mcs/nunit24/NUnitFixtures/fixtures/SnippetRunner.cs

   1 // ****************************************************************\r
   2 // Copyright 2007, Charlie Poole\r
   3 // This is free software licensed under the NUnit license. You may\r
   4 // obtain a copy of the license at http://nunit.org/?p=license&r=2.4\r
   5 // ****************************************************************\r
   6 \r
   7 using System;\r
   8 using System.Text;\r
   9 using System.Reflection;\r
  10 using System.Collections;\r
  11 using System.CodeDom.Compiler;\r
  12 using NUnit.Core;\r
  13 using NUnit.Util;\r
  14 \r
  15 namespace NUnit.Fixtures\r
  16 {\r
  17         /// <summary>\r
  18         /// Abstract base class for fixtures that compile a snippet of code.\r
  19         /// The fixture is basically a column fixture with one input column\r
  20         /// dedicated to containing the code that is to be compiled. This\r
  21         /// will normally be the first column\r
  22         /// </summary>\r
  23         public class SnippetRunner : TestLoadFixture\r
  24         {\r
  25                 public string Code;\r
  26 \r
  27                 private static readonly string testAssembly = "test.dll";\r
  28 \r
  29                 // Override doCell to handle the 'Code' column. We compile\r
  30                 // the code and optionally load and run the tests.\r
  31                 public override void doCell(fit.Parse cell, int columnNumber)\r
  32                 {\r
  33                         base.doCell (cell, columnNumber);\r
  34 \r
  35                         FieldInfo field = columnBindings[columnNumber].field;\r
  36                         if ( field != null && field.Name == "Code" && CompileCodeSnippet( cell, Code ) )\r
  37                                 LoadAndRunTestAssembly( cell, testAssembly );\r
  38                 }\r
  39 \r
  40                 private bool CompileCodeSnippet( fit.Parse cell, string code )\r
  41                 {\r
  42                         TestCompiler compiler = new TestCompiler( \r
  43                                 new string[] { "system.dll", "nunit.framework.dll" }, \r
  44                                 testAssembly );\r
  45 \r
  46                         CompilerResults results = compiler.CompileCode( code );\r
  47                         if ( results.NativeCompilerReturnValue == 0 )\r
  48                                 return true;\r
  49 \r
  50                         cell.addToBody( "<font size=-1 color=\"#c08080\"><i>Compiler errors</i></font>" );\r
  51 \r
  52                         wrong( cell );\r
  53                         cell.addToBody( "<hr>" );\r
  54                                 \r
  55                         foreach( string line in results.Output )\r
  56                                 cell.addToBody( line + "<br>" );\r
  57 \r
  58                         return true;\r
  59                 }\r
  60 \r
  61                 public TestTree Tree()\r
  62                 {\r
  63                         if ( testRunner.Test == null )\r
  64                                 return new TestTree( "NULL" );\r
  65 \r
  66                         if ( testRunner.Test.Tests.Count == 0 )\r
  67                                 return new TestTree( "EMPTY" );\r
  68 \r
  69                         StringBuilder sb = new StringBuilder();\r
  70                         AppendTests( sb, "", testRunner.Test.Tests );\r
  71 \r
  72                         return new TestTree( sb.ToString() );\r
  73                 }\r
  74 \r
  75                 private void AppendTests( StringBuilder sb, string prefix, IList tests )\r
  76                 {\r
  77                         foreach( TestNode test in tests )\r
  78                         {\r
  79                                 sb.Append( prefix );\r
  80                                 sb.Append( test.TestName.Name );\r
  81                                 sb.Append( Environment.NewLine );\r
  82                                 if ( test.Tests != null )\r
  83                                         AppendTests( sb, prefix + ">", test.Tests );\r
  84                         }\r
  85                 }\r
  86         }\r
  87 }\r