How to set react props in Testcafe

I am trying to test a react component that has a properties that changes when the user logs in. I can't change the login prop from the testcafe suite itself because the user can only login clicking on a magic link that she receives on her email.

Given the example component below, how can I test the Logout button?

Test cafe will always see the isLoggedIn prop as false and it doesn't allow to set components props to some custom value while testing.

const Header = ({ isLoggedIn }) => (
  <div>
    {isLoggedIn ? (
      <button onClick={login}>Login</button>
    ) : (
        <button onClick={logout}>Logout</button>
      )}
  </div>
);