/src/NUnit/core/TestFixtureBuilder.cs

 1// ****************************************************************
 2// This is free software licensed under the NUnit license. You
 3// may obtain a copy of the license as well as information regarding
 4// copyright ownership at http://nunit.org.
 5// ****************************************************************
 6
 7using System;
 8using System.Reflection;
 9
10namespace NUnit.Core
11{
12	/// <summary>
13	/// TestFixtureBuilder contains static methods for building
14	/// TestFixtures from types. It uses builtin SuiteBuilders
15	/// and any installed extensions to do it.
16	/// </summary>
17	public class TestFixtureBuilder
18	{
19		public static bool CanBuildFrom( Type type )
20		{
21			return CoreExtensions.Host.SuiteBuilders.CanBuildFrom( type );
22		}
23
24		/// <summary>
25		/// Build a test fixture from a given type.
26		/// </summary>
27		/// <param name="type">The type to be used for the fixture</param>
28		/// <returns>A TestSuite if the fixture can be built, null if not</returns>
29		public static Test BuildFrom( Type type )
30		{
31			Test suite = CoreExtensions.Host.SuiteBuilders.BuildFrom( type );
32
33			if ( suite != null )
34				suite = CoreExtensions.Host.TestDecorators.Decorate( suite, type );
35
36			return suite;
37		}
38
39		/// <summary>
40		/// Build a fixture from an object. 
41		/// </summary>
42		/// <param name="fixture">The object to be used for the fixture</param>
43		/// <returns>A TestSuite if fixture type can be built, null if not</returns>
44		public static Test BuildFrom( object fixture )
45		{
46			Test suite = BuildFrom( fixture.GetType() );
47			
48			if( suite != null)
49			{
50				suite.Fixture = fixture;
51				
52				// TODO: Integrate building from an object as part of NUnitTestFixtureBuilder
53				if (suite.RunState == RunState.NotRunnable &&
54					Reflect.GetConstructor(fixture.GetType()) == null)
55				{
56					suite.RunState = RunState.Runnable;
57					suite.IgnoreReason = null;
58				}
59			}
60			
61			return suite;
62		}
63
64		/// <summary>
65		/// Private constructor to prevent instantiation
66		/// </summary>
67		private TestFixtureBuilder() { }
68	}
69}