InversionOfControl/Castle.MicroKernel.Tests/RuntimeParametersTestCase.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.MicroKernel.Tests
  16 {
  17         using System.Collections;
  18         using Castle.MicroKernel.Handlers;
  19         using Castle.MicroKernel.Tests.RuntimeParameters;
  20         using NUnit.Framework;
  21
  22         [TestFixture]
  23         public class RuntimeParametersTestCase
  24         {
  25                 private IKernel kernel;
  26                 private Hashtable deps;
  27
  28                 [SetUp]
  29                 public void Init()
  30                 {
  31                         kernel = new DefaultKernel();
  32                         kernel.AddComponent("compa", typeof(CompA));
  33                         kernel.AddComponent("compb", typeof(CompB));
  34
  35                         deps = new Hashtable();
  36                         deps.Add("cc", new CompC(12));
  37                         deps.Add("myArgument", "ernst");
  38                 }
  39
  40                 [TearDown]
  41                 public void Dispose()
  42                 {
  43                         kernel.Dispose();
  44                 }
  45
  46                 [Test]
  47                 [ExpectedException(typeof(HandlerException), "Can't create component 'compb' as it has " +
  48                                                              "dependencies to be satisfied. \r\ncompb is waiting for the following dependencies: \r\n\r\n" +
  49                                                              "Services: \r\n- Castle.MicroKernel.Tests.RuntimeParameters.CompC which was not registered. \r\n"
  50                         )]
  51                 public void WithoutParameters()
  52                 {
  53                         CompB compb = kernel[typeof(CompB)] as CompB;
  54                 }
  55
  56                 [Test]
  57                 public void WillAlwaysResolveCustomParameterFromServiceComponent()
  58                 {
  59                         kernel.AddComponent("compc", typeof(CompC));
  60                         Hashtable c_dependencies = new Hashtable();
  61                         c_dependencies["test"] = 15;
  62                         kernel.RegisterCustomDependencies(typeof(CompC), c_dependencies);
  63                         Hashtable b_dependencies = new Hashtable();
  64                         b_dependencies["myArgument"] = "foo";
  65                         kernel.RegisterCustomDependencies(typeof(CompB), b_dependencies);
  66                         CompB b = kernel["compb"] as CompB;
  67                         Assert.IsNotNull(b);
  68                         Assert.AreEqual(15, b.Compc.test);
  69                 }
  70
  71                 [Test]
  72                 public void ResolveUsingParameters()
  73                 {
  74                         CompB compb = kernel.Resolve(typeof(CompB), deps) as CompB;
  75
  76                         AssertDependencies(compb);
  77                 }
  78
  79                 [Test]
  80                 public void ResolveUsingParametersWithinTheHandler()
  81                 {
  82                         kernel.RegisterCustomDependencies("compb", deps);
  83                         CompB compb = kernel[typeof(CompB)] as CompB;
  84
  85                         AssertDependencies(compb);
  86                 }
  87
  88                 [Test]
  89                 public void ParametersPrecedence()
  90                 {
  91                         kernel.RegisterCustomDependencies("compb", deps);
  92
  93                         CompB instance_with_model = (CompB) kernel[typeof(CompB)];
  94                         Assert.AreSame(deps["cc"], instance_with_model.Compc, "Model dependency should override kernel dependency");
  95
  96                         Hashtable deps2 = new Hashtable();
  97                         deps2.Add("cc", new CompC(12));
  98                         deps2.Add("myArgument", "ayende");
  99
 100                         CompB instance_with_args = (CompB) kernel.Resolve(typeof(CompB), deps2);
 101
 102                         Assert.AreSame(deps2["cc"], instance_with_args.Compc, "Should get it from resolve params");
 103                         Assert.AreEqual("ayende", instance_with_args.MyArgument);
 104                 }
 105
 106                 [Test]
 107                 public void AddingDependencyToServiceWithCustomDependency()
 108                 {
 109                         DefaultKernel k = new DefaultKernel();
 110                         k.AddComponent("NeedClassWithCustomerDependency",typeof(NeedClassWithCustomerDependency));
 111                         k.AddComponent("HasCustomDependency", typeof(HasCustomDependency));
 112
 113                         Assert.AreEqual(HandlerState.WaitingDependency, k.GetHandler("HasCustomDependency").CurrentState);
 114
 115                         Hashtable hash = new Hashtable();
 116                         hash["name"] = new CompA();
 117                         k.RegisterCustomDependencies("HasCustomDependency", hash);
 118                         Assert.AreEqual(HandlerState.Valid, k.GetHandler("HasCustomDependency").CurrentState);
 119
 120                         Assert.IsNotNull(k.Resolve(typeof(NeedClassWithCustomerDependency)));
 121                 }
 122
 123                 private void AssertDependencies(CompB compb)
 124                 {
 125                         Assert.IsNotNull(compb, "Component B should have been resolved");
 126
 127                         Assert.IsNotNull(compb.Compc, "CompC property should not be null");
 128                         Assert.IsTrue(compb.MyArgument != string.Empty, "MyArgument property should not be empty");
 129
 130                         Assert.AreSame(deps["cc"], compb.Compc, "CompC property should be the same instnace as in the hashtable argument");
 131                         Assert.IsTrue("ernst".Equals(compb.MyArgument),
 132                                       string.Format("The MyArgument property of compb should be equal to ernst, found {0}", compb.MyArgument));
 133                 }
 134         }
 135 }