public void Throws_If_Target_Is_Null()
{
Foo foo = null;
var proxy = new Proxy<IFoo>()
.Intercept(f => f.Go())
.OnInvoke(mi => foo.Go())
.Save();
// TODO: Validate that the target isn't null, action.Target doesn't work, it means that the method is static.
Assert.Throws<NullReferenceException>(() => proxy.Go());
}
public void Can_Intercept_Virtual_Methods()
{
var foo = new Foo();
var proxy = new Proxy<Foo>()
.Target(foo)
.InterceptMethod(f => f.Go())
.OnBefore(() => Assert.False(foo.WasExecuted))
.Save();
proxy.Go();
Assert.True(foo.WasExecuted);
}
public void Can_Callback_OnAfter()
{
var foo = new Foo();
var proxy = new Proxy<IFoo>()
.Intercept(f => f.Go())
.OnInvoke(mi => foo.Go())
.OnAfter(() => Assert.True(foo.WasExecuted))
.Save();
Assert.False(foo.WasExecuted);
proxy.Go();
}
public void Can_Callback_OnBefore_OnFinally_And_OnAfter()
{
var ack = 0;
var foo = new Foo();
var proxy = new Proxy<IFoo>()
.Intercept(f => f.Go())
.OnBefore(() => { ack++; Assert.False(foo.WasExecuted); })
.OnInvoke(mi => foo.Go())
.OnFinally(() => ack++)
.OnAfter(() => { ack++; Assert.True(foo.WasExecuted); })
.Save();
proxy.Go();
Assert.Equal(3, ack);
}
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_Intercept_All_Methods_Getters_And_Setters()
{
var ack = 0;
var foo = new Foo();
var proxy = new Proxy<IFoo>()
.Target(foo)
.InterceptAll()
.OnFinally(() => { ack++; })
.Save();
// intercepts all gettrers, setters and methods...
proxy.Go();
var name = proxy.Name;
var description = proxy.Description;
proxy.Name = string.Empty;
var result = proxy.GenericGo<int>(-1);
Assert.Equal(5, ack);
}
public void Can_Infer_Target_Method_If_A_Target_Object_Exists()
{
var foo = new Foo();
var proxy = new Proxy<IFoo>()
.Target(foo)
.Intercept(f => f.Go())
.OnBefore(() => Assert.False(foo.WasExecuted))
//.OnInvoke(mi => foo.Go()) must be inferred from context
.Save();
proxy.Go();
Assert.True(foo.WasExecuted);
}