public void IsValid_WithInvalidFormat_ThrowsFormatException(string nit)
{
//Arrange
var validator = new CuiValidator();
//Act
TestDelegate actionToExecute = () => validator.IsValid(nit);
//Assert
Assert.That(actionToExecute, Throws.TypeOf <FormatException>());
}
public void IsValid_WithValidFormat_CheckResults(string cui, bool expectedResult)
{
//Arrange
CuiValidator validator = new CuiValidator();
//Act
bool result = validator.IsValid(cui);
//Assert
Assert.AreEqual(expectedResult, result);
}
public void IsValid_WithNullCui_ThrowsArgumentNullException()
{
//Arrange
var validator = new CuiValidator();
//Act
TestDelegate actionToExecute = () => validator.IsValid(null);
//Assert
Assert.That(actionToExecute, Throws.InstanceOf <ArgumentNullException>().And.Message.ContainsSubstring("cui"));
}