diff -r 000000000000 -r 6474c204b198 browser/devtools/canvasdebugger/test/browser_canvas-frontend-call-highlight.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/canvasdebugger/test/browser_canvas-frontend-call-highlight.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests if certain function calls are properly highlighted in the UI.
+ */
+
+function ifTestingSupported() {
+  let [target, debuggee, panel] = yield initCanavsDebuggerFrontend(SIMPLE_CANVAS_URL);
+  let { window, $, EVENTS, SnapshotsListView, CallsListView } = panel.panelWin;
+
+  yield reload(target);
+
+  let recordingFinished = once(window, EVENTS.SNAPSHOT_RECORDING_FINISHED);
+  let callListPopulated = once(window, EVENTS.CALL_LIST_POPULATED);
+  SnapshotsListView._onRecordButtonClick();
+  yield promise.all([recordingFinished, callListPopulated]);
+
+  is(CallsListView.itemCount, 8,
+    "All the function calls should now be displayed in the UI.");
+
+  is($(".call-item-view", CallsListView.getItemAtIndex(0).target).hasAttribute("draw-call"), true,
+    "The first item's node should have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(1).target).hasAttribute("draw-call"), false,
+    "The second item's node should not have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(2).target).hasAttribute("draw-call"), true,
+    "The third item's node should have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(3).target).hasAttribute("draw-call"), false,
+    "The fourth item's node should not have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(4).target).hasAttribute("draw-call"), true,
+    "The fifth item's node should have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(5).target).hasAttribute("draw-call"), false,
+    "The sixth item's node should not have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(6).target).hasAttribute("draw-call"), true,
+    "The seventh item's node should have a draw-call attribute.");
+  is($(".call-item-view", CallsListView.getItemAtIndex(7).target).hasAttribute("draw-call"), false,
+    "The eigth item's node should not have a draw-call attribute.");
+
+  yield teardown(panel);
+  finish();
+}