WireMock stubbing using browser proxying (like Hoverfly)

JvmBrowserProxyTest.java

package com.github.tomakehurst.wiremock;

import com.github.tomakehurst.wiremock.junit.WireMockRule;
import com.google.common.io.ByteStreams;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

import java.net.URL;

import static com.github.tomakehurst.wiremock.client.WireMock.*;
import static com.github.tomakehurst.wiremock.core.WireMockConfiguration.wireMockConfig;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;

public class JvmBrowserProxyTest {

    @Rule
    public WireMockRule wm = new WireMockRule(wireMockConfig().dynamicPort().enableBrowserProxying(true));

    @Before
    public void initJvmProxySettings() {
        // This is what Hoverfly does for you transparently
        System.setProperty("http.proxyHost", "localhost");
        System.setProperty("http.proxyPort", String.valueOf(wm.port()));
    }

    @Test
    public void canStubViaProxyLikeHoverfly() throws Exception {
        wm.stubFor(get("/callme/ping")
                .withHost(equalTo("callme-service"))
                .willReturn(ok("I'm callme-service v1.")));

        URL url = new URL("http://callme-service/callme/ping");
        String responseBody = new String(ByteStreams.toByteArray(url.openConnection().getInputStream()));
      
        assertThat(responseBody, is("I'm callme-service v1."));
    }
}