JAVA Contract testing (CDC) using Pact

Question

I'm trying to write contract test to this service:

 @RestController
 @RequestMapping(path = "/api/form")
 public class FormController {
 private RestOperations restOperations;
 @Autowired
 public FormController(RestOperations restOperations) {
 this.restOperations = restOperations;
 }
 @PostMapping(path = "/submit", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
 public ResponseEntity<SubmitFormResponse> submitForm(@RequestBody @Valid SubmitFormCommand submitFormCommand) {
 return restOperations.postForEntity("http://127.0.0.1:9000/api/form/submit", submitFormCommand, SubmitFormResponse.class);
 }
}

SubmitFormCommand contains only String "message" and SubmitFormResponse contains Boolean "success"

My RestClient for this service:

@Component
public class FormControllerClient {
 @Autowired
 private RestOperations restOperations;
 public ResponseEntity<SubmitFormResponse> submitForm(SubmitFormCommand submitFormCommand) {
 HttpEntity<SubmitFormCommand> request = new HttpEntity<>(submitFormCommand);
 return restOperations.exchange("http://localhost:1234/api/form/submit", HttpMethod.POST, request, SubmitFormResponse.class);
 }

And Contract test class of consumer looks like this:

@RunWith(SpringRunner.class)
@SpringBootTest
public class ContactFormClientTest {
 @Rule
 public PactProviderRuleMk2 pactProviderRuleMk2 = new PactProviderRuleMk2("formservice", "localhost", 1234, this);
 @Autowired
 private FormControllerClient formControllerClient;
 @Pact(state = "provider accets submit contact form", provider = "formservice", consumer = "formclient")
 public RequestResponsePact submitFormPact(PactDslWithProvider builder) {
 return builder
 .given("provider accetps form submit")
 .uponReceiving("a request to POST form")
 .path("/api/form/submit")
 .method("POST")
 .willRespondWith()
 .status(200)
 .matchHeader("Content-Type", "application/json;charset=UTF-8")
 .body(new PactDslJsonBody()
 .stringType("message", "TestMessage"))
 .toPact();
 }
 @Test
 @PactVerification(fragment = "submitFormPact")
 public void verifySubmitFormPact() {
 SubmitFormCommand submitFormCommand = new SubmitFormCommand("TestMessage");
 ResponseEntity<SubmitFormResponse> response = formControllerClient.submitForm(submitFormCommand);
 assertNotNull(response);
 }
}

Every time I run the test it says "Connection refused" and I don't understand what I did wrong with a setup, my FormController would be a consumer in this case since it calls another service to submit the form.

Plugin in pom.xml for building Pact file looks like this :

 <plugin>
 <!-- mvn pact:publish -->
 <groupId>au.com.dius</groupId>
 <artifactId>pact-jvm-provider-maven_2.11</artifactId>
 <version>3.5.10</version>
 <configuration>
 <pactDirectory>../pacts</pactDirectory>
 <pactBrokerUrl>http://localhost:1234</pactBrokerUrl>
 <projectVersion>${project.version}</projectVersion>
 </configuration>
 </plugin>

Answer 1

The problem is you are placing your request body in the response. Your pact should look like:

@Pact(state = "provider accets submit contact form", provider = "formservice", consumer = "formclient")
 public RequestResponsePact submitFormPact(PactDslWithProvider builder) {
 return builder
 .given("provider accetps form submit")
 .uponReceiving("a request to POST form")
 .path("/api/form/submit")
 .method("POST")
 .body(new PactDslJsonBody()
 .stringType("message", "TestMessage"))
 .willRespondWith()
 .status(200)
 .matchHeader("Content-Type", "application/json;charset=UTF-8")
 .body(new PactDslJsonBody()
 .booleanType("sucess", true))
 .toPact();
 }