Merge branch 'emoji-btn-disabled' into 'master'

Disabled award emoji button when user is not logged in

## What does this MR do?

The award emoji buttons are now disabled when the user is not signed in, stopping them from clicking it & then getting an error.

## Screenshots (if relevant)

![Screen_Shot_2016-11-22_at_10.25.20](/uploads/210378bde90e689fbc12940ce271c05e/Screen_Shot_2016-11-22_at_10.25.20.png)

## What are the relevant issue numbers?

Closes #24680

See merge request !7651

app/views/award_emoji/_awards_block.html.haml

 - grouped_emojis = awardable.grouped_awards(with_thumbs: inline)
 .awards.js-awards-block{ class: ("hidden" if !inline && grouped_emojis.empty?), data: { award_url: toggle_award_url(awardable) } }
   - awards_sort(grouped_emojis).each do |emoji, awards|
-    %button.btn.award-control.js-emoji-btn.has-tooltip{ type: "button", class: (award_active_class(awards, current_user)), data: { placement: "bottom", title: award_user_list(awards, current_user) } }
+    %button.btn.award-control.js-emoji-btn.has-tooltip{ type: "button",
+      disabled: !current_user,
+      class: (award_active_class(awards, current_user)),
+      data: { placement: "bottom", title: award_user_list(awards, current_user) } }
       = emoji_icon(emoji, sprite: false)
       %span.award-control-text.js-counter
         = awards.count

changelogs/unreleased/emoji-btn-disabled.yml

+---
+title: Disabled emoji buttons when user is not logged in
+merge_request: 
+author: 

spec/features/issues/award_emoji_spec.rb

@@ -3,21 +3,21 @@ require 'rails_helper'
 describe 'Awards Emoji', feature: true do
   include WaitForAjax
 
-  let!(:project)   { create(:project) }
+  let!(:project)   { create(:project, :public) }
   let!(:user)      { create(:user) }
+  let(:issue) do
+    create(:issue,
+           assignee: @user,
+           project: project)
+  end
 
+  context 'authorized user' do
     before do
       project.team << [user, :master]
       login_as(user)
     end
 
     describe 'Click award emoji from issue#show' do
-    let!(:issue) do
-      create(:issue,
-             assignee: @user,
-             project: project)
-    end
-
       let!(:note) {  create(:note_on_issue, noteable: issue, project: issue.project, note: "Hello world") }
 
       before do
@@ -68,6 +68,17 @@ describe 'Awards Emoji', feature: true do
         end
       end
     end
+  end
+
+  context 'unauthorized user', js: true do
+    before do
+      visit namespace_project_issue_path(project.namespace, project, issue)
+    end
+
+    it 'has disabled emoji button' do
+      expect(first('.award-control')[:disabled]).to be(true)
+    end
+  end
 
   def thumbsup_emoji
     page.all(emoji_counter).first