how to mock final method of super class - mockito

Question

I would like mock DefaultHttpClient.java and execute method in AbstractHttpClient.java, DefaultHttpClient extends AbstractHttpClient java class, and execute method is final method, so i need to powermock to mock final method.
#RunWith(PowerMockRunner.class)
#PrepareForTest(DefaultHttpClient.class)
//#PrepareForTest(AbstractHttpClient.class)
public class RestClientTest {
DefaultHttpClient client;
RestClient restClient = new RestClient();
#Test
public void getAll() throws Exception{
client = PowerMockito.spy(new DefaultHttpClient());
//PowerMockito.mock(DefaultHttpClient.class);
//Mockito.mock(DefaultHttpClient.class);
HttpResponse response = PowerMockito.mock(HttpResponse.class);
MarketplaceTO sampleData = new MarketplaceTO();
sampleData.setName("name");
//String endpoint = "";
//ProtocolVersion protoCol = new ProtocolVersion("HTTP", 2, 1);
//StatusLine status = new BasicStatusLine(protoCol, HttpStatus.SC_OK, null);
//HttpResponse response = new BasicHttpResponse(status);
BasicHttpEntity entity = new BasicHttpEntity();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(sampleData);
oos.flush();
oos.close();
InputStream is = new ByteArrayInputStream(baos.toByteArray());
entity.setContent(is);
entity.setContentLength(is.available());
response.setEntity(entity);
//PowerMockito.doNothing().when((AbstractHttpClient)client).execute(Mockito.any(HttpUriRequest.class),Mockito.any(HttpContext.class));
PowerMockito.doReturn(response).when(client).execute(Mockito.any(HttpUriRequest.class));
//HttpGet getRequest = new HttpGet(endpoint);
//PowerMockito.when(client.execute(Mockito.any(HttpGet.class))).thenReturn(response);
//Mockito.stub(client.execute(getRequest)).toReturn(response);
//System.out.println("code "+response.getStatusLine().getStatusCode());
EMResponse<MarketplaceTO> responseData = restClient.getAll("", MarketplaceTO.class);
//System.out.println("name is "+responseData.getModelObject().getName());
Assert.assertEquals("name", responseData.getModelObject().getName());
}
}
and RestClient.java has
public <T> EMResponse<T> getAll(String entity, Class<T> entityClass) {
StringBuffer bufferedReader = null;
String output = "";
EMResponse<T> emResponse = null;
EMError emError = null;
ObjectMapper objectMapper = new ObjectMapper();
DefaultHttpClient httpClient = new DefaultHttpClient();
try {
bufferedReader = new StringBuffer();
String endpoint = /*EntityManagerProperties
.get(EntityManagerProperties.ENTITY_MANAGER_SERVICE_URL)
+ "/" + entity*/"http://google.com/abcd";
HttpGet getRequest = new HttpGet(endpoint);
HttpResponse response = httpClient.execute(getRequest);
System.out.println("code "+response.getStatusLine().getStatusCode());
return getEntityObjects(response, entityClass, true);
} catch (ClientProtocolException e) {
logger.error("Exception", e);
} catch (IOException e) {
logger.error("Exception", e);
} finally {
//httpClient.getConnectionManager().shutdown();
}
return emResponse;
}
if i call after mocking execute method, then also it is calling actual method.
Please help me. sorry for my english.

Answer 1

Reason why its calling original execute method is because you have used a constructor
DefaultHttpClient httpClient = new DefaultHttpClient();
in RestClient.java class.
so you should must mock the constructor and return your mocked object
Add this line
whenNew(DefaultHttpClient.class).withNoArguments().thenReturn(client);
before using:
PowerMockito.doReturn(response).when(client)
.execute(Mockito.any(HttpUriRequest.class));
and
Change #PrepareForTest(DefaultHttpClient.class) to #PrepareForTest({DefaultHttpClient.class, RestClient.class})
This will solve your problem.