def test_does_not_end_with_throws_error_on_invalid_value(value: str, ends_with: str):
    """
    Tests that the `does_not_end_with()` method throws an ArgumentError
    when the value ends with the specified value.
    """
    # Arrange
    validator = StringValidator(value, 'value')

    # Assert
    with pytest.raises(ArgumentError):
        # Act
        validator.does_not_end_with(ends_with)
def test_does_not_end_with_accepts_valid_value(value: str, ends_with: str):
    """
    Tests that the `does_not_end_with()` method does not throw an ArgumentError
    when the value does not end with the specified value.
    """
    # Arrange
    validator = StringValidator(value, 'value')

    # Act
    try:
        validator.does_not_end_with(ends_with)
    # Assert
    except ArgumentError:
        pytest.fail(f'`{value}` should not end with `{ends_with}`, but an error occurred.')
def test_does_not_end_with_returns_validator_self():
    """
    Tests if the `does_not_end_with()` validator method returns itself after the validation is performed,
    so that additional validations can be performed.
    """
    # Arrange
    value = 'Hello World'
    ends_with = 'Hello'
    validator = StringValidator(value, 'value')

    # Act
    validator_returned = validator.does_not_end_with(ends_with)

    # Assert
    assert validator_returned is validator