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