The basic setup of pact consumer using `au.com.dius.pact.consumer:junit`

everon-consumer-pact.java

public class TariffClientPactTest {
    @Rule
    public PactProviderRule pactProviderRule = new PactProviderRule("billing", "localhost", 8080, this);
  
    @Pact(provider = "billing", consumer = "transactions")
    public RequestResponsePact itProvidesTariffPact(PactDslWithProvider pactDsl) {
       return pactDsl
                .given("tariff-for-transactions")
                .uponReceiving("get tariff")
                .path("/billing/tariffs/04974939-2630-4cb3-b2d0-baac27842172")
                .method("GET")
                .willRespondWith()
                .status(200)
                .body(new PactDslJsonBody()
                        .uuid("subscriptionId", "04974939-2630-4cb3-b2d0-baac27842172")
                        .numberType("energyPrice", 5.5)
                        .numberType("connectionPrice", 6.6)
                        .numberType("timePrice", 7.7)
                        .close()
                )
                .toPact();
    }
    
    @Test
    @PactVerification("billing")
    public void itFetchesTariff() {
        Tariff actual = new TariffClient().fetchTariff("04974939-2630-4cb3-b2d0-baac27842172");

        assertThat(actual.getSubscriptionId()).isEqualTo(fromString("04974939-2630-4cb3-b2d0-baac27842172))
    }
}