我的QThread完成了，但我无法得到信号

我的QThread的run方法正在结束，但是我无法获得信号

完整代码如下:

我的线程头:

#ifndef MYTHREAD_H
#define MYTHREAD_H
#include <QThread>
#include <QDebug>
#include "mydataobject.h"
class MyThread: public QThread
{
    Q_OBJECT
public:
    MyThread(MyDataObject data,
             bool useData);
private:
    void run();
signals:
    void resultsReady(MyDataObject data);
private:
    MyDataObject data;
    bool useData;
};
#endif // MYTHREAD_H

#include "mythread.h"
MyThread::MyThread(MyDataObject data, bool useData)
{
    this->data = data;
    this->useData = useData;
}
void MyThread::run()
{
    if( useData )
    {
        data.calculate(); // Do something
    }
    emit resultsReady(data);
    qDebug() << "Thread finished";
}

我的测试头:

#ifndef THREADTESTER_H
#define THREADTESTER_H
#include <QDebug>
#include "mythread.h"
class ThreadTester: public QObject
{
    Q_OBJECT
public:
    ThreadTester();
    void runTests();
public slots:
    void threadFinished(MyDataObject data);
private:
    MyDataObject data;
};
#endif // THREADTESTER_H

#include "threadtester.h"
ThreadTester::ThreadTester(){}
void ThreadTester::runTests()
{
    qRegisterMetaType<MyDataObject>("MyDataObject");
    MyDataObject data;
    MyThread* thread = new MyThread(data, true);
    connect(thread, SIGNAL(resultsReady(MyDataObject)),
            this, SLOT(threadFinished(MyDataObject)));
    thread->start();
    thread->wait();
}
void ThreadTester::threadFinished(MyDataObject data)
{
    qDebug() << "TEST";
    this->data = data;
}

主要功能:

#include <QApplication>
#include "threadtester.h"
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    ThreadTester threadTester;
    threadTester.runTests();
    return a.exec();
}

注意:出现了"Thread finished"消息，但没有出现"TEST"消息