/*
    * Copyright (c) 2002-2025 Gargoyle Software Inc.
    *
    * Licensed 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
    * https://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.
   */
  package org.htmlunit;
  
  import java.io.IOException;
  import java.io.OutputStream;
  import java.util.HashMap;
  import java.util.Map;
  
  import javax.servlet.Servlet;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests for binary content.
   *
   * @author Ahmed Ashour
   * @author Ronald Brill
   */
  public class BinaryPageTest extends WebServerTestCase {
  
      /**
       * @throws Exception if the test fails
       */
      @Test
      public void binary() throws Exception {
          final Map<String, Class<? extends Servlet>> servlets = new HashMap<>();
          servlets.put("/big", BinaryServlet.class);
          startWebServer("./", null, servlets);
  
          final WebClient client = getWebClient();
  
          final Page page = client.getPage(URL_FIRST + "big");
          assertTrue(page instanceof UnexpectedPage);
      }
  
      /**
       * Servlet for {@link #binary()}.
       */
      public static class BinaryServlet extends HttpServlet {
  
          /**
           * {@inheritDoc}
           */
          @Override
          protected void doGet(final HttpServletRequest request, final HttpServletResponse response) throws IOException {
              final int length = 1000;
              response.setContentLength(length);
              final byte[] buffer = new byte[1024];
              try (OutputStream out = response.getOutputStream()) {
                  for (int i = length / buffer.length; i >= 0; i--) {
                      out.write(buffer);
                  }
              }
          }
      }
  
      /**
       * @throws Exception if the test fails
       */
      @Test
      public void chunkedBigContent() throws Exception {
          final Map<String, Class<? extends Servlet>> servlets = new HashMap<>();
          servlets.put("/bigChunked", ChunkedBigContentServlet.class);
          startWebServer("./", null, servlets);
  
          final WebClient client = getWebClient();
  
          final Page page = client.getPage(URL_FIRST + "bigChunked");
          assertTrue(page instanceof UnexpectedPage);
      }
  
      /**
       * Servlet for {@link #chunkedBigContent()}.
       */
      public static class ChunkedBigContentServlet extends HttpServlet {
  
          /**
           * {@inheritDoc}
           */
          @Override
          protected void doGet(final HttpServletRequest request, final HttpServletResponse response) throws IOException {
              response.setHeader("Transfer-Encoding", "chunked");
              final int length = 60 * 1024 * 1024;
             final byte[] buffer = new byte[1024];
             try (OutputStream out = response.getOutputStream()) {
                 for (int i = length / buffer.length; i >= 0; i--) {
                     out.write(buffer);
                 }
             }
         }
     }
 
     /**
      * @throws Exception if the test fails
      */
     @Test
     public void chunked() throws Exception {
         final String response = "HTTP/1.1 200 OK\r\n"
             + "Transfer-Encoding: chunked\r\n\r\n"
             + "5\r\n"
             + "ABCDE\r\n"
             + "5\r\n"
             + "FGHIJ\r\n"
             + "5\r\n"
             + "KLMNO\r\n"
             + "5\r\n"
             + "PQRST\r\n"
             + "5\r\n"
             + "UVWXY\r\n"
             + "1\r\n"
             + "Z\r\n"
             + "0\r\n\r\n";
 
         try (PrimitiveWebServer primitiveWebServer = new PrimitiveWebServer(null, response, null)) {
             final WebClient client = getWebClient();
 
             final TextPage page = client.getPage("http://localhost:" + primitiveWebServer.getPort() + "/" + "chunked");
             assertEquals("ABCDEFGHIJKLMNOPQRSTUVWXYZ", page.getContent());
         }
     }
 }