android - 如何使用 espresso 按下 AlertDialog 按钮

Question

我想使用 Espresso 按下面的按钮，但我不确定如何操作。我应该获取资源 ID 吗？或者如何给AlertDialog设置一个ID？？

@RunWith(AndroidJUnit4.class)
public class ApplicationTest {

@Rule
public ActivityTestRule<LoadingActivity> mActivityRule =
        new ActivityTestRule<>(LoadingActivity.class);

@Test
public void loginClickMarker() {
//Doesn't work:
    onView(withText("GA NAAR INSTELLINGEN")).perform(click());
}
}

public class PopupDialog {

public static void showGPSIsDisabled(Context context, String msg, final PopupDialogCallback popupDialogCallback) {
    new AlertDialog.Builder(context)
            .setTitle(context.getString(R.string.location_turned_off))
            .setMessage(msg)
            .setPositiveButton(context.getString(R.string.go_to_settings), new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                    popupDialogCallback.hasClicked();
                }
            }).show();
}
}

android.support.test.espresso.NoMatchingViewException:在层次结构中找不到匹配的 View :文本:是“GA NAAR INSTELLINGEN”

Answer 1

根据 StackOverflow 类似的问题:Check if a dialog is displayed with Espresso

你应该改变你的代码:

onView(withText("GA NAAR INSTELLINGEN")).perform(click());

到

onView(withText("GA NAAR INSTELLINGEN")))
    .inRoot(isDialog()) // <---
    .check(matches(isDisplayed()))
    .perform(click());

如果它不起作用，请不要费心使用 long 和 Espresso 另一个很棒的 Google 仪器测试，称为 uiatomator。

检查:http://qathread.blogspot.com/2015/05/espresso-uiautomator-perfect-tandem.html

示例代码:

// Initialize UiDevice instance
UiDevice uiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());

// Search for correct button in the dialog.
UiObject button = uiDevice.findObject(new UiSelector().text("GA NAAR INSTELLINGEN"));
if (button.exists() && button.isEnabled()) {
    button.click();
}

希望对你有帮助