public void ShouldReturnEmptyStringIfValueIsNull()
{
ErrorConverter converter = new ErrorConverter();
object errors = null;
object result = converter.Convert(errors, null, null, null);
Assert.AreEqual(string.Empty, result);
}
public void ShouldReturnEmptyStringIfCollectionIsEmpty()
{
ErrorConverter converter = new ErrorConverter();
List<ValidationError> errors = new List<ValidationError>();
object result = converter.Convert(errors.AsReadOnly(), null, null, null);
Assert.AreEqual(string.Empty, result);
}
public void ShouldReturnEmptyStringIfCollectionIsEmpty()
{
ErrorConverter converter = new ErrorConverter();
ObservableCollection<ValidationError> value = new ObservableCollection<ValidationError>();
object result = converter.Convert(value, null, null, null);
Assert.AreEqual(string.Empty, result);
}
public void ShouldReturnTheInnerExceptionMessageOfATargetInvocationException()
{
ErrorConverter converter = new ErrorConverter();
List<ValidationError> errors = new List<ValidationError>();
ValidationError error = new ValidationError(new ExceptionValidationRule(), new object());
error.Exception = new TargetInvocationException(null, new Exception("TestError"));
errors.Add(error);
object result = converter.Convert(errors.AsReadOnly(), null, null, null);
Assert.AreEqual("TestError", result);
}
public void ShouldReturnTheErrorContentOfTheFirstItemInTheCollection()
{
ErrorConverter converter = new ErrorConverter();
List<ValidationError> errors = new List<ValidationError>();
ValidationError error = new ValidationError(new ExceptionValidationRule(), new object());
error.ErrorContent = "TestError";
errors.Add(error);
object result = converter.Convert(errors.AsReadOnly(), null, null, null);
Assert.AreEqual("TestError", result);
}