1 files changed, 40 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-details-render-02-js-flamegraph.js b/devtools/client/performance/test/browser_perf-details-render-02-js-flamegraph.js
new file mode 100644
index 000000000..e5e74fc7c
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-details-render-02-js-flamegraph.js
@@ -0,0 +1,40 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the js flamegraph view renders content after recording.
+ */
+
+const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
+const { initPerformanceInNewTab, teardownToolboxAndRemoveTab } = require("devtools/client/performance/test/helpers/panel-utils");
+const { startRecording, stopRecording } = require("devtools/client/performance/test/helpers/actions");
+const { once } = require("devtools/client/performance/test/helpers/event-utils");
+
+add_task(function* () {
+  let { panel } = yield initPerformanceInNewTab({
+    url: SIMPLE_URL,
+    win: window
+  });
+
+  let { EVENTS, DetailsView, JsFlameGraphView } = panel.panelWin;
+
+  yield startRecording(panel);
+  yield stopRecording(panel);
+
+  let rendered = once(JsFlameGraphView, EVENTS.UI_JS_FLAMEGRAPH_RENDERED);
+  yield DetailsView.selectView("js-flamegraph");
+  yield rendered;
+
+  ok(true, "JsFlameGraphView rendered after recording is stopped.");
+
+  yield startRecording(panel);
+  yield stopRecording(panel, {
+    expectedViewClass: "JsFlameGraphView",
+    expectedViewEvent: "UI_JS_FLAMEGRAPH_RENDERED"
+  });
+
+  ok(true, "JsFlameGraphView rendered again after recording completed a second time.");
+
+  yield teardownToolboxAndRemoveTab(panel);
+});