mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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100 lines
3.5 KiB
HTML
100 lines
3.5 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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Test that calling setVisible('false') and then sending a low-memory
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notification causes a WebGL context loss event.
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-->
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<head>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<script type="application/javascript" src="../browserElementTestHelpers.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<script type="application/javascript;version=1.7">
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"use strict";
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SimpleTest.waitForExplicitFinish();
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browserElementTestHelpers.setEnabledPref(true);
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browserElementTestHelpers.addPermission();
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browserElementTestHelpers.enableProcessPriorityManager();
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function runTest() {
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var iframe = document.createElement('iframe');
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iframe.setAttribute('mozbrowser', true);
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iframe.src = 'file_WebGLContextLost.html';
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// We use this to ensure that we don't call SimpleTest.finish() twice.
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var finished = false;
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function finishOnce() {
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if (!finished) {
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SimpleTest.finish();
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finished = true;
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}
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}
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expectMozbrowserEvent(iframe, 'error').then(function(e) {
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if (finished) {
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// We don't care if the frame dies after the test finishes.
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return;
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}
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todo(false, "child process is crashing; this probably indicates that " +
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"something is wrong with WebGL in child processes on your machine.");
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is(e.detail.type, 'fatal');
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}).then(finishOnce);
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var childID = null;
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Promise.all([
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expectOnlyOneProcessCreated('FOREGROUND').then(function(chid) {
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childID = chid;
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}),
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expectMozbrowserEvent(iframe, 'loadend'),
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expectMozbrowserEvent(iframe, 'showmodalprompt').then(function(e) {
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is(e.detail.message, 'ready');
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})
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]).then(function() {
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// Fire a low-memory notification once the process goes into the background
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// due to the setVisible(false) call below.
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expectPriorityChange(childID, 'BACKGROUND').then(function() {
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SimpleTest.executeSoon(function() {
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var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"]
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.getService(SpecialPowers.Ci.nsIObserverService);
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os.notifyObservers(null, "memory-pressure", "low-memory");
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ok(true, 'Successfully notified observers.');
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});
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});
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// This test isn't the only possible source of a low-memory notification; the
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// browser can fire one whenever it likes. So it's fine if we lose the
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// WebGL context before we fire the low-memory notification ourself.
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var p = expectMozbrowserEvent(iframe, 'showmodalprompt').then(function(e) {
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is(e.detail.message, 'webglcontextlost');
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});
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iframe.setVisible(false);
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return p;
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}).then(finishOnce);
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document.body.appendChild(iframe);
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}
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addEventListener('testready', function() {
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// At the time this test was written, webgl was blocklisted inside child
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// processes on desktop Linux. The issue is that we spawn a child process to
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// read driver info, but we only did this on the main prrocess. Child
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// processes never read the driver info themselves, nor do they get it from
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// their parent, so they refuse to start up WebGL.
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//
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// This isn't a problem on B2G because we force WebGL on there. But it
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// obviously makes this test difficult. bjacob says forcing WebGL on here
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// shouldn't hurt things, and anyway this setting mirrors what we do on B2G,
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// which is what we're trying to test!
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SpecialPowers.pushPrefEnv({set: [["webgl.force-enabled", true]]},
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runTest);
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});
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</script>
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</body>
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</html>
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