1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Memory-takeCensus-12.js b/js/src/jit-test/tests/debug/Memory-takeCensus-12.js
new file mode 100644
index 0000000000..cb4f64ebc5
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Memory-takeCensus-12.js
@@ -0,0 +1,61 @@
+// Sanity test that we can accumulate matching individuals in a bucket.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+
+var bucket = { by: "bucket" };
+var count = { by: "count", count: true, bytes: false };
+
+var all = dbg.memory.takeCensus({ breakdown: bucket });
+var allCount = dbg.memory.takeCensus({ breakdown: count }).count;
+
+var coarse = dbg.memory.takeCensus({
+  breakdown: {
+    by: "coarseType",
+    objects: bucket,
+    strings: bucket,
+    scripts: bucket,
+    other: bucket
+  }
+});
+var coarseCount = dbg.memory.takeCensus({
+  breakdown: {
+    by: "coarseType",
+    objects: count,
+    strings: count,
+    scripts: count,
+    other: count
+  }
+});
+
+assertEq(all.length > 0, true);
+assertEq(all.length, allCount);
+
+assertEq(coarse.objects.length > 0, true);
+assertEq(coarseCount.objects.count, coarse.objects.length);
+
+assertEq(coarse.strings.length > 0, true);
+assertEq(coarseCount.strings.count, coarse.strings.length);
+
+assertEq(coarse.scripts.length > 0, true);
+assertEq(coarseCount.scripts.count, coarse.scripts.length);
+
+assertEq(coarse.other.length > 0, true);
+assertEq(coarseCount.other.count, coarse.other.length);
+
+assertEq(all.length >= coarse.objects.length, true);
+assertEq(all.length >= coarse.strings.length, true);
+assertEq(all.length >= coarse.scripts.length, true);
+assertEq(all.length >= coarse.other.length, true);
+
+function assertIsIdentifier(id) {
+  assertEq(id, Math.floor(id));
+  assertEq(id > 0, true);
+  assertEq(id <= Math.pow(2, 48), true);
+}
+
+all.forEach(assertIsIdentifier);
+coarse.objects.forEach(assertIsIdentifier);
+coarse.strings.forEach(assertIsIdentifier);
+coarse.scripts.forEach(assertIsIdentifier);
+coarse.other.forEach(assertIsIdentifier);