dom/browser-element/mochitest/priority/test_WebGLContextLost.html@7e26c7da4463 (annotated)
dom/browser-element/mochitest/priority/test_WebGLContextLost.html
Wed, 31 Dec 2014 06:55:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:50 +0100
- changeset 2
- 7e26c7da4463
- permissions
- -rw-r--r--
Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2
| michael@0 | 1 | <!DOCTYPE HTML> |
| michael@0 | 2 | <html> |
| michael@0 | 3 | <!-- |
| michael@0 | 4 | Test that calling setVisible('false') and then sending a low-memory |
| michael@0 | 5 | notification causes a WebGL context loss event. |
| michael@0 | 6 | --> |
| michael@0 | 7 | <head> |
| michael@0 | 8 | <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 9 | <script type="application/javascript" src="../browserElementTestHelpers.js"></script> |
| michael@0 | 10 | <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> |
| michael@0 | 11 | </head> |
| michael@0 | 12 | <body> |
| michael@0 | 13 | |
| michael@0 | 14 | <script type="application/javascript;version=1.7"> |
| michael@0 | 15 | "use strict"; |
| michael@0 | 16 | |
| michael@0 | 17 | SimpleTest.waitForExplicitFinish(); |
| michael@0 | 18 | browserElementTestHelpers.setEnabledPref(true); |
| michael@0 | 19 | browserElementTestHelpers.addPermission(); |
| michael@0 | 20 | browserElementTestHelpers.enableProcessPriorityManager(); |
| michael@0 | 21 | |
| michael@0 | 22 | function runTest() { |
| michael@0 | 23 | var iframe = document.createElement('iframe'); |
| michael@0 | 24 | iframe.setAttribute('mozbrowser', true); |
| michael@0 | 25 | iframe.src = 'file_WebGLContextLost.html'; |
| michael@0 | 26 | |
| michael@0 | 27 | // We use this to ensure that we don't call SimpleTest.finish() twice. |
| michael@0 | 28 | var finished = false; |
| michael@0 | 29 | function finishOnce() { |
| michael@0 | 30 | if (!finished) { |
| michael@0 | 31 | SimpleTest.finish(); |
| michael@0 | 32 | finished = true; |
| michael@0 | 33 | } |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | expectMozbrowserEvent(iframe, 'error').then(function(e) { |
| michael@0 | 37 | if (finished) { |
| michael@0 | 38 | // We don't care if the frame dies after the test finishes. |
| michael@0 | 39 | return; |
| michael@0 | 40 | } |
| michael@0 | 41 | todo(false, "child process is crashing; this probably indicates that " + |
| michael@0 | 42 | "something is wrong with WebGL in child processes on your machine."); |
| michael@0 | 43 | is(e.detail.type, 'fatal'); |
| michael@0 | 44 | }).then(finishOnce); |
| michael@0 | 45 | |
| michael@0 | 46 | var childID = null; |
| michael@0 | 47 | expectOnlyOneProcessCreated().then(function(chid) { |
| michael@0 | 48 | childID = chid; |
| michael@0 | 49 | return Promise.all( |
| michael@0 | 50 | [expectPriorityChange(childID, 'FOREGROUND'), |
| michael@0 | 51 | expectMozbrowserEvent(iframe, 'loadend'), |
| michael@0 | 52 | expectMozbrowserEvent(iframe, 'showmodalprompt').then(function(e) { |
| michael@0 | 53 | is(e.detail.message, 'ready'); |
| michael@0 | 54 | }) |
| michael@0 | 55 | ]); |
| michael@0 | 56 | }).then(function() { |
| michael@0 | 57 | // Fire a low-memory notification once the process goes into the background |
| michael@0 | 58 | // due to the setVisible(false) call below. |
| michael@0 | 59 | expectPriorityChange(childID, 'BACKGROUND').then(function() { |
| michael@0 | 60 | SimpleTest.executeSoon(function() { |
| michael@0 | 61 | var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"] |
| michael@0 | 62 | .getService(SpecialPowers.Ci.nsIObserverService); |
| michael@0 | 63 | os.notifyObservers(null, "memory-pressure", "low-memory"); |
| michael@0 | 64 | ok(true, 'Successfully notified observers.'); |
| michael@0 | 65 | }); |
| michael@0 | 66 | }); |
| michael@0 | 67 | |
| michael@0 | 68 | // This test isn't the only possible source of a low-memory notification; the |
| michael@0 | 69 | // browser can fire one whenever it likes. So it's fine if we lose the |
| michael@0 | 70 | // WebGL context before we fire the low-memory notification ourself. |
| michael@0 | 71 | |
| michael@0 | 72 | var p = expectMozbrowserEvent(iframe, 'showmodalprompt').then(function(e) { |
| michael@0 | 73 | is(e.detail.message, 'webglcontextlost'); |
| michael@0 | 74 | }); |
| michael@0 | 75 | |
| michael@0 | 76 | iframe.setVisible(false); |
| michael@0 | 77 | return p; |
| michael@0 | 78 | }).then(finishOnce); |
| michael@0 | 79 | |
| michael@0 | 80 | document.body.appendChild(iframe); |
| michael@0 | 81 | } |
| michael@0 | 82 | |
| michael@0 | 83 | addEventListener('testready', function() { |
| michael@0 | 84 | // At the time this test was written, webgl was blocklisted inside child |
| michael@0 | 85 | // processes on desktop Linux. The issue is that we spawn a child process to |
| michael@0 | 86 | // read driver info, but we only did this on the main prrocess. Child |
| michael@0 | 87 | // processes never read the driver info themselves, nor do they get it from |
| michael@0 | 88 | // their parent, so they refuse to start up WebGL. |
| michael@0 | 89 | // |
| michael@0 | 90 | // This isn't a problem on B2G because we force WebGL on there. But it |
| michael@0 | 91 | // obviously makes this test difficult. bjacob says forcing WebGL on here |
| michael@0 | 92 | // shouldn't hurt things, and anyway this setting mirrors what we do on B2G, |
| michael@0 | 93 | // which is what we're trying to test! |
| michael@0 | 94 | SpecialPowers.pushPrefEnv({set: [["webgl.force-enabled", true]]}, |
| michael@0 | 95 | runTest); |
| michael@0 | 96 | }); |
| michael@0 | 97 | |
| michael@0 | 98 | </script> |
| michael@0 | 99 | </body> |
| michael@0 | 100 | </html> |
