public void PropagateChildErrors_WithInvalidChildren_ParentHasError()
{
var error = "Child records are invalid";
var validItem = new ChildVM();
var invalidItem = new ChildVM();
var childDescriptor = CreateChildDescriptor(b => b.CheckViewModel(args => {
if (args.Target == invalidItem)
{
args.AddError("Item error");
}
}));
ParentVM vm = CreateParent(b => b.PropagateChildErrors(error), childDescriptor);
vm.Children.Add(validItem);
ValidationAssert.IsValid(vm.ValidationResult);
vm.Children.Add(invalidItem);
var actualParentValidationState = vm.GetValidationResult(ValidationResultScope.Self);
ValidationAssert.ErrorMessages(actualParentValidationState, error);
}
