$m_a->content_contains( 'root reminder', 'can see root reminder' );
$m_a->content_contains( 'user_a reminder', 'can see user_a reminder' );
$m_a->content_lacks( 'New reminder:', 'can not create a new reminder' );
$m_a->content_contains( 'root reminder', 'can see root reminder' );
$m_a->content_contains( 'user_a reminder', 'can see user_a reminder' );
$m_a->content_lacks( 'New reminder:', 'can not create a new reminder' );