public void DataErrorInfoShouldGetErrorsFromValidators()
{
ValidatableViewModel viewModel = GetValidatableViewModel();
IDataErrorInfo dataErrorInfo = viewModel;
var validator = viewModel.AddValidator <SpyValidator>(viewModel);
IDataErrorInfo validatorErrorInfo = validator;
validator.SetErrors(PropToValidate1, PropToValidate1);
viewModel.OnPropertyChanged(PropToValidate1, ExecutionType.None);
string error = dataErrorInfo[PropToValidate1];
validator.ValidateCount.ShouldEqual(1);
validator.ValidateProperties.Contains(PropToValidate1).ShouldBeTrue();
error.ShouldEqual(PropToValidate1);
validator.SetErrors(PropToValidate1);
viewModel.OnPropertyChanged(PropToValidate1, ExecutionType.None);
error = validatorErrorInfo[PropToValidate1];
validator.ValidateCount.ShouldEqual(2);
error.ShouldBeNull();
}
