1 function QVERIFY(x, debugInfo) {

     2     if (!(x)) {

     3         print(debugInfo);

     4         throw(debugInfo);

     5     }

     6 }

     7 

     8 var lock = new ScriptSystemLock;

     9 lock.setKey("market");

    10 QVERIFY(lock.lock());

    11 QVERIFY(lock.unlock());