使用Android Espresso查找层次结构中的视图

Question

我有一个带有自定义视图的仪表板。

我想测试一旦数据可用，它是否正确显示在各种文本视图中。

我的问题是：如何选择属于层次结构的各个TextView。

例如：如何获取当前月份 > 销售额 > 值 视图？

我只知道如何处理单个层次结构级别，但这对此处没有帮助：

onView(
  allOf(withId(R.id.value), 
  isDescendantOfA(withId(R.id.current_month))))

层次结构如下所示：

+- RelativeLayout
|
|___+ CustomCardView (id = current_month)
|   |
|   |___+ CustomValueView (id = sales)
|   |   |
|   |   |___+ TextView (id = value)
|   |   |
|   |   |___+ TextView (id = unit)
|   |
|   |___+ CustomValueView (id = earnings)
|       |
|       |___+ TextView (id = value)
|       |
|       |___+ TextView (id = unit)
|
|___+ CustomCardView (id = last_month)
|   |
|   |___+ CustomValueView (id = sales)
|   |   |
|   |   |___+ TextView (id = value)
|   |   |
|   |   |___+ TextView (id = unit)
|   |
|   |___+ CustomValueView (id = earnings)
|       |
|       |___+ TextView (id = value)
|       |
|       |___+ TextView (id = unit)
|
|___+ CustomCardView (id = all_time)
    |
    |___+ CustomValueView (id = sales)
    |   |
    |   |___+ TextView (id = value)
    |   |
    |   |___+ TextView (id = unit)
    |
    |___+ CustomValueView (id = earnings)
        |
        |___+ TextView (id = value)
        |
        |___+ TextView (id = unit)

- Vincent Mimoun-Prat

Answer 1

好的。看起来相当简单。

    onView(allOf(withId(R.id.value),
            isDescendantOfA(allOf(withId(R.id.sales),
                    isDescendantOfA(withId(R.id.current_month))))))

那是最好的方法吗？

- Vincent Mimoun-Prat

---

也许你可以帮我解决这个问题 https://stackoverflow.com/questions/67199041/espresso-tap-on-specific-bottomnavigationbar-item - StuartDTO

Answer 2

使用`withParent(Matcher)`层次视图匹配器：

onView(allOf(withId(R.id.value),
     withParent(allOf(withId(R.id.sales),
          withParent(withId(R.id.current_month)))),
  isDisplayed()));

希望这有所帮助。

- Akshay Mahajan

---

也许你可以在这里提供指导 https://stackoverflow.com/questions/67199041/espresso-tap-on-specific-bottomnavigationbar-item - StuartDTO