1 files changed, 80 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/metrics/dashboard/annotations/delete_spec.rb b/spec/requests/api/graphql/mutations/metrics/dashboard/annotations/delete_spec.rb
new file mode 100644
index 00000000000..217f538c53e
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/metrics/dashboard/annotations/delete_spec.rb
@@ -0,0 +1,80 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Mutations::Metrics::Dashboard::Annotations::Delete do
+  include GraphqlHelpers
+
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:project) { create(:project, :private, :repository) }
+  let_it_be(:environment) { create(:environment, project: project) }
+  let_it_be(:annotation) { create(:metrics_dashboard_annotation, environment: environment) }
+  let(:mutation) do
+    variables = {
+      id: GitlabSchema.id_from_object(annotation).to_s
+    }
+
+    graphql_mutation(:delete_annotation, variables)
+  end
+
+  def mutation_response
+    graphql_mutation_response(:delete_annotation)
+  end
+
+  specify { expect(described_class).to require_graphql_authorizations(:delete_metrics_dashboard_annotation) }
+
+  context 'when the user has permission to delete the annotation' do
+    before do
+      project.add_developer(current_user)
+    end
+
+    context 'with valid params' do
+      it 'deletes the annotation' do
+        expect do
+          post_graphql_mutation(mutation, current_user: current_user)
+        end.to change { Metrics::Dashboard::Annotation.count }.by(-1)
+      end
+    end
+
+    context 'with invalid params' do
+      let(:mutation) do
+        variables = {
+          id: 'invalid_id'
+        }
+
+        graphql_mutation(:delete_annotation, variables)
+      end
+
+      it_behaves_like 'a mutation that returns top-level errors', errors: ['invalid_id is not a valid GitLab id.']
+    end
+
+    context 'when the delete fails' do
+      let(:service_response) { { message: 'Annotation has not been deleted', status: :error, last_step: :delete } }
+
+      before do
+        allow_next_instance_of(Metrics::Dashboard::Annotations::DeleteService) do |delete_service|
+          allow(delete_service).to receive(:execute).and_return(service_response)
+        end
+      end
+      it 'returns the error' do
+        post_graphql_mutation(mutation, current_user: current_user)
+
+        expect(mutation_response['errors']).to eq([service_response[:message]])
+      end
+    end
+  end
+
+  context 'when the user does not have permission to delete the annotation' do
+    before do
+      project.add_reporter(current_user)
+    end
+
+    it_behaves_like 'a mutation that returns top-level errors', errors: [Gitlab::Graphql::Authorize::AuthorizeResource::RESOURCE_ACCESS_ERROR]
+
+    it 'does not delete the annotation' do
+      expect do
+        post_graphql_mutation(mutation, current_user: current_user)
+      end.not_to change { Metrics::Dashboard::Annotation.count }
+    end
+  end
+end