I found that ReSharper support NUnit 2 test framework. However I would like to know from which version it is supported. I read from 2.6.2 here, https://www.jetbrains.com/help/resharper/Unit_Testing__Index.html. I want to run tests on some projects based on NUnit version 2.2.8 specifically. I tried and it seems to run well in Visual Studio Community 2019, with ReSharper 2021.1.2. In fact I would like to know as well if I can trust ReSharper about it or I will end up maybe with problems.