/*
    * ====================================================================
    * 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
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  package org.apache.hc.client5.http.protocol;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.hc.core5.http.Header;
  import org.apache.hc.core5.http.HttpRequest;
  import org.apache.hc.core5.http.HttpRequestInterceptor;
  import org.apache.hc.core5.http.message.BasicHeader;
  import org.apache.hc.core5.http.message.BasicHttpRequest;
  import org.apache.hc.core5.http.protocol.HttpContext;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  class TestRequestDefaultHeaders {
  
      @Test
      void testRequestParameterCheck() {
          final HttpContext context = HttpClientContext.create();
          final HttpRequestInterceptor interceptor = RequestDefaultHeaders.INSTANCE;
          Assertions.assertThrows(NullPointerException.class, () ->
                  interceptor.process(null, null, context));
      }
  
      @Test
      void testNoDefaultHeadersForConnectRequest() throws Exception {
          final HttpRequest request = new BasicHttpRequest("CONNECT", "www.somedomain.com");
          final List<Header> defheaders = new ArrayList<>();
          defheaders.add(new BasicHeader("custom", "stuff"));
          final HttpContext context = HttpClientContext.create();
  
          final HttpRequestInterceptor interceptor = new RequestDefaultHeaders(defheaders);
          interceptor.process(request, null, context);
          final Header header1 = request.getFirstHeader("custom");
          Assertions.assertNull(header1);
      }
  
      @Test
      void testDefaultHeaders() throws Exception {
          final HttpRequest request = new BasicHttpRequest("GET", "/");
          request.addHeader("custom", "stuff");
          final List<Header> defheaders = new ArrayList<>();
          defheaders.add(new BasicHeader("custom", "other stuff"));
          final HttpContext context = HttpClientContext.create();
  
          final HttpRequestInterceptor interceptor = new RequestDefaultHeaders(defheaders);
          interceptor.process(request, null, context);
          final Header[] headers = request.getHeaders("custom");
          Assertions.assertNotNull(headers);
          Assertions.assertEquals(1, headers.length);
          Assertions.assertEquals("stuff", headers[0].getValue());
      }
  
  }