nunit20/core/TestCaseBuilder.cs

   1 #region Copyright (c) 2002-2003, James W. Newkirk, Michael C. Two, Alexei A. Vorontsov, Charlie Poole, Philip A. Craig
   2 /************************************************************************************
   3 '
   4 ' Copyright © 2002-2003 James W. Newkirk, Michael C. Two, Alexei A. Vorontsov, Charlie Poole
   5 ' Copyright © 2000-2003 Philip A. Craig
   6 '
   7 ' This software is provided 'as-is', without any express or implied warranty. In no
   8 ' event will the authors be held liable for any damages arising from the use of this
   9 ' software.
  10 '
  11 ' Permission is granted to anyone to use this software for any purpose, including
  12 ' commercial applications, and to alter it and redistribute it freely, subject to the
  13 ' following restrictions:
  14 '
  15 ' 1. The origin of this software must not be misrepresented; you must not claim that
  16 ' you wrote the original software. If you use this software in a product, an
  17 ' acknowledgment (see the following) in the product documentation is required.
  18 '
  19 ' Portions Copyright © 2003 James W. Newkirk, Michael C. Two, Alexei A. Vorontsov, Charlie Poole
  20 ' or Copyright © 2000-2003 Philip A. Craig
  21 '
  22 ' 2. Altered source versions must be plainly marked as such, and must not be
  23 ' misrepresented as being the original software.
  24 '
  25 ' 3. This notice may not be removed or altered from any source distribution.
  26 '
  27 '***********************************************************************************/
  28 #endregion
  29
  30 namespace NUnit.Core
  31 {
  32         using System;
  33         using System.Reflection;
  34         using System.Collections;
  35
  36         /// <summary>
  37         /// Summary description for TestCaseBuilder.
  38         /// </summary>
  39         public class TestCaseBuilder
  40         {
  41                 private static Hashtable builders;
  42                 private static ITestBuilder normalBuilder = new NormalBuilder();
  43
  44                 private static void InitBuilders()
  45                 {
  46                         builders = new Hashtable();
  47                         builders[typeof(NUnit.Framework.ExpectedExceptionAttribute)] = new ExpectedExceptionBuilder();
  48                 }
  49
  50                 private static ITestBuilder GetBuilder(MethodInfo method)
  51                 {
  52                         if (builders == null)
  53                                 InitBuilders();
  54
  55                         object[] attributes = method.GetCustomAttributes(false);
  56
  57                         foreach (object attribute in attributes)
  58                         {
  59                                 ITestBuilder builder = (ITestBuilder) builders[attribute.GetType()];
  60                                 if (builder != null)
  61                                         return builder;
  62                         }
  63
  64                         return normalBuilder;
  65                 }
  66
  67                 /// <summary>
  68                 /// Make a test case from a given fixture type and method
  69                 /// </summary>
  70                 /// <param name="fixtureType">The fixture type</param>
  71                 /// <param name="method">MethodInfo for the particular method</param>
  72                 /// <returns>A test case or null</returns>
  73                 public static TestCase Make(Type fixtureType, MethodInfo method)
  74                 {
  75                         TestCase testCase = null;
  76
  77                         if( Reflect.HasTestAttribute(method) || Reflect.IsObsoleteTestMethod( method ) )
  78                         {
  79                                 if( Reflect.IsTestMethodSignatureCorrect( method ) )
  80                                 {
  81                                         ITestBuilder builder = GetBuilder(method);
  82                                         testCase = builder.Make(fixtureType, method);
  83
  84                                         if(Reflect.HasIgnoreAttribute(method))
  85                                         {
  86                                                 testCase.ShouldRun = false;
  87                                                 testCase.IgnoreReason = Reflect.GetIgnoreReason(method);
  88                                         }
  89
  90                                         if (Reflect.HasCategoryAttribute(method))
  91                                         {
  92                                                 IList categories = Reflect.GetCategories(method);
  93                                                 CategoryManager.Add(categories);
  94                                                 testCase.Categories = categories;
  95                                         }
  96
  97                                         testCase.IsExplicit = Reflect.HasExplicitAttribute(method);
  98
  99                                         testCase.Description = Reflect.GetDescription(method);
 100                                 }
 101                                 else
 102                                 {
 103                                         testCase = new NotRunnableTestCase(method);
 104                                 }
 105                         }
 106
 107                         return testCase;
 108                 }
 109
 110                 #region Make Test Cases with pre-created fixtures
 111
 112                 // TODO: These methods are only used by our tests, since we no longer
 113                 // create the fixture in advance. They should be phased out.
 114
 115                 public static TestCase Make(object fixture, MethodInfo method)
 116                 {
 117                         TestCase testCase = Make( fixture.GetType(), method );
 118                         testCase.Fixture = fixture;
 119
 120                         return testCase;
 121                 }
 122
 123                 public static TestCase Make(object fixture, string methodName)
 124                 {
 125                         MethodInfo method = Reflect.GetMethod( fixture.GetType(), methodName );
 126                         if ( method != null )
 127                                 return Make(fixture, method);
 128
 129                         return null;
 130                 }
 131
 132                 #endregion
 133         }
 134
 135         internal interface ITestBuilder
 136         {
 137                 TestCase Make(Type fixtureType, MethodInfo method);
 138                 TestCase Make(object fixture, MethodInfo method);
 139         }
 140
 141         internal class ExpectedExceptionBuilder : ITestBuilder
 142         {
 143                 #region ITestBuilder Members
 144
 145                 public TestCase Make(Type fixtureType, MethodInfo method)
 146                 {
 147                         return new ExpectedExceptionTestCase( fixtureType, method );
 148                 }
 149
 150                 public TestCase Make(object fixture, MethodInfo method)
 151                 {
 152                         return new ExpectedExceptionTestCase( fixture, method );
 153                 }
 154
 155                 #endregion
 156         }
 157
 158         internal class NormalBuilder : ITestBuilder
 159         {
 160                 #region ITestBuilder Members
 161
 162                 public TestCase Make(Type fixtureType, MethodInfo method)
 163                 {
 164                         return new NormalTestCase(fixtureType, method);
 165                 }
 166
 167                 public TestCase Make(object fixture, MethodInfo method)
 168                 {
 169                         return new NormalTestCase(fixture, method);
 170                 }
 171
 172                 #endregion
 173         }
 174
 175
 176 }
 177