public void ReturnTrueAndMatchMessage_WhenBoundIsNullAndArgumentIsNotNull()
{
// Arrange.
NotEqualValidationPredicate<string> validationPredicate = new NotEqualValidationPredicate<string>(null);
// Act.
IValidationPredicateResult result = validationPredicate.Match("a");
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <a> is not equal to <null>.", result.Message);
}