public void IsValidReturnsWhetherOrNotTheGivenPropertyIsNull()
{
IValidationRule <string> rule = new CannotBeNullRule <string, string>(s => s, string.Empty);
bool isValid = rule.IsValid(string.Empty);
bool isNullValid = rule.IsValid(null);
Assert.IsTrue(isValid);
Assert.IsFalse(isNullValid);
}
public void IsValidReturnsFalseWhenGivenObjectToValidateIsNull()
{
IValidationRule <string> rule = new CannotBeNullRule <string, string>(s => "Bob", string.Empty);
bool isValid = rule.IsValid(null);
Assert.IsFalse(isValid, "Null object returned true.");
}
