6 tests are fixed; 5 still failed

Still fails:
1) Failure/Error: expect(response).to redirect_to new_user_session_path
       Expected response to be a <redirect>, but was <200>
2) Failure/Error: }.to change{ subject.reload.name }. to('new_group')
     NoMethodError:
       undefined method `reload' for #<GroupsController:0xbbca678>
3)  Failure/Error: patch :update, id: subject, group: { name: 'new_group' }
     ActiveRecord::RecordNotFound:
       Couldn't find Group with 'id'=#<GroupsController:0xbbbefd0>