public void ReturnTrueAndMatchMessage_WhenArgumentIsNotEqual()
{
// Arrange.
NotEqualValidationPredicate<int> validationPredicate = new NotEqualValidationPredicate<int>(3);
// Act.
IValidationPredicateResult result = validationPredicate.Match(5);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <5> is not equal to <3>.", result.Message);
}