Question

我正在尝试测试RecyclerView项目中的视图。单独运行测试时，所有这些都可以正常工作，但是尝试测试整个类时，我会得到

java.lang.Exception：没有可运行的方法

我创建了一个帮助器类以单击指定的视图：（在androidTest目录中）

public class RecyclerViewTools {

/**
 * This method clicks a specified view in RecyclerView's item
 * @param id position of item to perform click
 */
public ViewAction clickChildWithId(final int id){
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return null;
        }

        @Override
        public String getDescription() {
            return null;
        }

        @Override
        public void perform(UiController uiController, View view) {
            View v = view.findViewById(id);
            v.performClick();
        }
    };
}}

和我在另一堂课中的测试

@RunWith(AndroidJUnit4.class)
public class MainActivityTest {

private RecyclerViewTools recyclerViewTools;

@Rule
public ActivityTestRule rule = new ActivityTestRule<>(MainActivity.class);

@Before
public void setUp(){
    recyclerViewTools = new RecyclerViewTools();
}

@After
public void tearDown(){
    recyclerViewTools = null;
}

/*
 * This tests check if all buttons in recyclerview are working properly
 * Shorten variables:
 * ToggleButton -tbn
 */

@Test
public void TBNs_isChecked(){
    onView(withId(R.id.recylerview_alarms))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.monday_togglebutton)))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.tuesday_togglebutton)))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.wednesday_togglebutton)))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.thursday_togglebutton)))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.friday_togglebutton)))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.saturday_togglebutton)))
            .perform(RecyclerViewActions.actionOnItemAtPosition(0,
                    recyclerViewTools.clickChildWithId(R.id.sunday_togglebutton)));
}


// Check if switch is being checked
@Test
public void switch_isChecked(){
    onView(withId(R.id.recylerview_alarms))
            .perform(RecyclerViewActions.actionOnItemAtPosition
                    (0, recyclerViewTools.clickChildWithId(R.id.enable_switch)));
}}

如我所读，问题的根源可能是使用静态方法（当时是clickChildWithId(id)，我决定每次运行测试时都要初始化该类。唯一的问题，我可以看到并拥有不知道如何避免它，是返回ViewAction的辅助方法。

我该怎么解决我的问题？

尝试测试整个类时，没有可运行的方法，尽管每个测试在单独运行时都会通过

0 个答案: