implement reset token

spec/features/user_managing_broadcasts_spec.rb

@@ -63,6 +63,21 @@ feature 'User managing broadcasts' do
       expect(page).to have_content(recording.download_file_name)
     end
 
+    scenario 'Clicking Reset URL regenerates broadcast token' do
+      broadcast = create(:broadcast, :with_stream, :with_files, project: project)
+      old_token = broadcast.token
+
+      visit project_broadcast_path(project, broadcast)
+
+      expect(page).to have_content reset_url
+      expect(page).to have_xpath "//input[@readonly][@value='#{broadcast_url(old_token)}']"
+
+      click_link reset_url
+      expect(Broadcast.last.token).not_to eq old_token
+      expect(page).to have_xpath "//input[@readonly][@value='#{broadcast_url(Broadcast.last.token)}']"
+      expect(page).to have_content token_reset_notice
+    end
+
     scenario 'user can go back and forth between live session and previous sessions', js: true do
       broadcast = create(:broadcast, :with_stream, :with_files, project: project)
       recording = create(:broadcast_recording, broadcast: broadcast)
@@ -189,4 +204,12 @@ feature 'User managing broadcasts' do
   def create_stream
     t 'broadcasts.splash.actions.create_stream'
   end
+
+  def reset_url
+    t 'broadcasts.show.actions.reset_url'
+  end
+
+  def token_reset_notice
+    t 'broadcasts.update.reset_notice'
+  end
 end