We want our students to be thoughtful on when they take their Content Assessments (CAs), and only take one when they feel they understand their content and are ready.
If you know your student is going to be taking a CA, ask him/her what strategies they are using to prepare for it. If they just took one and passed, celebrate his/her success by reflecting with him/her on what made him/her successful. If they did not pass, spend time together reflecting on what s/he can do differently to learn the content before they take the CA again. Ultimately, we value the growth of our students - in cognitive skills, content knowledge and habits of success - and this is all a healthy part of their learning process.