httpclient5-testing/src/test/java/org/apache/hc/client5/testing/sync/TestBasicConnectionManager.java

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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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package org.apache.hc.client5.testing.sync;

import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager;
import org.apache.hc.client5.testing.classic.RandomHandler;
import org.apache.hc.client5.testing.sync.extension.TestClientResources;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.URIScheme;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.testing.classic.ClassicTestServer;
import org.apache.hc.core5.util.Timeout;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;

public class TestBasicConnectionManager {

    public static final Timeout TIMEOUT = Timeout.ofMinutes(1);

    @RegisterExtension
    private TestClientResources testResources = new TestClientResources(URIScheme.HTTP, TIMEOUT);

    @Test
    public void testBasics() throws Exception {
        final ClassicTestServer server = testResources.startServer(null, null, null);
        server.registerHandler("/random/*", new RandomHandler());
        final HttpHost target = testResources.targetHost();

        final CloseableHttpClient client = testResources.startClient(builder -> builder
                .setConnectionManager(new BasicHttpClientConnectionManager())
        );

        final HttpGet get = new HttpGet("/random/1024");
        client.execute(target, get, response -> {
            Assertions.assertEquals(200, response.getCode());
            EntityUtils.consume(response.getEntity());
            return null;
        });
    }

    @Test
    public void testConnectionStillInUse() throws Exception {
        final ClassicTestServer server = testResources.startServer(null, null, null);
        server.registerHandler("/random/*", new RandomHandler());
        final HttpHost target = testResources.targetHost();

        final CloseableHttpClient client = testResources.startClient(builder -> builder
                .setConnectionManager(new BasicHttpClientConnectionManager())
        );

        final HttpGet get1 = new HttpGet("/random/1024");
        client.executeOpen(target, get1, null);
        final HttpGet get2 = new HttpGet("/random/1024");
        Assertions.assertThrows(IllegalStateException.class, () ->
                client.executeOpen(target, get2, null));
    }

}