1 files changed, 49 insertions, 0 deletions
diff --git a/comm/mail/components/im/test/browser/browser_readMessage.js b/comm/mail/components/im/test/browser/browser_readMessage.js
new file mode 100644
index 0000000000..e290cb36fb
--- /dev/null
+++ b/comm/mail/components/im/test/browser/browser_readMessage.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/. */
+
+add_task(async function testDisplayed() {
+  const account = IMServices.accounts.createAccount(
+    "testuser",
+    "prpl-mochitest"
+  );
+  account.password = "this is a test";
+  account.connect();
+
+  await openChatTab();
+  ok(BrowserTestUtils.is_visible(document.getElementById("chatPanel")));
+
+  const conversation = account.prplAccount.wrappedJSObject.makeMUC("collapse");
+  const convNode = getConversationItem(conversation);
+  ok(convNode);
+
+  ok(!convNode.hasAttribute("unread"), "No unread messages");
+
+  const messagePromise = waitForNotification(conversation, "new-text");
+  conversation.writeMessage("mochitest", "hello world", {
+    incoming: true,
+  });
+  const { subject: message } = await messagePromise;
+
+  ok(convNode.hasAttribute("unread"), "Unread message waiting");
+  is(convNode.getAttribute("unreadCount"), "(1)");
+
+  await EventUtils.synthesizeMouseAtCenter(convNode, {});
+
+  const chatConv = getChatConversationElement(conversation);
+  ok(chatConv, "found conversation");
+  const browserDisplayed = BrowserTestUtils.waitForEvent(
+    chatConv.convBrowser,
+    "MessagesDisplayed"
+  );
+  ok(BrowserTestUtils.is_visible(chatConv), "conversation visible");
+
+  await browserDisplayed;
+  await message.displayed;
+
+  ok(!convNode.hasAttribute("unread"), "Message read");
+
+  conversation.close();
+  account.disconnect();
+  IMServices.accounts.deleteAccount(account.id);
+});