Auto-Execute method / code before or after EVERY test method runs

Question

I have inherited a test project with thousands of test methods / classes and I need to implement a new clean up procedure that needs to run after or before every test. I know this is not the best but this is the current situation I am in. In a year from now we will hopefully have all these tests rebuilt properly. I need to some how run a method before or after every test without hard codding the method in every single test class as we just do not have time for this. I know there are attributes for assembly clean up and init, but that only runs before and after the entire assembly. I need something like this, but that runs after every test without coding that functionality per test.

Is this possible? What are some options?

EDIT I am using MSTest

Answer 1

Assuming you're using MSTest, the attribute you need for the set up method is [TestInitialize]. A method decorated with this attribute will run before every single test.