var user *User

	err := DB.Create(user).Error
	if err == nil || err != gorm.ErrInvalidValue {
		t.Fatalf("it is not ErrInvalidValue")
	}
}

func TestFirstOrCreateRowsAffected(t *testing.T) {
	user := User{Name: "TestFirstOrCreateRowsAffected"}

	res := DB.FirstOrCreate(&user, "name = ?", user.Name)
	if res.Error != nil || res.RowsAffected != 1 {