InversionOfControl/Castle.Windsor.Tests/CircularDependencyTests.cs

   1 // Copyright 2004-2007 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.Windsor.Tests
  16 {
  17         using System;
  18         using Castle.MicroKernel.Exceptions;
  19         using Castle.MicroKernel.Handlers;
  20         using Castle.Windsor.Tests.Components;
  21         using NUnit.Framework;
  22
  23         [TestFixture]
  24         public class CircularDependencyTests
  25         {
  26                 [Test]
  27                 public void ThrowsACircularDependencyException()
  28                 {
  29                         IWindsorContainer container = new WindsorContainer();
  30                         container.AddComponent("controller", typeof(IController), typeof(Controller));
  31                         container.AddComponent("view", typeof(IView), typeof(View));
  32                         try
  33                         {
  34                                 container.Resolve("controller");
  35
  36                                 throw new Exception(
  37                                         @"A cycle was detected when trying to resolve a dependency. The dependency graph that resulted in a cycle is:
  38  - Service dependency 'view' type 'Castle.Windsor.Tests.Components.IView' for Void .ctor(Castle.Windsor.Tests.Components.IView) in type Castle.Windsor.Tests.Components.Controller
  39  - Service dependency 'Controller' type 'Castle.Windsor.Tests.Components.IController' for Castle.Windsor.Tests.Components.IController Controller in type Castle.Windsor.Tests.Components.View
  40  + Service dependency 'view' type 'Castle.Windsor.Tests.Components.IView' for Void .ctor(Castle.Windsor.Tests.Components.IView) in Castle.Windsor.Tests.Components.Controller
  41 "
  42                                         );
  43                         }
  44                         catch(CircularDependencyException)
  45                         {
  46                         }
  47                 }
  48
  49                 [Test]
  50                 [
  51                         ExpectedException(typeof(HandlerException),
  52                                 @"Can't create component 'compA' as it has dependencies to be satisfied.
  53 compA is waiting for the following dependencies:
  54
  55 Services:
  56 - Castle.Windsor.Tests.Components.CompB which was registered but is also waiting for dependencies.
  57
  58 compB is waiting for the following dependencies:
  59
  60 Services:
  61 - Castle.Windsor.Tests.Components.CompC which was registered but is also waiting for dependencies.
  62
  63 compC is waiting for the following dependencies:
  64
  65 Services:
  66 - Castle.Windsor.Tests.Components.CompD which was registered but is also waiting for dependencies.
  67
  68 compD is waiting for the following dependencies:
  69
  70 Services:
  71 - Castle.Windsor.Tests.Components.CompA which was registered but is also waiting for dependencies.
  72 "
  73                                 )]
  74                 public void ThrowsACircularDependencyException2()
  75                 {
  76                         IWindsorContainer container = new WindsorContainer();
  77                         container.AddComponent("compA", typeof(CompA));
  78                         container.AddComponent("compB", typeof(CompB));
  79                         container.AddComponent("compC", typeof(CompC));
  80                         container.AddComponent("compD", typeof(CompD));
  81
  82                         container.Resolve("compA");
  83                 }
  84
  85                 [Test]
  86                 public void ShouldNotGetCircularDepencyExceptionWhenResolvingTypeOnItselfWithDifferentModels()
  87                 {
  88                         WindsorContainer container = new WindsorContainer(ConfigHelper.ResolveConfigPath("IOC-51.xml"));
  89                         object o = container["path.fileFinder"];
  90                         Assert.IsNotNull(o);
  91                 }
  92         }
  93
  94         namespace IOC51
  95         {
  96                 using System.Reflection;
  97
  98                 public interface IPathProvider
  99                 {
 100                         string Path { get; }
 101                 }
 102
 103                 public class AssemblyPath : IPathProvider
 104                 {
 105                         public string Path
 106                         {
 107                                 get
 108                                 {
 109                                         Uri uriPath = new Uri(Assembly.GetExecutingAssembly().GetName(false).CodeBase);
 110                                         return uriPath.LocalPath;
 111                                 }
 112                         }
 113                 }
 114
 115                 public class RelativeFilePath : IPathProvider
 116                 {
 117                         public RelativeFilePath(IPathProvider basePathProvider, string extensionsPath)
 118                         {
 119                                 _path = System.IO.Path.Combine(basePathProvider.Path + "\\", extensionsPath);
 120                         }
 121
 122                         public string Path
 123                         {
 124                                 get { return _path; }
 125                         }
 126
 127                         private string _path;
 128                 }
 129         }
 130 }