1 files changed, 48 insertions, 0 deletions
diff --git a/comm/mail/test/browser/message-window/browser_emlSubject.js b/comm/mail/test/browser/message-window/browser_emlSubject.js
new file mode 100644
index 0000000000..f8fc12c4de
--- /dev/null
+++ b/comm/mail/test/browser/message-window/browser_emlSubject.js
@@ -0,0 +1,48 @@
+/* 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/. */
+
+/**
+ * Tests that opening an .eml file with empty subject works.
+ */
+
+"use strict";
+
+var { open_message_from_file } = ChromeUtils.import(
+  "resource://testing-common/mozmill/FolderDisplayHelpers.jsm"
+);
+var { close_window } = ChromeUtils.import(
+  "resource://testing-common/mozmill/WindowHelpers.jsm"
+);
+
+async function check_eml_window_title(subject, eml) {
+  let file = new FileUtils.File(getTestFilePath(`data/${eml}`));
+  let msgc = await open_message_from_file(file);
+
+  let brandBundle = Services.strings.createBundle(
+    "chrome://branding/locale/brand.properties"
+  );
+  let productName = brandBundle.GetStringFromName("brandFullName");
+  let expectedTitle = subject;
+  if (expectedTitle && AppConstants.platform != "macosx") {
+    expectedTitle += " - ";
+  }
+
+  if (!expectedTitle || AppConstants.platform != "macosx") {
+    expectedTitle += productName;
+  }
+
+  await TestUtils.waitForCondition(
+    () => msgc.window.document.title == expectedTitle
+  );
+  Assert.equal(msgc.window.document.title, expectedTitle);
+  close_window(msgc);
+}
+
+add_task(async function test_eml_empty_subject() {
+  await check_eml_window_title("", "./emptySubject.eml");
+});
+
+add_task(async function test_eml_normal_subject() {
+  await check_eml_window_title("An email", "./evil.eml");
+});