Thank you for your answer Mike.
I didn't find out how could I try with Radio.onComponentTag, so I tried with
tagTester.
I think it could be a good solution, so I did that :
TagTester tagFemme =
tester.getTagByWicketId("formCreationQuestionnaire:genre:femme");
TagTester tagHomme =
tester.getTagByWicketId("formCreationQuestionnaire:genre:homme");
TagTester tagMixte =
tester.getTagByWicketId("formCreationQuestionnaire:genre:mixte");
Assert.assertNotNull(tagFemme);
Assert.assertTrue(tagFemme.hasAttribute("checked"));
Assert.assertFalse(tagHomme.hasAttribute("checked"));
Assert.assertFalse(tagMixte.hasAttribute("checked"));
but my tagTester are always null ! I checked path many times, and I tried
other way to instantiate tagTester, but without success.
I already used TagTester in other test before without problem, and I really
don't understand why it is always null here...