FIX: Changing notification level in topic footer buttons was not updating timeline.

test/javascripts/acceptance/topic-notifications-button-test.js.es6

@@ -0,0 +1,45 @@
+import { acceptance } from "helpers/qunit-helpers";
+acceptance("Topic Notifications button", {
+  loggedIn: true,
+  setup() {
+    const response = object => {
+      return [
+        200,
+        { "Content-Type": "application/json" },
+        object
+      ];
+    };
+
+    server.post('/t/280/notifications', () => { // eslint-disable-line no-undef
+      return response({});
+    });
+  }
+});
+
+test("Share Popup", () => {
+  visit("/t/internationalization-localization/280");
+
+  const notificationOptions = "#topic-footer-buttons .notification-options";
+
+  andThen(() => {
+    ok(
+      exists(`${notificationOptions} .tracking`),
+      "it should display the notification options button in the topic's footer"
+    );
+  });
+
+  click(`${notificationOptions} .tracking`);
+  click(`${notificationOptions} .dropdown-menu .watching`);
+
+  andThen(() => {
+    ok(
+      exists(`${notificationOptions} .watching`),
+      "it should display the right notification level"
+    );
+
+    ok(
+      exists(".timeline-footer-controls .notification-options .watching"),
+      'it should display the right notification level in topic timeline'
+    );
+  });
+});