1 files changed, 85 insertions, 0 deletions
diff --git a/browser/components/extensions/test/xpcshell/test_ext_manifest_permissions.js b/browser/components/extensions/test/xpcshell/test_ext_manifest_permissions.js
new file mode 100644
index 0000000000..fed7af5d5b
--- /dev/null
+++ b/browser/components/extensions/test/xpcshell/test_ext_manifest_permissions.js
@@ -0,0 +1,85 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+/* globals chrome */
+
+Services.prefs.setBoolPref("extensions.manifestV3.enabled", true);
+
+async function testPermission(options) {
+  function background(bgOptions) {
+    browser.test.sendMessage("typeof-namespace", {
+      browser: typeof browser[bgOptions.namespace],
+      chrome: typeof chrome[bgOptions.namespace],
+    });
+  }
+
+  let extensionDetails = {
+    background: `(${background})(${JSON.stringify(options)})`,
+  };
+
+  let extension = ExtensionTestUtils.loadExtension(extensionDetails);
+
+  await extension.startup();
+
+  let types = await extension.awaitMessage("typeof-namespace");
+  equal(
+    types.browser,
+    "undefined",
+    `Type of browser.${options.namespace} without manifest entry`
+  );
+  equal(
+    types.chrome,
+    "undefined",
+    `Type of chrome.${options.namespace} without manifest entry`
+  );
+
+  await extension.unload();
+
+  extensionDetails.manifest = options.manifest;
+  extension = ExtensionTestUtils.loadExtension(extensionDetails);
+
+  await extension.startup();
+
+  types = await extension.awaitMessage("typeof-namespace");
+  equal(
+    types.browser,
+    "object",
+    `Type of browser.${options.namespace} with manifest entry`
+  );
+  equal(
+    types.chrome,
+    "object",
+    `Type of chrome.${options.namespace} with manifest entry`
+  );
+
+  await extension.unload();
+}
+
+add_task(async function test_action() {
+  await testPermission({
+    namespace: "action",
+    manifest: {
+      manifest_version: 3,
+      action: {},
+    },
+  });
+});
+
+add_task(async function test_browserAction() {
+  await testPermission({
+    namespace: "browserAction",
+    manifest: {
+      browser_action: {},
+    },
+  });
+});
+
+add_task(async function test_pageAction() {
+  await testPermission({
+    namespace: "pageAction",
+    manifest: {
+      page_action: {},
+    },
+  });
+});