'Test lambda to compute the most restrictive ACL'

def testMostRestrictive(self):

    p = current.auth.permission
    self.assertEqual(p.most_restrictive([(p.NONE, p.READ), (p.READ, p.READ)]), (p.NONE, p.READ))
    self.assertEqual(p.most_restrictive([(p.CREATE, p.ALL), (p.READ, p.READ)]), (p.NONE, p.READ))
