forked from mirrors/gecko-dev
37 lines
1,010 B
JavaScript
37 lines
1,010 B
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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// Test that HeapSnapshot.prototype.takeCensus finds GC roots that are on the
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// stack.
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//
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// Ported from js/src/jit-test/tests/debug/Memory-takeCensus-04.js
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function run_test() {
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let g = newGlobal();
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let dbg = new Debugger(g);
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g.eval(`
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function withAllocationMarkerOnStack(f) {
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(function () {
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var onStack = allocationMarker();
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f();
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}());
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}
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`);
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equal("AllocationMarker" in saveHeapSnapshotAndTakeCensus(dbg).objects, false,
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"There shouldn't exist any allocation markers in the census.");
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let allocationMarkerCount;
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g.withAllocationMarkerOnStack(() => {
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const census = saveHeapSnapshotAndTakeCensus(dbg);
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allocationMarkerCount = census.objects.AllocationMarker.count;
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});
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equal(allocationMarkerCount, 1,
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"Should have one allocation marker in the census, because there " +
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"was one on the stack.");
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do_test_finished();
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}
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