1 files changed, 34 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_HeapSnapshot_takeCensus_03.js b/dom/heapsnapshot/tests/unit/test_HeapSnapshot_takeCensus_03.js
new file mode 100644
index 000000000..25f2c3791
--- /dev/null
+++ b/dom/heapsnapshot/tests/unit/test_HeapSnapshot_takeCensus_03.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// HeapSnapshot.prototype.takeCensus behaves plausibly as we add and remove
+// debuggees.
+//
+// Ported from js/src/jit-test/tests/debug/Memory-takeCensus-03.js
+
+function run_test() {
+  var dbg = new Debugger;
+
+  var census0 = saveHeapSnapshotAndTakeCensus(dbg);
+  Census.walkCensus(census0, "census0", Census.assertAllZeros);
+
+  var g1 = newGlobal();
+  dbg.addDebuggee(g1);
+  var census1 = saveHeapSnapshotAndTakeCensus(dbg);
+  Census.walkCensus(census1, "census1", Census.assertAllNotLessThan(census0));
+
+  var g2 = newGlobal();
+  dbg.addDebuggee(g2);
+  var census2 = saveHeapSnapshotAndTakeCensus(dbg);
+  Census.walkCensus(census2, "census2", Census.assertAllNotLessThan(census1));
+
+  dbg.removeDebuggee(g2);
+  var census3 = saveHeapSnapshotAndTakeCensus(dbg);
+  Census.walkCensus(census3, "census3", Census.assertAllEqual(census1));
+
+  dbg.removeDebuggee(g1);
+  var census4 = saveHeapSnapshotAndTakeCensus(dbg);
+  Census.walkCensus(census4, "census4", Census.assertAllEqual(census0));
+
+  do_test_finished();
+}