ProgressBars和Espresso

Question

当我在运行一些espresso测试时显示的布局中有ProgressBar时,我会遇到:

Caused by: android.support.test.espresso.AppNotIdleException: Looped for 1670 iterations over 60 SECONDS. The following Idle Conditions failed .

解决这个问题的好方法是什么？找到一些hackish东西,但寻找一个很好的方式

Answer 1

如果在ProgressBar测试开始时它是不可见的,则Drawable可以用自定义替换ViewAction:

// Replace the drawable with a static color
onView(isAssignableFrom(ProgressBar.class)).perform(replaceProgressBarDrawable());

// Click a button (that will make the ProgressBar visible)
onView(withText("Show ProgressBar").perform(click());

习俗ViewAction:

public static ViewAction replaceProgressBarDrawable() {
    return actionWithAssertions(new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return isAssignableFrom(ProgressBar.class);
        }

        @Override
        public String getDescription() {
            return "replace the ProgressBar drawable";
        }

        @Override
        public void perform(final UiController uiController, final View view) {
            // Replace the indeterminate drawable with a static red ColorDrawable
            ProgressBar progressBar = (ProgressBar) view;
            progressBar.setIndeterminateDrawable(new ColorDrawable(0xffff0000));
            uiController.loopMainThreadUntilIdle();
        }
    });
}

Answer 2

我也有同样的问题.我无法找到一个完全优雅的解决方案,但我也会发布我的方法.

我试图做的是覆盖indeterminateDrawableProgressBar上的.当具有简单的可绘制时,不会发生动画并且Espresso测试不会遇到空闲问题.

不幸的是main,androidTest对待它们.我没有找到覆盖ProgressBar样式的方法.

它现在最终结合了https://gist.github.com/Mauin/62c24c8a53593c0a605e#file-progressbar-java中的一些想法以及如何检测Android应用程序是否正在使用Espresso运行UI测试.

起初我创建了自定义ProgressBar类,一个用于调试,一个用于发布.发布版本只调用超级构造函数而不执行任何其他操作.调试版本会覆盖该方法setIndeterminateDrawable.有了这个,我可以设置一个简单的drawable而不是动画.

发行代码:

public class ProgressBar extends android.widget.ProgressBar {

  public ProgressBar(Context context) {
    super(context);
  }

  public ProgressBar(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public ProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }

  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
  public ProgressBar(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
    super(context, attrs, defStyleAttr, defStyleRes);
  }

}

调试代码:

public class ProgressBar extends android.widget.ProgressBar {

  public ProgressBar(Context context) {
    super(context);
  }

  public ProgressBar(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public ProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }

  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
  public ProgressBar(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
    super(context, attrs, defStyleAttr, defStyleRes);
  }

  @SuppressWarnings("deprecation")
  @Override
  public void setIndeterminateDrawable(Drawable d) {
    if (isRunningTest()) {
        d = getResources().getDrawable(R.drawable.ic_replay);
    }
    super.setIndeterminateDrawable(d);
  }

  private boolean isRunningTest() {
    try {
        Class.forName("base.EspressoTestBase");
        return true;
    } catch (ClassNotFoundException e) {
        /* no-op */
    }
    return false;
  }

}

正如您所看到的,我还添加了一个检查我的应用程序是否正在运行Espresso测试,而我正在搜索的类是我的Espresso测试的基础.

不好的是,您必须更新所有代码才能使用自定义ProgressBar.但好处是您的发布代码对此解决方案没有重大影响.

Answer 3

我有类似的问题.早在第一次调用getActivity()时测试就失败了.因此,在活动开始后,必须更换ProgressBar的不确定drawable.

 Application application = (Application)this.getInstrumentation().getTargetContext().getApplicationContext();
    application.registerActivityLifecycleCallbacks(new Application.ActivityLifecycleCallbacks() {
        @Override
        public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
            //not here, it's too early
        }

        @Override
        public void onActivityStarted(Activity activity) {
            //find the progressBar in your activity
            ProgressBar progressBar = ((ProgressBar) activity.findViewById(R.id.progress_bar));
            if(progressBar != null) {
                //replace progress bar drawable as not animated
                progressBar.setIndeterminateDrawable(new ColorDrawable(0xffff0000));
            }
        }

        @Override
        public void onActivityResumed(Activity activity) {

        }

        @Override
        public void onActivityPaused(Activity activity) {

        }

        @Override
        public void onActivityStopped(Activity activity) {

        }

        @Override
        public void onActivitySaveInstanceState(Activity activity, Bundle outState) {

        }

        @Override
        public void onActivityDestroyed(Activity activity) {

        }
    });

    //Now you can start the activity
    getActivity();