t.Fatalf("invalid %v count %v, expects: %v got %v", name, reason, result, count)
	}

	var newUser User
	if user, ok := data.(User); ok {
		DB.Find(&newUser, "id = ?", user.ID)
	} else if user, ok := data.(*User); ok {
		DB.Find(&newUser, "id = ?", user.ID)
	}

	if newUser.ID != 0 {
		if count := DB.Model(&newUser).Association(name).Count(); count != result {

		languages = append(languages, language)
	}

	user := User{}
	db.Create(&user)
	db.Preload("Languages").FirstOrCreate(&user)

	var wg sync.WaitGroup
	for i := 0; i < count; i++ {
		wg.Add(1)
		go func(user User, language Language) {
			err := db.Model(&user).Association("Languages").Append(&language)
			AssertEqual(t, err, nil)

			wg.Done()
		}(user, languages[i])
	}
	wg.Wait()

	var find User

			if err := tx.First(&User{}, "name = ?", user.Name).Error; err != nil {
				t.Fatalf("Should find saved record")
			}

			panic("force panic")
		})
	})

	if err := DB.First(&User{}, "name = ?", "transaction-block-3").Error; err == nil {
		t.Fatalf("Should not find record after panic rollback")
	}
}

func TestTransactionRaiseErrorOnRollbackAfterCommit(t *testing.T) {
	tx := DB.Begin()
	user := User{Name: "transaction"}

	case "mysql", "sqlserver":
		// these dialects do not support the "returning" clause
		return
	default:
		// This user struct will leverage the existing users table, but override
		// the Name field to default to null.
		type user struct {
			gorm.Model
			Name string `gorm:"default:null"`
		}
		u1 := user{}

		if results := DB.Create(&u1); results.Error != nil {
			t.Fatalf("errors happened on create: %v", results.Error)

		}
	}

	for _, user := range []User{users[0], users[2]} {
		result = User{}
		if err := DB.Where("id = ?", user.ID).First(&result).Error; err != nil {
			t.Errorf("no error should returns when query %v, but got %v", user.ID, err)
		}
	}

	if err := DB.Delete(&users[0]).Error; err != nil {
		t.Errorf("errors happened when delete: %v", err)
	}

    }

    @Test
    @DisplayName("handle: empty user/domain edge yields '@' and null password")
    void testHandleWithEmptyUserAndDomainEdge() throws Exception {
        // Default constructor results in empty strings for user and domain, null for password
        JAASAuthenticator auth = new JAASAuthenticator();
        NameCallback nc = new NameCallback("user:");
        PasswordCallback pc = new PasswordCallback("pass:", false);

    }

    /**
     * Saves the login history for the given user.
     * This operation is performed asynchronously.
     *
     * @param user the user entity
     * @param userBean the user bean
     * @param option the login specified option
     */
    @Override
    protected void saveLoginHistory(final FessUser user, final FessUserBean userBean, final LoginSpecifiedOption option) {

    }

    /**
     * Adds user attributes to the LDAP entry for user creation.
     *
     * @param entry the BasicAttributes to add user attributes to
     * @param user the user object containing attribute values
     */
    protected void addUserAttributes(final BasicAttributes entry, final User user) {
        entry.put(new BasicAttribute("cn", user.getName()));

minio server /mnt/data
```

### 5. Test with a regular IAM user

Ensure that `mc` is installed and the configured with the above server with the alias `myminio`.

```sh
# 1. Create a bucket and a user, and upload a file. These operations will succeed.
mc mb myminio/test
mc admin user add myminio foo foobar123
mc cp /etc/issue myminio/test/

# 2. Now access the server as user `foo`. These operations will also succeed.

    }

    /**
     * The unique identifier of the user being edited.
     * This is a required field for identifying which user to update.
     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The version number of the user for optimistic locking.
     * This field is required to prevent concurrent modification conflicts
     * by ensuring the user hasn't been modified by another process.
     */