public void ReturnFalseAndUnmatchMessage_WhenArgumentIsNotDoubleNaN()
{
// Arrange.
float value = 5;
// Act.
IValidationPredicateResult result = FloatNaNValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <5> is not NaN.", result.Message);
}
}