1 files changed, 44 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-tree-abstract-04.js b/devtools/client/performance/test/browser_perf-tree-abstract-04.js
new file mode 100644
index 0000000000..fe5acb7be8
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-tree-abstract-04.js
@@ -0,0 +1,44 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the treeview expander arrow doesn't react to dblclick events.
+ */
+
+const {
+  appendAndWaitForPaint,
+} = require("devtools/client/performance/test/helpers/dom-utils");
+const {
+  synthesizeCustomTreeClass,
+} = require("devtools/client/performance/test/helpers/synth-utils");
+const {
+  once,
+} = require("devtools/client/performance/test/helpers/event-utils");
+
+add_task(async function() {
+  const { MyCustomTreeItem, myDataSrc } = synthesizeCustomTreeClass();
+
+  const container = document.createXULElement("vbox");
+  await appendAndWaitForPaint(gBrowser.selectedBrowser.parentNode, container);
+
+  // Populate the tree and test the root item...
+
+  const treeRoot = new MyCustomTreeItem(myDataSrc, { parent: null });
+  treeRoot.attachTo(container);
+
+  const originalTreeRootExpandedState = treeRoot.expanded;
+  info("Double clicking on the root item arrow and waiting for focus event.");
+
+  const receivedFocusEvent = once(treeRoot, "focus");
+  await dblclick(treeRoot.target.querySelector(".arrow"));
+  await receivedFocusEvent;
+
+  is(
+    treeRoot.expanded,
+    originalTreeRootExpandedState,
+    "A double click on the arrow was ignored."
+  );
+
+  container.remove();
+});