public void ThenSuceedsWithValidCommand()
        {
            var cmd = BuildValidCommand();

            var result = _validator.Validate(cmd);

            Assert.That(result.IsValid, Is.True);
            Assert.That(result.Errors.Count, Is.EqualTo(0));
        }
        private static ValidationResult ValidateCommand(SendEmailCommand cmd)
        {
            var validator = new SendEmailCommandValidator();

            return(validator.Validate(cmd));
        }