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

cart/tests/integration/cart_integration_test.go

@@ -17,6 +17,7 @@ import (
 	"github.com/ozontech/allure-go/pkg/framework/suite"
 	"github.com/testcontainers/testcontainers-go"
 	"github.com/testcontainers/testcontainers-go/wait"
+	"go.uber.org/goleak"
 	"google.golang.org/grpc"
 
 	"route256/cart/internal/app"
@@ -64,6 +65,8 @@ type CartHandlerSuite struct {
 }
 
 func TestCartHandlerSuite(t *testing.T) {
+	defer goleak.VerifyNone(t)
+
 	suite.RunSuite(t, new(CartHandlerSuite))
 }
 
@@ -111,6 +114,9 @@ func (s *CartHandlerSuite) BeforeAll(t provider.T) {
 			*http.DefaultClient,
 			testToken,
 			productURL,
+			10,
+			10,
+			10,
 		)
 
 		lomsClient := pbLoms.NewLOMSClient(s.lomsConn)