1 files changed, 86 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_telemetry_filters_changed.js b/devtools/client/webconsole/test/browser/browser_webconsole_telemetry_filters_changed.js
new file mode 100644
index 0000000000..95ff2e8e51
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_telemetry_filters_changed.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests the filters_changed telemetry event.
+
+"use strict";
+
+const TEST_URI = `data:text/html,<!DOCTYPE html><meta charset=utf8><script>
+  console.log("test message");
+</script>`;
+
+const ALL_CHANNELS = Ci.nsITelemetry.DATASET_ALL_CHANNELS;
+
+add_task(async function () {
+  // Let's reset the counts.
+  Services.telemetry.clearEvents();
+
+  // Ensure no events have been logged
+  const snapshot = Services.telemetry.snapshotEvents(ALL_CHANNELS, true);
+  ok(!snapshot.parent, "No events have been logged for the main process");
+
+  const hud = await openNewTabAndConsole(TEST_URI);
+
+  info("Click on the 'log' filter");
+  await setFilterState(hud, {
+    log: false,
+  });
+
+  checkTelemetryEvent({
+    trigger: "log",
+    active: "error,warn,info,debug",
+    inactive: "text,log,css,net,netxhr",
+  });
+
+  info("Click on the 'netxhr' filter");
+  await setFilterState(hud, {
+    netxhr: true,
+  });
+
+  checkTelemetryEvent({
+    trigger: "netxhr",
+    active: "error,warn,info,debug,netxhr",
+    inactive: "text,log,css,net",
+  });
+
+  info("Filter the output using the text filter input");
+  await setFilterState(hud, { text: "no match" });
+
+  checkTelemetryEvent({
+    trigger: "text",
+    active: "text,error,warn,info,debug,netxhr",
+    inactive: "log,css,net",
+  });
+});
+
+function checkTelemetryEvent(expectedEvent) {
+  const events = getFiltersChangedEventsExtra();
+  is(events.length, 1, "There was only 1 event logged");
+  const [event] = events;
+  ok(event.session_id > 0, "There is a valid session_id in the logged event");
+  const f = e => JSON.stringify(e, null, 2);
+  is(
+    f(event),
+    f({
+      ...expectedEvent,
+      session_id: event.session_id,
+    }),
+    "The event has the expected data"
+  );
+}
+
+function getFiltersChangedEventsExtra() {
+  // Retrieve and clear telemetry events.
+  const snapshot = Services.telemetry.snapshotEvents(ALL_CHANNELS, true);
+
+  const filtersChangedEvents = snapshot.parent.filter(
+    event =>
+      event[1] === "devtools.main" &&
+      event[2] === "filters_changed" &&
+      event[3] === "webconsole"
+  );
+
+  // Since we already know we have the correct event, we only return the `extra` field
+  // that was passed to it (which is event[5] here).
+  return filtersChangedEvents.map(event => event[5]);
+}