[Espresso]AdapterViewの子要素の確認方法まとめ

毎回忘れてググる羽目になるので自分用メモ。

ListView,GridView

Espresso.onData(anything())
                .inAdapterView(withId(R.id.gridView))
                .atPosition(index)
                .onChildView(withId(R.id.img_child))
                .check(matches(isDisplayed()))
                .check(matches(withEffectiveVisibility(ViewMatchers.Visibility.VISIBLE)));
                .perform(click())

※ListView/GridViewがTOP要素なら、atPositionに指定したビューが見えるまで自動でスクロールしてくれるが、ScrollView内に含めるような実装方法にしていると、自分でスクロールさせておく必要がある。

RecyclerView

check

onView(withId(R.id.list))
    .perform(RecyclerViewActions.scrollToPosition(index))
    .check(matches(atPositionOnView(index,
                            withText("タイトル"), R.id.text_title_name)))
    .check(matches(atPositionOnView(index ,
                            withText("¥300"), R.id.text_price)))
    .check(matches(atPositionOnView(index,
                            withEffectiveVisibility(ViewMatchers.Visibility.INVISIBLE),
                            R.id.text_purchased)));

public static Matcher<View> atPositionOnView(final int position, final Matcher<View> itemMatcher,
                                           @NonNull final int targetViewId) {

  return new BoundedMatcher<View, RecyclerView>(RecyclerView.class) {
      @Override
      public void describeTo(Description description) {
          description.appendText("has view id " + itemMatcher + " at position " + position);
      }

      @Override
      public boolean matchesSafely(final RecyclerView recyclerView) {
          RecyclerView.ViewHolder viewHolder = recyclerView.findViewHolderForAdapterPosition(position);
          View targetView = viewHolder.itemView.findViewById(targetViewId);
          return itemMatcher.matches(targetView);
      }
  };
}

perform

onView(withId(R.id.list)).perform(
                   RecyclerViewActions.actionOnItemAtPosition(index + 1, click()));