ket[constants[i]]; // should be ignored, has { DontDelete }
    delete WebSocket.prototype[constants[i]]; // should be ignored, has { DontDelete }
    delete ws[constants[i]]; // should be ignored, there is no such property on the object
    assert_equals(WebSocket[constants[i]], i, 'WebSocket.'+constants[i]);
    assert_equals(WebSocket.prototype[constants[i]], i, 'WebSocket.prototype.'+constants[i]);
    assert_equals(ws[constants[i]], i, 'ws.'+constants[i]);
  })
};
</script>
