运行检测的片段测试用例时出错

Question

这是我用于测试类的代码

public class LoginActivityTest2 {

    String name = "suryansh mishra";

    @Rule
    public ActivityTestRule<SecondActivity> mActivityTestRule = new ActivityTestRule<>(SecondActivity.class, false);

    private SecondActivity mActivity = null;

    @Before
    public void setup() {
        mActivity = mActivityTestRule.getActivity();
    }

    /*   @Test
    public void checkUI(){

     //   mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().add(R.id.fragment_container, mFragment, null).commit();
      //  TextView mTextView = mActivityTestRule.getActivity().findViewById(R.id.textview_one);
       // assertEquals(InstrumentationRegistry.getTargetContext().getString(R.string.hello_blank_fragment),mTextView.getText().toString().trim());
        onView(withId(R.id.textview_one))
                .perform(typeText(name), closeSoftKeyboard());
    }
    */
    @Test
    public void checkUIOne() {

    /*ConstraintLayout rlContainer = (ConstraintLayout) mActivity.findViewById(R.id.fragment_container);
    Fragment fragment = new BlankFragment();
    mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().add(rlContainer.getId(), fragment).commitAllowingStateLoss();
//        View view = fragment.getView().findViewById(R.id.textview_two);*/
//     assertNotNull(view);
        TextView mTextView = mActivityTestRule.getActivity().findViewById(R.id.textview_one);
        final Button button = mActivityTestRule.getActivity().findViewById(R.id.click_perform);
        assertNotNull(mTextView);
        mTextView.setText("Hello blank fragment");
        assertEquals(InstrumentationRegistry.getTargetContext().getString(R.string.hello_blank_fragment), mTextView.getText().toString().trim());
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                openFragment();

            /*TextView anotherText = mActivityTestRule.getActivity().findViewById(R.id.another_text);
            assertEquals("message to another fragment",anotherText.getText().toString().trim());*/
            }
        });
        button.post(new Runnable() {
            @Override
            public void run() {
                button.performClick();
            }
        });
    /*try {
        Thread.sleep(3000);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }*/
        //  TextView anotherText = mActivityTestRule.getActivity().findViewById(R.id.another_text);
    }

    private void openFragment() {
        Bundle bundle = new Bundle();
        bundle.putString("edttext", "This is a text");
        Fragment fragment = new BlankFragmentTwo();
        fragment.setArguments(bundle);
        FragmentManager fm = mActivityTestRule.getActivity().getSupportFragmentManager();
        FragmentTransaction transaction = fm.beginTransaction();
        transaction.replace(R.id.fragment_container, fragment);
        transaction.commit();
    } 

每当我尝试运行此代码时，都会收到一个特定的错误消息。是否有任何特殊的方式可以使用片段UI在android中进行仪器化测试。它通常不显示任何视图，空指针异常或与onSaveInstance方法相关的错误

This is the actula error i am getting