File: PrintingServicesUnixTest.cs

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//
// PrintingServicesUnix class unit tests
//
// Authors:
//	Sebastien Pouliot  <sebastien@ximian.com>
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Printing;
using System.Runtime.InteropServices;
using NUnit.Framework;

namespace MonoTests.System.Drawing.Printing {

	[TestFixture]
	public class PrintingServicesUnixTest {

		[DllImport ("gdiplus.dll")]
		static extern Status GdipGetPostScriptSavePage (IntPtr graphics);

		[Test]
		public void BuiltInPrinting ()
		{
			// ensure libgdiplus is built with printing support enabled
			if (GDIPlus.RunningOnWindows ())
				Assert.Ignore ("Running on Windows.");

			Assert.AreEqual (Status.InvalidParameter, GdipGetPostScriptSavePage (IntPtr.Zero), "Missing printing support");
		}

		#region Novell Bug #602934

		#region CUPS methods and structs

		[StructLayout (LayoutKind.Sequential)]
		struct CUPS_DEST
		{
			public string Name;
			public string Instance;
			public int IsDefault;
			public int NumOptions;
			public IntPtr Options;
		}

		[StructLayout (LayoutKind.Sequential)]
		struct CUPS_OPTION
		{
			public string Name;
			public string Value;
		}

		readonly IntPtr CUPS_HTTP_DEFAULT = IntPtr.Zero;

		[DllImport ("libcups")]
		static extern IntPtr cupsGetNamedDest (IntPtr http, string name, string instance);

		[DllImport ("libcups")]
		static extern void cupsFreeDests (int num_dests, IntPtr dests);

		[DllImport ("libcups")]
		static extern void cupsFreeDests (int num_dests, ref CUPS_DEST dests);

		#endregion

		Dictionary<string, string> GetOptionsOfFirstPrinterThroughCups ()
		{
			var options = new Dictionary<string, string> ();

			var destPtr = cupsGetNamedDest (CUPS_HTTP_DEFAULT, PrinterSettings.InstalledPrinters [0], null);
			var dest = (CUPS_DEST)Marshal.PtrToStructure (destPtr, typeof(CUPS_DEST));
			var optionPtr = dest.Options;
			int cupsOptionSize = Marshal.SizeOf (typeof(CUPS_OPTION));
			for (int i = 0; i < dest.NumOptions; i++) {
				var cupsOption = (CUPS_OPTION)Marshal.PtrToStructure (optionPtr, typeof(CUPS_OPTION));
				options.Add (cupsOption.Name, cupsOption.Value);
				optionPtr = (IntPtr)((long)optionPtr + cupsOptionSize);
			}
			cupsFreeDests (1, destPtr);

			return options;
		}

		[Test]
		[Platform (Exclude = "Win", Reason = "Depends on CUPS which is usually not installed on Windows")]
		public void Bug602934_PrinterSettingsReturnActualValues ()
		{
			if (PrinterSettings.InstalledPrinters.Count < 1)
				Assert.Ignore ("Need at least one printer installed.");

			var options = GetOptionsOfFirstPrinterThroughCups ();

			var settings = new PrinterSettings () { PrinterName = PrinterSettings.InstalledPrinters [0] };
			Assert.AreEqual (options ["PageSize"], settings.DefaultPageSettings.PaperSize.PaperName,
				"Bug #602934 (https://bugzilla.novell.com/show_bug.cgi?id=602934) not fixed (PaperSize)");
			Assert.AreEqual (options ["Resolution"], string.Format ("{0}dpi", settings.DefaultPageSettings.PrinterResolution.X),
				"Bug #602934 (https://bugzilla.novell.com/show_bug.cgi?id=602934) not fixed (Resolution)");
		}

		#endregion

	}
}