Spock unit testing to test the RestTemplate.postForEntity - groovy

Question

I am new to Spock unit testing framework. I am able to write unit test cases using Spock for simple logics. Now, I am writing the same for a Rest API.
I am using Spring's RestTemplate to hit the GET and POST requests. I have seen number of example in google for GET request(like WireMock). But, there is no enough information to give clarification on how to write test cases for POST requests.
Here is my sample code which is written in Junit. I have to convert the same to Spock (I can do).
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.client.RestTemplate;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
#RunWith(SpringJUnit4ClassRunner.class)
#AutoConfigureMockMvc
#ActiveProfiles(value = "integration")
#SpringBootTest(classes = Application.class, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
public class LocalControllerTest {
#Rule
public WireMockRule wireMockRule = new WireMockRule(9999);
#Before
public void setUp() {
mockRemoteService();
}
#Test
public void testLocalServiceWithMockedRemoteService() throws Exception {
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.getForEntity("http://localhost:8080/localService", String.class);
org.junit.Assert.assertEquals("Input : request from client endpoint, Message : mocked remote service response", response.getBody());
}
private void mockRemoteService() {
stubFor(get(urlEqualTo("/remote"))
.willReturn(aResponse()
.withStatus(200)
.withHeader("Content-Type", "application/json")
.withBodyFile("remoteServiceResponse.json")));
}
}
Main issue is, even though I wrote the test cases, the call is actually happening to the service (Which is at my localhost) which I am not expecting to happen it. Is there any way to Mock up the data locally and make the call to dummy endpoint for POST request using Spock framework? I don't know much about to mock a dummy endpoint.
Your help is highly appreciated.
Thanks.