1 files changed, 21 insertions, 5 deletions
diff --git a/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb b/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb
index bfb3ce91d58..45777aa96e1 100644
--- a/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb
+++ b/spec/graphql/resolvers/project_merge_requests_resolver_spec.rb
@@ -8,14 +8,16 @@ RSpec.describe Resolvers::ProjectMergeRequestsResolver do
   let_it_be(:project) { create(:project, :repository) }
   let_it_be(:current_user) { create(:user) }
   let_it_be(:other_user) { create(:user) }
+  let_it_be(:reviewer) { create(:user) }
 
-  let_it_be(:merge_request_with_author_and_assignee) do
+  let_it_be(:merge_request) do
     create(:merge_request,
            :unique_branches,
            source_project: project,
            target_project: project,
            author: other_user,
-           assignee: other_user)
+           assignee: other_user,
+           reviewers: [reviewer])
   end
 
   before do
@@ -26,7 +28,7 @@ RSpec.describe Resolvers::ProjectMergeRequestsResolver do
     it 'filters merge requests by assignee username' do
       result = resolve_mr(project, assignee_username: other_user.username)
 
-      expect(result).to eq([merge_request_with_author_and_assignee])
+      expect(result).to contain_exactly(merge_request)
     end
 
     it 'does not find anything' do
@@ -40,7 +42,7 @@ RSpec.describe Resolvers::ProjectMergeRequestsResolver do
     it 'filters merge requests by author username' do
       result = resolve_mr(project, author_username: other_user.username)
 
-      expect(result).to eq([merge_request_with_author_and_assignee])
+      expect(result).to contain_exactly(merge_request)
     end
 
     it 'does not find anything' do
@@ -50,7 +52,21 @@ RSpec.describe Resolvers::ProjectMergeRequestsResolver do
     end
   end
 
-  def resolve_mr(project, args, resolver: described_class, user: current_user)
+  context 'by reviewer' do
+    it 'filters merge requests by reviewer username' do
+      result = resolve_mr(project, reviewer_username: reviewer.username)
+
+      expect(result).to contain_exactly(merge_request)
+    end
+
+    it 'does not find anything' do
+      result = resolve_mr(project, reviewer_username: 'unknown-user')
+
+      expect(result).to be_empty
+    end
+  end
+
+  def resolve_mr(project, resolver: described_class, user: current_user, **args)
     resolve(resolver, obj: project, args: args, ctx: { current_user: user })
   end
 end