1 files changed, 46 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_telemetry_basic.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_telemetry_basic.js
new file mode 100644
index 0000000000..5970d6a70d
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_telemetry_basic.js
@@ -0,0 +1,46 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/* import-globals-from helper-telemetry.js */
+Services.scriptloader.loadSubScript(
+  CHROME_URL_ROOT + "helper-telemetry.js",
+  this
+);
+
+/**
+ * Check that telemetry events are recorded when opening and closing about debugging.
+ */
+add_task(async function () {
+  setupTelemetryTest();
+
+  const { tab } = await openAboutDebugging();
+
+  const openEvents = readAboutDebuggingEvents().filter(
+    e => e.method === "open_adbg"
+  );
+  is(
+    openEvents.length,
+    1,
+    "Exactly one open event was logged for about:debugging"
+  );
+  const sessionId = openEvents[0].extras.session_id;
+  ok(!isNaN(sessionId), "Open event has a valid session id");
+
+  await removeTab(tab);
+
+  const closeEvents = readAboutDebuggingEvents().filter(
+    e => e.method === "close_adbg"
+  );
+  is(
+    closeEvents.length,
+    1,
+    "Exactly one close event was logged for about:debugging"
+  );
+  is(
+    closeEvents[0].extras.session_id,
+    sessionId,
+    "Close event has the same session id as the open event"
+  );
+});