def test_is_equal_throws_error_on_non_identical_object():
"""
Tests that the `is_equal_to()` method throws an ArgumentError
when the object is not identical to the supplied object.
"""
# Arrange
actual = TypeExample()
expected = TypeExample2()
validator = ObjectValidator(actual, 'actual')
# Assert
with pytest.raises(ArgumentError):
# Act
validator.is_equal_to(expected)
def test_is_equal_to_accepts_identical_object():
"""
Tests that the `is_equal_to()` method does not throw an ArgumentError
when the object is identical to the supplied object.
"""
# Arrange
actual = TypeExample()
expected = TypeExample()
validator = ObjectValidator(actual, 'actual')
# Act
try:
validator.is_equal_to(expected)
# Assert
except ArgumentError:
pytest.fail(f'`{actual.__class__.__name__}` should be equal to `{expected.__class__.__name__}`, but an error occurred')
def test_is_equal_returns_validator_self():
"""
Tests if the `is_equal_to()` validator method returns itself after the validation is performed,
so that additional validations can be performed.
"""
actual = TypeExample()
expected = TypeExample()
validator = ObjectValidator(actual, 'actual')
# Act
validator_returned = validator.is_equal_to(expected)
# Assert
assert validator_returned is validator