TestDefaultConnKeepAliveStrategy.java

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 * to you under the Apache License, Version 2.0 (the
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package org.apache.hc.client5.http.impl;

import org.apache.hc.client5.http.ConnectionKeepAliveStrategy;
import org.apache.hc.client5.http.config.RequestConfig;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.HttpStatus;
import org.apache.hc.core5.http.message.BasicHttpResponse;
import org.apache.hc.core5.util.TimeValue;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

/**
 *  Simple tests for {@link DefaultConnectionKeepAliveStrategy}.
 */
class TestDefaultConnKeepAliveStrategy {

    @Test
    void testIllegalResponseArg() {
        final HttpClientContext context = HttpClientContext.create();
        final ConnectionKeepAliveStrategy keepAliveStrat = new DefaultConnectionKeepAliveStrategy();
        Assertions.assertThrows(NullPointerException.class, () ->
                keepAliveStrat.getKeepAliveDuration(null, context));
    }

    @Test
    void testNoKeepAliveHeader() {
        final HttpClientContext context = HttpClientContext.create();
        context.setRequestConfig( RequestConfig.custom()
                .setConnectionKeepAlive(TimeValue.NEG_ONE_MILLISECOND)
                .build());
        final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
        final ConnectionKeepAliveStrategy keepAliveStrat = new DefaultConnectionKeepAliveStrategy();
        final TimeValue d = keepAliveStrat.getKeepAliveDuration(response, context);
        Assertions.assertEquals(TimeValue.NEG_ONE_MILLISECOND, d);
    }

    @Test
    void testEmptyKeepAliveHeader() {
        final HttpClientContext context = HttpClientContext.create();
        context.setRequestConfig( RequestConfig.custom()
                .setConnectionKeepAlive(TimeValue.NEG_ONE_MILLISECOND)
                .build());
        final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
        response.addHeader("Keep-Alive", "timeout, max=20");
        final ConnectionKeepAliveStrategy keepAliveStrat = new DefaultConnectionKeepAliveStrategy();
        final TimeValue d = keepAliveStrat.getKeepAliveDuration(response, context);
        Assertions.assertEquals(TimeValue.NEG_ONE_MILLISECOND, d);
    }

    @Test
    void testInvalidKeepAliveHeader() {
        final HttpClientContext context = HttpClientContext.create();
        context.setRequestConfig( RequestConfig.custom()
                .setConnectionKeepAlive(TimeValue.NEG_ONE_MILLISECOND)
                .build());
        final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
        response.addHeader("Keep-Alive", "timeout=whatever, max=20");
        final ConnectionKeepAliveStrategy keepAliveStrat = new DefaultConnectionKeepAliveStrategy();
        final TimeValue d = keepAliveStrat.getKeepAliveDuration(response, context);
        Assertions.assertEquals(TimeValue.NEG_ONE_MILLISECOND, d);
    }

    @Test
    void testKeepAliveHeader() {
        final HttpClientContext context = HttpClientContext.create();
        context.setRequestConfig( RequestConfig.custom()
                .setConnectionKeepAlive(TimeValue.NEG_ONE_MILLISECOND)
                .build());
        final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
        response.addHeader("Keep-Alive", "timeout=300, max=20");
        final ConnectionKeepAliveStrategy keepAliveStrat = new DefaultConnectionKeepAliveStrategy();
        final TimeValue d = keepAliveStrat.getKeepAliveDuration(response, context);
        Assertions.assertEquals(TimeValue.ofSeconds(300), d);
    }

}