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Bug 1131326 - Part 1: Test Debugger.Memory.prototype.allocationsLogOverflowed. r=shu

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Nick Fitzgerald 2015-02-10 12:06:00 -05:00
parent d1fa873f36
commit 027fbec625
1 changed files with 24 additions and 0 deletions
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js/src/jit-test/tests/debug/Memory-allocationsLogOverflowed-01.js Normal file
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// Test basic usage of `Debugger.Memory.prototype.allocationsLogOverflowed`.
const root = newGlobal();
const dbg = new Debugger(root);
dbg.memory.trackingAllocationSites = true;
dbg.memory.maxAllocationsLogLength = 1;
root.eval("(" + function immediate() {
// Allocate more than the max log length.
this.objs = [{}, {}, {}, {}];
} + "());");
// The log should have overflowed.
assertEq(dbg.memory.allocationsLogOverflowed, true);
// Once drained, the flag should be reset.
const allocs = dbg.memory.drainAllocationsLog();
assertEq(dbg.memory.allocationsLogOverflowed, false);
// If we keep allocations under the max log length, then we shouldn't have
// overflowed.
dbg.memory.maxAllocationsLogLength = 10000;
root.eval("this.objs = [{}, {}, {}, {}];");
assertEq(dbg.memory.allocationsLogOverflowed, false);