Speed up specs for GET /projects/:id/events

From 8.15s to 4.55s by grouping expectations
Signed-off-by: Rémy Coutable <remy@rymai.me>

spec/requests/api/projects_spec.rb

@@ -588,37 +588,39 @@ describe API::API, api: true  do
       before do
         note = create(:note_on_issue, note: 'What an awesome day!', project: project)
         EventCreateService.new.leave_note(note, note.author)
-        get api("/projects/#{project.id}/events", user)
       end
 
-      it { expect(response).to have_http_status(200) }
+      it 'returns all events' do
+        get api("/projects/#{project.id}/events", user)
 
-      context 'joined event' do
-        let(:json_event) { json_response[1] }
+        expect(response).to have_http_status(200)
 
-        it { expect(json_event['action_name']).to eq('joined') }
-        it { expect(json_event['project_id'].to_i).to eq(project.id) }
-        it { expect(json_event['author_username']).to eq(user3.username) }
-        it { expect(json_event['author']['name']).to eq(user3.name) }
-      end
+        first_event = json_response.first
 
-      context 'comment event' do
-        let(:json_event) { json_response.first }
+        expect(first_event['action_name']).to eq('commented on')
+        expect(first_event['note']['body']).to eq('What an awesome day!')
 
-        it { expect(json_event['action_name']).to eq('commented on') }
-        it { expect(json_event['note']['body']).to eq('What an awesome day!') }
+        last_event = json_response.last
+
+        expect(last_event['action_name']).to eq('joined')
+        expect(last_event['project_id'].to_i).to eq(project.id)
+        expect(last_event['author_username']).to eq(user3.username)
+        expect(last_event['author']['name']).to eq(user3.name)
       end
     end
 
     it 'returns a 404 error if not found' do
       get api('/projects/42/events', user)
+
       expect(response).to have_http_status(404)
       expect(json_response['message']).to eq('404 Project Not Found')
     end
 
     it 'returns a 404 error if user is not a member' do
       other_user = create(:user)
+
       get api("/projects/#{project.id}/events", other_user)
+
       expect(response).to have_http_status(404)
     end
   end