public void ClearErrorsShouldRedirectCallToValidators() { ValidatableViewModel viewModel = GetValidatableViewModel(); var validator1 = viewModel.AddValidator <SpyValidator>(new object()); var validator2 = viewModel.AddValidator <SpyValidator>(new object()); viewModel.ClearErrors(); validator1.ClearAllErrorsCount.ShouldEqual(1); validator2.ClearAllErrorsCount.ShouldEqual(1); }