1 files changed, 52 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_edit-property_06.js b/devtools/client/inspector/rules/test/browser_rules_edit-property_06.js
new file mode 100644
index 000000000..95211f1d0
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_edit-property_06.js
@@ -0,0 +1,52 @@
+/* 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";
+
+// Tests that editing a property's priority is behaving correctly, and disabling
+// and editing the property will re-enable the property.
+
+const TEST_URI = `
+  <style type='text/css'>
+  body {
+    background-color: green !important;
+  }
+  body {
+    background-color: red;
+  }
+  </style>
+`;
+
+add_task(function* () {
+  yield addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  let {inspector, view} = yield openRuleView();
+  yield selectNode("body", inspector);
+
+  let rule = getRuleViewRuleEditor(view, 1).rule;
+  let prop = rule.textProps[0];
+
+  is((yield getComputedStyleProperty("body", null, "background-color")),
+    "rgb(0, 128, 0)", "green background color is set.");
+
+  yield setProperty(view, prop, "red !important");
+
+  is(prop.editor.valueSpan.textContent, "red !important",
+    "'red !important' property value is correctly set.");
+  is((yield getComputedStyleProperty("body", null, "background-color")),
+    "rgb(255, 0, 0)", "red background color is set.");
+
+  info("Disabling red background color property");
+  yield togglePropStatus(view, prop);
+
+  is((yield getComputedStyleProperty("body", null, "background-color")),
+    "rgb(0, 128, 0)", "green background color is set.");
+
+  yield setProperty(view, prop, "red");
+
+  is(prop.editor.valueSpan.textContent, "red",
+    "'red' property value is correctly set.");
+  ok(prop.enabled, "red background-color property is enabled.");
+  is((yield getComputedStyleProperty("body", null, "background-color")),
+    "rgb(0, 128, 0)", "green background color is set.");
+});