return s, s.err
	}

	modelValue := reflect.New(modelType)
	tableName := namer.TableName(modelType.Name())
	if tabler, ok := modelValue.Interface().(Tabler); ok {
		tableName = tabler.TableName()
	}
	if tabler, ok := modelValue.Interface().(TablerWithNamer); ok {
		tableName = tabler.TableName(namer)
	}
	if en, ok := namer.(embeddedNamer); ok {
		tableName = en.Table
	}

			found = true
			break
		}
	}
	if !found {
		t.Fatal("postgres driver not registered")
	}
}

func TestPsqlTableNameValidation(t *testing.T) {
	validTables := []string{"táblë", "table", "TableName", "\"Table name\"", "\"✅✅\"", "table$one", "\"táblë\""}
	invalidTables := []string{"table name", "table \"name\"", "✅✅", "$table$"}

	for _, name := range validTables {
		if err := validatePsqlTableName(name); err != nil {

		// If table is not empty, get table name from the first line
		lines := strings.Split(strings.Trim(table, "\n"), "\n")
		if len(lines) >= 1 && strings.HasPrefix(lines[0], "* ") {
			tableName := lines[0][2:]
			lines = append(lines, "COMMIT")
			tables[tableName] = strings.Join(lines, "\n")
		}
	}
	return tables
}

func refreshGoldens(t *testing.T, goldenFileName string, generatedRules map[string]string) {

	IdentifierMaxLength int
}

// TableName convert string to table name
func (ns NamingStrategy) TableName(str string) string {
	if ns.SingularTable {
		return ns.TablePrefix + ns.toDBName(str)
	}
	return ns.TablePrefix + inflection.Plural(ns.toDBName(str))
}

// SchemaName generate schema name from table name, don't guarantee it is the reverse value of TableName
func (ns NamingStrategy) SchemaName(table string) string {

import "database/sql"

// Index implements gorm.Index interface
type Index struct {
	TableName       string
	NameValue       string
	ColumnList      []string
	PrimaryKeyValue sql.NullBool
	UniqueValue     sql.NullBool
	OptionValue     string
}

// Table return the table name of the index.
func (idx Index) Table() string {
	return idx.TableName
}

// Name return the name of the index.
func (idx Index) Name() string {

		checkSchemaField(t, user, &fields[i], func(f *schema.Field) {
			f.Creatable = true
			f.Updatable = true
			f.Readable = true
		})
	}
}

type CustomizeTable struct{}

func (CustomizeTable) TableName() string {
	return "customize"
}

func TestCustomizeTableName(t *testing.T) {
	customize, err := schema.Parse(&CustomizeTable{}, &sync.Map{}, schema.NamingStrategy{})
	if err != nil {

	CustomSerializerString string                 `gorm:"serializer:custom"`
	EncryptedString        EncryptedString
}

func (*SerializerPostgresStruct) TableName() string { return "serializer_structs" }

func adaptorSerializerModel(s *SerializerStruct) interface{} {
	if DB.Dialector.Name() == "postgres" {
		sps := SerializerPostgresStruct(*s)
		return &sps
	}
	return s
}

				}

				if r.JoinTable.Table != relation.JoinTable.Table {
					t.Errorf("schema %v relation's join table tablename expects %v, but got %v", s, relation.JoinTable.Table, r.JoinTable.Table)
				}

				for i := range relation.JoinTable.Fields {
					checkSchemaField(t, r.JoinTable, &relation.JoinTable.Fields[i], nil)
				}
			}

	joinTable2 := ns.JoinTableName("UserLanguage")
	if joinTable2 != "public.user_language" {
		t.Errorf("invalid join table generated, got %v", joinTable2)
	}

	tableName := ns.TableName("Company")
	if tableName != "public.company" {
		t.Errorf("invalid table name generated, got %v", tableName)
	}

	columdName := ns.ColumnName("", "NameCID")
	if columdName != "name_cid" {
		t.Errorf("invalid column name generated, got %v", columdName)
	}
}

	}

	tableName := "null_string_model"

	DB.Migrator().DropTable(tableName)

	err := DB.Table(tableName).AutoMigrate(&NullModel{})
	AssertEqual(t, err, nil)

	// default null -> 'null'
	err = DB.Table(tableName).AutoMigrate(&NullStringModel{})
	AssertEqual(t, err, nil)

	columnType, err := findColumnType(tableName, "content")
	AssertEqual(t, err, nil)