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// Test that SavedFrame instances get removed from the SavedStacks frames cache
// after a GC.
const FUZZ_FACTOR = 3;
function isAboutEq(actual, expected) {
return Math.abs(actual - expected) <= FUZZ_FACTOR;
}
var stacks = [];
(function () {
// Use an IIFE here so that we don't keep these saved stacks alive in the
// frame cache when we test that they all go away at the end of the test.
var startCount = getSavedFrameCount();
print("startCount = " + startCount);
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
stacks.push(saveStack());
gc();
var endCount = getSavedFrameCount();
print("endCount = " + endCount);
assertEq(isAboutEq(endCount - startCount, 50), true);
}());
while (stacks.length) {
stacks.pop();
}
gc();
stacks = null;
gc();
assertEq(isAboutEq(getSavedFrameCount(), 0), true);
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