1 files changed, 33 insertions, 0 deletions
diff --git a/devtools/client/inspector/compatibility/test/browser/browser_compatibility_unsupported-browsers_all.js b/devtools/client/inspector/compatibility/test/browser/browser_compatibility_unsupported-browsers_all.js
new file mode 100644
index 0000000000..c57c805ce1
--- /dev/null
+++ b/devtools/client/inspector/compatibility/test/browser/browser_compatibility_unsupported-browsers_all.js
@@ -0,0 +1,33 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test whether the all of default browsers are unsupported.
+
+const TEST_URI = `
+  <style>
+  body {
+    user-modify: read-only;
+  }
+  </style>
+  <body></body>
+`;
+
+add_task(async function () {
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  const { inspector, selectedElementPane } = await openCompatibilityView();
+
+  info("Get the taget browsers we set as default");
+  const { targetBrowsers } = inspector.store.getState().compatibility;
+
+  info("Check the content of the issue item");
+  const expectedIssues = [
+    {
+      property: "user-modify",
+      unsupportedBrowsers: targetBrowsers,
+      url: "https://developer.mozilla.org/docs/Web/CSS/user-modify",
+    },
+  ];
+  await assertIssueList(selectedElementPane, expectedIssues);
+});