1 files changed, 61 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/work_items/convert_spec.rb b/spec/requests/api/graphql/mutations/work_items/convert_spec.rb
new file mode 100644
index 00000000000..97289597331
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/work_items/convert_spec.rb
@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe "Converts a work item to a new type", feature_category: :team_planning do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project) }
+  let_it_be(:developer) { create(:user).tap { |user| project.add_developer(user) } }
+  let_it_be(:new_type) { create(:work_item_type, :incident, :default) }
+  let_it_be(:work_item, refind: true) do
+    create(:work_item, :task, project: project, milestone: create(:milestone, project: project))
+  end
+
+  let(:work_item_type_id) { new_type.to_global_id.to_s }
+  let(:mutation) { graphql_mutation(:workItemConvert, input) }
+  let(:mutation_response) { graphql_mutation_response(:work_item_convert) }
+  let(:input) do
+    {
+      'id' => work_item.to_global_id.to_s,
+      'work_item_type_id' => work_item_type_id
+    }
+  end
+
+  context 'when user is not allowed to update a work item' do
+    let(:current_user) { create(:user) }
+
+    it_behaves_like 'a mutation that returns a top-level access error'
+  end
+
+  context 'when user has permissions to convert the work item type' do
+    let(:current_user) { developer }
+
+    context 'when work item type does not exist' do
+      let(:work_item_type_id) { "gid://gitlab/WorkItems::Type/#{non_existing_record_id}" }
+
+      it 'returns an error' do
+        post_graphql_mutation(mutation, current_user: current_user)
+
+        expect(graphql_errors).to include(
+          a_hash_including('message' => "Work Item type with id #{non_existing_record_id} was not found")
+        )
+      end
+    end
+
+    it 'converts the work item', :aggregate_failures do
+      expect do
+        post_graphql_mutation(mutation, current_user: current_user)
+      end.to change { work_item.reload.work_item_type }.to(new_type)
+
+      expect(response).to have_gitlab_http_status(:success)
+      expect(work_item.reload.work_item_type.base_type).to eq('incident')
+      expect(mutation_response['workItem']).to include('id' => work_item.to_global_id.to_s)
+      expect(work_item.reload.milestone).to be_nil
+    end
+
+    it_behaves_like 'has spam protection' do
+      let(:mutation_class) { ::Mutations::WorkItems::Convert }
+    end
+  end
+end