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comparison: image/test/mochitest/test_bug478398.html
image/test/mochitest/test_bug478398.html
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:2c0b66bb786c |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <!-- | |
| 4 https://bugzilla.mozilla.org/show_bug.cgi?id=478398 | |
| 5 --> | |
| 6 <head> | |
| 7 <title>Test for Bug 478398</title> | |
| 8 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 9 <script type="text/javascript" src="imgutils.js"></script> | |
| 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> | |
| 11 </head> | |
| 12 <body> | |
| 13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=478398">Mozilla Bug 478398</a> | |
| 14 <pre id="test"> | |
| 15 <script class="testbody" type="text/javascript"> | |
| 16 | |
| 17 /** Test for Bug 399925. **/ | |
| 18 var oldTimeoutPref; | |
| 19 var oldDiscardPref; | |
| 20 SimpleTest.waitForExplicitFinish(); | |
| 21 window.onload = stage1; | |
| 22 var imageFilename = "bug478398_ONLY.png"; | |
| 23 | |
| 24 function stage1() | |
| 25 { | |
| 26 // Get the current pref values | |
| 27 oldTimeoutPref = getImagePref(DISCARD_TIMEOUT_PREF); | |
| 28 oldDiscardPref = getImagePref(DISCARD_ENABLED_PREF); | |
| 29 | |
| 30 // We're testing discarding here | |
| 31 setImagePref(DISCARD_ENABLED_PREF, true); | |
| 32 | |
| 33 // Sets the discard timer to 500 ms (max timeout = 2*500ms = 1s) | |
| 34 setImagePref(DISCARD_TIMEOUT_PREF, 500); | |
| 35 | |
| 36 // Create the image _after_ setting the discard timer pref | |
| 37 // This image was carefully constructed to make it a "big win" for discarding, | |
| 38 // so any reasonable heuristic should still discard it. | |
| 39 var image = new Image(); | |
| 40 image.setAttribute("id", "testimage"); | |
| 41 image.style.display = "none"; | |
| 42 image.src = imageFilename; | |
| 43 | |
| 44 // Put the image into the document | |
| 45 document.body.appendChild(image); | |
| 46 | |
| 47 // Wait for load, then do stage2 | |
| 48 image.onload = stage2; | |
| 49 } | |
| 50 | |
| 51 function stage2() | |
| 52 { | |
| 53 // Make sure we're loaded | |
| 54 ok(isImageLoaded("testimage"), "image should be loaded"); | |
| 55 | |
| 56 // We're loaded - force a synchronous decode | |
| 57 forceDecode("testimage"); | |
| 58 | |
| 59 // We should be decoded | |
| 60 ok(isFrameDecoded("testimage"), "image should be decoded"); | |
| 61 | |
| 62 // Wait 1.5 seconds, then finish the test | |
| 63 setTimeout("finishTest();", 1500); | |
| 64 | |
| 65 } | |
| 66 | |
| 67 function finishTest() | |
| 68 { | |
| 69 // The image should be discarded by now | |
| 70 ok(!isFrameDecoded("testimage"), "image should have been discarded!"); | |
| 71 | |
| 72 // Reset the prefs | |
| 73 setImagePref(DISCARD_TIMEOUT_PREF, oldTimeoutPref); | |
| 74 setImagePref(DISCARD_ENABLED_PREF, oldDiscardPref); | |
| 75 | |
| 76 // Finish the test | |
| 77 SimpleTest.finish(); | |
| 78 } | |
| 79 | |
| 80 | |
| 81 </script> | |
| 82 </pre> | |
| 83 </body> | |
| 84 </html> | |
| 85 |
