com.github.tomakehurst.wiremock.ResponseDelayAsynchronousAcceptanceTest.java Source code

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Here is the source code for com.github.tomakehurst.wiremock.ResponseDelayAsynchronousAcceptanceTest.java

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/*
 * Copyright (C) 2011 Thomas Akehurst
 *
 * 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.
 */
package com.github.tomakehurst.wiremock;

import com.github.tomakehurst.wiremock.core.WireMockConfiguration;
import com.github.tomakehurst.wiremock.http.HttpClientFactory;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import com.google.common.base.Stopwatch;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.junit.Rule;
import org.junit.Test;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

import static com.github.tomakehurst.wiremock.client.WireMock.*;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.Matchers.greaterThan;
import static org.junit.Assert.assertThat;

public class ResponseDelayAsynchronousAcceptanceTest {

    private static final int SOCKET_TIMEOUT_MILLISECONDS = 500;
    private static final int SHORTER_THAN_SOCKET_TIMEOUT = SOCKET_TIMEOUT_MILLISECONDS / 2;

    private ExecutorService httpClientExecutor = Executors.newCachedThreadPool();

    @Rule
    public WireMockRule wireMockRule = new WireMockRule(getOptions());

    private WireMockConfiguration getOptions() {
        WireMockConfiguration wireMockConfiguration = new WireMockConfiguration();
        wireMockConfiguration.jettyAcceptors(1).containerThreads(4);
        wireMockConfiguration.asynchronousResponseEnabled(true);
        wireMockConfiguration.asynchronousResponseThreads(10);
        return wireMockConfiguration;
    }

    @Test
    public void addsFixedDelayAsynchronously() throws Exception {
        stubFor(get("/delayed").willReturn(ok().withFixedDelay(SHORTER_THAN_SOCKET_TIMEOUT)));

        List<Future<TimedHttpResponse>> responses = httpClientExecutor.invokeAll(getHttpRequestCallables(5));

        for (Future<TimedHttpResponse> response : responses) {
            TimedHttpResponse timedResponse = response.get();
            assertThat(timedResponse.response.getStatusLine().getStatusCode(), is(200));
            assertThat(timedResponse.milliseconds, greaterThan((double) SHORTER_THAN_SOCKET_TIMEOUT));
        }
    }

    @Test
    public void addsRandomDelayAsynchronously() throws Exception {
        stubFor(get("/delayed").willReturn(ok().withUniformRandomDelay(100, 300)));

        List<Future<TimedHttpResponse>> responses = httpClientExecutor.invokeAll(getHttpRequestCallables(5));

        for (Future<TimedHttpResponse> response : responses) {
            TimedHttpResponse timedResponse = response.get();
            assertThat(timedResponse.response.getStatusLine().getStatusCode(), is(200));
            assertThat(timedResponse.milliseconds, greaterThan(100.0));
        }
    }

    private List<Callable<TimedHttpResponse>> getHttpRequestCallables(int requestCount) throws IOException {
        List<Callable<TimedHttpResponse>> requests = new ArrayList<>();
        for (int i = 0; i < requestCount; i++) {
            final Stopwatch stopwatch = Stopwatch.createStarted();
            requests.add(new Callable<TimedHttpResponse>() {
                @Override
                public TimedHttpResponse call() throws Exception {
                    CloseableHttpResponse response = HttpClientFactory.createClient(SOCKET_TIMEOUT_MILLISECONDS)
                            .execute(
                                    new HttpGet(String.format("http://localhost:%d/delayed", wireMockRule.port())));

                    return new TimedHttpResponse(response, stopwatch.stop().elapsed(MILLISECONDS));
                }
            });
        }
        return requests;
    }

    private static class TimedHttpResponse {
        public final HttpResponse response;
        public final double milliseconds;

        public TimedHttpResponse(HttpResponse response, long milliseconds) {
            this.response = response;
            this.milliseconds = milliseconds;
        }
    }

}