diff --git a/Makefile b/Makefile
index 3adf434..e2ad0ee 100644
--- a/Makefile
+++ b/Makefile
@@ -24,8 +24,9 @@ run-all:
 
 .PHONY: .integration-test
 integration-test:
-	ALLURE_OUTPUT_PATH=$(shell pwd)/allure-results ALLURE_OUTPUT_FOLDER=cart go test -v -tags=$(INTEGRATION_TAG) ./cart/tests/integration
-	CGO_ENABLED=0 ALLURE_OUTPUT_PATH=$(shell pwd)/allure-results ALLURE_OUTPUT_FOLDER=loms go test -v -tags=$(INTEGRATION_TAG) ./loms/tests/integration
+	# ALLURE_OUTPUT_PATH=$(shell pwd)/allure-results ALLURE_OUTPUT_FOLDER=cart go test -v -tags=$(INTEGRATION_TAG) ./cart/tests/integration
+	# CGO_ENABLED=0 ALLURE_OUTPUT_PATH=$(shell pwd)/allure-results ALLURE_OUTPUT_FOLDER=loms go test -v -tags=$(INTEGRATION_TAG) ./loms/tests/integration
+	CGO_ENABLED=0 ALLURE_OUTPUT_PATH=$(shell pwd)/allure-results ALLURE_OUTPUT_FOLDER=comments go test -v -tags=$(INTEGRATION_TAG) ./comments/tests/integration
 
 bench:
 	go test -bench=BenchmarkInMemoryRepository -benchmem ./cart/internal/domain/cart/repository -benchtime 3s
diff --git a/comments/infra/repository/sqlc/repository.go b/comments/infra/repository/sqlc/repository.go
index c7cc404..9687cc2 100644
--- a/comments/infra/repository/sqlc/repository.go
+++ b/comments/infra/repository/sqlc/repository.go
@@ -77,8 +77,6 @@ func (r *commentsRepo) InsertComment(ctx context.Context, comment *entity.Commen
 
 	r.idMx.Lock()
 	id := r.curID*1000 + shardID
-	r.curID++
-	r.idMx.Unlock()
 
 	req := &InsertCommentParams{
 		UserID: comment.UserID,
@@ -92,6 +90,9 @@ func (r *commentsRepo) InsertComment(ctx context.Context, comment *entity.Commen
 		return nil, err
 	}
 
+	r.curID++
+	r.idMx.Unlock()
+
 	return mapComment(c), nil
 }
 
@@ -125,12 +126,17 @@ func (r *commentsRepo) ListCommentsByUser(ctx context.Context, userID int64) ([]
 		return nil, err2
 	}
 
+	alreadyMerged := make(map[int64]struct{}, len(l1)+len(l2))
 	merged := make([]*entity.Comment, 0, len(l1)+len(l2))
 	for _, com := range l1 {
 		merged = append(merged, mapComment(com))
+		alreadyMerged[com.Sku] = struct{}{}
 	}
 	for _, com := range l2 {
-		merged = append(merged, mapComment(com))
+		if _, ok := alreadyMerged[com.Sku]; !ok {
+			merged = append(merged, mapComment(com))
+			alreadyMerged[com.Sku] = struct{}{}
+		}
 	}
 
 	return merged, nil
diff --git a/comments/tests/integration/comments_integration_test.go b/comments/tests/integration/comments_integration_test.go
new file mode 100644
index 0000000..ec8b6af
--- /dev/null
+++ b/comments/tests/integration/comments_integration_test.go
@@ -0,0 +1,230 @@
+//go:build integration
+// +build integration
+
+package integration
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+	_ "github.com/jackc/pgx/v5/stdlib"
+	"github.com/ozontech/allure-go/pkg/framework/provider"
+	"github.com/ozontech/allure-go/pkg/framework/suite"
+	"github.com/pressly/goose/v3"
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/wait"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+
+	repo "route256/comments/infra/repository/sqlc"
+	"route256/comments/internal/app/server"
+	"route256/comments/internal/domain/service"
+	pb "route256/pkg/api/comments/v1"
+)
+
+const (
+	migrationsDir = "../../db/migrations"
+)
+
+func startPostgres(ctx context.Context, migrationsDir string) (*pgxpool.Pool, func(), error) {
+	req := testcontainers.ContainerRequest{
+		Image: "gitlab-registry.ozon.dev/go/classroom-18/students/base/postgres:16",
+		Env: map[string]string{
+			"POSTGRESQL_USERNAME": "user",
+			"POSTGRESQL_PASSWORD": "postgres",
+			"POSTGRESQL_DATABASE": "comments_test",
+		},
+		ExposedPorts: []string{"5432/tcp"},
+		WaitingFor:   wait.ForListeningPort("5432/tcp").WithStartupTimeout(30 * time.Second),
+	}
+	container, err := testcontainers.GenericContainer(ctx,
+		testcontainers.GenericContainerRequest{ContainerRequest: req, Started: true})
+	if err != nil {
+		return nil, nil, err
+	}
+
+	endpoint, err := container.PortEndpoint(ctx, "5432", "")
+	if err != nil {
+		container.Terminate(ctx)
+		return nil, nil, err
+	}
+
+	dsn := fmt.Sprintf("postgresql://user:postgres@%s/comments_test?sslmode=disable", endpoint)
+
+	var pool *pgxpool.Pool
+	for i := 0; i < 30; i++ {
+		pool, err = pgxpool.New(ctx, dsn)
+		if err == nil && pool.Ping(ctx) == nil {
+			break
+		}
+		time.Sleep(1 * time.Second)
+	}
+	if err != nil {
+		container.Terminate(ctx)
+		return nil, nil, err
+	}
+
+	std, err := sql.Open("pgx", dsn)
+	if err != nil {
+		container.Terminate(ctx)
+		return nil, nil, err
+	}
+
+	if err := goose.Up(std, migrationsDir); err != nil {
+		container.Terminate(ctx)
+		return nil, nil, err
+	}
+	std.Close()
+
+	cleanup := func() {
+		pool.Close()
+		_ = container.Terminate(context.Background())
+	}
+	return pool, cleanup, nil
+}
+
+type Suite struct {
+	suite.Suite
+
+	grpcSrv  *grpc.Server
+	grpcConn *grpc.ClientConn
+
+	client pb.CommentsClient
+
+	cleanup func()
+}
+
+func TestLomsIntegrationSuite(t *testing.T) {
+	suite.RunSuite(t, new(Suite))
+}
+
+func (s *Suite) BeforeAll(t provider.T) {
+	ctx := context.Background()
+	t.WithNewStep("init cart-service", func(sCtx provider.StepCtx) {
+		pool, cleanup, err := startPostgres(ctx, migrationsDir)
+		sCtx.Require().NoError(err, "failed postgres setup")
+
+		s.cleanup = cleanup
+
+		repo := repo.NewCommentsRepository(pool, pool)
+
+		svc := service.NewCommentsService(repo, 1)
+
+		commentsServer := server.NewServer(svc)
+
+		lis, err := net.Listen("tcp", "127.0.0.1:0")
+		sCtx.Require().NoError(err)
+
+		s.grpcSrv = grpc.NewServer()
+		pb.RegisterCommentsServer(s.grpcSrv, commentsServer)
+
+		go func() { _ = s.grpcSrv.Serve(lis) }()
+
+		time.Sleep(50 * time.Millisecond)
+
+		conn, err := grpc.NewClient(lis.Addr().String(), grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithBlock())
+		sCtx.Require().NoError(err)
+
+		s.grpcConn = conn
+		s.client = pb.NewCommentsClient(conn)
+	})
+}
+
+func (s *Suite) AfterAll(t provider.T) {
+	s.grpcSrv.Stop()
+	_ = s.grpcConn.Close()
+	s.cleanup()
+}
+
+func (s *Suite) TestCommentListByOneUser_Success(t provider.T) {
+	t.Title("Успешное получение списка комментариев, которые оставил один юзер по SKU")
+
+	ctx := context.Background()
+
+	const (
+		userID       = int64(40)
+		sku          = int64(40)
+		commentText1 = "тестовый комментарий 1"
+		commentText2 = "тестовый комментарий 2"
+	)
+
+	var (
+		commentIDs []int64
+		commentID  int64
+	)
+
+	t.WithNewParameters("userID", userID, "sku", sku)
+
+	t.WithNewStep("Создание комментария 1", func(sCtx provider.StepCtx) {
+		req := &pb.CreateCommentRequest{
+			UserId:  userID,
+			Sku:     sku,
+			Comment: commentText1,
+		}
+		resp, err := s.client.CommentAdd(ctx, req)
+		sCtx.Require().NoError(err)
+		commentID = resp.Id
+
+		commentIDs = append(commentIDs, commentID)
+	})
+
+	t.WithNewParameters("commentID1", commentID)
+
+	t.WithNewStep("Получение первого созданного комментария", func(sCtx provider.StepCtx) {
+		req := &pb.ListByUserRequest{
+			UserId: userID,
+		}
+		resp, err := s.client.CommentListByUser(ctx, req)
+		sCtx.Require().NoError(err)
+
+		sCtx.Require().Len(resp.Comments, 1)
+		sCtx.Require().NotNil(resp.Comments[0])
+
+		resultComment := resp.Comments[0]
+
+		sCtx.Require().Equal(commentID, resultComment.Id)
+		sCtx.Require().Equal(sku, resultComment.Sku)
+		sCtx.Require().Equal(commentText1, resultComment.Text)
+	})
+
+	t.WithNewStep("Создание комментария 2", func(sCtx provider.StepCtx) {
+		req := &pb.CreateCommentRequest{
+			UserId:  userID,
+			Sku:     sku,
+			Comment: commentText2,
+		}
+		resp, err := s.client.CommentAdd(ctx, req)
+		sCtx.Require().NoError(err)
+
+		commentID = resp.Id
+		commentIDs = append(commentIDs, commentID)
+	})
+
+	t.WithNewParameters("commentID2", commentID)
+
+	t.WithNewStep("Получение созданных комментариев в обратном хронологическом порядке", func(sCtx provider.StepCtx) {
+		req := &pb.ListByUserRequest{
+			UserId: userID,
+		}
+		resp, err := s.client.CommentListByUser(ctx, req)
+		sCtx.Require().NoError(err)
+
+		sCtx.Require().Len(resp.Comments, 2)
+		sCtx.Require().NotNil(resp.Comments[0])
+		sCtx.Require().NotNil(resp.Comments[1])
+
+		// commentIDs содержит в себе id комментариев в прямом хронологическом порядке
+		sCtx.Require().Equal(commentIDs[1], resp.Comments[0].Id)
+		sCtx.Require().Equal(sku, resp.Comments[0].Sku)
+		sCtx.Require().Equal(commentText2, resp.Comments[0].Text)
+
+		sCtx.Require().Equal(commentIDs[0], resp.Comments[1].Id)
+		sCtx.Require().Equal(sku, resp.Comments[1].Sku)
+		sCtx.Require().Equal(commentText1, resp.Comments[1].Text)
+	})
+}