public void ProxyForClass()
{
object proxy = generator.CreateClassProxy(
typeof(ServiceClass),
new ResultModifierInterceptor()
);
Assert.IsNotNull(proxy);
Assert.IsTrue(typeof(ServiceClass).IsAssignableFrom(proxy.GetType()));
ServiceClass instance = (ServiceClass)proxy;
// return value is changed by the interceptor
Assert.AreEqual(44, instance.Sum(20, 25));
// return value is changed by the interceptor
Assert.AreEqual(true, instance.Valid);
Assert.AreEqual((byte)45, instance.Sum((byte)20, (byte)25)); // byte
Assert.AreEqual(45L, instance.Sum(20L, 25L)); // long
Assert.AreEqual((short)45, instance.Sum((short)20, (short)25)); // short
Assert.AreEqual(45f, instance.Sum(20f, 25f)); // float
Assert.AreEqual(45.0, instance.Sum(20.0, 25.0)); // double
Assert.AreEqual((ushort)45, instance.Sum((ushort)20, (ushort)25)); // ushort
Assert.AreEqual((uint)45, instance.Sum((uint)20, (uint)25)); // uint
Assert.AreEqual((ulong)45, instance.Sum((ulong)20, (ulong)25)); // ulong
}
public void ProxyForClassWithInterfaces()
{
object proxy = generator.CreateClassProxy(typeof(ServiceClass), new[] { typeof(IDisposable) },
new ResultModifierInterceptor());
Assert.IsNotNull(proxy);
Assert.IsTrue(typeof(ServiceClass).IsAssignableFrom(proxy.GetType()));
Assert.IsTrue(typeof(IDisposable).IsAssignableFrom(proxy.GetType()));
ServiceClass inter = (ServiceClass)proxy;
Assert.AreEqual(44, inter.Sum(20, 25));
Assert.AreEqual(true, inter.Valid);
try
{
IDisposable disp = (IDisposable)proxy;
disp.Dispose();
Assert.Fail("Expected exception as Dispose has no implementation");
}
catch (NotImplementedException ex)
{
Assert.AreEqual(
"This is a DynamicProxy2 error: The interceptor attempted to 'Proceed' for method 'Void Dispose()' which has no target. " +
"When calling method without target there is no implementation to 'proceed' to and it is the responsibility of the interceptor " +
"to mimic the implementation (set return value, out arguments etc)",
ex.Message);
}
}
public void InvocationForConcreteClassProxy()
{
KeepDataInterceptor interceptor = new KeepDataInterceptor();
object proxy = generator.CreateClassProxy(typeof(ServiceClass), interceptor);
ServiceClass instance = (ServiceClass)proxy;
instance.Sum(20, 25);
Assert.IsNotNull(interceptor.Invocation);
Assert.IsNotNull(interceptor.Invocation.Arguments);
Assert.AreEqual(2, interceptor.Invocation.Arguments.Length);
Assert.AreEqual(20, interceptor.Invocation.Arguments[0]);
Assert.AreEqual(25, interceptor.Invocation.Arguments[1]);
Assert.AreEqual(20, interceptor.Invocation.GetArgumentValue(0));
Assert.AreEqual(25, interceptor.Invocation.GetArgumentValue(1));
Assert.AreEqual(45, interceptor.Invocation.ReturnValue);
Assert.IsNotNull(interceptor.Invocation.Proxy);
Assert.IsInstanceOf(typeof(ServiceClass), interceptor.Invocation.Proxy);
Assert.IsNotNull(interceptor.Invocation.InvocationTarget);
Assert.IsInstanceOf(typeof(ServiceClass), interceptor.Invocation.InvocationTarget);
Assert.IsNotNull(interceptor.Invocation.TargetType);
Assert.AreSame(typeof(ServiceClass), interceptor.Invocation.TargetType);
Assert.IsNotNull(interceptor.Invocation.Method);
Assert.IsNotNull(interceptor.Invocation.MethodInvocationTarget);
Assert.AreSame(interceptor.Invocation.Method, interceptor.Invocation.MethodInvocationTarget.GetBaseDefinition());
}
public void ProxyForClass()
{
object proxy = _generator.CreateClassProxy(
typeof(ServiceClass), new ResultModifiedInvocationHandler( ));
Assert.IsNotNull(proxy);
Assert.IsTrue(typeof(ServiceClass).IsAssignableFrom(proxy.GetType()));
ServiceClass inter = (ServiceClass)proxy;
Assert.AreEqual(44, inter.Sum(20, 25));
Assert.AreEqual(true, inter.Valid);
}
public void HookIsUsedForConcreteClassProxy()
{
LogInvocationInterceptor logger = new LogInvocationInterceptor();
LogHook hook = new LogHook(typeof(ServiceClass), true);
ProxyGenerationOptions options = new ProxyGenerationOptions(hook);
ServiceClass proxy = (ServiceClass)generator.CreateClassProxy(typeof(ServiceClass), options, logger);
Assert.IsTrue(hook.Completed);
Assert.AreEqual(10, hook.AskedMembers.Count, "Asked members");
Assert.AreEqual(2, hook.NonVirtualMembers.Count, "Non-virtual members"); // <-- this would fail due to superfulous method check
proxy.Sum(1, 2);
Assert.IsFalse(proxy.Valid);
Assert.AreEqual("get_Valid ", logger.LogContents);
}
