//
// WebHeaderCollectionTest.cs - NUnit Test Cases for System.Net.WebHeaderCollection
//
// Authors:
//   Lawrence Pit (loz@cable.a2000.nl)
//   Martin Willemoes Hansen (mwh@sysrq.dk)
//   Gert Driesen (drieseng@users.sourceforge.net)
//
// (C) 2003 Martin Willemoes Hansen
//

using System;
using System.Collections;
using System.Collections.Specialized;
using System.IO;
using System.Net;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters;
using System.Runtime.Serialization.Formatters.Binary;

using NUnit.Framework;

namespace MonoTests.System.Net
{
	[TestFixture]
	public class WebHeaderCollectionTest
	{
		WebHeaderCollection col;

		[SetUp]
		public void GetReady ()
		{
			col = new WebHeaderCollection ();
			col.Add ("Name1: Value1");
			col.Add ("Name2: Value2");
		}

		[Test]
		public void Add ()
		{
			try {
				col.Add (null);
				Assert.Fail ("#1");
			} catch (ArgumentNullException) { }
			try {
				col.Add ("");
				Assert.Fail ("#2");
			} catch (ArgumentException) { }
			try {
				col.Add ("  ");
				Assert.Fail ("#3");
			} catch (ArgumentException) { }
			try {
				col.Add (":");
				Assert.Fail ("#4");
			} catch (ArgumentException) { }
			try {
				col.Add (" : ");
				Assert.Fail ("#5");
			} catch (ArgumentException) { }

			try {
				col.Add ("XHost: foo");
			} catch (ArgumentException) {
				Assert.Fail ("#7");
			}

			// invalid values
			try {
				col.Add ("XHost" + ((char) 0xa9) + ": foo");
				Assert.Fail ("#8");
			} catch (ArgumentException) { }
			try {
				col.Add ("XHost: foo" + (char) 0xa9);
			} catch (ArgumentException) {
				Assert.Fail ("#9");
			}
			try {
				col.Add ("XHost: foo" + (char) 0x7f);
				Assert.Fail ("#10");
			} catch (ArgumentException) {

			}

			try {
				col.Add ("XHost", null);
			} catch (ArgumentException) {
				Assert.Fail ("#11");
			}
			try {
				col.Add ("XHost:");
			} catch (ArgumentException) {
				Assert.Fail ("#12");
			}

			// restricted
			/*
			// this can only be tested in namespace System.Net
			try {
				WebHeaderCollection col2 = new WebHeaderCollection (true);
				col2.Add ("Host: foo");
				Assert.Fail ("#13: should fail according to spec");
			} catch (ArgumentException) {}		
			*/
		}

		[Test]
		[Category ("NotWorking")]
		public void GetValues ()
		{
			WebHeaderCollection w = new WebHeaderCollection ();
			w.Add ("Hello", "H1");
			w.Add ("Hello", "H2");
			w.Add ("Hello", "H3,H4");

			string [] sa = w.GetValues ("Hello");
			Assert.AreEqual (3, sa.Length, "#1");
			Assert.AreEqual ("H1, H2,H3,H4", w.Get ("Hello"), "#2");

			w = new WebHeaderCollection ();
			w.Add ("Accept", "H1");
			w.Add ("Accept", "H2");
			w.Add ("Accept", "H3,H4");
			Assert.AreEqual (3, w.GetValues (0).Length, "#3a");
			Assert.AreEqual (4, w.GetValues ("Accept").Length, "#3b");
			Assert.AreEqual ("H1, H2,H3,H4", w.Get ("Accept"), "#4");

			w = new WebHeaderCollection ();
			w.Add ("Allow", "H1");
			w.Add ("Allow", "H2");
			w.Add ("Allow", "H3,H4");
			sa = w.GetValues ("Allow");
			Assert.AreEqual (4, sa.Length, "#5");
			Assert.AreEqual ("H1, H2,H3,H4", w.Get ("Allow"), "#6");

			w = new WebHeaderCollection ();
			w.Add ("AUTHorization", "H1, H2, H3");
			sa = w.GetValues ("authorization");
			Assert.AreEqual (3, sa.Length, "#9");

			w = new WebHeaderCollection ();
			w.Add ("proxy-authenticate", "H1, H2, H3");
			sa = w.GetValues ("Proxy-Authenticate");
			Assert.AreEqual (3, sa.Length, "#9");

			w = new WebHeaderCollection ();
			w.Add ("expect", "H1,\tH2,   H3  ");
			sa = w.GetValues ("EXPECT");
			Assert.AreEqual (3, sa.Length, "#10");
			Assert.AreEqual ("H2", sa [1], "#11");
			Assert.AreEqual ("H3", sa [2], "#12");

			try {
				w.GetValues (null);
				Assert.Fail ("#13");
			} catch (ArgumentNullException) { }
			Assert.AreEqual (null, w.GetValues (""), "#14");
			Assert.AreEqual (null, w.GetValues ("NotExistent"), "#15");
		}

		[Test]
		public void Indexers ()
		{
#if NET_2_0
		Assert.AreEqual ("Value1", ((NameValueCollection)col)[0], "#1.1");
		//FIXME: test also HttpRequestHeader and HttpResponseHeader
#else
			Assert.AreEqual ("Value1", col [0], "#1");
#endif
			Assert.AreEqual ("Value1", col ["Name1"], "#2");
			Assert.AreEqual ("Value1", col ["NAME1"], "#3");
		}

		[Test]
		public void Remove ()
		{
			col.Remove ("Name1");
			col.Remove ("NameNotExist");
			Assert.AreEqual (1, col.Count, "#1");

			/*
			// this can only be tested in namespace System.Net
			try {
				WebHeaderCollection col2 = new WebHeaderCollection (true);
				col2.Add ("Host", "foo");
				col2.Remove ("Host");
				Assert.Fail ("#2: should fail according to spec");
			} catch (ArgumentException) {}
			*/
		}

		[Test]
		public void Set ()
		{
			col.Add ("Name1", "Value1b");
			col.Set ("Name1", "\t  X  \t");
			Assert.AreEqual ("X", col.Get ("Name1"), "#1");
		}

		[Test]
		public void IsRestricted ()
		{
			Assert.IsTrue (!WebHeaderCollection.IsRestricted ("Xhost"), "#1");
			Assert.IsTrue (WebHeaderCollection.IsRestricted ("Host"), "#2");
			Assert.IsTrue (WebHeaderCollection.IsRestricted ("HOST"), "#3");
			Assert.IsTrue (WebHeaderCollection.IsRestricted ("Transfer-Encoding"), "#4");
			Assert.IsTrue (WebHeaderCollection.IsRestricted ("user-agent"), "#5");
			Assert.IsTrue (WebHeaderCollection.IsRestricted ("accept"), "#6");
			Assert.IsTrue (!WebHeaderCollection.IsRestricted ("accept-charset"), "#7");
		}

		[Test]
		public void ToStringTest ()
		{
			col.Add ("Name1", "Value1b");
			col.Add ("Name3", "Value3a\r\n Value3b");
			col.Add ("Name4", "   Value4   ");
			Assert.AreEqual ("Name1: Value1,Value1b\r\nName2: Value2\r\nName3: Value3a\r\n Value3b\r\nName4: Value4\r\n\r\n", col.ToString (), "#1");
		}

		[Test]
#if TARGET_JVM
		//FIXME: include Java serialization compliant tests - the order of object
		// in SerializationInfo should stay same to MS format...
		[Ignore ("The MS compliant binary serialization is not supported")]
#endif			
		public void GetObjectData ()
		{
			SerializationInfo si = new SerializationInfo (typeof (WebHeaderCollection),
				new FormatterConverter ());

			WebHeaderCollection headers = new WebHeaderCollection ();
			headers.Add ("Content-Type", "image/png");
			headers.Add ("No-Cache:off");
			headers.Add ("Disposition", "attach");

			((ISerializable) headers).GetObjectData (si, new StreamingContext ());
			Assert.AreEqual (7, si.MemberCount, "#A");
			int i = 0;
			foreach (SerializationEntry entry in si) {
				Assert.IsNotNull (entry.Name, "#B1:" + i);
				Assert.IsNotNull (entry.ObjectType, "#B2:" + i);
				Assert.IsNotNull (entry.Value, "#B3:" + i);

				switch (i) {
				case 0:
					Assert.AreEqual ("Count", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (int), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual (3, entry.Value, "#B6:" + i);
					break;
				case 1:
					Assert.AreEqual ("0", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (string), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual ("Content-Type", entry.Value, "#B6:" + i);
					break;
				case 2:
					Assert.AreEqual ("3", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (string), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual ("image/png", entry.Value, "#B6:" + i);
					break;
				case 3:
					Assert.AreEqual ("1", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (string), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual ("No-Cache", entry.Value, "#B6:" + i);
					break;
				case 4:
					Assert.AreEqual ("4", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (string), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual ("off", entry.Value, "#B6:" + i);
					break;
				case 5:
					Assert.AreEqual ("2", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (string), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual ("Disposition", entry.Value, "#B6:" + i);
					break;
				case 6:
					Assert.AreEqual ("5", entry.Name, "#B4:" + i);
					Assert.AreEqual (typeof (string), entry.ObjectType, "#B5:" + i);
					Assert.AreEqual ("attach", entry.Value, "#B6:" + i);
					break;
				}
				i++;
			}
		}

		[Test]
#if TARGET_JVM
		//FIXME: include Java serialization compliant tests
		[Ignore ("The MS compliant binary serialization is not supported")]
#endif		
		public void Serialize ()
		{
			WebHeaderCollection headers = new WebHeaderCollection ();
			headers.Add ("Content-Type", "image/png");
			headers.Add ("No-Cache:off");
			headers.Add ("Disposition", "attach");

			BinaryFormatter bf = new BinaryFormatter ();
			bf.AssemblyFormat = FormatterAssemblyStyle.Full;

			MemoryStream ms = new MemoryStream ();
			bf.Serialize (ms, headers);
			ms.Position = 0;

			byte [] buffer = new byte [ms.Length];
			ms.Read (buffer, 0, buffer.Length);
			Assert.AreEqual (_serialized, buffer);
		}

		[Test]
#if TARGET_JVM
		//FIXME: include Java serialization compliant tests
		[Ignore ("The MS compliant binary serialization format is not supported")]
#endif				
		public void Deserialize ()
		{
			MemoryStream ms = new MemoryStream ();
			ms.Write (_serialized, 0, _serialized.Length);
			ms.Position = 0;

			BinaryFormatter bf = new BinaryFormatter ();
			WebHeaderCollection headers = (WebHeaderCollection) bf.Deserialize (ms);
		}

		private static readonly byte [] _serialized = new byte [] {
#if NET_2_0
			0x00, 0x01, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00,
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#else
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#endif
		};
	}
}