undefined

---

assert user  # Line 5

def test_user_creation_with_valid_data_persists_to_database():
    """Creating a user with valid email and password should:
    1. Create user object with correct attributes
    2. Save to database
    3. Hash password (not store plaintext)
    4. Set default role and active status
    """
    email = "test@example.com"
    password = "SecurePass123!"

    user = create_user(email, password)

    # Verify user object
    assert user.id is not None, "User should have an ID after creation"
    assert user.email == email, "Email should match input"
    assert user.is_active is True, "New users should be active by default"
    assert user.role == "user", "New users should have 'user' role"
    assert user.created_at is not None, "Created timestamp should be set"

    # Verify password is hashed, not plaintext
    assert user.password_hash != password, "Password should be hashed"
    assert len(user.password_hash) > 50, "Password hash should be substantial"

    # Verify persistence
    retrieved_user = User.get_by_email(email)
    assert retrieved_user is not None, "User should be retrievable from database"
    assert retrieved_user.id == user.id, "Retrieved user should match created user"

def test_user_creation_with_invalid_email_format_raises_validation_error():
    """Creating a user with malformed email should raise ValidationError"""
    invalid_emails = [
        "not-an-email",
        "@example.com",
        "test@",
        "test space@example.com",
        "",
    ]

    for invalid_email in invalid_emails:
        with pytest.raises(ValidationError) as exc:
            create_user(invalid_email, "password123")

        assert "email" in str(exc.value).lower()
        assert "invalid" in str(exc.value).lower()

def test_user_creation_with_weak_password_raises_validation_error():
    """Creating a user with weak password should raise ValidationError"""
    weak_passwords = [
        "123",          # Too short
        "password",     # No numbers
        "12345678",     # No letters
        "",             # Empty
    ]

    for weak_password in weak_passwords:
        with pytest.raises(ValidationError) as exc:
            create_user("test@example.com", weak_password)

        assert "password" in str(exc.value).lower()

assert result  # Line 11

@pytest.fixture
def registered_user():
    """Fixture providing a registered user for login tests"""
    user = create_user("test@example.com", "SecurePass123!")
    yield user
    # Cleanup if needed
    User.delete(user.id)

def test_login_with_valid_credentials_returns_authenticated_session(registered_user):
    """Logging in with correct email and password should:
    1. Return authentication token/session
    2. Set authenticated state
    3. Include user context
    4. Set appropriate expiry
    """
    session = login(registered_user.email, "SecurePass123!")

    assert session is not None, "Login should return session"
    assert session.is_authenticated is True, "Session should be authenticated"
    assert session.user_id == registered_user.id, "Session should contain user ID"
    assert session.token is not None, "Session should have authentication token"
    assert session.expires_at > datetime.now(), "Session should have future expiry"
    assert (session.expires_at - datetime.now()).seconds >= 3600, "Session should last at least 1 hour"

def test_login_with_wrong_password_raises_authentication_error(registered_user):
    """Logging in with incorrect password should raise AuthenticationError"""
    with pytest.raises(AuthenticationError) as exc:
        login(registered_user.email, "WrongPassword")

    assert "Invalid credentials" in str(exc.value)
    assert "password" in str(exc.value).lower()

def test_login_with_nonexistent_email_raises_authentication_error():
    """Logging in with non-existent email should raise AuthenticationError"""
    with pytest.raises(AuthenticationError) as exc:
        login("doesnotexist@example.com", "password")

    assert "Invalid credentials" in str(exc.value)
    # Note: Don't reveal if email exists (security)

def test_login_with_locked_account_raises_account_locked_error(registered_user):
    """Logging in to locked account should raise AccountLockedError"""
    lock_account(registered_user.id)

    with pytest.raises(AccountLockedError) as exc:
        login(registered_user.email, "SecurePass123!")

    assert registered_user.email in str(exc.value)

def test_login_with_empty_password_raises_validation_error(registered_user):
    """Logging in with empty password should raise ValidationError"""
    with pytest.raises(ValidationError) as exc:
        login(registered_user.email, "")

    assert "password" in str(exc.value).lower()
    assert "required" in str(exc.value).lower()

user2 = create_user("test@example.com", "password456")
assert user2  # Line 17

def test_create_user_with_duplicate_email_raises_integrity_error():
    """Creating a user with an email that already exists should:
    1. Raise IntegrityError or ValidationError
    2. Not create duplicate user in database
    3. Preserve existing user data
    """
    email = "test@example.com"

    # Create first user
    user1 = create_user(email, "FirstPassword123!")
    initial_count = User.count()

    # Attempt to create duplicate
    with pytest.raises((IntegrityError, ValidationError)) as exc:
        create_user(email, "SecondPassword456!")

    assert "email" in str(exc.value).lower()
    assert "duplicate" in str(exc.value).lower() or "exists" in str(exc.value).lower()

    # Verify no new user created
    assert User.count() == initial_count, "User count should not increase"

    # Verify original user unchanged
    original_user = User.get_by_email(email)
    assert original_user.id == user1.id, "Original user should be intact"
    assert original_user.verify_password("FirstPassword123!"), "Original password should work"
    assert not original_user.verify_password("SecondPassword456!"), "New password should not work"

undefined

See the Test-Driven Development skill for complete TDD workflow (available in the skill library for comprehensive TDD guidance).

---