diff options
Diffstat (limited to 'devtools/server/tests/mochitest/test_memory_allocations_02.html')
-rw-r--r-- | devtools/server/tests/mochitest/test_memory_allocations_02.html | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/devtools/server/tests/mochitest/test_memory_allocations_02.html b/devtools/server/tests/mochitest/test_memory_allocations_02.html new file mode 100644 index 000000000..0133a27b0 --- /dev/null +++ b/devtools/server/tests/mochitest/test_memory_allocations_02.html @@ -0,0 +1,76 @@ +<!DOCTYPE HTML> +<html> +<!-- +Bug 1132764 - Test controlling the maximum allocations log length over the RDP. +--> +<head> + <meta charset="utf-8"> + <title>Memory monitoring actor test</title> + <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"> +</head> +<body> +<pre id="test"> +<script src="memory-helpers.js" type="application/javascript;version=1.8"></script> +<script> +window.onload = function() { + SimpleTest.waitForExplicitFinish(); + + Task.spawn(function* () { + var { memory, client } = yield startServerAndGetSelectedTabMemory(); + yield memory.attach(); + + var allocs = []; + var eventsFired = 0; + var intervalId = null; + function onAlloc () { + eventsFired++; + } + function startAllocating () { + intervalId = setInterval(() => { + for (var i = 100000; --i;) { + allocs.push(new Object()); + } + }, 1); + } + function stopAllocating () { + clearInterval(intervalId); + } + + memory.on("allocations", onAlloc); + + yield memory.startRecordingAllocations({ + drainAllocationsTimeout: 10 + }); + + yield waitUntil(() => eventsFired > 5); + ok(eventsFired > 5, "Some allocation events fired without allocating much via auto drain"); + yield memory.stopRecordingAllocations(); + + // Set a really high auto drain timer so we can test if + // it fires on GC + eventsFired = 0; + var startTime = performance.now(); + var drainTimer = 1000000; + yield memory.startRecordingAllocations({ + drainAllocationsTimeout: drainTimer + }); + + startAllocating(); + yield waitUntil(() => { + Cu.forceGC(); + return eventsFired > 1; + }); + stopAllocating(); + ok(performance.now() - drainTimer < startTime, "Allocation events fired on GC before timer"); + yield memory.stopRecordingAllocations(); + + memory.off("allocations", onAlloc); + yield memory.detach(); + destroyServerAndFinish(client); + }); +}; +</script> +</pre> +</body> +</html> |