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comparison: dom/browser-element/mochitest/priority/test_Preallocated.html
dom/browser-element/mochitest/priority/test_Preallocated.html
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| -1:000000000000 | 0:c8b451ed71f4 |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <!-- | |
| 4 Test that the preallocated process starts up with priority BACKGROUND. | |
| 5 --> | |
| 6 <head> | |
| 7 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 8 <script type="application/javascript" src="../browserElementTestHelpers.js"></script> | |
| 9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> | |
| 10 </head> | |
| 11 <body> | |
| 12 | |
| 13 <script type="application/javascript;version=1.7"> | |
| 14 "use strict"; | |
| 15 | |
| 16 SimpleTest.waitForExplicitFinish(); | |
| 17 browserElementTestHelpers.setEnabledPref(true); | |
| 18 browserElementTestHelpers.addPermission(); | |
| 19 browserElementTestHelpers.enableProcessPriorityManager(); | |
| 20 | |
| 21 var preallocationEnabledPref = null; | |
| 22 try { | |
| 23 preallocationEnabledPref = SpecialPowers.getBoolPref('dom.ipc.processPrelaunch.enabled'); | |
| 24 } | |
| 25 catch(e) { | |
| 26 preallocationEnabledPref = null; | |
| 27 } | |
| 28 | |
| 29 var childID = null; | |
| 30 | |
| 31 var cleanedUp = false; | |
| 32 function cleanUp() | |
| 33 { | |
| 34 if (cleanedUp) { | |
| 35 return; | |
| 36 } | |
| 37 | |
| 38 cleanedUp = true; | |
| 39 | |
| 40 if (preallocationEnabledPref === null) { | |
| 41 SpecialPowers.clearUserPref('dom.ipc.processPrelaunch.enabled'); | |
| 42 } else { | |
| 43 SpecialPowers.setBoolPref('dom.ipc.processPrelaunch.enabled', | |
| 44 preallocationEnabledPref); | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 // Even if this test times out, we still want to run cleanUp so as to set the | |
| 49 // pref back. | |
| 50 addEventListener('unload', cleanUp); | |
| 51 | |
| 52 function runTest() | |
| 53 { | |
| 54 if (preallocationEnabledPref) { | |
| 55 ok(false, "dom.ipc.processPrelaunch.enabled must be " + | |
| 56 "false for this test to work."); | |
| 57 SimpleTest.finish(); | |
| 58 return; | |
| 59 } | |
| 60 | |
| 61 // Ensure that the preallocated process initially gets BACKGROUND priority. | |
| 62 // That's it. | |
| 63 expectProcessCreated().then(function(childID) { | |
| 64 return expectPriorityChange(childID, 'PREALLOC', 'CPU_LOW'); | |
| 65 }).then(function() { | |
| 66 // We need to set the pref asynchoronously or the preallocated process won't | |
| 67 // be shut down. | |
| 68 SimpleTest.executeSoon(function(){ | |
| 69 cleanUp(); | |
| 70 SimpleTest.finish(); | |
| 71 }); | |
| 72 }); | |
| 73 | |
| 74 // Setting this pref to true should cause us to prelaunch a process. | |
| 75 SpecialPowers.setBoolPref('dom.ipc.processPrelaunch.enabled', true); | |
| 76 } | |
| 77 | |
| 78 addEventListener('testready', runTest); | |
| 79 </script> | |
| 80 </body> | |
| 81 </html> |
