text:   function testcase() 
    {
      var desc = Object.getOwnPropertyDescriptor(Math, "round");
      if (desc.value === Math.round && desc.writable === true && desc.enumerable === false && desc.configurable === true)
      {
        return true;
      }
    }
    {
      var __result1 = testcase();
      var __expect1 = true;
    }
    