test case for HTML Select option spoofing

Hi experts,

My HTML blade for Select:

  @foreach(App\Model\Master\Country::all() as $country)
     <option value='{{$country->id}}'>
        {{$country->name}}
    </option>
 @endforeach

My validatoin rule:

'country' => ['required',new CountryRule],

This will return false if user enters(spoofs) incorrect id in HTML request. I can test it manually by entering incorrect id in the value of the selected option in HTML request.

But I want to create a test case with Dusk. How can I do it?