image/test/mochitest/test_animation_operators.html@ac0c01689b40
image/test/mochitest/test_animation_operators.html
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 <!DOCTYPE HTML>
2 <html>
3 <!--
4 https://bugzilla.mozilla.org/show_bug.cgi?id=936720
5 -->
6 <head>
7 <title>Test for Bug 936720</title>
8 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
9 <script type="application/javascript" src="/tests/SimpleTest/WindowSnapshot.js"></script>
10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
11 </head>
12 <body>
13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=936720">Mozilla Bug 936720</a>
14 <pre id="test">
15 <script type="application/javascript">
17 /** Test for Bug 936720 **/
19 // Because there is no event telling us when an animated image finishes
20 // animating, tests for the operators used by animated GIFs and PNGs
21 // require that we poll until we get the correct result. A fixed timeout
22 // can easily result in intermittent failures on tests running in VMs.
24 // (Note that we do _not_ poll the reference, so it must not be animated.)
26 var gTests = [
27 // IMPORTANT NOTE: For these tests, the test and reference are not
28 // snapshotted in the same way. The REFERENCE (second file) is
29 // assumed to be complete when loaded, but we poll the TEST
30 // (first file) until the test passes.
32 // Tests of the allowed disposal operators for both GIF and APNG: keep, clear,
33 // and restore previous.
34 "== green-background.html?clear.gif green.png",
35 "== green-background.html?clear.png green.png",
36 "== keep.gif green.png",
37 "== keep.png green.png",
38 "== restore-previous.gif green.png",
39 "== restore-previous.png green.png",
41 // Tests of the blending/compositing operators that only APNG supports.
42 "== over.png grey.png",
43 "!= source.png grey.png",
44 "== bug900200.png bug900200-ref.png",
46 // Test of subframe updates.
47 "== clear2.gif clear2-results.gif",
48 ];
50 // Maintain a reference count of how many things we're waiting for until
51 // we can say the tests are done.
52 var gDelayCount = 0;
53 function AddFinishDependency()
54 { ++gDelayCount; }
55 function RemoveFinishDependency()
56 { if (--gDelayCount == 0) SimpleTest.finish(); }
58 // We record the maximum number of times we had to look at a test before
59 // it switched to the passing state (though we assume it's 10 to start
60 // rather than 0 so that we have a reasonable default). Then we make a
61 // test "time out" if it takes more than gTimeoutFactor times that
62 // amount of time. This allows us to report a test failure rather than
63 // making a test failure just show up as a timeout.
64 var gMaxPassingTries = 10;
65 var gTimeoutFactor = 10;
67 function takeSnapshot(iframe_element)
68 {
69 return snapshotWindow(iframe_element.contentWindow, false);
70 }
72 function passes(op, shot1, shot2)
73 {
74 var [correct, s1, s2] = compareSnapshots(shot1, shot2, op == "==");
75 return correct;
76 }
78 function startTest(i)
79 {
80 var testLine = gTests[i];
81 var splitData = testLine.split(" ");
82 var testData =
83 { op: splitData[0], test: splitData[1], reference: splitData[2] };
84 var tries = 0;
86 // Maintain state specific to this test in the closure exposed to all
87 // the functions nested inside this one.
89 function startIframe(url)
90 {
91 var element = document.createElement("iframe");
92 element.addEventListener("load", handleLoad, false);
93 // Smaller than normal reftests, but enough for these.
94 element.setAttribute("style", "width: 100px; height: 100px");
95 element.setAttribute("frameborder", "0");
96 element.setAttribute("scrolling", "no");
97 element.src = url;
98 document.body.appendChild(element);
99 function handleLoad(event)
100 {
101 iframe.loaded = true;
102 if (iframe == reference) {
103 reference.snapshot = takeSnapshot(element);
104 }
105 var other = (iframe == test) ? reference : test;
106 if (other.loaded) {
107 setTimeout(checkTest, 100);
108 }
109 }
110 function checkTest()
111 {
112 var test_snapshot = takeSnapshot(test.element);
113 if (passes(testData.op, test_snapshot, reference.snapshot)) {
114 if (tries > gMaxPassingTries) {
115 gMaxPassingTries = tries;
116 }
117 report(true);
118 } else {
119 ++tries;
120 if (tries > gMaxPassingTries * gTimeoutFactor) {
121 info("Giving up after " + tries + " tries, " +
122 "maxp=" + gMaxPassingTries +
123 "fact=" + gTimeoutFactor);
124 report(false);
125 } else {
126 // The animation might not have finished. Try again in 100ms.
127 setTimeout(checkTest, 100);
128 }
129 }
130 }
131 function report(result)
132 {
133 ok(result, "(" + i + ") " +
134 testData.op + " " + testData.test + " " + testData.reference);
135 RemoveFinishDependency();
136 }
137 var iframe = { element: element, loaded: false };
139 return iframe;
140 }
142 AddFinishDependency();
143 var test = startIframe(testData.test);
144 var reference = startIframe(testData.reference);
145 }
147 SimpleTest.waitForExplicitFinish();
149 // Run the tests.
150 for (var i = 0; i < gTests.length; ++i) {
151 startTest(i);
152 }
154 </script>
155 </pre>
156 </body>
157 </html>
