99 lines
3.3 KiB
HTML
99 lines
3.3 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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Bug 1067491 - Test recording allocations.
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-->
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<head>
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<meta charset="utf-8">
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<title>Memory monitoring actor test</title>
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
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</head>
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<body>
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<pre id="test">
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<script src="memory-helpers.js" type="application/javascript;version=1.8"></script>
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<script>
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window.onload = function() {
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SimpleTest.waitForExplicitFinish();
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Task.spawn(function* () {
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var { memory, client } = yield startServerAndGetSelectedTabMemory();
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yield memory.attach();
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yield memory.startRecordingAllocations();
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ok(true, "Can start recording allocations");
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// Allocate some objects.
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var alloc1, alloc2, alloc3;
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(function outer() {
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(function middle() {
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(function inner() {
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alloc1 = {}; alloc1.line = Error().lineNumber;
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alloc2 = []; alloc2.line = Error().lineNumber;
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alloc3 = new function() {}; alloc3.line = Error().lineNumber;
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}());
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}());
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}());
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var response = yield memory.getAllocations();
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yield memory.stopRecordingAllocations();
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ok(true, "Can stop recording allocations");
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// Filter out allocations by library and test code, and get only the
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// allocations that occurred in our test case above.
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function isTestAllocation(alloc) {
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var frame = response.frames[alloc];
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return frame
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&& frame.functionDisplayName === "inner"
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&& (frame.line === alloc1.line
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|| frame.line === alloc2.line
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|| frame.line === alloc3.line);
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}
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var testAllocations = response.allocations.filter(isTestAllocation);
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ok(testAllocations.length >= 3,
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"Should find our 3 test allocations (plus some allocations for the error "
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+ "objects used to get line numbers)");
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// For each of the test case's allocations, ensure that the parent frame
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// indices are correct. Also test that we did get an allocation at each
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// line we expected (rather than a bunch on the first line and none on the
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// others, etc).
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var expectedLines = new Set([alloc1.line, alloc2.line, alloc3.line]);
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for (var alloc of testAllocations) {
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var innerFrame = response.frames[alloc];
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ok(innerFrame, "Should get the inner frame");
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is(innerFrame.functionDisplayName, "inner");
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expectedLines.delete(innerFrame.line);
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var middleFrame = response.frames[innerFrame.parent];
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ok(middleFrame, "Should get the middle frame");
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is(middleFrame.functionDisplayName, "middle");
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var outerFrame = response.frames[middleFrame.parent];
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ok(outerFrame, "Should get the outer frame");
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is(outerFrame.functionDisplayName, "outer");
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// Not going to test the rest of the frames because they are Task.jsm
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// and promise frames and it gets gross. Plus, I wouldn't want this test
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// to start failing if they changed their implementations in a way that
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// added or removed stack frames here.
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}
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is(expectedLines.size, 0,
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"Should have found all the expected lines");
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yield memory.detach();
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destroyServerAndFinish(client);
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});
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};
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</script>
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</pre>
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</body>
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</html>
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