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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /image/test/mochitest/test_has_transparency.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1089880
+-->
+<head>
+ <title>Test for Bug 1089880</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="application/javascript" src="/tests/SimpleTest/WindowSnapshot.js"></script>
+ <script type="application/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=1089880">Mozilla Bug 1089880</a>
+<p id="display"></p>
+<div id="content">
+</div>
+<pre id="test">
+<script type="application/javascript;version=1.8">
+/** Test for Bug 1089880 **/
+
+SimpleTest.requestFlakyTimeout("Early failure timeout");
+SimpleTest.waitForExplicitFinish();
+
+const FAILURE_TIMEOUT = 120000; // Fail early after 120 seconds (2 minutes)
+
+const Cc = SpecialPowers.Cc;
+const Ci = SpecialPowers.Ci;
+const gContent = document.getElementById("content");
+
+var gCanvas;
+var gCanvasCtx;
+var gImg;
+var gMyDecoderObserver;
+var gIsTestFinished = false;
+var gFiles;
+var gCurrentFileIsTransparent = false;
+var gHasTransparencyWasCalled = false;
+
+function testFiles() {
+ // [A, B] where 'A' is the image and 'B' is whether it's transparent.
+
+ // PNGs and GIFs may be transparent or not.
+ yield ["red.png", false];
+ yield ["transparent.png", true];
+ yield ["red.gif", false];
+ yield ["transparent.gif", true];
+
+ // GIFs with padding on the first frame are always transparent.
+ yield ["first-frame-padding.gif", true];
+
+ // JPEGs are never transparent.
+ yield ["damon.jpg", false];
+
+ // Most BMPs are not transparent. (The TestMetadata GTest, which will
+ // eventually replace this test totally, has coverage for the kinds that can be
+ // transparent.)
+ yield ["opaque.bmp", false];
+
+ // ICO files which contain BMPs have an additional type of transparency - the
+ // AND mask - that warrants separate testing. (Although, after bug 1201796,
+ // all ICOs are considered transparent.)
+ yield ["ico-bmp-opaque.ico", true];
+ yield ["ico-bmp-transparent.ico", true];
+
+ // SVGs are always transparent.
+ yield ["lime100x100.svg", true];
+}
+
+function loadNext() {
+ var currentFile = "";
+ try {
+ gHasTransparencyWasCalled = false;
+ [currentFile, gCurrentFileIsTransparent] = gFiles.next();
+ gImg.setAttribute("src", currentFile);
+ } catch (e) {
+ // We ran out of test files.
+ cleanUpAndFinish();
+ }
+}
+
+function onHasTransparency(aRequest) {
+ gHasTransparencyWasCalled = true;
+}
+
+function onDecodeComplete(aRequest) {
+ if (!gCurrentFileIsTransparent) {
+ ok(!gHasTransparencyWasCalled,
+ "onHasTransparency was not called for non-transparent file " + gImg.src);
+ } else {
+ ok(gHasTransparencyWasCalled,
+ "onHasTransparency was called for transparent file " + gImg.src);
+ }
+ loadNext();
+}
+
+function onError() {
+ if (gIsTestFinished) {
+ return;
+ }
+ ok(false, "Should successfully load " + gImg.src);
+ loadNext();
+}
+
+function onLoad() {
+ if (gIsTestFinished) {
+ return;
+ }
+ ok(true, "Should successfully load " + gImg.src);
+
+ // Force decoding of the image.
+ SimpleTest.executeSoon(function() {
+ gCanvasCtx.drawImage(gImg, 0, 0);
+ });
+}
+
+function failTest() {
+ ok(false, "timing out after " + FAILURE_TIMEOUT + "ms. " +
+ "currently displaying " + gImg.src);
+ cleanUpAndFinish();
+}
+
+function cleanUpAndFinish() {
+ if (gIsTestFinished) {
+ return;
+ }
+ gIsTestFinished = true;
+ let imgLoadingContent = SpecialPowers.wrap(gImg).QueryInterface(Ci.nsIImageLoadingContent);
+ imgLoadingContent.removeObserver(gMyDecoderObserver);
+ SimpleTest.finish();
+}
+
+function main() {
+ gFiles = testFiles();
+ gCanvas = document.createElement('canvas');
+ gCanvasCtx = gCanvas.getContext('2d');
+ gImg = new Image();
+ gImg.onload = onLoad;
+ gImg.onerror = onError;
+
+ // Create, customize & attach decoder observer.
+ observer = new ImageDecoderObserverStub();
+ observer.hasTransparency = onHasTransparency;
+ observer.decodeComplete = onDecodeComplete;
+ gMyDecoderObserver =
+ Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools)
+ .createScriptedObserver(SpecialPowers.wrapCallbackObject(observer));
+ let imgLoadingContent = SpecialPowers.wrap(gImg).QueryInterface(Ci.nsIImageLoadingContent);
+ imgLoadingContent.addObserver(gMyDecoderObserver);
+
+ // We want to test the cold loading behavior, so clear cache in case an
+ // earlier test got our image in there already.
+ clearAllImageCaches();
+
+ // Load the first image.
+ loadNext();
+
+ // In case something goes wrong, fail earlier than mochitest timeout,
+ // and with more information.
+ setTimeout(failTest, FAILURE_TIMEOUT);
+}
+
+window.onload = main;
+
+</script>
+</pre>
+</body>
+</html>