public void ToString_returns_success_for_unit_result()
{
UnitResult <ErrorType> result = Result.Success <ErrorType>();
Assert.Equal("Success", result.ToString());
}
public void ToString_returns_failure_with_generic_error_when_unit_result_failure()
{
UnitResult <ErrorType> subject = UnitResult.Failure(ErrorType.Error1);
Assert.Equal("Failure(Error1)", subject.ToString());
}