1 files changed, 53 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_perf-04.js b/devtools/server/tests/browser/browser_perf-04.js
new file mode 100644
index 0000000000..9fba77d053
--- /dev/null
+++ b/devtools/server/tests/browser/browser_perf-04.js
@@ -0,0 +1,53 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+/**
+ * Run through a series of basic recording actions for the perf actor.
+ */
+add_task(async function () {
+  const { front, client } = await initPerfFront();
+
+  // Assert the initial state.
+  is(
+    await front.isSupportedPlatform(),
+    true,
+    "This test only runs on supported platforms."
+  );
+  is(await front.isActive(), false, "The profiler is not active yet.");
+
+  // Getting the active Browser ID to assert in the "profiler-started" event.
+  const win = Services.wm.getMostRecentWindow("navigator:browser");
+  const activeTabID = win.gBrowser.selectedBrowser.browsingContext.browserId;
+
+  front.once(
+    "profiler-started",
+    (entries, interval, features, duration, activeTID) => {
+      is(entries, 1024, "Should apply entries by startProfiler");
+      is(interval, 0.1, "Should apply interval by startProfiler");
+      is(typeof features, "number", "Should apply features by startProfiler");
+      is(duration, 2, "Should apply duration by startProfiler");
+      is(
+        activeTID,
+        activeTabID,
+        "Should apply active browser ID by startProfiler"
+      );
+    }
+  );
+
+  // Start the profiler.
+  await front.startProfiler({
+    entries: 1000,
+    duration: 2,
+    interval: 0.1,
+    features: ["js", "stackwalk"],
+  });
+
+  is(await front.isActive(), true, "The profiler is active.");
+
+  // clean up
+  await front.stopProfilerAndDiscardProfile();
+  await front.destroy();
+  await client.close();
+});