def test_does_not_start_with_throws_error_on_invalid_value(value: str, starts_with: str):
"""
Tests that the `does_not_start_with()` method throws an ArgumentError
when the value starts with the specified value.
"""
# Arrange
validator = StringValidator(value, 'value')
# Assert
with pytest.raises(ArgumentError):
# Act
validator.does_not_start_with(starts_with)
def test_does_not_start_with_accepts_valid_value(value: str, starts_with: str):
"""
Tests that the `does_not_start_with()` method does not throw an ArgumentError
when the value does not start with the specified value.
"""
# Arrange
validator = StringValidator(value, 'value')
# Act
try:
validator.does_not_start_with(starts_with)
# Assert
except ArgumentError:
pytest.fail(f'`{value}` should not start with `{starts_with}`, but an error occurred.')
def test_does_not_start_with_returns_validator_self():
"""
Tests if the `does_not_start_with()` validator method returns itself after the validation is performed,
so that additional validations can be performed.
"""
# Arrange
value = '1234'
starts_with = 'test'
validator = StringValidator(value, 'value')
# Act
validator_returned = validator.does_not_start_with(starts_with)
# Assert
assert validator_returned is validator
