1 files changed, 27 insertions, 0 deletions
diff --git a/spec/controllers/omniauth_callbacks_controller_spec.rb b/spec/controllers/omniauth_callbacks_controller_spec.rb
index e0da23ca0b8..06c6f49f7cc 100644
--- a/spec/controllers/omniauth_callbacks_controller_spec.rb
+++ b/spec/controllers/omniauth_callbacks_controller_spec.rb
@@ -113,6 +113,33 @@ describe OmniauthCallbacksController, type: :controller do
           expect(request.env['warden']).to be_authenticated
         end
 
+        context 'when user has no linked provider' do
+          let(:user) { create(:user) }
+
+          before do
+            sign_in user
+          end
+
+          it 'links identity' do
+            expect do
+              post provider
+              user.reload
+            end.to change { user.identities.count }.by(1)
+          end
+
+          context 'and is not allowed to link the provider' do
+            before do
+              allow_any_instance_of(IdentityProviderPolicy).to receive(:can?).with(:link).and_return(false)
+            end
+
+            it 'returns 403' do
+              post provider
+
+              expect(response).to have_gitlab_http_status(403)
+            end
+          end
+        end
+
         shared_context 'sign_up' do
           let(:user) { double(email: 'new@example.com') }