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\r\n" +
  50                                                                                                          "Keys (components with specific keys)\r\n- myArgument which was not registered. \r\n"
  51                         )]
  52                 public void WithoutParameters()
  53                 {
  54                         CompB compb = kernel[typeof(CompB)] as CompB;
  55                 }
  56
  57                 [Test]
  58                 public void WillAlwaysResolveCustomParameterFromServiceComponent()
  59                 {
  60                         kernel.AddComponent("compc", typeof(CompC));
  61                         Hashtable c_dependencies = new Hashtable();
  62                         c_dependencies["test"] = 15;
  63                         kernel.RegisterCustomDependencies(typeof(CompC), c_dependencies);
  64                         Hashtable b_dependencies = new Hashtable();
  65                         b_dependencies["myArgument"] = "foo";
  66                         kernel.RegisterCustomDependencies(typeof(CompB), b_dependencies);
  67                         CompB b = kernel["compb"] as CompB;
  68                         Assert.IsNotNull(b);
  69                         Assert.AreEqual(15, b.Compc.test);
  70                 }
  71
  72                 [Test]
  73                 public void ResolveUsingParameters()
  74                 {
  75                         CompB compb = kernel.Resolve(typeof(CompB), deps) as CompB;
  76
  77                         AssertDependencies(compb);
  78                 }
  79
  80                 [Test]
  81                 public void ResolveUsingParametersWithinTheHandler()
  82                 {
  83                         kernel.RegisterCustomDependencies("compb", deps);
  84                         CompB compb = kernel[typeof(CompB)] as CompB;
  85
  86                         AssertDependencies(compb);
  87                 }
  88
  89                 [Test]
  90                 public void ParametersPrecedence()
  91                 {
  92                         kernel.RegisterCustomDependencies("compb", deps);
  93
  94                         CompB instance_with_model = (CompB) kernel[typeof(CompB)];
  95                         Assert.AreSame(deps["cc"], instance_with_model.Compc, "Model dependency should override kernel dependency");
  96
  97                         Hashtable deps2 = new Hashtable();
  98                         deps2.Add("cc", new CompC(12));
  99                         deps2.Add("myArgument", "ayende");
 100
 101                         CompB instance_with_args = (CompB) kernel.Resolve(typeof(CompB), deps2);
 102
 103                         Assert.AreSame(deps2["cc"], instance_with_args.Compc, "Should get it from resolve params");
 104                         Assert.AreEqual("ayende", instance_with_args.MyArgument);
 105                 }
 106
 107                 [Test]
 108                 public void AddingDependencyToServiceWithCustomDependency()
 109                 {
 110                         DefaultKernel k = new DefaultKernel();
 111                         k.AddComponent("NeedClassWithCustomerDependency",typeof(NeedClassWithCustomerDependency));
 112                         k.AddComponent("HasCustomDependency", typeof(HasCustomDependency));
 113
 114                         Assert.AreEqual(HandlerState.WaitingDependency, k.GetHandler("HasCustomDependency").CurrentState);
 115
 116                         Hashtable hash = new Hashtable();
 117                         hash["name"] = new CompA();
 118                         k.RegisterCustomDependencies("HasCustomDependency", hash);
 119                         Assert.AreEqual(HandlerState.Valid, k.GetHandler("HasCustomDependency").CurrentState);
 120
 121                         Assert.IsNotNull(k.Resolve(typeof(NeedClassWithCustomerDependency)));
 122                 }
 123
 124                 private void AssertDependencies(CompB compb)
 125                 {
 126                         Assert.IsNotNull(compb, "Component B should have been resolved");
 127
 128                         Assert.IsNotNull(compb.Compc, "CompC property should not be null");
 129                         Assert.IsTrue(compb.MyArgument != string.Empty, "MyArgument property should not be empty");
 130
 131                         Assert.AreSame(deps["cc"], compb.Compc, "CompC property should be the same instnace as in the hashtable argument");
 132                         Assert.IsTrue("ernst".Equals(compb.MyArgument),
 133                                       string.Format("The MyArgument property of compb should be equal to ernst, found {0}", compb.MyArgument));
 134                 }
 135         }
 136 }