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Diffstat (limited to 'gfx/tests/mochitest/test_overdraw.html')
| -rw-r--r-- | gfx/tests/mochitest/test_overdraw.html | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gfx/tests/mochitest/test_overdraw.html b/gfx/tests/mochitest/test_overdraw.html new file mode 100644 index 000000000..3ff9ec32e --- /dev/null +++ b/gfx/tests/mochitest/test_overdraw.html @@ -0,0 +1,23 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test overdraw</title> + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> +<body> +<script type="application/javascript"> +var domWindowUtils = SpecialPowers.getDOMWindowUtils(window); + +var overdraw = domWindowUtils.requestCompositorProperty("overdraw"); + +if (overdraw == -1) { + // Overdraw queries are not supported on non OMTC builds. + ok(overdraw == -1, "Platform doesn't use a compositor."); +} else { + // Overdraw may be lower than 100% like on OS X where we don't + // composite the window corners. + ok(overdraw > 0.95 && overdraw < 200, "Overdraw: " + overdraw); +} +</script> +</body> |