1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/image/test/mochitest/test_bug478398.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,85 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=478398
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 478398</title>
1.11 + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <script type="text/javascript" src="imgutils.js"></script>
1.13 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
1.14 +</head>
1.15 +<body>
1.16 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=478398">Mozilla Bug 478398</a>
1.17 +<pre id="test">
1.18 +<script class="testbody" type="text/javascript">
1.19 +
1.20 +/** Test for Bug 399925. **/
1.21 +var oldTimeoutPref;
1.22 +var oldDiscardPref;
1.23 +SimpleTest.waitForExplicitFinish();
1.24 +window.onload = stage1;
1.25 +var imageFilename = "bug478398_ONLY.png";
1.26 +
1.27 +function stage1()
1.28 +{
1.29 + // Get the current pref values
1.30 + oldTimeoutPref = getImagePref(DISCARD_TIMEOUT_PREF);
1.31 + oldDiscardPref = getImagePref(DISCARD_ENABLED_PREF);
1.32 +
1.33 + // We're testing discarding here
1.34 + setImagePref(DISCARD_ENABLED_PREF, true);
1.35 +
1.36 + // Sets the discard timer to 500 ms (max timeout = 2*500ms = 1s)
1.37 + setImagePref(DISCARD_TIMEOUT_PREF, 500);
1.38 +
1.39 + // Create the image _after_ setting the discard timer pref
1.40 + // This image was carefully constructed to make it a "big win" for discarding,
1.41 + // so any reasonable heuristic should still discard it.
1.42 + var image = new Image();
1.43 + image.setAttribute("id", "testimage");
1.44 + image.style.display = "none";
1.45 + image.src = imageFilename;
1.46 +
1.47 + // Put the image into the document
1.48 + document.body.appendChild(image);
1.49 +
1.50 + // Wait for load, then do stage2
1.51 + image.onload = stage2;
1.52 +}
1.53 +
1.54 +function stage2()
1.55 +{
1.56 + // Make sure we're loaded
1.57 + ok(isImageLoaded("testimage"), "image should be loaded");
1.58 +
1.59 + // We're loaded - force a synchronous decode
1.60 + forceDecode("testimage");
1.61 +
1.62 + // We should be decoded
1.63 + ok(isFrameDecoded("testimage"), "image should be decoded");
1.64 +
1.65 + // Wait 1.5 seconds, then finish the test
1.66 + setTimeout("finishTest();", 1500);
1.67 +
1.68 +}
1.69 +
1.70 +function finishTest()
1.71 +{
1.72 + // The image should be discarded by now
1.73 + ok(!isFrameDecoded("testimage"), "image should have been discarded!");
1.74 +
1.75 + // Reset the prefs
1.76 + setImagePref(DISCARD_TIMEOUT_PREF, oldTimeoutPref);
1.77 + setImagePref(DISCARD_ENABLED_PREF, oldDiscardPref);
1.78 +
1.79 + // Finish the test
1.80 + SimpleTest.finish();
1.81 +}
1.82 +
1.83 +
1.84 +</script>
1.85 +</pre>
1.86 +</body>
1.87 +</html>
1.88 +
