1 files changed, 79 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-calltree-js-events.js b/devtools/client/performance/test/browser_perf-calltree-js-events.js
new file mode 100644
index 0000000000..b9651bba49
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-calltree-js-events.js
@@ -0,0 +1,79 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the call tree up/down events work for js calltrees.
+ */
+
+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 {
+  synthesizeProfile,
+} = require("devtools/client/performance/test/helpers/synth-utils");
+const {
+  once,
+} = require("devtools/client/performance/test/helpers/event-utils");
+const {
+  ThreadNode,
+} = require("devtools/client/performance/modules/logic/tree-model");
+
+add_task(async function() {
+  const { panel } = await initPerformanceInNewTab({
+    url: SIMPLE_URL,
+    win: window,
+  });
+
+  const {
+    EVENTS,
+    $,
+    DetailsView,
+    OverviewView,
+    JsCallTreeView,
+  } = panel.panelWin;
+
+  await startRecording(panel);
+  await stopRecording(panel);
+
+  const rendered = once(JsCallTreeView, EVENTS.UI_JS_CALL_TREE_RENDERED);
+  await DetailsView.selectView("js-calltree");
+  await rendered;
+
+  // Mock the profile used so we can get a deterministic tree created.
+  const profile = synthesizeProfile();
+  const threadNode = new ThreadNode(
+    profile.threads[0],
+    OverviewView.getTimeInterval()
+  );
+  JsCallTreeView._populateCallTree(threadNode);
+  JsCallTreeView.emit(EVENTS.UI_JS_CALL_TREE_RENDERED);
+
+  const firstTreeItem = $("#js-calltree-view .call-tree-item");
+
+  // DE-XUL: There are focus issues with XUL. Focus first, then synthesize the clicks
+  // so that keyboard events work correctly.
+  firstTreeItem.focus();
+
+  let count = 0;
+  const onFocus = () => count++;
+  JsCallTreeView.on("focus", onFocus);
+
+  await click(firstTreeItem);
+
+  key("VK_DOWN");
+  key("VK_DOWN");
+  key("VK_DOWN");
+  key("VK_DOWN");
+
+  JsCallTreeView.off("focus", onFocus);
+  is(count, 4, "Several focus events are fired for the calltree.");
+
+  await teardownToolboxAndRemoveTab(panel);
+});