def test_does_not_equal_throws_error_on_equal_value():
"""
Tests that the `does_not_equal()` method throws an ArgumentError
when the value is equal to the specified value.
"""
# Arrange
value = 'Hello World!'
validator = StringValidator(value, 'value')
# Assert
with pytest.raises(ArgumentError):
# Act
validator.does_not_equal(value)
def test_does_not_equal_accepts_notequal_value():
"""
Tests that the `does_not_equal()` method does not throw an ArgumentError
when the value is not equal to the specified value.
"""
# Arrange
value = 'Hello World!'
not_equals = 'Test'
validator = StringValidator(value, 'value')
# Act
try:
validator.does_not_equal(not_equals)
# Assert
except ArgumentError:
pytest.fail()
def test_does_not_equal_returns_validator_self():
"""
Tests if the `does_not_equal()` validator method returns itself after the validation is performed,
so that additional validations can be performed.
"""
# Arrange
value = 'test'
not_equal = 'Hello'
validator = StringValidator(value, 'value')
# Act
validator_returned = validator.does_not_equal(not_equal)
# Assert
assert validator_returned is validator