mcs/class/corlib/Test/System/AggregateExceptionTests.cs

   1 // AggregateExceptionTests.cs
   2 //
   3 // Copyright (c) 2008 Jérémie "Garuma" Laval
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining a copy
   6 // of this software and associated documentation files (the "Software"), to deal
   7 // in the Software without restriction, including without limitation the rights
   8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 // copies of the Software, and to permit persons to whom the Software is
  10 // furnished to do so, subject to the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be included in
  13 // all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21 // THE SOFTWARE.
  22 //
  23 //
  24
  25 #if NET_4_0
  26
  27 using System;
  28 using System.Linq;
  29 using System.Threading;
  30 using System.Collections.Generic;
  31
  32 using NUnit;
  33 using NUnit.Framework;
  34
  35 namespace MonoTests.System
  36 {
  37         [TestFixture()]
  38         public class AggregateExceptionTest
  39         {
  40                 AggregateException e;
  41
  42                 [SetUpAttribute]
  43                 public void Setup()
  44                 {
  45                         e = new AggregateException(new Exception("foo"), new AggregateException(new Exception("bar"), new Exception("foobar")));
  46                 }
  47
  48                 [Test]
  49                 public void SimpleInnerExceptionTestCase ()
  50                 {
  51                         var message = "Foo";
  52                         var inner = new ApplicationException (message);
  53                         var ex = new AggregateException (inner);
  54
  55                         Assert.IsNotNull (ex.InnerException);
  56                         Assert.IsNotNull (ex.InnerExceptions);
  57
  58                         Assert.AreEqual (inner, ex.InnerException);
  59                         Assert.AreEqual (1, ex.InnerExceptions.Count);
  60                         Assert.AreEqual (inner, ex.InnerExceptions[0]);
  61                         Assert.AreEqual (message, ex.InnerException.Message);
  62                         Assert.AreEqual (inner, ex.GetBaseException ());
  63                 }
  64
  65                 [TestAttribute]
  66                 public void FlattenTestCase()
  67                 {
  68                         AggregateException ex = e.Flatten();
  69
  70                         Assert.AreEqual(3, ex.InnerExceptions.Count, "#1");
  71                         Assert.AreEqual(3, ex.InnerExceptions.Where((exception) => !(exception is AggregateException)).Count(), "#2");
  72                 }
  73
  74                 [Test, ExpectedException (typeof (ArgumentException))]
  75                 public void InitializationWithNullInnerValuesTest ()
  76                 {
  77                         var foo = new AggregateException (new Exception[] { new Exception (), null, new ApplicationException ()});
  78                 }
  79
  80                 [Test]
  81                 public void InitializationWithNullValuesTest ()
  82                 {
  83                         Throws (typeof (ArgumentNullException), () => new AggregateException ((IEnumerable<Exception>)null));
  84                         Throws (typeof (ArgumentNullException), () => new AggregateException ((Exception[])null));
  85                 }
  86
  87                 [Test]
  88                 [ExpectedException (typeof (ArgumentNullException))]
  89                 public void Handle_Invalid ()
  90                 {
  91                         e.Handle (null);
  92                 }
  93
  94                 [Test]
  95                 public void Handle_AllHandled ()
  96                 {
  97                         e.Handle (l => true);
  98                 }
  99
 100                 [Test]
 101                 public void Handle_Unhandled ()
 102                 {
 103                         try {
 104                                 e.Handle (l => l is AggregateException);
 105                                 Assert.Fail ();
 106                         } catch (AggregateException e) {
 107                                 Assert.AreEqual (1, e.InnerExceptions.Count);
 108                         }
 109                 }
 110
 111                 [Test]
 112                 public void GetBaseWithInner ()
 113                 {
 114                         var ae = new AggregateException ("x", new [] { new ArgumentException (), new ArgumentNullException () });
 115                         Assert.AreEqual (ae, ae.GetBaseException (), "#1");
 116
 117                         var expected = new ArgumentException ();
 118                         var ae2 = new AggregateException ("x", new AggregateException (expected, new Exception ()));
 119                         Assert.AreEqual (expected, ae2.GetBaseException ().InnerException, "#2");
 120                 }
 121
 122                 static void Throws (Type t, Action action)
 123                 {
 124                         Exception e = null;
 125                         try {
 126                                 action ();
 127                         } catch (Exception ex) {
 128                                 e = ex;
 129                         }
 130
 131                         if (e == null || e.GetType () != t)
 132                                 Assert.Fail ();
 133                 }
 134         }
 135 }
 136 #endif