List<User> users = new ArrayList<>();

        // Create test users
        for (int i = 0; i < 10; i++) {
            users.add(createTestUser("user" + i, "User " + i));
        }

        // Perform sequential operations
        for (User user : users) {
            chain.update(user);
            chain.changePassword(user.getName(), "newpass" + user.getName());
            chain.load(user);

    public void test_load_noChains() {
        User user = createTestUser("testuser");
        User result = authenticationManager.load(user);
        assertEquals(user, result);
    }

    // Test load with single chain
    @Test
    public void test_load_singleChain() {
        User user = createTestUser("testuser");
        User loadedUser = createTestUser("loadeduser");

    // Helper method to create test user
    private User createTestUser(String username, String password) {
        User user = new User();
        user.setName(username);
        user.setPassword(password);
        user.setRoles(new String[] { "role1", "role2" });
        user.setGroups(new String[] { "group1", "group2" });
        return user;
    }

    // Test LdapManager implementation

	} else {
		CheckUser(t, result2, *user)
	}

	if err := DB.Model(user).Updates(User{Age: 2}).Error; err != nil {
		t.Errorf("errors happened when update: %v", err)
	} else if user.Age != 2 {
		t.Errorf("Age should equals to 2, but got %v", user.Age)
	}
	checkUpdatedAtChanged("Updates with struct", user.UpdatedAt)
	checkOtherData("Updates with struct")

	var result3 User

	type User struct {
		ID        int32 `gorm:"primaryKey"`
		Name      string
		CreatorID *int32
		Creator   *User
	}

	checkStructRelation(t, &User{}, Relation{
		Name: "Creator", Type: schema.BelongsTo, Schema: "User", FieldSchema: "User",
		References: []Reference{{"ID", "User", "CreatorID", "User", "", false}},
	})
}

func TestSelfReferentialBelongsToOverrideReferences(t *testing.T) {
	type User struct {

```JSON
{
  "detail": "Not authenticated"
}
```

### Inactive user { #inactive-user }

Now try with an inactive user, authenticate with:

User: `alice`

Password: `secret2`

And try to use the operation `GET` with the path `/users/me`.

You will get an "Inactive user" error, like:

```JSON
{
  "detail": "Inactive user"
}
```

## Recap { #recap }

		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"}

from datetime import datetime

from pydantic import BaseModel


class User(BaseModel):
    id: int
    name: str = "John Doe"
    signup_ts: datetime | None = None
    friends: list[int] = []


external_data = {
    "id": "123",
    "signup_ts": "2017-06-01 12:22",
    "friends": [1, "2", b"3"],
}
user = User(**external_data)
print(user)

     * Handles user authentication setup and database persistence.
     * If the surname is blank, it will be set to the user's name.
     *
     * @param user the user entity to store
     */
    public void store(final User user) {
        final String username = user.getName();
        final boolean isUpdate = StringUtil.isNotBlank(user.getId());

        if (logger.isDebugEnabled()) {