mcs/class/corlib/Test/System.Runtime.ExceptionServices/ExceptionDispatchInfoTest.cs

   1 //
   2 // ExceptionDispatchInfoTest.cs
   3 //
   4 // Authors:
   5 //      Marek Safar  <marek.safar@gmail.com>
   6 //
   7 // Copyright (C) 2011 Xamarin, Inc (http://www.xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using NUnit.Framework;
  31 using System.Runtime.ExceptionServices;
  32 using System.Threading.Tasks;
  33 using System.Diagnostics;
  34
  35 namespace MonoTests.System.Runtime.ExceptionServices
  36 {
  37         [TestFixture]
  38         [Category ("BitcodeNotWorking")]
  39         public class ExceptionDispatchInfoTest
  40         {
  41                 [Test]
  42                 public void Capture_InvalidArguments ()
  43                 {
  44                         try {
  45                                 ExceptionDispatchInfo.Capture (null);
  46                                 Assert.Fail ();
  47                         } catch (ArgumentNullException) {
  48                         }
  49                 }
  50
  51                 [Test]
  52                 public void Capture ()
  53                 {
  54                         var e = new ApplicationException ("test");
  55                         var edi = ExceptionDispatchInfo.Capture (e);
  56                         Assert.AreEqual (e, edi.SourceException);
  57                 }
  58
  59                 [Test]
  60                 public void Throw ()
  61                 {
  62                         Exception orig = null;
  63                         var t = Task.Factory.StartNew (() => {
  64                                 try {
  65                                         throw new ApplicationException ("aaa");
  66                                 } catch (Exception e) {
  67                                         orig = e;
  68                                         return ExceptionDispatchInfo.Capture (e);
  69                                 }
  70                         });
  71
  72                         var ed = t.Result;
  73                         var orig_stack = orig.StackTrace;
  74                         try {
  75                                 ed.Throw ();
  76                                 Assert.Fail ("#0");
  77                         } catch (Exception e) {
  78                                 var s = e.StackTrace.Split ('\n');
  79                                 Assert.AreEqual (4, s.Length, "#1");
  80                                 Assert.AreEqual (orig, e, "#2");
  81                                 Assert.AreNotEqual (orig_stack, e.StackTrace, "#3");
  82                         }
  83                 }
  84
  85                 [Test]
  86                 public void ThrowWithEmptyFrames ()
  87                 {
  88                         var edi = ExceptionDispatchInfo.Capture (new OperationCanceledException ());
  89                         try {
  90                                 edi.Throw ();
  91                                 Assert.Fail ("#0");
  92                         } catch (OperationCanceledException e) {
  93                                 Assert.IsFalse (e.StackTrace.Contains ("---"));
  94                                 Assert.AreEqual (2, e.StackTrace.Split (new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries).Length);
  95                         }
  96                 }
  97
  98                 [Test]
  99                 public void LastThrowWins ()
 100                 {
 101                         Exception e;
 102                         try {
 103                                 throw new Exception ("test");
 104                         } catch (Exception e2) {
 105                                 e = e2;
 106                         }
 107
 108                         var edi = ExceptionDispatchInfo.Capture (e);
 109
 110                         try {
 111                                 edi.Throw ();
 112                         } catch {
 113                         }
 114
 115                         try {
 116                                 edi.Throw ();
 117                         } catch (Exception ex) {
 118                         }
 119
 120                         try {
 121                                 edi.Throw ();
 122                         } catch (Exception ex) {
 123                                 var split = ex.StackTrace.Split (new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
 124                                 Assert.AreEqual (4, split.Length, "#1");
 125                                 Assert.IsTrue (split [1].Contains ("---"), "#2");
 126                         }
 127                 }
 128
 129                 [Test]
 130                 public void ThrowMultipleCaptures ()
 131                 {
 132                         Exception e;
 133                         try {
 134                                 throw new Exception ("test");
 135                         } catch (Exception e2) {
 136                                 e = e2;
 137                         }
 138
 139                         var edi = ExceptionDispatchInfo.Capture (e);
 140
 141                         try {
 142                                 edi.Throw ();
 143                         } catch (Exception e3) {
 144                                 edi = ExceptionDispatchInfo.Capture (e3);
 145                         }
 146
 147                         try {
 148                                 edi.Throw ();
 149                         } catch (Exception ex) {
 150                                 var split = ex.StackTrace.Split (new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
 151                                 Assert.AreEqual (7, split.Length, "#1");
 152                                 Assert.IsTrue (split [1].Contains ("---"), "#2");
 153                                 Assert.IsTrue (split [4].Contains ("---"), "#3");
 154                         }
 155                 }
 156
 157                 [Test]
 158                 public void StackTraceUserCopy ()
 159                 {
 160                         try {
 161                                 try {
 162                                         throw new NotImplementedException ();
 163                                 } catch (Exception e) {
 164                                         var edi = ExceptionDispatchInfo.Capture (e);
 165                                         edi.Throw();
 166                                 }
 167                         } catch (Exception ex) {
 168                                 var st = new StackTrace (ex, true);
 169                                 var split = st.ToString ().Split (new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
 170                                 Assert.AreEqual (4, split.Length, "#1");
 171                                 Assert.IsTrue (split [1].Contains ("---"), "#2");
 172                         }
 173                 }
 174         }
 175 }
 176