Say 'IoC' - imply 'testing', say 'testing' - imply...

I'm curious, what if instead of standard {Before, After}[Class] use IoC like declarations for setting a test environment. It's not necessary to use IoC in basic project.. but if an architecture is created with taking in the account the possibility of automate testing then it's most likely that the whole test environment creation can be easy implemented by means of IoC container.