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diff --git a/devtools/client/performance/test/browser_perf-telemetry-04.js b/devtools/client/performance/test/browser_perf-telemetry-04.js
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+++ b/devtools/client/performance/test/browser_perf-telemetry-04.js
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+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the performance telemetry module records events at appropriate times.
+ */
+
+const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
+const { initPerformanceInTab, initConsoleInNewTab, teardownToolboxAndRemoveTab } = require("devtools/client/performance/test/helpers/panel-utils");
+const { waitForRecordingStartedEvents, waitForRecordingStoppedEvents } = require("devtools/client/performance/test/helpers/actions");
+
+add_task(function* () {
+ let { target, console } = yield initConsoleInNewTab({
+ url: SIMPLE_URL,
+ win: window
+ });
+
+ let { panel } = yield initPerformanceInTab({ tab: target.tab });
+ let { PerformanceController } = panel.panelWin;
+
+ let telemetry = PerformanceController._telemetry;
+ let logs = telemetry.getLogs();
+ let DURATION = "DEVTOOLS_PERFTOOLS_RECORDING_DURATION_MS";
+ let CONSOLE_COUNT = "DEVTOOLS_PERFTOOLS_CONSOLE_RECORDING_COUNT";
+ let FEATURES = "DEVTOOLS_PERFTOOLS_RECORDING_FEATURES_USED";
+
+ let started = waitForRecordingStartedEvents(panel, {
+ // only emitted for manual recordings
+ skipWaitingForBackendReady: true
+ });
+ yield console.profile("rust");
+ yield started;
+
+ let stopped = waitForRecordingStoppedEvents(panel, {
+ // only emitted for manual recordings
+ skipWaitingForBackendReady: true
+ });
+ yield console.profileEnd("rust");
+ yield stopped;
+
+ is(logs[DURATION].length, 1, `There is one entry for ${DURATION}.`);
+ ok(logs[DURATION].every(d => typeof d === "number"),
+ `Every ${DURATION} entry is a number.`);
+ is(logs[CONSOLE_COUNT].length, 1, `There is one entry for ${CONSOLE_COUNT}.`);
+ is(logs[FEATURES].length, 4,
+ `There is one recording worth of entries for ${FEATURES}.`);
+
+ yield teardownToolboxAndRemoveTab(panel);
+});