如何为android的API编写单元测试用例?
我想为我的代码编写一个单元测试用例,在开发和构建APK之前,还需要通过所有单元测试用例。请建议我。编写测试用例需要遵循一些架构,如MVP或MVVM,还需要使用Junit和Mockito测试框架,您可以找到示例 这里有一个简单的例子,也许它可以帮助你。在这里,我使用网络改造 活动如何为android的API编写单元测试用例?,android,api,android-asynctask,android-volley,retrofit,Android,Api,Android Asynctask,Android Volley,Retrofit,我想为我的代码编写一个单元测试用例,在开发和构建APK之前,还需要通过所有单元测试用例。请建议我。编写测试用例需要遵循一些架构,如MVP或MVVM,还需要使用Junit和Mockito测试框架,您可以找到示例 这里有一个简单的例子,也许它可以帮助你。在这里,我使用网络改造 活动 package com.ram.com.mvp_示例; 导入android.support.v7.app.AppActivity; 导入android.os.Bundle; 导入android.support.v7.wi
package com.ram.com.mvp_示例;
导入android.support.v7.app.AppActivity;
导入android.os.Bundle;
导入android.support.v7.widget.LinearLayoutManager;
导入android.support.v7.widget.RecyclerView;
导入android.view.view;
导入android.widget.ProgressBar;
导入android.widget.Toast;
导入com.ram.com.mvp_sample.modal.RemoteRepository;
导入com.ram.com.mvp_sample.modal.Repository;
导入com.ram.com.mvp_sample.modal.pojo.Example;
导入java.util.List;
/**
*提供通过电子邮件/密码登录的登录屏幕。
*/
公共类ImageListActivity扩展AppCompatActivity实现契约。查看{
私人合同。主持人;
私人ProgressBar mProgressView;
私有回收视图图像列表;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u image\u列表);
presenter=新的presenter(这是Repository.getInstance(RemoteRepository.getInstance());
mProgressView=findviewbyd(R.id.login\u progress);
imageList=findViewById(R.id.image\u列表);
getImageList(新的AppNetworkStatus(此));
}
@凌驾
公共void showProgressBar(布尔显示){
mProgressView.setVisibility(显示?视图。可见:视图。消失);
}
@凌驾
公共作废showImageList(列表示例){
ImageListAdapter=新ImageListAdapter(示例);
LinearLayoutManager layoutManager=新的LinearLayoutManager(此);
setLayoutManager(layoutManager);
设置适配器(适配器);
}
@凌驾
公共错误(对象错误代码){
Toast.makeText(this,errorCode.toString(),Toast.LENGTH_LONG).show();
}
@凌驾
public void setPresenter(Contract.Presenter-Presenter){
this.presenter=演示者;
}
}
Repository类:它将与RemoteRepository交互
package com.ram.com.mvp_示例;
导入com.ram.com.mvp_sample.modal.DataSource;
导入com.ram.com.mvp_sample.modal.Repository;
导入com.ram.com.mvp_sample.modal.pojo.Example;
导入java.util.List;
公共类Presenter实现契约。Presenter{
私人合同。视图;
私有存储库;
公共演示者(Contract.View视图、存储库storesRepository){
this.view=视图;
this.repository=storesRepository;
this.view.setPresenter(this);
}
@凌驾
公共无效getImageList(网络状态NetworkStatus){
view.showProgressBar(true);
repository.getList(networkStatus,new DataSource.OnResponseCallBackListener(){
@凌驾
成功时公开作废(列表数据){
view.showProgressBar(假);
视图。showImageList(数据);
}
@凌驾
public void onError(对象错误){
view.showProgressBar(假);
视图。错误(错误);
}
});
}
@凌驾
公开作废开始(){
}
}
RemoteRepository类:它将直接在此处进行修改
package com.ram.com.mvp_sample.modal;
导入com.ram.com.mvp_sample.APIClient;
导入com.ram.com.mvp_sample.api接口;
导入com.ram.com.mvp_sample.NetworkStatus;
导入com.ram.com.mvp_sample.modal.pojo.Example;
导入java.util.List;
2.电话;;
2.回拨;
2.回应;;
公共类RemoteRepository实现了数据源{
私有静态RemoteRepository实例=null;
专用远程存储库(){
}
公共静态RemoteRepository getInstance(){
if(实例==null){
实例=新的RemoteRepository();
}
返回实例;
}
@凌驾
public void getList(NetworkStatus networkStats,final OnResponseCallBackListener OnResponseCallBackListener){
ApiInterface ApiInterface=APIClient.getClient().create(ApiInterface.class);
调用call1=apinterface.getImageList();
call1.enqueue(新回调(){
@凌驾
公共void onResponse(调用、响应){
onResponseCallBackListener.onSuccess(response.body());
}
@凌驾
失败时公共无效(调用调用,可丢弃的t){
onResponseCallBackListener.onError(t.toString());
}
});
}
}
Presenter类:Presenter负责与存储库和视图通信
package com.ram.com.mvp_示例;
导入com.ram.com.mvp_sample.modal.DataSource;
导入com.ram.com.mvp_sample.modal.Repository;
导入com.ram.com.mvp_sample.modal.pojo.Example;
导入java.util.List;
公共类Presenter实现契约。Presenter{
私人合同。视图;
私有存储库;
公共演示者(Contract.View视图、存储库storesRepository){
this.view=视图;
this.repository=storesRepository;
this.view.setPresenter(this);
}
@凌驾
公共无效getImageList(网络状态NetworkStatus){
view.showProgressBar(true);
repository.getList(networkStatus,new DataSource.OnResponseCallBackListener(){
@凌驾
成功时公开作废(列表数据){
view.showProgressBar(假);
视图。showImageList(数据);
}
@凌驾
public void onError(对象错误){
view.showProgressBar(假);
视图。错误(错误);
}
});
}
@凌驾
公开作废开始(){
}
}
演示者类的测试用例
package com.ram.com.mvp_示例;
导入com.ram.com.mvp_sample.modal.Da
package com.ram.com.mvp_sample;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;
import com.ram.com.mvp_sample.modal.RemoteRepository;
import com.ram.com.mvp_sample.modal.Repository;
import com.ram.com.mvp_sample.modal.pojo.Example;
import java.util.List;
/**
* A login screen that offers login via email/password.
*/
public class ImageListActivity extends AppCompatActivity implements Contract.View {
private Contract.Presenter presenter;
private ProgressBar mProgressView;
private RecyclerView imageList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_list);
presenter = new Presenter(this, Repository.getInstance(RemoteRepository.getInstance()));
mProgressView = findViewById(R.id.login_progress);
imageList = findViewById(R.id.image_list);
presenter.getImageList(new AppNetworkStatus(this));
}
@Override
public void showProgressBar(boolean show) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
@Override
public void showImageList(List<Example> example) {
ImageListAdapter adapter = new ImageListAdapter(example);
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
imageList.setLayoutManager(layoutManager);
imageList.setAdapter(adapter);
}
@Override
public void showError(Object errorCode) {
Toast.makeText(this, errorCode.toString(), Toast.LENGTH_LONG).show();
}
@Override
public void setPresenter(Contract.Presenter presenter) {
this.presenter = presenter;
}
}
package com.ram.com.mvp_sample;
import com.ram.com.mvp_sample.modal.DataSource;
import com.ram.com.mvp_sample.modal.Repository;
import com.ram.com.mvp_sample.modal.pojo.Example;
import java.util.List;
public class Presenter implements Contract.Presenter {
private Contract.View view;
private Repository repository;
public Presenter(Contract.View view, Repository storesRepository) {
this.view = view;
this.repository = storesRepository;
this.view.setPresenter(this);
}
@Override
public void getImageList(NetworkStatus networkStatus) {
view.showProgressBar(true);
repository.getList(networkStatus, new DataSource.OnResponseCallBackListener() {
@Override
public void onSuccess(List<Example> data) {
view.showProgressBar(false);
view.showImageList(data);
}
@Override
public void onError(Object error) {
view.showProgressBar(false);
view.showError(error);
}
});
}
@Override
public void start() {
}
}
package com.ram.com.mvp_sample.modal;
import com.ram.com.mvp_sample.APIClient;
import com.ram.com.mvp_sample.ApiInterface;
import com.ram.com.mvp_sample.NetworkStatus;
import com.ram.com.mvp_sample.modal.pojo.Example;
import java.util.List;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class RemoteRepository implements DataSource {
private static RemoteRepository INSTANCE = null;
private RemoteRepository() {
}
public static RemoteRepository getInstance() {
if (INSTANCE == null) {
INSTANCE = new RemoteRepository();
}
return INSTANCE;
}
@Override
public void getList(NetworkStatus networkStats, final OnResponseCallBackListener onResponseCallBackListener) {
ApiInterface apiInterface = APIClient.getClient().create(ApiInterface.class);
Call<List<Example>> call1 = apiInterface.getImageList();
call1.enqueue(new Callback<List<Example>>() {
@Override
public void onResponse(Call<List<Example>> call, Response<List<Example>> response) {
onResponseCallBackListener.onSuccess(response.body());
}
@Override
public void onFailure(Call<List<Example>> call, Throwable t) {
onResponseCallBackListener.onError(t.toString());
}
});
}
}
package com.ram.com.mvp_sample;
import com.ram.com.mvp_sample.modal.DataSource;
import com.ram.com.mvp_sample.modal.Repository;
import com.ram.com.mvp_sample.modal.pojo.Example;
import java.util.List;
public class Presenter implements Contract.Presenter {
private Contract.View view;
private Repository repository;
public Presenter(Contract.View view, Repository storesRepository) {
this.view = view;
this.repository = storesRepository;
this.view.setPresenter(this);
}
@Override
public void getImageList(NetworkStatus networkStatus) {
view.showProgressBar(true);
repository.getList(networkStatus, new DataSource.OnResponseCallBackListener() {
@Override
public void onSuccess(List<Example> data) {
view.showProgressBar(false);
view.showImageList(data);
}
@Override
public void onError(Object error) {
view.showProgressBar(false);
view.showError(error);
}
});
}
@Override
public void start() {
}
}
package com.ram.com.mvp_sample;
import com.ram.com.mvp_sample.modal.DataSource;
import com.ram.com.mvp_sample.modal.Repository;
import com.ram.com.mvp_sample.modal.pojo.Example;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.ArgumentMatchers;
import org.mockito.Captor;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class PresenterTest {
private Presenter presenter;
@Mock
private Repository repository;
@Mock
private Contract.View view;
@Mock
private NetworkStatus networkStatus;
@Captor
private ArgumentCaptor<NetworkStatus> networkStatusArgumentCaptor;
@Captor
private ArgumentCaptor<DataSource.OnResponseCallBackListener> callBackListenerArgumentCaptor;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
presenter = new Presenter(view, repository);
}
// Positive test
@Test
public void getImageList() {
when(networkStatus.isOnline()).thenReturn(true);
presenter.getImageList(networkStatus);
verify(repository).getList(networkStatusArgumentCaptor.capture(), callBackListenerArgumentCaptor.capture());
callBackListenerArgumentCaptor.getValue().onSuccess(ArgumentMatchers.<Example>anyList());
InOrder inOrder = Mockito.inOrder(view);
inOrder.verify(view).showProgressBar(true);
inOrder.verify(view).showProgressBar(false);
inOrder.verify(view).showImageList(ArgumentMatchers.<Example>anyList());
}
// Negative test
@Test
public void getImageListNetworkError() {
when(networkStatus.isOnline()).thenReturn(false);
presenter.getImageList(networkStatus);
verify(repository).getList(networkStatusArgumentCaptor.capture(), callBackListenerArgumentCaptor.capture());
callBackListenerArgumentCaptor.getValue().onError(anyString());
InOrder inOrder = Mockito.inOrder(view);
inOrder.verify(view).showProgressBar(true);
inOrder.verify(view).showProgressBar(false);
inOrder.verify(view).showError(anyString());
}
}
package com.ram.com.mvp_sample;
import com.ram.com.mvp_sample.modal.DataSource;
import com.ram.com.mvp_sample.modal.RemoteRepository;
import com.ram.com.mvp_sample.modal.Repository;
import com.ram.com.mvp_sample.modal.pojo.Example;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.ArgumentMatchers;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class RepositoryTest {
private Repository repository;
@Mock
private RemoteRepository remoteRepository;
@Mock
private NetworkStatus networkStatus;
@Captor
private ArgumentCaptor<NetworkStatus> networkStatusArgumentCaptor;
@Mock
private DataSource.OnResponseCallBackListener callBackListener;
@Captor
private ArgumentCaptor<DataSource.OnResponseCallBackListener> callBackListenerArgumentCaptor;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
repository = Repository.getInstance(remoteRepository);
}
@Test
public void getImageList() {
when(networkStatus.isOnline()).thenReturn(true);
repository.getList(networkStatus, callBackListener);
verify(remoteRepository).getList(networkStatusArgumentCaptor.capture(), callBackListenerArgumentCaptor.capture());
callBackListenerArgumentCaptor.getValue().onSuccess(ArgumentMatchers.<Example>anyList());
Mockito.verify(callBackListener).onSuccess(ArgumentMatchers.<Example>anyList());
callBackListenerArgumentCaptor.getValue().onError("Some Error");
Mockito.verify(callBackListener).onError("Some Error");
}
}
// required if you want to use Mockito for unit tests
testCompile 'org.mockito:mockito-core:2.7.22'
// required if you want to use Mockito for Android tests
androidTestCompile 'org.mockito:mockito-android:2.7.22'