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    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * 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
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
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  package org.apache.hc.client5.http.impl.cache;
  
  import java.io.IOException;
  
  import org.apache.hc.client5.http.HttpRoute;
  import org.apache.hc.client5.http.cache.HttpCacheContext;
  import org.apache.hc.client5.http.classic.ExecChain;
  import org.apache.hc.client5.http.classic.ExecRuntime;
  import org.apache.hc.core5.http.ClassicHttpRequest;
  import org.apache.hc.core5.http.ClassicHttpResponse;
  import org.apache.hc.core5.http.HttpException;
  import org.apache.hc.core5.http.HttpHost;
  import org.apache.hc.core5.http.HttpResponse;
  import org.apache.hc.core5.http.HttpStatus;
  import org.apache.hc.core5.http.io.support.ClassicRequestBuilder;
  import org.apache.hc.core5.http.message.BasicClassicHttpRequest;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.mockito.MockitoAnnotations;
  
  /**
   * This class tests behavior that is allowed (MAY) by the HTTP/1.1 protocol
   * specification and for which we have implemented the behavior in HTTP cache.
   */
  class TestProtocolAllowedBehavior {
  
      static final int MAX_BYTES = 1024;
      static final int MAX_ENTRIES = 100;
      static final int ENTITY_LENGTH = 128;
  
      HttpHost host;
      HttpRoute route;
      HttpCacheContext context;
      @Mock
      ExecChain mockExecChain;
      @Mock
      ExecRuntime mockExecRuntime;
      @Mock
      HttpCache mockCache;
      ClassicHttpRequest request;
      ClassicHttpResponse originResponse;
      CacheConfig config;
      CachingExec impl;
      HttpCache cache;
  
      @BeforeEach
      void setUp() throws Exception {
          MockitoAnnotations.openMocks(this);
          host = new HttpHost("foo.example.com", 80);
  
          route = new HttpRoute(host);
  
          request = new BasicClassicHttpRequest("GET", "/foo");
  
          context = HttpCacheContext.create();
  
          originResponse = HttpTestUtils.make200Response();
  
          config = CacheConfig.custom()
                  .setMaxCacheEntries(MAX_ENTRIES)
                  .setMaxObjectSize(MAX_BYTES)
                  .setSharedCache(false)
                  .build();
  
          cache = new BasicHttpCache(config);
          impl = new CachingExec(cache, null, config);
  
          Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(originResponse);
      }
  
     public ClassicHttpResponse execute(final ClassicHttpRequest request) throws IOException, HttpException {
         return impl.execute(
                 ClassicRequestBuilder.copy(request).build(),
                 new ExecChain.Scope("test", route, request, mockExecRuntime, context),
                 mockExecChain);
     }
 
     @Test
     void testNonSharedCacheMayCacheResponsesWithCacheControlPrivate() throws Exception {
         final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET","/");
         originResponse.setHeader("Cache-Control","private,max-age=3600");
 
         final ClassicHttpRequest req2 = new BasicClassicHttpRequest("GET","/");
 
         Mockito.when(mockExecChain.proceed(Mockito.any(), Mockito.any())).thenReturn(originResponse);
 
         execute(req1);
         final HttpResponse result = execute(req2);
         Assertions.assertEquals(HttpStatus.SC_OK, result.getCode());
 
         Mockito.verifyNoInteractions(mockCache);
     }
 }