Question

我有一个完整的工作项目，但我想为主要活动编写一个espresso测试，主要测试计数recyclelerview项目，代码消耗JSON值并在回收器视图的帮助下将列表传递给适配器以显示。我写了一个测试，但我继续将null对象作为响应，下面的代码失败是代码

MainActivity.class

describe('my sweet test', () => {
 it('clicks it', () => {
    const app = shallow(<App />)
    const instance = app.instance()
    const spy = jest.spyOn(instance, 'myClickFunc')

    instance.forceUpdate();    

    const p = app.find('.App-intro')
    p.simulate('click')
    expect(spy).toHaveBeenCalled()
 })
})

RecipeAdapter.class

public class MainActivity extends AppCompatActivity implements  RecipeTestDownloader.DelayerCallback  {

private RecyclerView recyclerView;
ProgressDialog pd;
List<Recipe> recipes;
private static Context mContext;

@Nullable
private SimpleIdlingResource mIdlingResource;


@VisibleForTesting
@NonNull
public IdlingResource getIdlingResource() {
    if (mIdlingResource == null) {
        mIdlingResource = new SimpleIdlingResource();
    }
    return mIdlingResource;
}


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_recipe_list);

    initViews();
    mContext = this;
    RecipeSyncUtils.initialize(this);
    getIdlingResource();
}

public Activity getActivity(){
    Context context = this;
    while (context instanceof ContextWrapper){
        if (context instanceof Activity){
            return (Activity) context;
        }
        context = ((ContextWrapper) context).getBaseContext();
    }
    return null;

}

private void initViews(){

    boolean isPhone = getResources().getBoolean(R.bool.is_phone);

    if (isPhone) {

        recyclerView = (RecyclerView)findViewById(R.id.recycler_view);

        recyclerView.setHasFixedSize(true);
        LinearLayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
        recyclerView.setLayoutManager(layoutManager);
    } else {

        recyclerView = (RecyclerView)findViewById(R.id.recycler_view);

        recyclerView.setHasFixedSize(true);
        if (getActivity().getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT){
            recyclerView.setLayoutManager(new GridLayoutManager(this, 2));
        } else {
            recyclerView.setLayoutManager(new GridLayoutManager(this, 3));
        }

    }

    RecipeSyncUtils.initialize(this);
    loadJSON();

}

private void loadJSON(){

    Service serviceAPI = Client.getClient();
    Call<JsonArray> loadRecipeCall = serviceAPI.readRecipeArray();

    loadRecipeCall.enqueue(new Callback<JsonArray>() {
        @Override
        public void onResponse(Call<JsonArray> call, Response<JsonArray> response) {

            try {

                String recipeString = response.body().toString();

                Type listType = new TypeToken<List<Recipe>>() {}.getType();
                recipes = JsonUtils.getRecipeListFromJson(recipeString, listType);

                recyclerView.setAdapter(new RecipeAdapter(getApplicationContext(), recipes));
                recyclerView.smoothScrollToPosition(0);



            } catch (Exception e) {
                Log.d("onResponse", "There is an error");
                e.printStackTrace();
            }

        }

        @Override
        public void onFailure(Call<JsonArray> call, Throwable t) {

            Log.d("onFailure", t.toString());

        }


    });
}

@Override
protected void onStart() {
    super.onStart();
    RecipeTestDownloader.downloadRecipe(this, MainActivity.this, mIdlingResource);
}




@Override
public void onDone(ArrayList<Recipe> recipes) {

}
}

我需要有关如何在此MainActivty上编写espresso测试的帮助，即getItemCount测试，文本匹配器或任何测试实现

如何为Recyclerview编写Expresso测试

0 个答案: