我正在编写一个使用Mockito来测试JSONParseException的JUnit测试用例，但我正在收到ClassCastException。好像有人在排队
when(response.readEntity(Mockito.any(Class.class))).thenReturn(baseModel);
以下是我的模拟 class 。
public class MockJerseyClient {
private ClientConfiguration clientConfig;
private Client client;
private WebTarget webTarget;
private Invocation.Builder invocationBuilder;
private Response response;
private StatusType statusType;
private String myString = null;
public enum CATEGORY {
XML, JSON
}
private JAXBContext getContext(BaseModel baseModel) throws JAXBException {
if (baseModel instanceof RetrieveBillingResponse) {
return JAXBContext.newInstance(RetrieveBillingResponse.class);
} else if (baseModel instanceof ThirdPartyVinResponse) {
return JAXBContext.newInstance(ThirdPartyVinResponse.class);
}
return null;
}
public MockJerseyClient(String URI, int status, String contentType, BaseModel baseModel, CATEGORY responseType) throws EISClientException, Exception {
if (responseType == CATEGORY.XML) {
JAXBContext context = getContext(baseModel);
Marshaller marshallerObj = context.createMarshaller();
marshallerObj.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
marshallerObj.marshal(baseModel, byteOut);
// myString = byteOut.toString();
// System.out.println(myString);
} else if (responseType == CATEGORY.JSON) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ObjectMapper mapper = new ObjectMapper();
mapper.writeValue(stream, baseModel);
}
clientConfig = mock(ClientConfiguration.class);
client = mock(Client.class);
clientConfig.createClient();
webTarget = mock(WebTarget.class);
clientConfig.createWebResource(URI);
response = mock(Response.class);
invocationBuilder = mock(Invocation.Builder.class);
statusType = mock(StatusType.class);
when(client.target(URI)).thenReturn(webTarget);
when(clientConfig.createWebResource(anyString())).thenReturn(webTarget);
when(webTarget.path(anyString())).thenReturn(webTarget);
when(webTarget.queryParam(anyString(), anyString())).thenReturn(webTarget);
when(webTarget.register(RetrieveBillingResponseXMLReader.class)).thenReturn(webTarget);
when(webTarget.request()).thenReturn(invocationBuilder);
when(invocationBuilder.header(anyString(), Mockito.any())).thenReturn(invocationBuilder);
when(invocationBuilder.accept(anyString())).thenReturn(invocationBuilder);
when(invocationBuilder.get(Response.class)).thenReturn(response);
when(response.readEntity(Mockito.any(Class.class))).thenReturn(baseModel);
when(response.getStatusInfo()).thenReturn(statusType);
when(statusType.getStatusCode()).thenReturn(status);
}
public ClientConfiguration getClientConfig() {
return clientConfig;
}
}
我的JUnit测试。
@Test
public void testRetrieveBillingJSONParseException() throws EISClientException, Exception {
RetrieveEnhancedBillingSummaryResponse entity = new RetrieveEnhancedBillingSummaryResponse();
MockJerseyClient mockClient = new MockJerseyClient("mig", 200, "application/json", entity, CATEGORY.JSON);
EISBillingClient client = new EISBillingClient(mockClient.getClientConfig(), "url");
RetrieveBillingServiceRequest request = client.getRetrieveBillingRequest();
request.setAccepts(ContentType.JSON);
request.setParameters(client.getRetrieveBillingRequestParameters("HO123456789", "11302015"));
boolean caughtException = false;
try {
@SuppressWarnings("unused")
RetrieveBillingServiceResponse response = client.retrieveBilling(request);
} catch (Exception ex) {
if (ex instanceof EISClientException) {
caughtException = true;
assertEquals("Exception in processing the Retrieve Billing Call", ex.getMessage());
assertTrue(ex.getCause() instanceof JsonParseException);
} else {
ex.printStackTrace();
fail("Target exception other than JsonParseException.");
}
}
assertTrue(caughtException);
}
谢谢，
最佳答案
看起来您正在返回一个RetrieveEnhancedBillingSummaryResponse baseModel，您的被测系统在其中期望RetrieveBillingResponse。 Mockito不会发现您输入了错误的类型，但是稍后仍然会失败。
请注意，当您说:
when(response.readEntity(Mockito.any(Class.class))).thenReturn(baseModel);
您是说无论
baseModel传递了什么类，都将返回readEntity。相反，您可能需要在那里进行类型检查，尤其是如果您对多个调用使用相同的模拟response时:when(response.readEntity(baseModel.getClass()).thenReturn(baseModel);
仅在对
baseModel的调用尝试读取readEntity的类的对象时，才返回baseModel。