1 files changed, 62 insertions, 0 deletions
diff --git a/js/xpconnect/tests/browser/browser_import_mapped_jsm.js b/js/xpconnect/tests/browser/browser_import_mapped_jsm.js
new file mode 100644
index 0000000000..385f4e33c0
--- /dev/null
+++ b/js/xpconnect/tests/browser/browser_import_mapped_jsm.js
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// Verify Cu.import and ChromeUtils.import works for JSM URL even after
+// ESM-ification, and any not-in-tree consumer doesn't break.
+//
+// This test modules that's commonly used by not-in-tree consumers, such as
+// privilege extensions and AutoConfigs.
+
+const JSMs = [
+  "resource:///modules/AboutNewTab.jsm",
+  "resource:///modules/CustomizableUI.jsm",
+  "resource:///modules/UITour.jsm",
+  "resource:///modules/distribution.js",
+  "resource://gre/modules/AddonManager.jsm",
+  "resource://gre/modules/AppConstants.jsm",
+  "resource://gre/modules/AsyncShutdown.jsm",
+  "resource://gre/modules/Console.jsm",
+  "resource://gre/modules/FileUtils.jsm",
+  "resource://gre/modules/LightweightThemeManager.jsm",
+  "resource://gre/modules/NetUtil.jsm",
+  "resource://gre/modules/PlacesUtils.jsm",
+  "resource://gre/modules/PluralForm.jsm",
+  "resource://gre/modules/PrivateBrowsingUtils.jsm",
+  "resource://gre/modules/Timer.jsm",
+  "resource://gre/modules/XPCOMUtils.jsm",
+  "resource://gre/modules/addons/XPIDatabase.jsm",
+  "resource://gre/modules/addons/XPIProvider.jsm",
+  "resource://gre/modules/addons/XPIInstall.jsm",
+  "resource:///modules/BrowserWindowTracker.jsm",
+];
+
+if (AppConstants.platform === "win") {
+  JSMs.push("resource:///modules/WindowsJumpLists.jsm");
+}
+
+add_task(async function test_chrome_utils_import() {
+  for (const file of JSMs) {
+    try {
+      ChromeUtils.import(file);
+      ok(true, `Imported ${file}`);
+    } catch (e) {
+      ok(false, `Failed to import ${file}`);
+    }
+  }
+});
+
+add_task(async function test_cu_import() {
+  for (const file of JSMs) {
+    try {
+      // eslint-disable-next-line mozilla/use-chromeutils-import
+      Cu.import(file, {});
+      ok(true, `Imported ${file}`);
+    } catch (e) {
+      ok(false, `Failed to import ${file}`);
+    }
+  }
+});