1 files changed, 50 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-details-05-preserve-view.js b/devtools/client/performance/test/browser_perf-details-05-preserve-view.js
new file mode 100644
index 000000000..00c71db7e
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-details-05-preserve-view.js
@@ -0,0 +1,50 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the same details view is selected after recordings are cleared
+ * and a new recording starts.
+ */
+
+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, PerformanceController, DetailsView, JsCallTreeView } = panel.panelWin;
+
+  yield startRecording(panel);
+  yield stopRecording(panel);
+
+  let selected = once(DetailsView, EVENTS.UI_DETAILS_VIEW_SELECTED);
+  let rendered = once(JsCallTreeView, EVENTS.UI_JS_CALL_TREE_RENDERED);
+  yield DetailsView.selectView("js-calltree");
+  yield selected;
+  yield rendered;
+
+  ok(DetailsView.isViewSelected(JsCallTreeView),
+    "The js calltree view is now selected in the details view.");
+
+  let cleared = once(PerformanceController, EVENTS.RECORDING_SELECTED,
+                     { expectedArgs: { "1": null } });
+  yield PerformanceController.clearRecordings();
+  yield cleared;
+
+  yield startRecording(panel);
+  yield stopRecording(panel, {
+    expectedViewClass: "JsCallTreeView",
+    expectedViewEvent: "UI_JS_CALL_TREE_RENDERED"
+  });
+
+  ok(DetailsView.isViewSelected(JsCallTreeView),
+    "The js calltree view is still selected in the details view.");
+
+  yield teardownToolboxAndRemoveTab(panel);
+});