如何在Espresso中的RecyclerView内断言？ [英] How to assert inside a RecyclerView in Espresso?

问题描述

我正在使用espresso-contrib在 RecyclerView 上执行操作，并且它可以正常工作，例如：

I am using espresso-contrib to perform actions on a RecyclerView, and it works as it should, ex:

onView(withId(R.id.recycler_view))
.perform(RecyclerViewActions.actionOnItemAtPosition(0, click())); //click on first item

我需要对它执行断言。这样的事情：

and I need to perform assertions on it. Something like this:

onView(withId(R.id.recycler_view))
    .perform(RecyclerViewActions.actionOnItemAtPosition(0, check(matches(withText("Test Text"))));

但是，因为< a href =http://android-test-kit.googlecode.com/git-history/e81b6694887f5c73617759d2728a92beba9b8f12/docs/javadocs/espresso/espresso-contrib-2.0-javadoc/reference/android/support/test/espresso/contrib/ RecyclerViewActions.html＃actionOnItemAtPosition（int，％20android.support.test.espresso.ViewAction）rel =noreferrer> RecyclerViewActions 当然是期待一个动作，它说错误的第二个参数类型。没有< espresso-contrib上的code> RecyclerViewAssertions 。

but, because RecyclerViewActions is, of course, expecting an action, it says wrong 2nd argument type. There's no RecyclerViewAssertions on espresso-contrib.

有没有办法在回收站视图上执行断言？

Is there any way to perform assertions on a recycler view?

推荐答案

你应该看看Danny Roa的解决方案自定义RecyclerView动作
然后像这样使用它：

You should check out Danny Roa's solution Custom RecyclerView Actions And use it like this:

onView(withRecyclerView(R.id.recycler_view)
    .atPositionOnView(1, R.id.ofElementYouWantToCheck))
    .check(matches(withText("Test text")));

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