1 files changed, 43 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_inactive_css_xul.js b/devtools/client/inspector/rules/test/browser_rules_inactive_css_xul.js
new file mode 100644
index 0000000000..b9536f1f9e
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_inactive_css_xul.js
@@ -0,0 +1,43 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test inactive css properties in XUL documents.
+
+const TEST_URI = URL_ROOT_SSL + "doc_inactive_css_xul.xhtml";
+
+const TEST_DATA = [
+  {
+    selector: "#test-img-in-xul",
+    inactiveDeclarations: [
+      {
+        declaration: { "grid-column-gap": "5px" },
+        ruleIndex: 0,
+      },
+    ],
+    activeDeclarations: [
+      {
+        declarations: {
+          width: "10px",
+          height: "10px",
+        },
+        ruleIndex: 0,
+      },
+    ],
+  },
+];
+
+add_task(async () => {
+  await SpecialPowers.pushPermissions([
+    { type: "allowXULXBL", allow: true, context: URL_ROOT_SSL },
+  ]);
+
+  info("Open a url to a XUL document");
+  await addTab(TEST_URI);
+
+  info("Open the inspector");
+  const { inspector, view } = await openRuleView();
+
+  await runInactiveCSSTests(view, inspector, TEST_DATA);
+});