/*
    * ====================================================================
    * 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 org.apache.hc.core5.http.HeaderElement;
  import org.apache.hc.core5.http.NameValuePair;
  import org.apache.hc.core5.util.CharArrayBuffer;
  import org.junit.Assert;
  import org.junit.Test;
  
  /**
   * Simple tests for {@link HeaderElement}.
   */
  public class TestHeaderElement {
  
      @Test
      public void testConstructor3() throws Exception {
          final HeaderElement element = new BasicHeaderElement("name", "value",
                  new NameValuePair[] {
                      new BasicNameValuePair("param1", "value1"),
                      new BasicNameValuePair("param2", "value2")
                  } );
          Assert.assertEquals("name", element.getName());
          Assert.assertEquals("value", element.getValue());
          Assert.assertEquals(2, element.getParameters().length);
          Assert.assertEquals("value1", element.getParameterByName("param1").getValue());
          Assert.assertEquals("value2", element.getParameterByName("param2").getValue());
      }
  
      @Test
      public void testConstructor2() throws Exception {
          final HeaderElement element = new BasicHeaderElement("name", "value");
          Assert.assertEquals("name", element.getName());
          Assert.assertEquals("value", element.getValue());
          Assert.assertEquals(0, element.getParameters().length);
      }
  
  
      @Test
      public void testInvalidName() {
          try {
              new BasicHeaderElement(null, null, null);
              Assert.fail("NullPointerException should have been thrown");
          } catch (final NullPointerException ex) {
              //expected
          }
      }
  
      @Test
      public void testParamByName() throws Exception {
          final String s = "name = value; param1 = value1; param2 = value2";
          final CharArrayBuffer buf = new CharArrayBuffer(64);
          buf.append(s);
          final ParserCursor cursor = new ParserCursor(0, buf.length());
          final HeaderElement element = BasicHeaderValueParser.INSTANCE.parseHeaderElement(buf, cursor);
          Assert.assertEquals("value1", element.getParameterByName("param1").getValue());
          Assert.assertEquals("value2", element.getParameterByName("param2").getValue());
          Assert.assertNull(element.getParameterByName("param3"));
          try {
              element.getParameterByName(null);
              Assert.fail("NullPointerException should have been thrown");
          } catch (final NullPointerException ex) {
              //expected
          }
      }
  
      @Test
      public void testToString() {
          final BasicHeaderElement element = new BasicHeaderElement("name", "value",
                  new NameValuePair[] {
                          new BasicNameValuePair("param1", "value1"),
                          new BasicNameValuePair("param2", "value2")
                  } );
          Assert.assertEquals("name=value; param1=value1; param2=value2", element.toString());
     }
 
 }