1 files changed, 33 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_markers-cycle-collection.js b/devtools/server/tests/browser/browser_markers-cycle-collection.js
new file mode 100644
index 000000000..dc33375f2
--- /dev/null
+++ b/devtools/server/tests/browser/browser_markers-cycle-collection.js
@@ -0,0 +1,33 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test that we get "nsCycleCollector::Collect" and
+ * "nsCycleCollector::ForgetSkippable" markers when we force cycle collection.
+ */
+
+const { PerformanceFront } = require("devtools/shared/fronts/performance");
+
+add_task(function* () {
+  // This test runs very slowly on linux32 debug EC2 instances.
+  requestLongerTimeout(2);
+
+  let browser = yield addTab(MAIN_DOMAIN + "doc_force_cc.html");
+  let doc = browser.contentDocument;
+
+  initDebuggerServer();
+  let client = new DebuggerClient(DebuggerServer.connectPipe());
+  let form = yield connectDebuggerClient(client);
+  let front = PerformanceFront(client, form);
+  yield front.connect();
+  let rec = yield front.startRecording({ withMarkers: true });
+
+  let markers = yield waitForMarkerType(front, ["nsCycleCollector::Collect", "nsCycleCollector::ForgetSkippable"]);
+  yield front.stopRecording(rec);
+
+  ok(markers.some(m => m.name === "nsCycleCollector::Collect"), "got some nsCycleCollector::Collect markers");
+  ok(markers.some(m => m.name === "nsCycleCollector::ForgetSkippable"), "got some nsCycleCollector::Collect markers");
+
+  yield client.close();
+  gBrowser.removeCurrentTab();
+});