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
  26 using System;
  27 using System.Linq;
  28 using System.Threading;
  29 using System.Collections.Generic;
  30
  31 using NUnit;
  32 using NUnit.Framework;
  33
  34 namespace MonoTests.System
  35 {
  36         [TestFixture]
  37         public class AggregateExceptionTest
  38         {
  39                 AggregateException e;
  40
  41                 [SetUpAttribute]
  42                 public void Setup()
  43                 {
  44                         e = new AggregateException(new Exception("foo"), new AggregateException(new Exception("bar"), new Exception("foobar")));
  45                 }
  46
  47                 [Test]
  48                 public void SimpleInnerExceptionTestCase ()
  49                 {
  50                         var message = "Foo";
  51                         var inner = new ApplicationException (message);
  52                         var ex = new AggregateException (inner);
  53
  54                         Assert.IsNotNull (ex.InnerException);
  55                         Assert.IsNotNull (ex.InnerExceptions);
  56
  57                         Assert.AreEqual (inner, ex.InnerException);
  58                         Assert.AreEqual (1, ex.InnerExceptions.Count);
  59                         Assert.AreEqual (inner, ex.InnerExceptions[0]);
  60                         Assert.AreEqual (message, ex.InnerException.Message);
  61                         Assert.AreEqual (inner, ex.GetBaseException ());
  62                 }
  63
  64                 [TestAttribute]
  65                 public void FlattenTestCase()
  66                 {
  67                         AggregateException ex = e.Flatten();
  68
  69                         Assert.AreEqual(3, ex.InnerExceptions.Count, "#1");
  70                         Assert.AreEqual(3, ex.InnerExceptions.Where((exception) => !(exception is AggregateException)).Count(), "#2");
  71                 }
  72
  73                 [Test, ExpectedException (typeof (ArgumentException))]
  74                 public void InitializationWithNullInnerValuesTest ()
  75                 {
  76                         var foo = new AggregateException (new Exception[] { new Exception (), null, new ApplicationException ()});
  77                 }
  78
  79                 [Test]
  80                 public void InitializationWithNullValuesTest ()
  81                 {
  82                         Throws (typeof (ArgumentNullException), () => new AggregateException ((IEnumerable<Exception>)null));
  83                         Throws (typeof (ArgumentNullException), () => new AggregateException ((Exception[])null));
  84                 }
  85
  86                 [Test]
  87                 [ExpectedException (typeof (ArgumentNullException))]
  88                 public void Handle_Invalid ()
  89                 {
  90                         e.Handle (null);
  91                 }
  92
  93                 [Test]
  94                 public void Handle_AllHandled ()
  95                 {
  96                         e.Handle (l => true);
  97                 }
  98
  99                 [Test]
 100                 public void Handle_Unhandled ()
 101                 {
 102                         try {
 103                                 e.Handle (l => l is AggregateException);
 104                                 Assert.Fail ();
 105                         } catch (AggregateException e) {
 106                                 Assert.AreEqual (1, e.InnerExceptions.Count);
 107                         }
 108                 }
 109
 110                 [Test]
 111                 public void GetBaseWithInner ()
 112                 {
 113                         var ae = new AggregateException ("x", new [] { new ArgumentException (), new ArgumentNullException () });
 114                         Assert.AreEqual (ae, ae.GetBaseException (), "#1");
 115
 116                         var expected = new ArgumentException ();
 117                         var ae2 = new AggregateException ("x", new AggregateException (expected, new Exception ()));
 118                         Assert.AreEqual (expected, ae2.GetBaseException ().InnerException, "#2");
 119                 }
 120
 121                 [Test]
 122                 public void GetBaseException_stops_at_first_inner_exception_that_is_not_AggregateException()
 123                 {
 124                         var inner = new ArgumentNullException ();
 125                         var outer = new InvalidOperationException ("x", inner);
 126                         Assert.AreEqual (outer, new AggregateException (outer).GetBaseException ());
 127                 }
 128
 129                 static void Throws (Type t, Action action)
 130                 {
 131                         Exception e = null;
 132                         try {
 133                                 action ();
 134                         } catch (Exception ex) {
 135                                 e = ex;
 136                         }
 137
 138                         if (e == null || e.GetType () != t)
 139                                 Assert.Fail ();
 140                 }
 141         }
 142 }