1 files changed, 60 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/xpcshell/test_ext_unknown_permissions.js b/toolkit/components/extensions/test/xpcshell/test_ext_unknown_permissions.js
new file mode 100644
index 0000000000..aa4a309a52
--- /dev/null
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_unknown_permissions.js
@@ -0,0 +1,60 @@
+"use strict";
+
+// This test expects and checks warnings for unknown permissions.
+ExtensionTestUtils.failOnSchemaWarnings(false);
+
+add_task(async function test_unknown_permissions() {
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      permissions: [
+        "activeTab",
+        "fooUnknownPermission",
+        "http://*/",
+        "chrome://favicon/",
+      ],
+      optional_permissions: ["chrome://favicon/", "https://example.com/"],
+    },
+  });
+
+  let { messages } = await promiseConsoleOutput(() => extension.startup());
+
+  const { WebExtensionPolicy } = Cu.getGlobalForObject(
+    ChromeUtils.importESModule("resource://gre/modules/Extension.sys.mjs")
+  );
+
+  let policy = WebExtensionPolicy.getByID(extension.id);
+  Assert.deepEqual(Array.from(policy.permissions).sort(), ["activeTab"]);
+
+  Assert.deepEqual(extension.extension.manifest.optional_permissions, [
+    "https://example.com/",
+  ]);
+
+  ok(
+    messages.some(message =>
+      /Error processing permissions\.1: Value "fooUnknownPermission" must/.test(
+        message
+      )
+    ),
+    'Got expected error for "fooUnknownPermission"'
+  );
+
+  ok(
+    messages.some(message =>
+      /Error processing permissions\.3: Value "chrome:\/\/favicon\/" must/.test(
+        message
+      )
+    ),
+    'Got expected error for "chrome://favicon/"'
+  );
+
+  ok(
+    messages.some(message =>
+      /Error processing optional_permissions\.0: Value "chrome:\/\/favicon\/" must/.test(
+        message
+      )
+    ),
+    "Got expected error from optional_permissions"
+  );
+
+  await extension.unload();
+});