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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=932937
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 932937</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
<script type="application/javascript" src="inspector-helpers.js"></script>
<script type="application/javascript">
"use strict";
window.onload = function() {
SimpleTest.waitForExplicitFinish();
runNextTest();
};
let gWalker = null;
addTest(async function setup() {
const url = document.getElementById("inspectorContent").href;
const { target } = await attachURL(url);
const inspector = await target.getFront("inspector");
gWalker = inspector.walker;
runNextTest();
});
addTest(async function testLargeImage() {
// Select the image node from the test page
const img = await gWalker.querySelector(gWalker.rootNode, ".big-horizontal");
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
const imageData = await img.getImageData(100);
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 5333, "Natural width of the image correct");
is(imageData.size.naturalHeight, 3000, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testLargeCanvas() {
// Select the canvas node from the test page
const canvas = await gWalker.querySelector(gWalker.rootNode, ".big-vertical");
ok(canvas, "Image node found in the test page");
ok(canvas.getImageData, "Image node has the getImageData function");
const imageData = await canvas.getImageData(350);
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 1000, "Natural width of the image correct");
is(imageData.size.naturalHeight, 2000, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testSmallImage() {
// Select the small image node from the test page
const img = await gWalker.querySelector(gWalker.rootNode, ".small");
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
const imageData = await img.getImageData();
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 245, "Natural width of the image correct");
is(imageData.size.naturalHeight, 240, "Natural width of the image correct");
ok(!imageData.size.resized, "Image was NOT resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testDataImage() {
// Select the data image node from the test page
const img = await gWalker.querySelector(gWalker.rootNode, ".data");
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
const imageData = await img.getImageData(14);
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 28, "Natural width of the image correct");
is(imageData.size.naturalHeight, 28, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
const str = await imageData.data.string();
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
addTest(async function testNonImgOrCanvasElements() {
const body = await gWalker.querySelector(gWalker.rootNode, "body");
await ensureRejects(body.getImageData(), "Invalid element");
runNextTest();
});
addTest(function cleanup() {
gWalker = null;
runNextTest();
});
/**
* Checks if the server told the truth about resizing the image
*/
function testResizing(imageData, str) {
const img = document.createElement("img");
img.addEventListener("load", () => {
const resized = !(img.naturalWidth == imageData.size.naturalWidth &&
img.naturalHeight == imageData.size.naturalHeight);
is(imageData.size.resized, resized, "Server told the truth about resizing");
runNextTest();
});
img.src = str;
}
/**
* Asserts that the given promise rejects.
*/
function ensureRejects(promise, desc) {
return promise.then(() => {
ok(false, desc + ": promise resolved unexpectedly.");
}, () => {
ok(true, desc + ": promise rejected as expected.");
});
}
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=932937">Mozilla Bug 932937</a>
<a id="inspectorContent" target="_blank" href="inspector_getImageData.html">Test Document</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>
|
