public void ReturnFalseAndUnmatchMessage_WhenArgumentContainsNonWhiteSpaceChars()
{
// Arrange.
string value = " \r\nasdf";
// Act.
IValidationPredicateResult result = StringNullOrWhiteSpaceValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value < \r\nasdf> is neither null nor an empty string, nor consists only of white space characters.", result.Message);
}
}