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    * Licensed to the Apache Software Foundation (ASF) under one
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    * 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,
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   * "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.
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   *
   * 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 static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.util.Collections;
  
  import org.apache.hc.core5.http.HttpRequest;
  import org.apache.hc.core5.http.HttpVersion;
  import org.apache.hc.core5.http.ProtocolVersion;
  import org.apache.hc.core5.http.message.BasicHttpRequest;
  import org.apache.hc.core5.http.support.BasicRequestBuilder;
  import org.junit.Before;
  import org.junit.Test;
  
  public class TestRequestProtocolCompliance {
  
      private RequestProtocolCompliance impl;
  
      @Before
      public void setUp() {
          impl = new RequestProtocolCompliance(false);
      }
  
      @Test
      public void testRequestWithWeakETagAndRange() throws Exception {
          final HttpRequest req = new BasicHttpRequest("GET", "/");
          req.setHeader("Range", "bytes=0-499");
          req.setHeader("If-Range", "W/\"weak\"");
          assertEquals(1, impl.requestIsFatallyNonCompliant(req).size());
      }
  
      @Test
      public void testRequestWithWeekETagForPUTOrDELETEIfMatch() throws Exception {
          final HttpRequest req = new BasicHttpRequest("PUT", "http://example.com/");
          req.setHeader("If-Match", "W/\"weak\"");
          assertEquals(1, impl.requestIsFatallyNonCompliant(req).size());
      }
  
      @Test
      public void testRequestWithWeekETagForPUTOrDELETEIfMatchAllowed() throws Exception {
          final HttpRequest req = new BasicHttpRequest("PUT", "http://example.com/");
          req.setHeader("If-Match", "W/\"weak\"");
          impl = new RequestProtocolCompliance(true);
          assertEquals(Collections.emptyList(), impl.requestIsFatallyNonCompliant(req));
      }
  
      @Test
      public void testRequestContainsNoCacheDirectiveWithFieldName() throws Exception {
          final HttpRequest req = new BasicHttpRequest("GET", "/");
          req.setHeader("Cache-Control", "no-cache=false");
          assertEquals(1, impl.requestIsFatallyNonCompliant(req).size());
      }
  
      @Test
      public void doesNotModifyACompliantRequest() throws Exception {
          final HttpRequest req = new BasicHttpRequest("GET", "/");
          final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
          impl.makeRequestCompliant(wrapper);
          assertTrue(HttpTestUtils.equivalent(req, wrapper));
      }
  
      @Test
      public void upgrades1_0RequestTo1_1() throws Exception {
          final HttpRequest req = new BasicHttpRequest("GET", "/");
          req.setVersion(HttpVersion.HTTP_1_0);
          final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
          impl.makeRequestCompliant(wrapper);
          assertEquals(HttpVersion.HTTP_1_1, wrapper.getVersion());
      }
  
      @Test
      public void downgrades1_2RequestTo1_1() throws Exception {
         final HttpRequest req = new BasicHttpRequest("GET", "/");
         req.setVersion(new ProtocolVersion("HTTP", 1, 2));
         final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
         impl.makeRequestCompliant(wrapper);
         assertEquals(HttpVersion.HTTP_1_1, wrapper.getVersion());
     }
 
     @Test
     public void stripsMinFreshFromRequestIfNoCachePresent()
         throws Exception {
         final HttpRequest req = new BasicHttpRequest("GET", "/");
         req.setHeader("Cache-Control", "no-cache, min-fresh=10");
         final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
         impl.makeRequestCompliant(wrapper);
         assertEquals("no-cache",
                 wrapper.getFirstHeader("Cache-Control").getValue());
     }
 
     @Test
     public void stripsMaxFreshFromRequestIfNoCachePresent()
         throws Exception {
         final HttpRequest req = new BasicHttpRequest("GET", "/");
         req.setHeader("Cache-Control", "no-cache, max-stale=10");
         final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
         impl.makeRequestCompliant(wrapper);
         assertEquals("no-cache",
                 wrapper.getFirstHeader("Cache-Control").getValue());
     }
 
     @Test
     public void stripsMaxAgeFromRequestIfNoCachePresent()
         throws Exception {
         final HttpRequest req = new BasicHttpRequest("GET", "/");
         req.setHeader("Cache-Control", "no-cache, max-age=10");
         final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
         impl.makeRequestCompliant(wrapper);
         assertEquals("no-cache",
                 wrapper.getFirstHeader("Cache-Control").getValue());
     }
 
     @Test
     public void doesNotStripMinFreshFromRequestWithoutNoCache()
         throws Exception {
         final HttpRequest req = new BasicHttpRequest("GET", "/");
         req.setHeader("Cache-Control", "min-fresh=10");
         final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
         impl.makeRequestCompliant(wrapper);
         assertEquals("min-fresh=10",
                 wrapper.getFirstHeader("Cache-Control").getValue());
     }
 
     @Test
     public void correctlyStripsMinFreshFromMiddleIfNoCache()
         throws Exception {
         final HttpRequest req = new BasicHttpRequest("GET", "/");
         req.setHeader("Cache-Control", "no-cache,min-fresh=10,no-store");
         final HttpRequest wrapper = BasicRequestBuilder.copy(req).build();
         impl.makeRequestCompliant(wrapper);
         assertEquals("no-cache,no-store",
                 wrapper.getFirstHeader("Cache-Control").getValue());
     }
 
 }