a response happened and there is a test

assets/javascripts/discourse/controllers/user-choice.js.es6

@@ -2,4 +2,10 @@ export default Ember.Controller.extend({
   user: Ember.inject.controller(),
   username: Ember.computed.alias('user.model.username_lower'),
   email: Ember.computed.alias('user.model.email'),
+
+  actions: {
+    choiceTest: function() {
+      this.set('saved', true);
+    }
+  }
 });

assets/javascripts/discourse/templates/user/choice.hbs

@@ -1,3 +1,11 @@
 <div class="payments">
   {{username}}
 </div>
+
+<button class='btn btn-primary choice-btn' {{action "choiceTest"}}>
+  click
+</button>
+
+{{#if saved}}
+  <div class="choice-response">Response happens</div>
+{{/if}}

test/javascripts/acceptance/choice-discourse-test.es6

@@ -6,6 +6,16 @@ test('Choice Page Exists', () => {
 
   andThen(() => {
     ok(exists('h1'), 'Heading exists');
-    ok($.trim($('.payments').text()) == 'eviltrout', 'eviltrout');
+    ok($.trim($('.payments').text()) == 'eviltrout', 'username is present on page');
+  });
+});
+
+test('Choice Page response happens', () => {
+  visit('/users/eviltrout/choice');
+
+  click('.choice-btn');
+
+  andThen(() => {
+    ok(exists('.choice-response'), 'Response happens');
   });
 });