//
// ResXFileRefTest.cs: Unit Tests for ResXFileRef.
//
// Authors:
//     Gert Driesen <drieseng@users.sourceforge.net>
//

using System;
using System.ComponentModel;
using System.Drawing;
using System.IO;
using System.Resources;
using System.Text;

using NUnit.Framework;

namespace MonoTests.System.Resources
{
	[TestFixture]
	public class ResXFileRefTest : MonoTests.System.Windows.Forms.TestHelper
	{
		[Test]
		public void Constructor1 ()
		{
			ResXFileRef r = new ResXFileRef ("mono.bmp", "Bitmap");
			MonoTests.System.Windows.Forms.TestHelper.RemoveWarning (r);
			Assert.AreEqual ("mono.bmp", r.FileName, "#1");
			Assert.AreEqual ("Bitmap", r.TypeName, "#2");
		}

		[Test]
		public void Constructor1_FileName_Null ()
		{
			try {
				new ResXFileRef ((string) null, "Bitmap");
				Assert.Fail ("#1");
			} catch (ArgumentNullException ex) {
				Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
				Assert.IsNotNull (ex.Message, "#3");
				Assert.IsNotNull (ex.ParamName, "#4");
				Assert.AreEqual ("fileName", ex.ParamName, "#5");
				Assert.IsNull (ex.InnerException, "#6");
			}
		}

		[Test]
		public void Constructor1_TypeName_Null ()
		{
			try {
				new ResXFileRef ("mono.bmp", (string) null);
				Assert.Fail ("#1");
			} catch (ArgumentNullException ex) {
				Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
				Assert.IsNotNull (ex.Message, "#3");
				Assert.IsNotNull (ex.ParamName, "#4");
				Assert.AreEqual ("typeName", ex.ParamName, "#5");
				Assert.IsNull (ex.InnerException, "#6");
			}
		}

		[Test]
		public void Constructor2 ()
		{
			Encoding utf8 = Encoding.UTF8;

			ResXFileRef r = new ResXFileRef ("mono.bmp", "Bitmap", utf8);
			Assert.AreEqual ("mono.bmp", r.FileName, "#A1");
			Assert.AreSame (utf8, r.TextFileEncoding, "#A2");
			Assert.AreEqual ("Bitmap", r.TypeName, "#A3");

			r = new ResXFileRef ("mono.bmp", "Bitmap", (Encoding) null);
			Assert.AreEqual ("mono.bmp", r.FileName, "#B1");
			Assert.IsNull (r.TextFileEncoding, "#B2");
			Assert.AreEqual ("Bitmap", r.TypeName, "#B3");
		}

		[Test]
		public void Constructor2_FileName_Null ()
		{
			try {
				new ResXFileRef ((string) null, "Bitmap", Encoding.UTF8);
				Assert.Fail ("#1");
			} catch (ArgumentNullException ex) {
				Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
				Assert.IsNotNull (ex.Message, "#3");
				Assert.IsNotNull (ex.ParamName, "#4");
				Assert.AreEqual ("fileName", ex.ParamName, "#5");
				Assert.IsNull (ex.InnerException, "#6");
			}
		}

		[Test]
		public void Constructor2_TypeName_Null ()
		{
			try {
				new ResXFileRef ("mono.bmp", (string) null, Encoding.UTF8);
				Assert.Fail ("#1");
			} catch (ArgumentNullException ex) {
				Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
				Assert.IsNotNull (ex.Message, "#3");
				Assert.IsNotNull (ex.ParamName, "#4");
				Assert.AreEqual ("typeName", ex.ParamName, "#5");
				Assert.IsNull (ex.InnerException, "#6");
			}
		}

		[Test]
		public void ToStringTest ()
		{
			ResXFileRef r = new ResXFileRef ("mono.bmp", "Bitmap");
			Assert.AreEqual ("mono.bmp;Bitmap", r.ToString (), "#1");

			r = new ResXFileRef ("mono.bmp", "Bitmap", Encoding.UTF8);
			Assert.AreEqual ("mono.bmp;Bitmap;utf-8", r.ToString (), "#2");

			r = new ResXFileRef ("mono.bmp", "Bitmap", (Encoding) null);
			Assert.AreEqual ("mono.bmp;Bitmap", r.ToString (), "#3");
		}
	}

	[TestFixture]
	public class ResXFileRefConverterTest : MonoTests.System.Windows.Forms.TestHelper
	{
		[SetUp]
		protected override void SetUp () {
			_converter = new ResXFileRef.Converter ();
			_tempDirectory = Path.Combine (Path.GetTempPath (), "ResXResourceReaderTest");
			if (!Directory.Exists (_tempDirectory)) {
				Directory.CreateDirectory (_tempDirectory);
			}
			_tempFileUTF7 = Path.Combine (_tempDirectory, "string_utf7.txt");
			using (StreamWriter sw = new StreamWriter (_tempFileUTF7, false, Encoding.UTF7)) {
				sw.Write ("\u0021\u0026\u002A\u003B");
			}
			base.SetUp ();
		}

		[TearDown]
		protected override void TearDown ()
		{
			if (Directory.Exists (_tempDirectory))
				Directory.Delete (_tempDirectory, true);
			base.TearDown ();
		}

		[Test]
		public void CanConvertFrom ()
		{
			Assert.IsTrue (_converter.CanConvertFrom (typeof (string)), "#1");
			Assert.IsFalse (_converter.CanConvertFrom (typeof (byte [])), "#2");
		}

		[Test]
		public void CanConvertTo ()
		{
			Assert.IsTrue (_converter.CanConvertTo (typeof (string)), "#1");
			Assert.IsFalse (_converter.CanConvertTo (typeof (MemoryStream)), "#2");
			Assert.IsFalse (_converter.CanConvertTo (typeof (Bitmap)), "#3");
		}

		[Test]
		public void ConvertFrom_File_DoesNotExist ()
		{
			// file does not exist
			string fileRef = "doesnotexist.txt;" + typeof (string).AssemblyQualifiedName;
			try {
				_converter.ConvertFrom (fileRef);
				Assert.Fail ("#A1");
			} catch (FileNotFoundException ex) {
				Assert.AreEqual (typeof (FileNotFoundException), ex.GetType (), "#A2");
				Assert.IsNull (ex.InnerException, "#A3");
				Assert.IsNotNull (ex.FileName, "#A4");
				Assert.AreEqual (Path.Combine (Directory.GetCurrentDirectory (), "doesnotexist.txt"), ex.FileName, "#A5");
				Assert.IsNotNull (ex.Message, "#A6");
			}
		}

		[Test]
		public void ConvertFrom_Type_NotSet ()
		{
			string fileRef = "doesnotexist.txt";
			try {
				_converter.ConvertFrom (fileRef);
				Assert.Fail ("#B1");
			} catch (ArgumentException ex) {
				Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
				Assert.IsNull (ex.InnerException, "#B3");
				Assert.IsNotNull (ex.Message, "#B4");
				Assert.AreEqual ("value", ex.Message, "#B5");
				Assert.IsNull (ex.ParamName, "#B6");
			}
		}

		[Test]
		public void ConvertFrom_NotString ()
		{
			Assert.IsNull (_converter.ConvertFrom (null), "#G1");
			Assert.IsNull (_converter.ConvertFrom (1), "#G2");
			Assert.IsNull (_converter.ConvertFrom (true), "#G3");
		}

		[Test]
		public void ConvertFrom_Type_String ()
		{
			// read UTF-7 content without setting encoding
			string fileRef = _tempFileUTF7 + ";" + typeof (string).AssemblyQualifiedName;
			string result = _converter.ConvertFrom (fileRef) as string;
			Assert.IsNotNull (result, "#A1");
			Assert.IsFalse (result == "\u0021\u0026\u002A\u003B", "#A2");

			// read UTF-7 content using UTF-7 encoding
			fileRef = _tempFileUTF7 + ";" + typeof (string).AssemblyQualifiedName + ";utf-7";
			result = _converter.ConvertFrom (fileRef) as string;
			Assert.IsNotNull (result, "#B1");
			Assert.AreEqual ("\u0021\u0026\u002A\u003B", result, "#B2");

			// invalid encoding
			fileRef = _tempFileUTF7 + ";" + typeof (string).AssemblyQualifiedName + ";utf-99";
			try {
				_converter.ConvertFrom (fileRef);
				Assert.Fail ("#D1");
			} catch (ArgumentException ex) {
				Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#D2");
				Assert.IsNull (ex.InnerException, "#D3");
				Assert.IsNotNull (ex.Message, "#D4");
				Assert.IsTrue (ex.Message.IndexOf ("'utf-99'") != -1, "#D5");
				Assert.IsNotNull (ex.ParamName, "#D6");
				Assert.AreEqual ("name", ex.ParamName, "#D7");
			}
		}

		[Test]
		public void ConvertFrom_Type_StreamReader ()
		{
			// read UTF-7 content without setting encoding
			string fileRef = _tempFileUTF7 + ";" + typeof (StreamReader).AssemblyQualifiedName;
			using (StreamReader sr = (StreamReader) _converter.ConvertFrom (fileRef)) {
				string result = sr.ReadToEnd ();
				Assert.IsTrue (result.Length > 0, "#D1");
				Assert.IsFalse (result == "\u0021\u0026\u002A\u003B", "#D2");
			}

			// UTF-7 encoding is set, but not used
			fileRef = _tempFileUTF7 + ";" + typeof (StreamReader).AssemblyQualifiedName + ";utf-7";
			using (StreamReader sr = (StreamReader) _converter.ConvertFrom (fileRef)) {
				string result = sr.ReadToEnd ();
				Assert.IsTrue (result.Length > 0, "#F1");
				Assert.IsFalse (result == "\u0021\u0026\u002A\u003B", "#F2");
			}

			// invalid encoding is set, no error
			fileRef = _tempFileUTF7 + ";" + typeof (StreamReader).AssemblyQualifiedName + ";utf-99";
			using (StreamReader sr = (StreamReader) _converter.ConvertFrom (fileRef)) {
				string result = sr.ReadToEnd ();
				Assert.IsTrue (result.Length > 0, "#A1");
				Assert.IsFalse (result == "\u0021\u0026\u002A\u003B", "#A2");
			}
		}

		[Test]
		public void ConvertFrom_Type_MemoryStream ()
		{
			string fileRef = _tempFileUTF7 + ";" + typeof (MemoryStream).AssemblyQualifiedName;
			using (MemoryStream ms = (MemoryStream) _converter.ConvertFrom (fileRef)) {
				Assert.IsTrue (ms.Length > 0);
			}
		}

		[Test]
		public void ConvertTo ()
		{
			ResXFileRef r = new ResXFileRef ("mono.bmp", "Bitmap");
			Assert.AreEqual ("mono.bmp;Bitmap", (string) _converter.ConvertTo (
				r, typeof (string)), "#1");

			r = new ResXFileRef ("mono.bmp", "Bitmap", Encoding.UTF8);
			Assert.AreEqual ("mono.bmp;Bitmap;utf-8", (string) _converter.ConvertTo (
				r, typeof (string)), "#2");

			r = new ResXFileRef ("mono.bmp", "Bitmap", (Encoding) null);
			Assert.AreEqual ("mono.bmp;Bitmap", (string) _converter.ConvertTo (
				r, typeof (string)), "#3");
		}

		private TypeConverter _converter;
		private string _tempDirectory;
		private string _tempFileUTF7;
	}
}