1 files changed, 59 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-details-02-utility-fun.js b/devtools/client/performance/test/browser_perf-details-02-utility-fun.js
new file mode 100644
index 000000000..5914742dd
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+++ b/devtools/client/performance/test/browser_perf-details-02-utility-fun.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the details view utility functions work as advertised.
+ */
+
+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,
+    WaterfallView,
+    JsCallTreeView,
+    JsFlameGraphView
+  } = panel.panelWin;
+
+  yield startRecording(panel);
+  yield stopRecording(panel);
+
+  ok(DetailsView.isViewSelected(WaterfallView),
+    "The waterfall view is selected by default in the details view.");
+
+  // Select js calltree view.
+  let selected = once(DetailsView, EVENTS.UI_DETAILS_VIEW_SELECTED);
+  yield DetailsView.selectView("js-calltree");
+  yield selected;
+
+  ok(DetailsView.isViewSelected(JsCallTreeView),
+    "The js calltree view is now selected in the details view.");
+
+  // Select js flamegraph view.
+  selected = once(DetailsView, EVENTS.UI_DETAILS_VIEW_SELECTED);
+  yield DetailsView.selectView("js-flamegraph");
+  yield selected;
+
+  ok(DetailsView.isViewSelected(JsFlameGraphView),
+    "The js flamegraph view is now selected in the details view.");
+
+  // Select waterfall view.
+  selected = once(DetailsView, EVENTS.UI_DETAILS_VIEW_SELECTED);
+  yield DetailsView.selectView("waterfall");
+  yield selected;
+
+  ok(DetailsView.isViewSelected(WaterfallView),
+    "The waterfall view is now selected in the details view.");
+
+  yield teardownToolboxAndRemoveTab(panel);
+});