1 files changed, 49 insertions, 0 deletions
diff --git a/comm/mail/test/browser/smime/browser_nestedSMimeSigs.js b/comm/mail/test/browser/smime/browser_nestedSMimeSigs.js
new file mode 100644
index 0000000000..996c4e804a
--- /dev/null
+++ b/comm/mail/test/browser/smime/browser_nestedSMimeSigs.js
@@ -0,0 +1,49 @@
+/* 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 that a message containing two nested S/MIME signatures shows
+ * the contents of the inner signed message.
+ */
+
+"use strict";
+
+var { open_message_from_file, get_about_message, smimeUtils_ensureNSS } =
+  ChromeUtils.import(
+    "resource://testing-common/mozmill/FolderDisplayHelpers.jsm"
+  );
+var { close_window } = ChromeUtils.import(
+  "resource://testing-common/mozmill/WindowHelpers.jsm"
+);
+
+function getMsgBodyTxt(mc) {
+  let msgPane = get_about_message(mc.window).getMessagePaneBrowser();
+  return msgPane.contentDocument.documentElement.textContent;
+}
+
+add_task(async function test_nested_sigs() {
+  smimeUtils_ensureNSS();
+
+  let msgc = await open_message_from_file(
+    new FileUtils.File(getTestFilePath("data/nested-sigs.eml"))
+  );
+
+  Assert.ok(
+    getMsgBodyTxt(msgc).includes("level 2"),
+    "level 2 text is shown in body"
+  );
+
+  close_window(msgc);
+});
+
+registerCleanupFunction(() => {
+  // Some tests that open new windows don't return focus to the main window
+  // in a way that satisfies mochitest, and the test times out.
+  Services.focus.focusedWindow = window;
+  // Focus an element in the main window, then blur it again to avoid it
+  // hijacking keypresses.
+  let mainWindowElement = document.getElementById("button-appmenu");
+  mainWindowElement.focus();
+  mainWindowElement.blur();
+});