Question

I have a sliding tabs app, with recyclerview in every tab. I am testing the app using Android Espresso. I want to click on one of the recyclerview item. when i do this:

 onView(withId(R.id.recyclerView))
            .perform(RecyclerViewActions.actionOnItemAtPosition(2, click()));

I get this exception:

android.support.test.espresso.AmbiguousViewMatcherException: 'with id: com.uriel.frankel:id/recyclerView' matches multiple views in the hierarchy.

any Ideas?

Answer 1

嗯，我猜您在标签中为每个RecyclerView使用相同的xml文件。因此，您的所有RecyclerView's都具有相同的ID。因此，您无法使用您的ID来引用RecyclerView's。

因此，要么为每个RecyclerView提供自己的ID，要么尝试使用ViewMatcher之类的任何withText("any specific text in your recyclers")进行搜索。 Here您可以找到适合您情况的方法。

Answer 2

我建议创建ViewHolder匹配器以匹配RecyclerView内的特定项目。然后，您就可以像PositionableRecyclerViewAction一样使用scrollToHolder(...)，例如：

public static Matcher<RecyclerView.ViewHolder> withMessageSubjectInViewHolder(String itemSubject) {
        Checks.checkNotNull(itemSubject);
        return new BoundedMatcher<RecyclerView.ViewHolder,
                MyRecyclerViewItemAdapter.MyViewHolder>(MyRecyclerViewItemAdapter.MyViewHolder.class) {
            @Override
            public boolean matchesSafely(MyRecyclerViewItemAdapter.MyViewHolder holder) {
                boolean isMatches = false;

                if (!(holder.subject == null)) {
                    isMatches = ((itemSubject.equals(holder.subject.getText().toString()))
                            && (holder.subject.getVisibility() == View.VISIBLE));
                }
                return isMatches;
            }

            @Override
            public void describeTo(Description description) {
                description.appendText("with message subject: " + itemSubject);
            }
        };
    }

这就是我使用它的方式：

onView(withId(R.id.my_recycler_view_id)).perform(scrollToHolder(withMessageSubjectInViewHolder(unique_message_subject)));
onView(withText(unique_message_subject)).check(matches(isDisplayed())).perform(click());

Android Espresso: Sliding Tabs with RecyclerViews in every tab

2 个答案: