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CastleTest.cs
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90 lines (78 loc) · 2.38 KB
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namespace GitHubAPI.Tests
{
using NUnit.Framework;
using System;
using System.Reflection;
using Castle.DynamicProxy;
using FluentAssertions;
public abstract class AbstractBaseClass
{
public virtual string MethodA()
{
return "Method A";
}
protected virtual string MethodB()
{
return "Method B";
}
}
public class SomeClass : AbstractBaseClass
{
public virtual string MethodC()
{
return "Method C";
}
}
public static class MyInterceptor<TTarget>
where TTarget : AbstractBaseClass
{
private static readonly ProxyGenerator ProxyGenerator = new ProxyGenerator();
public static TTarget Create(TTarget target, string message)
{
return ProxyGenerator.CreateClassProxyWithTarget(target,
new ProxyGenerationOptions(
new ProxyGenerationHook()),
new Interceptor(message));
}
private class Interceptor : IInterceptor
{
private readonly string _message;
public Interceptor(string message)
{
_message = message;
}
public void Intercept(IInvocation invocation)
{
invocation.Proceed();
var currentString = (string)invocation.ReturnValue;
currentString = _message;
invocation.ReturnValue = currentString;
}
}
}
public class ProxyGenerationHook : IProxyGenerationHook
{
public bool ShouldInterceptMethod(Type type, MethodInfo methodInfo)
{
return true;
}
public void NonProxyableMemberNotification(Type type, MemberInfo memberInfo)
{
}
public void MethodsInspected()
{
}
}
[TestFixture]
public class CastleTests
{
[Test]
public void Should_Intercept_MethodA()
{
var someClass = new SomeClass();
var proxy = MyInterceptor<AbstractBaseClass>.Create(someClass, "Intercepted!");
var text = proxy.MethodA();
text.Should().Be("Intercepted!");
}
}
}