1 files changed, 55 insertions, 0 deletions
diff --git a/spec/services/ml/model_versions/delete_service_spec.rb b/spec/services/ml/model_versions/delete_service_spec.rb
new file mode 100644
index 00000000000..1cc5a2f85a5
--- /dev/null
+++ b/spec/services/ml/model_versions/delete_service_spec.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Ml::ModelVersions::DeleteService, feature_category: :mlops do
+  let_it_be(:valid_model_version) do
+    create(:ml_model_versions, :with_package)
+  end
+
+  let(:project) { valid_model_version.project }
+  let(:user) { valid_model_version.project.owner }
+  let(:name) { valid_model_version.name }
+  let(:version) { valid_model_version.version }
+
+  subject(:execute_service) { described_class.new(project, name, version, user).execute }
+
+  describe '#execute' do
+    context 'when model version exists' do
+      it 'deletes the model version', :aggregate_failures do
+        expect(execute_service).to be_success
+        expect(Ml::ModelVersion.find_by(id: valid_model_version.id)).to be_nil
+      end
+    end
+
+    context 'when model version does not exist' do
+      let(:version) { 'wrong-version' }
+
+      it { is_expected.to be_error.and have_attributes(message: 'Model not found') }
+    end
+
+    context 'when model version has no package' do
+      before do
+        valid_model_version.update!(package: nil)
+      end
+
+      it 'does not trigger destroy package service', :aggregate_failures do
+        expect(Packages::MarkPackageForDestructionService).not_to receive(:new)
+        expect(execute_service).to be_success
+      end
+    end
+
+    context 'when package cannot be marked for destruction' do
+      before do
+        allow_next_instance_of(Packages::MarkPackageForDestructionService) do |service|
+          allow(service).to receive(:execute).and_return(ServiceResponse.error(message: 'error'))
+        end
+      end
+
+      it 'does not delete the model version', :aggregate_failures do
+        is_expected.to be_error.and have_attributes(message: 'error')
+        expect(Ml::ModelVersion.find_by(id: valid_model_version.id)).to eq(valid_model_version)
+      end
+    end
+  end
+end