public static bool TryGetArgumentException <T>(this IValidatableArgument <T> @validatableArgument, out ArgumentException argumentException)
{
if (@validatableArgument == null)
{
throw new ArgumentNullException("@validatableArgument");
}
IValidationPredicateResult firstPredicateMatch =
validatableArgument.MatchValidationPredicates().Where(vp => vp.IsMatch).FirstOrDefault();
if (firstPredicateMatch == null)
{
argumentException = null;
return(false);
}
if (firstPredicateMatch.ValidationType == ValidationType.Range)
{
argumentException = new ArgumentOutOfRangeException(@validatableArgument.Name, firstPredicateMatch.Message);
}
else
{
if (validatableArgument.Value == null)
{
argumentException = new ArgumentNullException(@validatableArgument.Name, firstPredicateMatch.Message);
}
else
{
argumentException = new ArgumentException(firstPredicateMatch.Message, @validatableArgument.Name);
}
}
return(true);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsNotMemberOfTheEnum()
{
// Arrange.
CustomEnum value = (CustomEnum)5;
// Act.
IValidationPredicateResult result = MemberOfEnumValidationPredicate <CustomEnum> .Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <5> is not member of the enum <Bytes2you.Validation.UnitTests.Testing.Mocks.CustomEnum>.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsDoubleNaN()
{
// Arrange.
double value = double.NaN;
// Act.
IValidationPredicateResult result = DoubleNotNaNValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument is NaN.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenBoundIsDoublePositiveInfinityAndArgumentIsNegativeInfinity()
{
// Arrange.
EqualValidationPredicate <double> validationPredicate = new EqualValidationPredicate <double>(double.PositiveInfinity);
// Act.
IValidationPredicateResult result = validationPredicate.Match(double.NegativeInfinity);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <-Infinity> is not equal to <Infinity>.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenBoundIsNotNullAndArgumentIsNull()
{
// Arrange.
EqualValidationPredicate <string> validationPredicate = new EqualValidationPredicate <string>("a");
// Act.
IValidationPredicateResult result = validationPredicate.Match(null);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <null> is not equal to <a>.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsNotEqual()
{
// Arrange.
EqualValidationPredicate <int> validationPredicate = new EqualValidationPredicate <int>(3);
// Act.
IValidationPredicateResult result = validationPredicate.Match(5);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <5> is not equal to <3>.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenBoundIsFloatNegativeInfinityAndArgumentIsNegativeInfinity()
{
// Arrange.
EqualValidationPredicate <float> validationPredicate = new EqualValidationPredicate <float>(float.NegativeInfinity);
// Act.
IValidationPredicateResult result = validationPredicate.Match(float.NegativeInfinity);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is equal to <-Infinity>.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenBoundIsFloatPositiveInfinityAndArgumentIsNotInfinity()
{
// Arrange.
NotEqualValidationPredicate <float> validationPredicate = new NotEqualValidationPredicate <float>(float.PositiveInfinity);
// Act.
IValidationPredicateResult result = validationPredicate.Match(5);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <5> is not equal to <Infinity>.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentConsistsOnlyOfWhiteSpaceCharacters()
{
// Arrange.
string value = " \t\r\n ";
// Act.
IValidationPredicateResult result = StringNotNullOrWhiteSpaceValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument is null, an empty string or consists only of white space characters.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsNotDoubleInfinity()
{
// Arrange.
double value = 5;
// Act.
IValidationPredicateResult result = DoubleInfinityValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <5> is not infinity.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsDoubleNegativeInfinity()
{
// Arrange.
double value = double.NegativeInfinity;
// Act.
IValidationPredicateResult result = DoubleInfinityValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is infinity.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsNull()
{
// Arrange.
int?value = null;
// Act.
IValidationPredicateResult result = NullableNullValidationPredicate <int> .Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is null.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsNotNull()
{
// Arrange.
int?value = 5;
// Act.
IValidationPredicateResult result = NullableNullValidationPredicate <int> .Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <5> is not null.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsEmpty()
{
// Arrange.
string value = string.Empty;
// Act.
IValidationPredicateResult result = StringNotNullOrEmptyValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument is null or an empty string.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentHasElements()
{
// Arrange.
string value = "asdf";
// Act.
IValidationPredicateResult result = StringNotNullOrEmptyValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <asdf> is neither null nor an empty string.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsEmpty()
{
// Arrange.
int[] value = new int[] { };
// Act.
IValidationPredicateResult result = EnumerableNullOrEmptyValidationPredicate <int[]> .Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is null or empty.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenBoundIsFloatPositiveInfinityAndArgumentIsPositiveInfinity()
{
// Arrange.
NotEqualValidationPredicate <float> validationPredicate = new NotEqualValidationPredicate <float>(float.PositiveInfinity);
// Act.
IValidationPredicateResult result = validationPredicate.Match(float.PositiveInfinity);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument is equal to <Infinity>.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentContainsNonWhiteSpaceChars()
{
// Arrange.
string value = " \r\nasdf";
// Act.
IValidationPredicateResult result = StringNotNullOrWhiteSpaceValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value < \r\nasdf> is neither null nor an empty string, nor consists only of white space characters.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsEqual()
{
// Arrange.
EqualValidationPredicate <int> validationPredicate = new EqualValidationPredicate <int>(3);
// Act.
IValidationPredicateResult result = validationPredicate.Match(3);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is equal to <3>.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsFalse()
{
// Arrange.
bool value = false;
// Act.
IValidationPredicateResult result = TrueValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument is false.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenBoundIsFloatNegativeInfinityAndArgumentIsNotInfinity()
{
// Arrange.
EqualValidationPredicate <float> validationPredicate = new EqualValidationPredicate <float>(float.NegativeInfinity);
// Act.
IValidationPredicateResult result = validationPredicate.Match(5);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("Argument value <5> is not equal to <-Infinity>.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsNotNull()
{
// Arrange.
object value = new object();
// Act.
IValidationPredicateResult result = NotNullValidationPredicate <object> .Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <System.Object> is not null.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenBoundIsNullAndArgumentIsNull()
{
// Arrange.
EqualValidationPredicate <string> validationPredicate = new EqualValidationPredicate <string>(null);
// Act.
IValidationPredicateResult result = validationPredicate.Match(null);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is equal to <null>.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentIsNull()
{
// Arrange.
object value = null;
// Act.
IValidationPredicateResult result = NotNullValidationPredicate <object> .Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument is null.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenBoundIsDoublePositiveInfinityAndArgumentIsPositiveInfinity()
{
// Arrange.
EqualValidationPredicate <double> validationPredicate = new EqualValidationPredicate <double>(double.PositiveInfinity);
// Act.
IValidationPredicateResult result = validationPredicate.Match(double.PositiveInfinity);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is equal to <Infinity>.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsFloatNaN()
{
// Arrange.
float value = float.NaN;
// Act.
IValidationPredicateResult result = FloatNaNValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("The argument is NaN.", result.Message);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsNotDoubleNaN()
{
// Arrange.
double value = 5;
// Act.
IValidationPredicateResult result = DoubleNotNaNValidationPredicate.Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <5> is not NaN.", result.Message);
}
public void ReturnFalseAndUnmatchMessage_WhenArgumentHasElements()
{
// Arrange.
int[] value = new int[] { 3, 4, 5 };
// Act.
IValidationPredicateResult result = EnumerableNullOrEmptyValidationPredicate <int[]> .Instance.Match(value);
// Assert.
Assert.IsFalse(result.IsMatch);
Assert.AreEqual("The argument has elements.", result.Message);
}
public IEnumerable <IValidationPredicateResult> MatchValidationPredicates()
{
List <IValidationPredicateResult> validationPredicateResults = new List <IValidationPredicateResult>();
foreach (IValidationPredicate <T> validationPredicate in this.ValidationPredicates)
{
IValidationPredicateResult validationResult = validationPredicate.Match(this.Value);
validationPredicateResults.Add(validationResult);
}
return(validationPredicateResults);
}
public void ReturnTrueAndMatchMessage_WhenArgumentIsMemberOfTheEnum()
{
// Arrange.
CustomEnum value = CustomEnum.Value2;
// Act.
IValidationPredicateResult result = MemberOfEnumValidationPredicate <CustomEnum> .Instance.Match(value);
// Assert.
Assert.IsTrue(result.IsMatch);
Assert.AreEqual("Argument value <Value2> is member of the enum <Bytes2you.Validation.UnitTests.Testing.Mocks.CustomEnum>.", result.Message);
}
