I\'m wondering if there\'s any mocking framework that allows testing methods contaning method calls to dependent class instances not injected to the tested method or its class:<
I have never used it but based on some articles Moles should be able to do that.
MSDN says:
Mole types use a powerful detouring framework that uses code profiler APIs to intercept calls to dependency classes and redirects the calls to a fake object
If you want to mock the dependent object, you'll need a way to provide a mock instance. The best way to do this is to use dependency injection. It will not only make your code cleaner but it will also help decouple your classes, improving your design.