1 files changed, 44 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/merge_requests/accept_spec.rb b/spec/requests/api/graphql/mutations/merge_requests/accept_spec.rb
new file mode 100644
index 00000000000..2725b33d528
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/merge_requests/accept_spec.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'accepting a merge request', :request_store do
+  include GraphqlHelpers
+
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:project) { create(:project, :public, :repository) }
+  let!(:merge_request) { create(:merge_request, source_project: project) }
+  let(:input) do
+    {
+      project_path: project.full_path,
+      iid: merge_request.iid.to_s,
+      sha: merge_request.diff_head_sha
+    }
+  end
+
+  let(:mutation) { graphql_mutation(:merge_request_accept, input, 'mergeRequest { state }') }
+  let(:mutation_response) { graphql_mutation_response(:merge_request_accept) }
+
+  context 'when the user is not allowed to accept a merge request' do
+    before do
+      project.add_reporter(current_user)
+    end
+
+    it_behaves_like 'a mutation that returns a top-level access error'
+  end
+
+  context 'when user has permissions to create a merge request' do
+    before do
+      project.add_maintainer(current_user)
+    end
+
+    it 'merges the merge request' do
+      post_graphql_mutation(mutation, current_user: current_user)
+
+      expect(response).to have_gitlab_http_status(:success)
+      expect(mutation_response['mergeRequest']).to include(
+        'state' => 'merged'
+      )
+    end
+  end
+end