// ****************************************************************

// This is free software licensed under the NUnit license. You

// may obtain a copy of the license as well as information regarding

// copyright ownership at http://nunit.org.

// ****************************************************************



using System;

using System.Reflection;



namespace NUnit.Core

{

	/// <summary>

	/// TestFixtureBuilder contains static methods for building

	/// TestFixtures from types. It uses builtin SuiteBuilders

	/// and any installed extensions to do it.

	/// </summary>

	public class TestFixtureBuilder

	{

		public static bool CanBuildFrom( Type type )

		{

			return CoreExtensions.Host.SuiteBuilders.CanBuildFrom( type );

		}



		/// <summary>

		/// Build a test fixture from a given type.

		/// </summary>

		/// <param name="type">The type to be used for the fixture</param>

		/// <returns>A TestSuite if the fixture can be built, null if not</returns>

		public static Test BuildFrom( Type type )

		{

			Test suite = CoreExtensions.Host.SuiteBuilders.BuildFrom( type );



			if ( suite != null )

				suite = CoreExtensions.Host.TestDecorators.Decorate( suite, type );



			return suite;

		}



		/// <summary>

		/// Build a fixture from an object. 

		/// </summary>

		/// <param name="fixture">The object to be used for the fixture</param>

		/// <returns>A TestSuite if fixture type can be built, null if not</returns>

		public static Test BuildFrom( object fixture )

		{

			Test suite = BuildFrom( fixture.GetType() );

			

			if( suite != null)

			{

				suite.Fixture = fixture;

				

				// TODO: Integrate building from an object as part of NUnitTestFixtureBuilder

				if (suite.RunState == RunState.NotRunnable &&

					Reflect.GetConstructor(fixture.GetType()) == null)

				{

					suite.RunState = RunState.Runnable;

					suite.IgnoreReason = null;

				}

			}

			

			return suite;

		}



		/// <summary>

		/// Private constructor to prevent instantiation

		/// </summary>

		private TestFixtureBuilder() { }

	}

}