redirect to sign_up link if user 's email on invitation as no account on the platform

spec/controllers/users/dossiers/invites_controller_spec.rb

@@ -0,0 +1,56 @@
+RSpec.describe Users::Dossiers::InvitesController, type: :controller do
+
+
+  describe '#authenticate_user!' do
+    let(:user) { create :user }
+    let(:invite) { create :invite }
+
+    context 'when email is not set' do
+      context 'when user is not connected' do
+        before do
+          get :show, id: invite.id
+        end
+
+        it { is_expected.to redirect_to new_user_session_path }
+      end
+
+      context 'when user is connected' do
+        let!(:invite) { create :invite, user: user }
+
+        before do
+          sign_in invite.user
+
+          get :show, id: invite.id
+        end
+
+        # it { expect(response.status).to eq 200 }
+      end
+    end
+
+    context 'when email is set' do
+      before do
+        get :show, id: invite.id, email: email
+      end
+
+      context 'when email is blank' do
+        let(:email) { '' }
+
+        it { is_expected.to redirect_to new_user_session_path }
+      end
+
+      context 'when email is not blank' do
+        context 'when email is affected at an user' do
+          let(:email) { user.email }
+
+          it { is_expected.to redirect_to new_user_session_path }
+        end
+
+        context 'when email is not affected at an user' do
+          let(:email) { 'new_user@octo.com' }
+
+          it { is_expected.to redirect_to new_user_registration_path(user_email: email) }
+        end
+      end
+    end
+  end
+end