1 files changed, 12 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/merge_requests/update_spec.rb b/spec/requests/api/graphql/mutations/merge_requests/update_spec.rb
index 48db23569b6..3e2bdb376ad 100644
--- a/spec/requests/api/graphql/mutations/merge_requests/update_spec.rb
+++ b/spec/requests/api/graphql/mutations/merge_requests/update_spec.rb
@@ -28,5 +28,17 @@ RSpec.describe 'Update of an existing merge request', feature_category: :code_re
       let(:resource) { merge_request }
       let(:mutation_name) { 'mergeRequestUpdate' }
     end
+
+    context 'when required arguments are missing' do
+      let(:input_params) { {} }
+
+      it_behaves_like 'a mutation that returns top-level errors' do
+        let(:match_errors) do
+          include(end_with(
+            'invalid value for projectPath (Expected value to not be null), iid (Expected value to not be null)'
+          ))
+        end
+      end
+    end
   end
 end