在jUnit中测试Android和simplecalc

我对jUnit中的测试有问题。 这是我的测试课：

public class MainActivityTest extends
        ActivityInstrumentationTestCase2<MainActivity> {
    Button button1, button2, button3, button4, button5, button6, button7, button8, button9, buttonResult, buttonPlus;
    EditText resultConsole;
    private static final String FIRSTVALUE = "12";
    private static final String SECONDVALUE = "21";
    private static final String RESULT = "33.0";
    MainActivity mainActivity;

    public MainActivityTest() {
        super("com.example.simpletest", MainActivity.class);
    }

    public void setUp() throws Exception {
        super.setUp();
            setActivityInitialTouchMode(false);
            mainActivity = getActivity();
            button1 = (Button) mainActivity.findViewById(R.id.button1);
            button2 = (Button) mainActivity.findViewById(R.id.button2);
            button3 = (Button) mainActivity.findViewById(R.id.button3);
            button4 = (Button) mainActivity.findViewById(R.id.button4);
            button5 = (Button) mainActivity.findViewById(R.id.button5);
            button6 = (Button) mainActivity.findViewById(R.id.button6);
            button7 = (Button) mainActivity.findViewById(R.id.button7);
            button8 = (Button) mainActivity.findViewById(R.id.button8);
            button9 = (Button) mainActivity.findViewById(R.id.button9);
            buttonResult = (Button) mainActivity.findViewById(R.id.buttonResult);
            buttonPlus = (Button) mainActivity.findViewById(R.id.buttonPlus);
            resultConsole = (EditText) mainActivity.findViewById(R.id.editText1);

    }
    String result;
    public void testPlus(){
            mainActivity.runOnUiThread(new Runnable() {

                @Override
                public void run() {
                    assertTrue(button1.performClick());
                    assertTrue(button2.performClick());
                    assertTrue(buttonPlus.performClick());
                    assertTrue(button2.performClick());
                    assertTrue(button1.performClick());
                    assertTrue(buttonResult.performClick());

                    result =  resultConsole.getText().toString();
                    assertTrue(!result.equals(0));
                    assertEquals(result, RESULT);


                }
            });


    }

}

这是一个简单的计算器。我想测试结果，并等于结果。要检查结果，我要单击按钮并检查editText中的文本。但是有点不对劲，因为即使我将

RESULT

设置为

22

上，我在

testPlus（）

中也没有得到错误。来自该方法的单击按钮后的结果应在33.0的编辑视图中设置文本，因此来自该方法的单击按钮后的文本和结果不同，所以测试不应通过。怎么了？

这是一个解决方案：

public void testPlus(){
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                assertTrue(button1.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(button2.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(buttonPlus.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(button2.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(button1.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(buttonResult.performClick());



            }
        });
        getInstrumentation().waitForIdleSync();
        String result =  resultConsole.getText().toString();
        assertTrue(!result.equals(0));

        assertEquals(RESULT, result);
}

public void testPlus(){
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                assertTrue(button1.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(button2.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(buttonPlus.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(button2.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(button1.performClick());


            }
        });
        getInstrumentation().waitForIdleSync();
        mainActivity.runOnUiThread(new Runnable() {

            @Override
            public void run() {

                assertTrue(buttonResult.performClick());



            }
        });
        getInstrumentation().waitForIdleSync();
        String result =  resultConsole.getText().toString();
        assertTrue(!result.equals(0));

        assertEquals(RESULT, result);
}