('goog.string');
goog.require('goog.testing.AsyncTestCase');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordFunction');
goog.setTestOnly('goog.labs.net.ImageTest');
var asyncTestCase = goog.testing.AsyncTestCase.createAndInstall();
function testValidImage() {
var url = 'testdata/cleardot.gif';
asyncTestCase.waitForAsync('image load');
assertEquals(0, goog.events.getTotalListenerCount());
var result = goog.labs.net.image.load(url);
goog.result.waitOnSuccess(result, function(value) {
assertEquals(goog.result.Result.State.SUCCESS, result.getState());
assertEquals('IMG', value.tagName);
assertTrue(goog.string.endsWith(value.src, url));
assertUndefined(result.getError());
assertEquals('Listeners should have been cleaned up.',
0, goog.events.getTotalListenerCount());
asyncTestCase.continueTesting();
});
}
function testInvalidImage() {
var url = 'testdata/invalid.gif'; // This file does not exist.
asyncTestCase.waitForAsync('image load');
assertEquals(0, goog.events.getTotalListenerCount());
var result = goog.labs.net.image.load(url);
goog.result.wait(result, function(result) {
assertEquals(goog.result.Result.State.ERROR, result.getState());
assertUndefined(result.getValue());
assertUndefined(result.getError());
assertEquals('Listeners should have been cleaned up.',
0, goog.events.getTotalListenerCount());
asyncTestCase.continueTesting();
});
}
function testImageFactory() {
var returnedImage = new Image();
var factory = function() {
return returnedImage;
}
var countedFactory = goog.testing.recordFunction(factory);
var url = 'testdata/cleardot.gif';
asyncTestCase.waitForAsync('image load');
assertEquals(0, goog.events.getTotalListenerCount());
var result = goog.labs.net.image.load(url, countedFactory);
goog.result.waitOnSuccess(result, function(value) {
assertEquals(goog.result.Result.State.SUCCESS, result.getState());
assertEquals(returnedImage, value);
assertEquals(1, countedFactory.getCallCount());
assertUndefined(result.getError());
assertEquals('Listeners should have been cleaned up.',
0, goog.events.getTotalListenerCount());
asyncTestCase.continueTesting();
});
}
function testExistingImage() {
var image = new Image();
var url = 'testdata/cleardot.gif';
asyncTestCase.waitForAsync('image load');
assertEquals(0, goog.events.getTotalListenerCount());
var result = goog.labs.net.image.load(url, image);
goog.result.waitOnSuccess(result, function(value) {
assertEquals(goog.result.Result.State.SUCCESS, result.getState());
assertEquals(image, value);
assertUndefined(result.getError());
assertEquals('Listeners should have been cleaned up.',
0, goog.events.getTotalListenerCount());
asyncTestCase.continueTesting();
});
}
|
