软件测试之Android单元测试

　　* adb shell am instrument \

　　* -e class com.android.camera.stress.SwitchPreview \

　　* -w com.android.camera.tests/com.android.camera.CameraStressTestRunner

　　*

　　*/

　　public class SwitchPreview extends ActivityInstrumentationTestCase2 {

　　private String TAG = "SwitchPreview";

　　private static final int TOTAL_NUMBER_OF_SWITCHING = 200;

　　private static final long WAIT_FOR_PREVIEW = 2000;

　　public SwitchPreview() {

　　super("com.android.camera", VideoCamera.class);

　　}

　　@Override

　　protected void setUp() throws Exception {

　　getActivity();

　　super.setUp();

　　}

　　@Override

　　protected void tearDown() throws Exception {

　　getActivity().finish();

　　super.tearDown();

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