seeInField with radio buttons

[ThomasLandauer]

Some suggestions/questions for seeInField:

1. Even if not explicitly mentioned at http://codeception.com/docs/modules/WebDriver#seeInField it works for radio buttons too? And probably select's and checkbox'es too?

2. For radio buttons, you need to pass the value as second argument:

   $I->seeInField('.gender', 1);
   

   ...which isn't very readable ;-) So I'm suggesting a method to assert a radio button's value by its label - something like:

   $I->seeRadioSelected('.gender', 'female');
   

3. How can you assert that no radio button is selected? I tried seeInField with null or '' as second argument - both didn't work. So I'm suggesting to include that too.