/*
    * Copyright (C) 2018 Matthias Sohn <matthias.sohn@sap.com>
    * and other copyright owners as documented in the project's IP log.
    *
    * This program and the accompanying materials are made available
    * under the terms of the Eclipse Distribution License v1.0 which
    * accompanies this distribution, is reproduced below, and is
    * available at http://www.eclipse.org/org/documents/edl-v10.php
    *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or
   * without modification, are permitted provided that the following
   * conditions are met:
   *
   * - Redistributions of source code must retain the above copyright
   *   notice, this list of conditions and the following disclaimer.
   *
   * - Redistributions in binary form must reproduce the above
   *   copyright notice, this list of conditions and the following
   *   disclaimer in the documentation and/or other materials provided
   *   with the distribution.
   *
   * - Neither the name of the Eclipse Foundation, Inc. nor the
   *   names of its contributors may be used to endorse or promote
   *   products derived from this software without specific prior
   *   written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  package org.eclipse.jgit.transport.http;
  
  import static java.util.Arrays.asList;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import java.net.HttpURLConnection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.Map;
  
  import org.junit.Before;
  import org.junit.Test;
  
  public class JDKHttpConnectionTest {
  
  	private Map<String, List<String>> headers = new HashMap<>();
  
  	private HttpURLConnection u;
  
  	private JDKHttpConnection c;
  
  	@Before
  	public void setup() {
  		u = mock(HttpURLConnection.class);
  		c = new JDKHttpConnection(u);
  		headers.put("ABC", asList("x"));
  	}
  
  	@Test
  	public void testSingle() {
  		when(u.getHeaderFields()).thenReturn(headers);
  		assertValues("AbC", "x");
  	}
  
  	@Test
  	public void testMultiple1() {
  		headers.put("abc", asList("a"));
  		headers.put("aBC", asList("d", "e"));
  		headers.put("ABc", Collections.emptyList());
  		headers.put("AbC", (List<String>) null);
  		when(u.getHeaderFields()).thenReturn(headers);
  		assertValues("AbC", "a", "d", "e", "x");
  	}
  
  	@Test
  	public void testMultiple2() {
  		headers.put("ab", asList("y", "z", "z"));
  		when(u.getHeaderFields()).thenReturn(headers);
  		assertValues("ab", "z", "y", "z");
  		assertValues("abc", "x");
  		assertValues("aBc", "x");
  		assertValues("AbCd");
 	}
 
 	@Test
 	public void testCommaSeparatedList() {
 		headers.put("abc", asList("a,b,c", "d"));
 		when(u.getHeaderFields()).thenReturn(headers);
 		assertValues("Abc", "a,b,c", "x", "d");
 	}
 
 	private void assertValues(String key, String... values) {
 		List<String> l = new LinkedList<>();
 		List<String> hf = c.getHeaderFields(key);
 		if (hf != null) {
 			l.addAll(hf);
 		}
 		for (String v : values) {
 			if (!l.remove(v)) {
 				fail("value " + v + " not found");
 			}
 		}
 		assertTrue("found unexpected entries " + l, l.isEmpty());
 	}
 
 }