1 files changed, 31 insertions, 0 deletions
diff --git a/devtools/client/inspector/test/browser_inspector_highlighter-01.js b/devtools/client/inspector/test/browser_inspector_highlighter-01.js
new file mode 100644
index 000000000..946b8c3c8
--- /dev/null
+++ b/devtools/client/inspector/test/browser_inspector_highlighter-01.js
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// Test that hovering over nodes in the markup-view shows the highlighter over
+// those nodes
+add_task(function* () {
+  info("Loading the test document and opening the inspector");
+  let {toolbox, inspector, testActor} = yield openInspectorForURL(
+    "data:text/html;charset=utf-8,<h1>foo</h1><span>bar</span>");
+
+  let isVisible = yield testActor.isHighlighting(toolbox);
+  ok(!isVisible, "The highlighter is hidden by default");
+
+  info("Selecting the test node");
+  yield selectNode("span", inspector);
+  let container = yield getContainerForSelector("h1", inspector);
+
+  let onHighlighterReady = toolbox.once("highlighter-ready");
+  EventUtils.synthesizeMouseAtCenter(container.tagLine, {type: "mousemove"},
+                                     inspector.markup.doc.defaultView);
+  yield onHighlighterReady;
+
+  isVisible = yield testActor.isHighlighting();
+  ok(isVisible, "The highlighter is shown on a markup container hover");
+
+  ok((yield testActor.assertHighlightedNode("h1")),
+     "The highlighter highlights the right node");
+});