findTestItems

final LithoView lithoView = ComponentTestHelper.mountComponent(
    mContext,
    new InlineLayoutSpec() {
      protected ComponentLayout onCreateLayout(ComponentContext c) {
        return Column.create(c)
          .child(
            Column.create(c)
              .child(SimpleMountSpecTester.create(c))
              .child(SimpleMountSpecTester.create(c))
              .testKey("mytestkey"))
          .build();
     }
});
final TestItem testItem = LithoViewTestHelper.findTestItem(lithoView, "mytestkey");