1 files changed, 26 insertions, 0 deletions
diff --git a/devtools/shared/heapsnapshot/tests/xpcshell/test_HeapAnalyses_takeCensus_02.js b/devtools/shared/heapsnapshot/tests/xpcshell/test_HeapAnalyses_takeCensus_02.js
new file mode 100644
index 0000000000..5b1dcefe03
--- /dev/null
+++ b/devtools/shared/heapsnapshot/tests/xpcshell/test_HeapAnalyses_takeCensus_02.js
@@ -0,0 +1,26 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test that the HeapAnalyses{Client,Worker} can take censuses with breakdown
+// options.
+
+add_task(async function () {
+  const client = new HeapAnalysesClient();
+
+  const snapshotFilePath = saveNewHeapSnapshot();
+  await client.readHeapSnapshot(snapshotFilePath);
+  ok(true, "Should have read the heap snapshot");
+
+  const { report } = await client.takeCensus(snapshotFilePath, {
+    breakdown: { by: "count", count: true, bytes: true },
+  });
+
+  ok(report, "Should get a report");
+  equal(typeof report, "object", "report should be an object");
+
+  ok(report.count);
+  ok(report.bytes);
+
+  client.destroy();
+});