diff -r 000000000000 -r 6474c204b198 browser/devtools/styleinspector/test/browser_computedview_matched-selectors_01.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/styleinspector/test/browser_computedview_matched-selectors_01.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Checking selector counts, matched rules and titles in the computed-view
+
+const {PropertyView} = devtools.require("devtools/styleinspector/computed-view");
+const TEST_URI = TEST_URL_ROOT + "doc_matched_selectors.html";
+
+let test = asyncTest(function*() {
+  yield addTab(TEST_URI);
+  let {toolbox, inspector, view} = yield openComputedView();
+
+  yield selectNode("#test", inspector);
+  yield testMatchedSelectors(view);
+});
+
+function* testMatchedSelectors(view) {
+  info("checking selector counts, matched rules and titles");
+
+  is(getNode("#test"), view.viewedElement.rawNode(),
+      "style inspector node matches the selected node");
+
+  let propertyView = new PropertyView(view, "color");
+  propertyView.buildMain();
+  propertyView.buildSelectorContainer();
+  propertyView.matchedExpanded = true;
+
+  yield propertyView.refreshMatchedSelectors();
+
+  let numMatchedSelectors = propertyView.matchedSelectors.length;
+  is(numMatchedSelectors, 6, "CssLogic returns the correct number of matched selectors for div");
+  is(propertyView.hasMatchedSelectors, true, "hasMatchedSelectors returns true");
+}