本文介紹了用Spock模擬的彈簧架模板的處理方法，對(duì)大家解決問(wèn)題具有一定的參考價(jià)值，需要的朋友們下面隨著小編來(lái)一起學(xué)習(xí)吧！
問(wèn)題描述
誰(shuí)能給我舉個(gè)例子，如何使用Spock測(cè)試RestTemplate。
我的類如下所示：
@Service
public class SomeService {
@Autowired
private EndpointUrlProvider endpointUrlProvider;
private RestTemplate restTemplate = new RestTemplate();
public SomeResponse doSomePostRequest(HttpEntity<?> httpEntity) throws Exception {
ResponseEntity<SomeResponse> response;
try{
response = restTemplate.postForEntity(endpointUrlProvider.getSomeUrl(),httpEntity,SomeResponse.class);
} catch (Exception e){
throw new Exception("Exception occured during post for:" + httpEntity.getBody().getClass().getSimpleName() + " Cause: " + e.getMessage());
}
if(response.getStatusCode() == HttpStatus.OK){
return response.getBody();
}
throw new Exception("Error during " + response.getBody().getClass().getSimpleName() + "Http status is diffrent than 200: " + response.getBody().toString());
}
}
測(cè)試：
class SomeTest extends Specification {
RestTemplate restTemplate = Mock {
postForEntity(_, _, SomeResponse.class) >> new ResponseEntity(new SomeResponse(), HttpStatus.OK)
}
@Autowired
SomeService someService
def "someTest"() {
when:
SomeResponse someResponse = someService.doSomePostRequest(new HttpEntity<>(new SomeBody(), new HttpHeaders()))
then:
someResponse == new SomeResponse()
}
}
主要問(wèn)題是RESTTemplate的模仿行為，我正在尋找解決方案，如何以正確的方式做到這一點(diǎn)。我不穿彈簧靴。
推薦答案
情況如下：
您在服務(wù)類中創(chuàng)建了新的RestTemplate。
private RestTemplate restTemplate = new RestTemplate();
然后在測(cè)試中創(chuàng)建模擬并調(diào)用服務(wù)方法：
RestTemplate restTemplate = Mock {
postForEntity(_, _, SomeResponse.class) >> new ResponseEntity(new SomeResponse(), HttpStatus.OK)
}
....
someService.doSomePostRequest
但是您的服務(wù)內(nèi)部仍然有常用的REST模板。您應(yīng)該注入模擬對(duì)象。我建議您通過(guò)構(gòu)造函數(shù)來(lái)完成這項(xiàng)工作。因此將您的代碼更改為：
@Service
public class SomeService {
private EndpointUrlProvider endpointUrlProvider;
private RestTemplate restTemplate;
@Autowired
public SomeService(EndpointUrlProvider endpointUrlProvider, RestTemplate restTemplate){
this.endpointUrlProvider = endpointUrlProvider;
this.restTemplate = restTemplate;
}
您的測(cè)試將是：
class SomeTest extends Specification {
RestTemplate restTemplate = Mock {
postForEntity(_, _, SomeResponse.class) >> new ResponseEntity(new SomeResponse(), HttpStatus.OK)
}
SomeService someService = new SomeService ( null, restTemplate);
def "someTest"() {
when:
SomeResponse someResponse = someService.doSomePostRequest(new HttpEntity<>(new SomeBody(), new HttpHeaders()))
then:
someResponse == new SomeResponse()
}
}
現(xiàn)在您的服務(wù)對(duì)象將在注入的模擬上調(diào)用方法，而不是通常的RestTemplate
附注
構(gòu)造函數(shù)注入被認(rèn)為是春季的一種很好的做法。
最好是創(chuàng)建RestTemplate Bean并將其注入到任何地方，而不是在所有服務(wù)中創(chuàng)建新對(duì)象。
這篇關(guān)于用Spock模擬的彈簧架模板的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，
