1 files changed, 79 insertions, 0 deletions
diff --git a/spec/services/ml/create_model_version_service_spec.rb b/spec/services/ml/create_model_version_service_spec.rb
new file mode 100644
index 00000000000..b3aead4a92c
--- /dev/null
+++ b/spec/services/ml/create_model_version_service_spec.rb
@@ -0,0 +1,79 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ::Ml::CreateModelVersionService, feature_category: :mlops do
+  let(:model) { create(:ml_models) }
+  let(:params) { {} }
+
+  before do
+    allow(Gitlab::InternalEvents).to receive(:track_event)
+  end
+
+  subject(:service) { described_class.new(model, params).execute }
+
+  context 'when no versions exist' do
+    it 'creates a model version', :aggregate_failures do
+      expect { service }.to change { Ml::ModelVersion.count }.by(1).and change { Ml::Candidate.count }.by(1)
+      expect(model.reload.latest_version.version).to eq('1.0.0')
+
+      expect(Gitlab::InternalEvents).to have_received(:track_event).with(
+        'model_registry_ml_model_version_created',
+        { project: model.project, user: nil }
+      )
+    end
+  end
+
+  context 'when a version exist' do
+    before do
+      create(:ml_model_versions, model: model, version: '3.0.0')
+    end
+
+    it 'creates another model version and increments the version number', :aggregate_failures do
+      expect { service }.to change { Ml::ModelVersion.count }.by(1).and change { Ml::Candidate.count }.by(1)
+      expect(model.reload.latest_version.version).to eq('4.0.0')
+
+      expect(Gitlab::InternalEvents).to have_received(:track_event).with(
+        'model_registry_ml_model_version_created',
+        { project: model.project, user: nil }
+      )
+    end
+  end
+
+  context 'when a version is created' do
+    it 'creates a package' do
+      expect { service }.to change { Ml::ModelVersion.count }.by(1).and change {
+                                                                          Packages::MlModel::Package.count
+                                                                        }.by(1)
+      expect(model.reload.latest_version.package.name).to eq(model.name)
+      expect(model.latest_version.package.version).to eq(model.latest_version.version)
+    end
+  end
+
+  context 'when a version is created and the package already exists' do
+    it 'does not creates a package' do
+      next_version = Ml::IncrementVersionService.new(model.latest_version.try(:version)).execute
+      create(:ml_model_package, name: model.name, version: next_version, project: model.project)
+
+      expect { service }.to change { Ml::ModelVersion.count }.by(1).and not_change {
+                                                                          Packages::MlModel::Package.count
+                                                                        }
+      expect(model.reload.latest_version.package.name).to eq(model.name)
+      expect(model.latest_version.package.version).to eq(model.latest_version.version)
+    end
+  end
+
+  context 'when a version is created and an existing package supplied' do
+    it 'does not creates a package' do
+      next_version = Ml::IncrementVersionService.new(model.latest_version.try(:version)).execute
+      package = create(:ml_model_package, name: model.name, version: next_version, project: model.project)
+      service = described_class.new(model, { package: package })
+
+      expect { service.execute }.to change { Ml::ModelVersion.count }.by(1).and not_change {
+                                                                                  Packages::MlModel::Package.count
+                                                                                }
+      expect(model.reload.latest_version.package.name).to eq(model.name)
+      expect(model.latest_version.package.version).to eq(model.latest_version.version)
+    end
+  end
+end