if err := DB.AutoMigrate(&CustomizeFieldStruct{}); err != nil {
		t.Errorf("Failed to migrate, got error: %v", err)
	}

	if DB.Migrator().HasColumn(&CustomizeFieldStruct{}, "FieldIgnore") {
		t.Errorf("FieldIgnore should not be created")
	}

	if DB.Migrator().HasColumn(&CustomizeFieldStruct{}, "field_ignore") {
		t.Errorf("FieldIgnore should not be created")
	}

	generateStruct := func(name string) *CustomizeFieldStruct {

	// MigrateColumnUnique migrate column's UNIQUE constraint, it's part of MigrateColumn.
	MigrateColumnUnique(dst interface{}, field *schema.Field, columnType ColumnType) error
	HasColumn(dst interface{}, field string) bool
	RenameColumn(dst interface{}, oldName, field string) error
	ColumnTypes(dst interface{}) ([]ColumnType, error)

	// Views
	CreateView(name string, option ViewOption) error

		t.Fatalf("failed to auto migrate, got error: %v", err)
	}

	for _, name := range []string{"author_id", "author_name", "author_email"} {
		if !DB.Migrator().HasColumn(&EngadgetPost{}, name) {
			t.Errorf("should has prefixed column %v", name)
		}
	}

	stmt := gorm.Statement{DB: DB}
	if err := stmt.Parse(&EngadgetPost{}); err != nil {
		t.Fatalf("failed to parse embedded struct")