// The following types can appear anywhere in the code
// but say nothing about API or implementation usage
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

    @Subject HttpCaller httpCaller = new DefaultHttpCaller()

    def "can make successful HTTP GET call"() {
        when:
        def httpResponse = httpCaller.get('https://www.google.com/')

        then:
        httpResponse.code == 200
        httpResponse.message == 'OK'
    }

    def "throws exception when calling unknown host via HTTP GET"() {
        when:

    @Subject HttpCaller httpCaller = new DefaultHttpCaller()

    def "can make successful HTTP GET call"() {
        when:
        def httpResponse = httpCaller.get('https://www.google.com/')

        then:
        httpResponse.code == 200
        httpResponse.message == 'OK'
    }

    def "throws exception when calling unknown host via HTTP GET"() {
        when:

            connections[HttpConnection.currentConnection] = connectionAuth
        }

        if (connectionAuth.failed) {
            httpResponse.setHeader(HttpHeader.WWW_AUTHENTICATE.asString(), "basic realm=\"" + _loginService.getName() + '"')
            httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED)
            return Authentication.SEND_CONTINUE
        } else if (connectionAuth.user != null) {

        this.verifier = verifier;
    }

    @Override
    public boolean isRedirected(HttpRequest request, HttpResponse response, HttpContext context) throws ProtocolException {
        return delegate.isRedirected(request, response, context);
    }

    @Override
    public HttpUriRequest getRedirect(HttpRequest request, HttpResponse response, HttpContext context) throws ProtocolException {

        HttpServletResponse httpResponse = (HttpServletResponse) response;

        if (httpRequest.getMethod().equals(HTTP_METHOD_GET)) {
            chain.doFilter(httpRequest, httpResponse);
        } else if (httpRequest.getMethod().equals(HTTP_METHOD_PUT)) {
            doPut(httpRequest, httpResponse);
        } else if (httpRequest.getMethod().equals(HTTP_METHOD_DELETE)) {

package org.myorg.http;

public interface HttpCaller {
    HttpResponse get(String url);

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URISyntaxException;

public class DefaultHttpCaller implements HttpCaller {
    @Override
    public HttpResponse get(String url) {
        try {
            HttpURLConnection connection = (HttpURLConnection) new URI(url).toURL().openConnection();
            connection.setConnectTimeout(5000);

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URISyntaxException;

public class DefaultHttpCaller implements HttpCaller {
    @Override
    public HttpResponse get(String url) {
        try {
            HttpURLConnection connection = (HttpURLConnection) new URI(url).toURL().openConnection();
            connection.setConnectTimeout(5000);

import com.google.api.client.http.HttpBackOffUnsuccessfulResponseHandler;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.HttpUnsuccessfulResponseHandler;
import com.google.api.client.util.ExponentialBackOff;
import com.google.api.client.util.Sleeper;