1 files changed, 57 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_perf-01.js b/devtools/server/tests/browser/browser_perf-01.js
new file mode 100644
index 0000000000..96afc8151e
--- /dev/null
+++ b/devtools/server/tests/browser/browser_perf-01.js
@@ -0,0 +1,57 @@
+/* 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";
+
+// This test is at the edge of timing out, probably because of LUL
+// initialization on Linux. This is also happening only once, which is why only
+// this test needs it: for other tests LUL is already initialized because
+// they're running in the same Firefox instance.
+// See also bug 1635442.
+requestLongerTimeout(2);
+
+/**
+ * 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.");
+
+  // Start the profiler.
+  const profilerStarted = once(front, "profiler-started");
+  await front.startProfiler();
+  await profilerStarted;
+  is(await front.isActive(), true, "The profiler was started.");
+
+  // Stop the profiler and assert the results.
+  const profilerStopped1 = once(front, "profiler-stopped");
+  const profile = await front.getProfileAndStopProfiler();
+  await profilerStopped1;
+  is(await front.isActive(), false, "The profiler was stopped.");
+  ok("threads" in profile, "The actor was used to record a profile.");
+
+  // Restart the profiler.
+  await front.startProfiler();
+  is(await front.isActive(), true, "The profiler was re-started.");
+
+  // Stop and discard.
+  const profilerStopped2 = once(front, "profiler-stopped");
+  await front.stopProfilerAndDiscardProfile();
+  await profilerStopped2;
+  is(
+    await front.isActive(),
+    false,
+    "The profiler was stopped and the profile discarded."
+  );
+
+  // Clean up.
+  await front.destroy();
+  await client.close();
+});