def test_is_equal_to_throws_error_on_invalid_value(value: number,
not_equal_to: number):
"""
Tests that the `is_equal()` method throws an ArgumentOutOfRangeError
when it is supplied with a value that is not equal to the equal value.
"""
# Arrange
validator = NumberValidator(value, "value")
# Assert
with pytest.raises(ArgumentOutOfRangeError):
# Act
validator.is_equal_to(not_equal_to)
def test_is_equal_to_accepts_valid_value(value: number, equal_to: number):
"""
Tests that the `is_equal()` method does not throw an ArgumentOutOfRangeError
when it is supplied with a value that is equal to the equal value.
"""
# Arrange
validator = NumberValidator(value, "value")
# Act
try:
validator.is_equal_to(equal_to)
# Assert
except ArgumentOutOfRangeError:
pytest.fail()
def test_is_equal_returns_validator_self():
"""
Tests if the `is_equal()` validator method returns itself after the validation is performed,
so that additional validations can be performed.
"""
# Arrange
validator = NumberValidator(5, "value")
# Act
validator_returned = validator.is_equal_to(5)
# Assert
assert validator_returned is validator