simple cases when the preexisting targeted account does not have instructeur or profile profile

spec/controllers/manager/users_controller_spec.rb

@@ -21,24 +21,54 @@ describe Manager::UsersController, type: :controller do
 
     subject { patch :update, params: { id: user.id, user: { email: nouvel_email } } }
 
-    describe 'with a valid email' do
-      let(:nouvel_email) { 'nouvel.email@domaine.fr' }
+    context 'when the targeted email does not exist' do
+      describe 'with a valid email' do
+        let(:nouvel_email) { 'nouvel.email@domaine.fr' }
 
-      it 'updates the user email' do
-        subject
+        it 'updates the user email' do
+          subject
 
-        expect(User.find_by(id: user.id).email).to eq(nouvel_email)
+          expect(User.find_by(id: user.id).email).to eq(nouvel_email)
+        end
+      end
+
+      describe 'with an invalid email' do
+        let(:nouvel_email) { 'plop' }
+
+        it 'does not update the user email' do
+          subject
+
+          expect(User.find_by(id: user.id).email).not_to eq(nouvel_email)
+          expect(flash[:error]).to match("Courriel invalide")
+        end
       end
     end
 
-    describe 'with an invalid email' do
-      let(:nouvel_email) { 'plop' }
+    context 'when the targeted email exists' do
+      let(:preexisting_user) { create(:user, email: 'email.existant@domaine.fr') }
+      let(:nouvel_email) { preexisting_user.email }
 
-      it 'does not update the user email' do
-        subject
+      context 'and the old account has a dossier' do
+        let!(:dossier) { create(:dossier, user: user) }
 
-        expect(User.find_by(id: user.id).email).not_to eq(nouvel_email)
-        expect(flash[:error]).to match("« #{nouvel_email} » n’est pas une adresse valide.")
+        it 'transfers the dossier' do
+          subject
+
+          expect(preexisting_user.dossiers).to match([dossier])
+        end
+      end
+
+      context 'and the old account belongs to an instructeur and expert' do
+        let!(:instructeur) { create(:instructeur, user: user) }
+        let!(:expert) { create(:expert, user: user) }
+
+        it 'transfers instructeur account' do
+          subject
+          preexisting_user.reload
+
+          expect(preexisting_user.instructeur).to match(instructeur)
+          expect(preexisting_user.expert).to match(expert)
+        end
       end
     end
   end