org.zalando.riptide.RedirectTest.java Source code

Introduction

Here is the source code for org.zalando.riptide.RedirectTest.java

Source

package org.zalando.riptide;

/*
 * ?
 * Riptide
 * ??
 * Copyright (C) 2015 - 2016 Zalando SE
 * ??
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ?
 */

import org.junit.Test;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.test.web.client.MockRestServiceServer;
import org.springframework.web.client.RestTemplate;

import java.net.URI;

import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import static org.springframework.http.HttpMethod.POST;
import static org.springframework.http.HttpStatus.Series.REDIRECTION;
import static org.springframework.http.HttpStatus.Series.SUCCESSFUL;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withStatus;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
import static org.zalando.riptide.Conditions.on;
import static org.zalando.riptide.Selectors.series;

public final class RedirectTest {

    private final Rest unit;
    private final MockRestServiceServer server;

    public RedirectTest() {
        final RestTemplate template = new RestTemplate();
        template.setErrorHandler(new PassThroughResponseErrorHandler());
        this.server = MockRestServiceServer.createServer(template);
        this.unit = Rest.create(template);
    }

    @Test
    public void shouldFollowRedirect() {
        final URI originalUrl = URI.create("https://api.example.com/accounts/123");
        final URI redirectUrl = URI.create("https://api.example.org/accounts/123");

        server.expect(requestTo(originalUrl))
                .andRespond(withStatus(HttpStatus.MOVED_PERMANENTLY).location(redirectUrl));

        server.expect(requestTo(redirectUrl))
                .andRespond(withSuccess().contentType(MediaType.TEXT_PLAIN).body("123"));

        assertThat(send(originalUrl), is("123"));
    }

    private String send(URI url) {
        return unit.execute(POST, url)
                .dispatch(series(), on(SUCCESSFUL, String.class).capture(),
                        on(REDIRECTION).map(response -> send(response.getHeaders().getLocation())).capture())
                .to(String.class);
    }

}