import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test that HeapSnapshot.prototype.takeCensus finds cross compartment
// wrapper GC roots.
//
// Ported from js/src/jit-test/tests/debug/Memory-takeCensus-05.js
function run_test() {
var g = newGlobal();
var dbg = new Debugger(g);
equal("AllocationMarker" in saveHeapSnapshotAndTakeCensus(dbg).objects, false,
"No allocation markers should exist in the census.");
this.ccw = g.allocationMarker();
const census = saveHeapSnapshotAndTakeCensus(dbg);
equal(census.objects.AllocationMarker.count, 1,
"Should have one allocation marker in the census, because there " +
"is one cross-compartment wrapper referring to it.");
do_test_finished();
}