dragoev JustMock by: dragoev Todorov tailsu Tsolova .NET Framework 3.5 21,198 total downloads last updated 2/25/2015 Latest version: 2015.1.224.3 tdd mocking mocks mock aaa unittest unittesting unit-testing testing fake More tags The most powerful free mocking library available for .NET developers. JustMock.Mef by: dragoev tailsu .NET Framework 4.0 526 total downloads last updated 10/15/2014 Latest version: 1.1.2 justmock mef Export provider and mocking container for unit-testing MEF-based projects.