def test_is_shorter_or_equal_throws_error_on_longer_length(value: str, max_length: int):
"""
Tests that the `is_shorter_or_equal()` method throws an ArgumentError
when it is supplied with a longer length.
"""
# Arrange
validator = StringValidator(value, 'value')
# Assert
with pytest.raises(ArgumentError):
# Act
validator.is_shorter_or_equal(max_length)
def test_is_shorter_or_equal_accepts_equal_length(value: str, max_length: int):
"""
Tests that the `is_shorter_or_equal()` method does not throw an ArgumentError
when it is supplied with a equal length.
"""
# Arrange
validator = StringValidator(value, 'value')
# Act
try:
validator.is_shorter_or_equal(max_length)
# Assert
except ArgumentError:
pytest.fail(f'`{value}` should be shorter or equal to `{max_length}`, but an error occurred.')
def test_is_shorter_or_equal_returns_validator_self():
"""
Tests if the `is_shorter_or_equal()` validator method returns itself after the validation is performed,
so that additional validations can be performed.
"""
# Arrange
value = 'test'
max_length = 10
validator = StringValidator(value, 'value')
# Act
validator_returned = validator.is_shorter_or_equal(max_length)
# Assert
assert validator_returned is validator