/*
    * ====================================================================
    * 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.core5.http.message;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  
  import org.apache.hc.core5.http.ParseException;
  import org.apache.hc.core5.util.CharArrayBuffer;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  /**
   * Unit tests for {@link BufferedHeader}.
   *
   */
  public class TestBufferedHeader {
  
      @Test
      public void testBasicConstructor() throws Exception {
          final CharArrayBuffer buf = new CharArrayBuffer(32);
          buf.append("name: value");
          final BufferedHeader header = new BufferedHeader(buf, false);
          Assertions.assertEquals("name", header.getName());
          Assertions.assertEquals("value", header.getValue());
          Assertions.assertSame(buf, header.getBuffer());
          Assertions.assertEquals(5, header.getValuePos());
      }
  
      @Test
      public void testSerialization() throws Exception {
          final CharArrayBuffer buf = new CharArrayBuffer(32);
          buf.append("name: value");
          final BufferedHeader orig = new BufferedHeader(buf, false);
          final ByteArrayOutputStream outbuffer = new ByteArrayOutputStream();
          final ObjectOutputStream outStream = new ObjectOutputStream(outbuffer);
          outStream.writeObject(orig);
          outStream.close();
          final byte[] raw = outbuffer.toByteArray();
          final ByteArrayInputStream inBuffer = new ByteArrayInputStream(raw);
          final ObjectInputStream inStream = new ObjectInputStream(inBuffer);
          final BufferedHeader clone = (BufferedHeader) inStream.readObject();
          Assertions.assertEquals(orig.getName(), clone.getName());
          Assertions.assertEquals(orig.getValue(), clone.getValue());
      }
  
      @Test
      public void testInvalidHeaderParsing() throws Exception {
          final CharArrayBuffer buf = new CharArrayBuffer(16);
          buf.clear();
          buf.append("");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, false));
          buf.clear();
          buf.append("blah");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, false));
          buf.clear();
          buf.append(":");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, false));
          buf.clear();
          buf.append("   :");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, false));
          buf.clear();
          buf.append(": blah");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, false));
          buf.clear();
          buf.append(" : blah");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, false));
          buf.clear();
          buf.append("header : blah");
          Assertions.assertThrows(ParseException.class, () -> new BufferedHeader(buf, true));
      }
  
 }