ErrorUnit

ErrorUnit Visual Studio extension converts development/logged errors into C# Unit Tests with parameters and EF data accessed so far.

As you may know creating Unit Tests is a laborious part of development and in TDD (Test Driven Development) up to 50% of a programmer's job is writing the Unit Tests. Unit Tests are classically separated into three parts Arrange, Act and Assert; the Arrange portion is the largest part of a unit test and it sets up all the preconditions to a test, mocking all the data that is going to be acted upon in the test, the Act portion of an Unit Test is usually one line and activates the portion of code being tested passing in that data, and finally the Assert portion of the test takes the results of the Act portion and verifies that it met expectations ( can be zero lines when just making sure there is no error).

My new tool ErrorUnit automatically writes the Arrange, and Act parts of the unit test, meaning it automates over 2/3rds of the task of creating a unit test. It does this by integrating with the application's IoC (Inversion of Control) / DI ( Dependency Injection) library, or integrating into a MVC / Web API applications control filters, or using an AOP ( Aspect-Oriented Programming) library. Then when a programmer is debugging an application they can pause the program and create a Unit test for that code; ErrorUnit also acts as an error logger formatter, logging errors in any environment for conversion into Unit tests (hence its name). These Unit Tests contain not only the parameters that called methods, but the variables in each class, and the data accessed so far by EF (Entity Framework) from the database.

The ability to "Mock" Entity Framework is a killer feature as developers have struggled and have failed to mock it, rendering unit testing EF calls nearly impossible; not so with ErrorUnit.