adds link to send message from my activity

spec/features/proposal_notifications_spec.rb

@@ -6,9 +6,17 @@ feature 'Proposal Notifications' do
     noelia = create(:user)
     vega = create(:user)
 
-    proposal = create(:proposal)
-    #use correct path from my activity
-    visit new_proposal_notification_path(proposal_id: proposal.id)
+    author = create(:user)
+    proposal = create(:proposal, author: author)
+
+    login_as(author)
+    visit root_path
+
+    click_link "My activity"
+
+    within("#proposal_#{proposal.id}") do
+      click_link "Send message"
+    end
 
     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!"
@@ -19,6 +27,30 @@ feature 'Proposal Notifications' do
     expect(page).to have_content "Please share it with others so we can make it happen!"
   end
 
+  context "Permissions" do
+
+    scenario "Link to send the message" do
+      user = create(:user)
+      author = create(:user)
+      proposal = create(:proposal, author: author)
+
+      login_as(author)
+      visit user_path(author)
+
+      within("#proposal_#{proposal.id}") do
+        expect(page).to have_link "Send message"
+      end
+
+      login_as(user)
+      visit user_path(author)
+
+      within("#proposal_#{proposal.id}") do
+        expect(page).to_not have_link "Send message"
+      end
+    end
+
+  end
+
   scenario "Error messages" do
     proposal = create(:proposal)