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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
| commit | 9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /image/test/mochitest/test_bug399925.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'image/test/mochitest/test_bug399925.html')
| -rw-r--r-- | image/test/mochitest/test_bug399925.html | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/image/test/mochitest/test_bug399925.html b/image/test/mochitest/test_bug399925.html new file mode 100644 index 0000000000..ae45479377 --- /dev/null +++ b/image/test/mochitest/test_bug399925.html @@ -0,0 +1,102 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=399925 +--> +<head> + <title>Test for Bug 399925</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <script type="text/javascript" src="imgutils.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=399925">Mozilla Bug 399925</a> +<p id="display"></p> +<div id="content" style="display: none"> +<canvas id="canvas" width="100" height="100"> </canvas> +</div> +<pre id="test"> +<script class="testbody" type="text/javascript"> + +/** Test for Bug 399925. **/ +var triggerDiscardingManually = false; +var pngResults = []; +SimpleTest.waitForExplicitFinish(); +SimpleTest.requestFlakyTimeout("untriaged"); + +window.onload = function() { + // It'd be nice to reduce the discard timer here, but unfortunately we only + // read that pref on startup. We instead manually trigger discarding on + // platforms where the discard timer is too long (which we'll somewhat + // arbitrarily define as 'longer than 60 seconds'). + var expirationMs = + SpecialPowers.getIntPref('image.mem.surfacecache.min_expiration_ms'); + if (expirationMs > 60000) { + ok(true, 'Triggering discarding manually because SurfaceCache expiration ' + + 'is ' + expirationMs + ' ms'); + triggerDiscardingManually = true; + } else { + ok(true, 'Using normal discarding because SurfaceCache expiration ' + + 'is ' + expirationMs + ' ms'); + } + + // Enable discarding for the test. + SpecialPowers.pushPrefEnv({ + 'set':[['image.mem.discardable',true]] + }, runTest); +} + +function runTest() { + var image = new Image(); + image.setAttribute("id", "gif"); + + // 1. Draw the canvas once on loadComplete + // 2. Redraw the canvas and compare the results right on discard + addCallbacks(image, drawCanvas, function() { + drawCanvas(); + is(pngResults[0], pngResults[1], "got different rendered results"); + SimpleTest.finish(); + }); + + image.src = "bug399925.gif"; + document.getElementById("content").appendChild(image); + + if (triggerDiscardingManually) { + var request = SpecialPowers.wrap(image) + .getRequest(SpecialPowers.Ci.nsIImageLoadingContent.CURRENT_REQUEST); + setTimeout(() => request.requestDiscard(), 1000); + } +} + +function addCallbacks(anImage, loadCompleteCallback, discardCallback) { + var observer = new ImageDecoderObserverStub(); + observer.discard = function () { + imgLoadingContent.removeObserver(scriptedObserver); + discardCallback(); + } + observer.loadComplete = loadCompleteCallback; + observer = SpecialPowers.wrapCallbackObject(observer); + + var scriptedObserver = SpecialPowers.Cc["@mozilla.org/image/tools;1"] + .getService(SpecialPowers.Ci.imgITools) + .createScriptedObserver(observer); + + var imgLoadingContent = SpecialPowers.wrap(anImage); + imgLoadingContent.addObserver(scriptedObserver); +} + +function drawCanvas() { + var canvas = document.getElementById('canvas'); + var context = canvas.getContext('2d'); + var gif = document.getElementById('gif'); + + context.drawImage(gif, 0, 0); + ok(true, "we got through the drawImage call without an exception being thrown"); + pngResults.push(canvas.toDataURL()); +} + +</script> +</pre> +</body> +</html> + |