adds notifications for proposals

spec/features/notifications_spec.rb

@@ -149,6 +149,64 @@ feature "Notifications" do
     expect(page).to have_css ".notification", count: 0
   end
 
+  context "Proposal notification" do
+
+    scenario "Voters should receive a notification", :js do
+      author = create(:user)
+
+      user1 = create(:user)
+      user2 = create(:user)
+      user3 = create(:user)
+
+      proposal = create(:proposal, author: author)
+
+      create(:vote, voter: user1, votable: proposal, vote_flag: true)
+      create(:vote, voter: user2, votable: proposal, vote_flag: true)
+
+      login_as(author)
+      visit root_path
+
+      visit new_proposal_notification_path(proposal_id: proposal.id)
+
+      fill_in 'proposal_notification_title', with: "Thank you for supporting my proposal"
+      fill_in 'proposal_notification_body', with: "Please share it with others so we can make it happen!"
+      click_button "Send message"
+
+      expect(page).to have_content "Your message has been sent correctly."
+
+      logout
+      login_as user1
+      visit root_path
+
+      find(".icon-notification").click
+
+      expect(page).to have_css ".notification", count: 1
+      expect(page).to have_content "There is one new notification on #{proposal.title}"
+      expect(page).to have_xpath "//a[@href='#{notification_path(Notification.last)}']"
+
+      logout
+      login_as user2
+      visit root_path
+
+      find(".icon-notification").click
+
+      expect(page).to have_css ".notification", count: 1
+      expect(page).to have_content "There is one new notification on #{proposal.title}"
+      expect(page).to have_xpath "//a[@href='#{notification_path(Notification.first)}']"
+
+      logout
+      login_as user3
+      visit root_path
+
+      find(".icon-no-notification").click
+
+      expect(page).to have_css ".notification", count: 0
+    end
+
+    pending "group notifications for the same proposal"
+
+  end
+
   context "mark as read" do
 
     scenario "mark a single notification as read" do