I love this smart template generator, saves so much time and effort.

Generates a unit test boilerplate from a given C# class, setting up mocks for all dependencies. Right click an item in Solution Explorer and choose “Create Unit Test Boilerplate” . Supports Visual Studio Test, NUnit, xUnit and many mock frameworks.

https://marketplace.visualstudio.com/items?itemName=RandomEngy.UnitTestBoilerplateGenerator