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diff --git a/devtools/server/tests/mochitest/test_memory_allocations_04.html b/devtools/server/tests/mochitest/test_memory_allocations_04.html new file mode 100644 index 000000000..5568736d3 --- /dev/null +++ b/devtools/server/tests/mochitest/test_memory_allocations_04.html @@ -0,0 +1,60 @@ +<!DOCTYPE HTML> +<html> +<!-- +Bug 1068171 - Test controlling the memory actor's allocation sampling probability. +--> +<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 = []; + function allocator() { + for (var i = 0; i < 100; i++) { + allocs.push({}); + } + } + + var testProbability = Task.async(function* (p, expected) { + info("probability = " + p); + yield memory.startRecordingAllocations({ + probability: p + }); + allocator(); + var response = yield memory.getAllocations(); + yield memory.stopRecordingAllocations(); + return response.allocations.length; + }); + + is((yield testProbability(0.0)), 0, + "With probability = 0.0, we shouldn't get any allocations."); + + ok((yield testProbability(1.0)) >= 100, + "With probability = 1.0, we should get all 100 allocations (plus " + + "whatever allocations the actor and SpiderMonkey make)."); + + // We don't test any other probabilities because the test would be + // non-deterministic. We don't have a way to control the PRNG like we do in + // jit-tests + // (js/src/jit-test/tests/debug/Memory-allocationsSamplingProbability-*.js). + + yield memory.detach(); + destroyServerAndFinish(client); + }); +}; +</script> +</pre> +</body> +</html> |