public void IsValid_WithInvalidFormat_ThrowsFormatException(string nit)
{
//Arrange
NitValidator validator = new NitValidator();
//Act
TestDelegate actionToExecute = () => validator.IsValid(nit);
//Assert
Assert.That(actionToExecute, Throws.TypeOf <FormatException>().With.Message.ContainsSubstring("#######K"));
}
public void IsValid_WithValidFormat_CheckResults(string nit, bool expectedResult)
{
//Arrange
NitValidator validator = new NitValidator();
//Act
bool result = validator.IsValid(nit);
//Assert
Assert.AreEqual(expectedResult, result);
}
public void IsValid_WithNullNit_ThrowsArgumentNullException()
{
//Arrange
string nit = null;
NitValidator validator = new NitValidator();
//Act
TestDelegate actionToExecute = () => validator.IsValid(nit);
//Assert
Assert.That(actionToExecute, Throws.TypeOf <ArgumentNullException>().With.Message.ContainsSubstring("nit"));
}