Fix ut

callbacks/create.go

@@ -2,7 +2,9 @@ package callbacks
 
 import (
 	"fmt"
+	"os"
 	"reflect"
+	"strconv"
 	"strings"
 
 	"gorm.io/gorm"
@@ -36,12 +38,21 @@ func BeforeCreate(db *gorm.DB) {
 // Create create hook
 func Create(config *Config) func(db *gorm.DB) {
 	supportReturning := utils.Contains(config.CreateClauses, "RETURNING")
+	rawSupportReturning := supportReturning
 
 	return func(db *gorm.DB) {
 		if db.Error != nil {
 			return
 		}
 
+		mock := os.Getenv("GORM_E2E_TEST_MOCK_CREATE_RETURNING")
+		mockSupportReturning, err := strconv.ParseBool(mock)
+		if err == nil {
+			supportReturning = mockSupportReturning
+		} else {
+			supportReturning = rawSupportReturning
+		}
+
 		if db.Statement.Schema != nil {
 			if !db.Statement.Unscoped {
 				for _, c := range db.Statement.Schema.CreateClauses {

tests/create_test.go

@@ -6,6 +6,7 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
+	"os"
 	"regexp"
 	"testing"
 	"time"
@@ -553,19 +554,39 @@ func (m ConnPoolLastInsertIDMock) ExecContext(ctx context.Context, query string,
 }
 
 func TestCreateWithDisableLastInsertID(t *testing.T) {
-	rawPool := DB.ConnPool
-	DB.ConnPool = ConnPoolLastInsertIDMock{rawPool}
-	defer func() {
-		DB.ConnPool = rawPool
-	}()
+	mockCreateSupportReturning := func() func() {
+		revertCreateSupportReturning := func() {
+			os.Setenv("GORM_E2E_TEST_MOCK_CREATE_RETURNING", "")
+		}
+
+		os.Setenv("GORM_E2E_TEST_MOCK_CREATE_RETURNING", "false")
+		return revertCreateSupportReturning
+	}
+
+	mockConnPoolExec := func() func() {
+		rawPool := DB.ConnPool
+		DB.ConnPool = ConnPoolLastInsertIDMock{rawPool}
+		rawStatementPool := DB.Statement.ConnPool
+		DB.Statement.ConnPool = ConnPoolLastInsertIDMock{rawStatementPool}
+		return func() {
+			DB.ConnPool = rawPool
+			DB.Statement.ConnPool = rawStatementPool
+		}
+	}
+
+	defer mockCreateSupportReturning()()
+	defer mockConnPoolExec()()
 
 	user := &User{Name: "TestCreateWithDisableLastInsertID"}
 	err := DB.Create(&user).Error
-	if err == nil {
+	if DB.RowsAffected > 0 && err == nil {
 		t.Fatalf("it should be error")
 	}
 
 	DB.DisableLastInsertID = true
+	defer func() {
+		DB.DisableLastInsertID = false
+	}()
 	err = DB.Create(&user).Error
 	if err != nil {
 		t.Fatalf("it should be nil")