如何在Android中测试AlertDialog？

我正在尝试使用ActivityInstrumentationTestCase2测试AlertDialog.

这是原始代码：

this.setmBtAppelerFixe(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            AlertDialog.Builder dialog = new AlertDialog.Builder(InterventionImmobiliereDetailsActivity.this);
            dialog.setTitle("Appel");
            dialog.setMessage("Appeler le contact ?");
            dialog.setCancelable(true);
            dialog.setNegativeButton("Non",new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog,int which) {
                    dialog.dismiss();
                }
            });
            dialog.setPositiveButton("Oui",int which) {
                    InterventionImmobiliereDetailsActivity.this.lancerIntentAppel(mIntervention.getTelContact());
                }
            });

            mAdAppelerFixe = dialog.create();
            mAdAppelerFixe.show();
        }
    });

现在我无法点击正面按钮.此代码似乎不起作用：

mActivity.runOnUiThread(new Runnable() {
        @Override
        public void run() {
            assertTrue(mLLAppelerFixe.performClick());

            AlertDialog mDialog = mActivity.getAdAppelerFixe();
            assertTrue(mDialog.isShowing());

            Button okButton = mDialog.getButton(AlertDialog.BUTTON_POSITIVE);

            assertTrue(okButton.performClick());
            assertTrue(mActivity.isNumerovalide());
        }
    });

首先,我单击我的布局以打开AlertDialog.
然后我得到OK_BUTTON,然后点击它.它应该将numerovalide布尔值设置为true.
但没什么.

如何使用按钮简单地测试AlertDialog？

解决方法

这在我的nexus 4设备中完美运行：

@MediumTest
public void testStartMyActivity() {
    monitor = getInstrumentation().addMonitor(MyActivity.class.getName(),null,false);

    TouchUtils.clickView(this,startMyActivityButton);

    MyActivity myActivity = (MyActivity) monitor.waitForActivityWithTimeout(2000);
    assertNotNull("MyActivity activity not started,activity is null",myActivity);

    AlertDialog dialog = myActivity.getLastDialog(); // I create getLastDialog method in MyActivity class. Its return last created AlertDialog
    if (dialog.isShowing()) {
        try {
            performClick(dialog.getButton(DialogInterface.BUTTON_POSITIVE));
        } catch (Throwable e) {
            e.printstacktrace();
        }
    }

    myActivity.finish();
    getInstrumentation().removeMonitor(monitor);
}

private void performClick(final Button button) throws Throwable {
    runTestOnUiThread(new Runnable() {
        @Override
        public void run() {
            button.performClick();
        }
    });
    getInstrumentation().waitForIdleSync();
}

这里的示例测试AlertDialog(来自android google source)：
AlertDialogTest.java