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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
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+++ b/devtools/client/performance/test/browser_perf-details-02-utility-fun.js
@@ -0,0 +1,75 @@
+/* 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(async function() {
+  const { panel } = await initPerformanceInNewTab({
+    url: SIMPLE_URL,
+    win: window,
+  });
+
+  const {
+    EVENTS,
+    DetailsView,
+    WaterfallView,
+    JsCallTreeView,
+    JsFlameGraphView,
+  } = panel.panelWin;
+
+  await startRecording(panel);
+  await 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);
+  await DetailsView.selectView("js-calltree");
+  await 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);
+  await DetailsView.selectView("js-flamegraph");
+  await 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);
+  await DetailsView.selectView("waterfall");
+  await selected;
+
+  ok(
+    DetailsView.isViewSelected(WaterfallView),
+    "The waterfall view is now selected in the details view."
+  );
+
+  await teardownToolboxAndRemoveTab(panel);
+});