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AccessLevelTestCase.cs
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AccessLevelTestCase.cs
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// Copyright 2004-2021 Castle Project - http://www.castleproject.org/
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
namespace Castle.DynamicProxy.Tests
{
using System;
using System.Collections.Generic;
using System.Reflection;
using Castle.DynamicProxy.Tests.Classes;
using Castle.DynamicProxy.Tests.Interceptors;
using NUnit.Framework;
[TestFixture]
public class AccessLevelTestCase : BasePEVerifyTestCase
{
[Test]
public void ProtectedConstructor()
{
NonPublicConstructorClass proxy =
generator.CreateClassProxy(
typeof(NonPublicConstructorClass), new StandardInterceptor())
as NonPublicConstructorClass;
Assert.IsNotNull(proxy);
proxy.DoSomething();
}
[Test]
public void ProtectedInternalConstructor()
{
ProtectedInternalConstructorClass proxy =
generator.CreateClassProxy(
typeof(ProtectedInternalConstructorClass), new StandardInterceptor())
as ProtectedInternalConstructorClass;
Assert.IsNotNull(proxy);
proxy.DoSomething();
}
[Test]
public void ProtectedMethods()
{
LogInvocationInterceptor logger = new LogInvocationInterceptor();
NonPublicMethodsClass proxy = (NonPublicMethodsClass)
generator.CreateClassProxy(typeof(NonPublicMethodsClass), logger);
proxy.DoSomething();
Assert.AreEqual(2, logger.Invocations.Count);
Assert.AreEqual("DoSomething", logger.Invocations[0]);
Assert.AreEqual("DoOtherThing", logger.Invocations[1]);
}
[Test]
public void InternalConstructorIsNotReplicated()
{
object proxy = generator.CreateClassProxy(typeof(Dictionary<int, object>), new StandardInterceptor());
Assert.IsNull(proxy.GetType().GetConstructor(new[] { typeof(IInterceptor[]), typeof(bool) }));
}
internal class InternalClass
{
internal InternalClass()
{
}
}
[Test]
public void InternalConstructorIsReplicatedWhenInternalsVisibleTo()
{
object proxy = generator.CreateClassProxy(typeof(InternalClass), new StandardInterceptor());
Assert.IsNotNull(proxy.GetType().GetConstructor(new[] { typeof(IInterceptor[]) }));
}
[TestCase(typeof(InternalMethodClass))]
[TestCase(typeof(PrivateProtectedMethodClass))]
[TestCase(typeof(ProtectedMethodClass))]
[TestCase(typeof(ProtectedInternalMethodClass))]
public void Methods_made_visible_by_InternalsVisibleTo_can_be_intercepted(Type methodClass)
{
var method = methodClass.GetMethod("Method", BindingFlags.NonPublic | BindingFlags.Instance);
Assume.That(ProxyUtil.IsAccessible(method)); // because this assembly makes its internals visible to DynamicProxy
var realObj = (IMethodClass)Activator.CreateInstance(methodClass);
Assert.Throws<Exception>(realObj.InvokeMethod);
var proxy = (IMethodClass)generator.CreateClassProxy(methodClass, new DoNothingInterceptor());
Assert.DoesNotThrow(proxy.InvokeMethod);
}
private interface IMethodClass
{
void InvokeMethod();
}
public class InternalMethodClass : IMethodClass
{
public void InvokeMethod() => Method();
internal virtual void Method() => throw new Exception();
}
public class PrivateProtectedMethodClass : IMethodClass
{
public void InvokeMethod() => Method();
private protected virtual void Method() => throw new Exception();
}
public class ProtectedMethodClass : IMethodClass
{
public void InvokeMethod() => Method();
protected virtual void Method() => throw new Exception();
}
public class ProtectedInternalMethodClass : IMethodClass
{
public void InvokeMethod() => Method();
protected internal virtual void Method() => throw new Exception();
}
}
}