eugenp

@Service
public class FooService implements IFooService{
   
   @Autowired
   IFooDAO dao;
   
   @Override
   public Long create( final Foo entity ){
      return this.dao.create( entity );
   }

eugenp

@Repository
public class FooDAO extends HibernateDaoSupport implements IFooDAO{
   
   public Long create( final Foo entity ){
      Preconditions.checkNotNull( entity );
      
      return (Long) this.getHibernateTemplate().save( entity );
   }
   
}

eugenp

public class FooServiceUnitTest{
   
   FooService instance;
   
   private HibernateTemplate hibernateTemplateMock;
   
   @Before
   public final void before(){
      this.instance = new FooService();
      this.instance.dao = new FooDAO();

eugenp

public static String retrieveJsonFromResponse( final HttpResponse response ) 
      throws IOException{
   Preconditions.checkNotNull( response );
   
   return IOUtils.toString( response.getEntity().getContent() );
}

public static < T >T retrieveResourceFromResponse
      ( final HttpResponse response, final Class< T > clazz ) throws IOException{
   Preconditions.checkNotNull( response );

eugenp

public static < T >HttpEntityEnclosingRequest decorateRequestWithResource
      ( final HttpEntityEnclosingRequest request, final T resource ) 
      throws IOException{
   Preconditions.checkNotNull( request );
   Preconditions.checkNotNull( resource );
   
   final String resourceAsJson = JsonUtil.convertResourceToJson( resource );
   return JsonUtil.decorateRequestWithJson( request, resourceAsJson );
}

eugenp

@Test
public void givenUserDoesNotExists_whenUserInfoIsRetrieved_then404IsReceived() 
      throws ClientProtocolException, IOException{
   // Given
   String name = randomAlphabetic( 8 );
   HttpUriRequest request = new HttpGet( "https://api.github.com/users/" + name );
   
   // When
   HttpResponse httpResponse = httpClient.execute( request );
   

eugenp

@Test
public void givenUserExists_whenUserInformationIsRetrieved_thenRetrievedResourceIsCorrect()
      throws ClientProtocolException, IOException{
   // Given
   HttpUriRequest request = new HttpGet( "https://api.github.com/users/eugenp" );
   
   // When
   HttpResponse response = new DefaultHttpClient().execute( request );
   
   // Then

eugenp

public static < T >String convertResourceToJson( final T resource ) 
      throws IOException{
   Preconditions.checkNotNull( resource );
  
  return new ObjectMapper().writeValueAsString( resource );
}

public static < T >T convertJsonToResource
      ( final String json, final Class< T > clazzOfResource ) throws IOException{
  Preconditions.checkNotNull( json );

eugenp

@Test
public void givenRequestWithNoAcceptHeader_whenRequestIsExecuted_thenDefaultResponseContentTypeIsJson()
      throws ClientProtocolException, IOException{
   // Given
   String jsonMimeType = "application/json";
   HttpUriRequest request = new HttpGet( "https://api.github.com/users/eugenp" );
   
   // When
   HttpResponse response = this.httpClient.execute( request );
   

eugenp

public static void assertResponseCodeIs
      ( final HttpResponse response, final int expectedCode ){
   final int statusCode = httpResponse.getStatusLine().getStatusCode();
   assertEquals( expectedCode, statusCode );
}