diff -r 000000000000 -r 6474c204b198 browser/devtools/styleinspector/test/browser_ruleview_refresh-on-style-change.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/styleinspector/test/browser_ruleview_refresh-on-style-change.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* 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";
+
+// Test that the rule view refreshes when the current node has its style
+// changed
+
+const TESTCASE_URI = 'data:text/html;charset=utf-8,' +
+                     '<div id="testdiv" style="font-size:10px;">Test div!</div>';
+
+let test = asyncTest(function*() {
+  yield addTab(TESTCASE_URI);
+
+  Services.prefs.setCharPref("devtools.defaultColorUnit", "name");
+
+  info("Getting the test node");
+  let div = getNode("#testdiv");
+
+  info("Opening the rule view and selecting the test node");
+  let {toolbox, inspector, view} = yield openRuleView();
+  yield selectNode(div, inspector);
+
+  let fontSize = getRuleViewPropertyValue(view, "element", "font-size");
+  is(fontSize, "10px", "The rule view shows the right font-size");
+
+  info("Changing the node's style and waiting for the update");
+  let onUpdated = inspector.once("rule-view-refreshed");
+  div.style.cssText = "font-size: 3em; color: lightgoldenrodyellow; text-align: right; text-transform: uppercase";
+  yield onUpdated;
+
+  let textAlign = getRuleViewPropertyValue(view, "element", "text-align");
+  is(textAlign, "right", "The rule view shows the new text align.");
+  let color = getRuleViewPropertyValue(view, "element", "color");
+  is(color, "lightgoldenrodyellow", "The rule view shows the new color.")
+  let fontSize = getRuleViewPropertyValue(view, "element", "font-size");
+  is(fontSize, "3em", "The rule view shows the new font size.");
+  let textTransform = getRuleViewPropertyValue(view, "element", "text-transform");
+  is(textTransform, "uppercase", "The rule view shows the new text transform.");
+});