public function testEmptyEntitlement()
 {
     $s = new Entitlement();
     $this->assertTrue($s->isEmpty());
     $this->assertTrue($s->equals(new Entitlement()));
     $this->assertFalse($s->hasEntitlement(new Entitlement(array("foo"))));
     $this->assertTrue($s->hasEntitlement(new Entitlement()));
     $this->assertTrue($s->hasAnyEntitlement(new Entitlement()));
 }
 public function hasAnyEntitlement(Entitlement $that)
 {
     if ($that->isEmpty()) {
         return true;
     }
     foreach ($that->toArray() as $s) {
         if (in_array($s, $this->toArray())) {
             return true;
         }
     }
     return false;
 }