public void Can_Utilize_Custom_Interceptors_Example_Of_How_To_Extend_MethodWrapper()
        {
            var wrapper = new CustomWrapper();
            var proxy = new Proxy<IFoo>()
                .InterceptMethod(f => f.Return())
                .With(wrapper)
                .Save();

            Assert.Equal(-1, proxy.Return());
        }
        public void Can_Utilize_Inline_Interceptors_Example_Of_How_To_Use_Nested_Closure()
        {
            var ack = 0;
            var target = new Foo();
            var proxy = new Proxy<IFoo>()
                .Target(target)
                .InterceptMethod(f => f.Return())
                .With(m =>
                {
                    m.OnBefore(() => ack++);
                    m.OnReturn(() => -1);
                })
                .Save();

            Assert.Equal(-1, proxy.Return());
            Assert.Equal(1, ack);
        }
        public void Can_Skip_Target()
        {
            var foo = new Foo();
            var proxy = new Proxy<IFoo>()
                .Target(foo)
                .Intercept(f => f.Return())
                .OnInvoke(mi => -2) // returns back, target won't be called
                .Save();

            Assert.Equal(-2, proxy.Return());
            Assert.False(foo.WasExecuted);
        }
        public void Can_Intercept_Multiple_Methods_Using_A_Filter()
        {
            var ack = 0;
            var foo = new Foo();
            var proxy = new Proxy<IFoo>()
                .Target(foo)
                .InterceptWhere(mi => mi.Name.EndsWith("Go"))
                //.InterceptWhere(mi => mi.IsGenericMethod )
                .OnBefore(mi => ack++)
                .Save();

            // intercepted
            proxy.Go();
            proxy.GenericGo<int>(-1);
            proxy.OverloadedGo(-1);
            proxy.OverloadedGo(string.Empty);

            // not intercepted
            proxy.Name = string.Empty;
            proxy.Return();

            Assert.Equal(4, ack);
        }
        public void Can_Intercept_Multiple_Members_Using_A_Single_Fluent_Instruction()
        {
            var ack = 0;
            var foo = new Foo();
            var proxy = new Proxy<IFoo>()
                .Target(foo)
                .InterceptMethod(f => f.Go())
                    .OnBefore(() => Assert.Equal(0, ack))
                    .OnAfter(() => ack++)
                .InterceptGetter(f => f.Name)
                    .OnBefore(() => Assert.Equal(1, ack))
                    .OnAfter(() => ack++)
                .InterceptSetter(f => f.Description)
                    .OnBefore(() => Assert.Equal(2, ack))
                    .OnAfter(() => ack++)
                .Save();

            // intercepted
            proxy.Go();
            var name = proxy.Name;
            proxy.Description = string.Empty;

            // not intercpted
            proxy.Return();
            proxy.Name = string.Empty;
            var desc = proxy.Description;

            Assert.Equal(3, ack);
        }
        public void Can_Intercept_Many_Methods_With_One_Advice()
        {
            var ack = 0;
            var foo = new Foo();
            var proxy = new Proxy<IFoo>()
                .Target(foo)
                .InterceptMethods(
                    f => f.Return(),
                    f => f.GenericGo<int>(It.Any<int>()),
                    f => f.Go())
                .OnBefore(mi => ack++)
                .Save();

            // intercepted
            proxy.Go();
            proxy.Return();
            proxy.GenericGo<int>(-1);

            // not intercepted
            proxy.Name = string.Empty;
            proxy.OverloadedGo(-1);
            proxy.OverloadedGo(string.Empty);

            Assert.Equal(3, ack);
        }
        public void Can_Callback_OnReturn_And_Replace_Return_Value()
        {
            var foo = new Foo();
            var proxy = new Proxy<IFoo>()
                .Intercept(f => f.Return())
                .OnInvoke(mi => foo.Return())
                .OnReturn((mi, r) => r.Equals(1) ? -1 : -2)
                .Save();

            Assert.Equal(-1, proxy.Return());
            Assert.True(foo.WasExecuted);
        }