1 files changed, 22 insertions, 0 deletions
diff --git a/comm/mail/components/shell/test/unit/test_shellService.js b/comm/mail/components/shell/test/unit/test_shellService.js
new file mode 100644
index 0000000000..ebd9f85532
--- /dev/null
+++ b/comm/mail/components/shell/test/unit/test_shellService.js
@@ -0,0 +1,22 @@
+/* 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/. */
+
+/**
+ * Test setDefaultClient works for all supported types.
+ */
+add_task(function test_setDefaultClient() {
+  let shellSvc = Cc["@mozilla.org/mail/shell-service;1"].getService(
+    Ci.nsIShellService
+  );
+
+  let types = ["MAIL", "NEWS", "RSS", "CALENDAR"];
+
+  for (let type of types) {
+    shellSvc.setDefaultClient(false, shellSvc[type]);
+    ok(
+      shellSvc.isDefaultClient(false, shellSvc[type]),
+      `setDefaultClient works for type ${type}`
+    );
+  }
+});