[hw-5] concurrency, graceful shutdown, concurrent tests

cart/internal/domain/service/service_test.go

@@ -8,6 +8,7 @@ import (
 	"github.com/gojuno/minimock/v3"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/goleak"
 
 	"route256/cart/internal/domain/entity"
 	"route256/cart/internal/domain/model"
@@ -33,6 +34,21 @@ func (f *productServiceFake) GetProductBySku(_ context.Context, sku entity.Sku)
 	}, nil
 }
 
+func (f *productServiceFake) GetProducts(ctx context.Context, skus []entity.Sku) ([]*model.Product, error) {
+	res := make([]*model.Product, len(skus))
+
+	for i, sku := range skus {
+		prod, err := f.GetProductBySku(ctx, sku)
+		if err != nil {
+			return nil, err
+		}
+
+		res[i] = prod
+	}
+
+	return res, nil
+}
+
 type lomsServiceFake struct{}
 
 func (f *lomsServiceFake) StocksInfo(_ context.Context, sku entity.Sku) (uint32, error) {
@@ -51,6 +67,10 @@ func (f *lomsServiceFake) OrderCreate(_ context.Context, cart *model.Cart) (int6
 	return 1234, nil
 }
 
+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
+
 func TestCartService_AddItem(t *testing.T) {
 	t.Parallel()