Summary:
This implements Arcanist support for the xUnit testing framework. It also supports code coverage by way of `cstools` (which is something I've written).
The unit test support works under both Linux and Windows, while the code coverage support has only been tested under Linux (one would assume it would also work under Windows given that Windows has a super-set of functionality in the C# world).
The Arcanist support assumes that the directory layout will be something like:
* MyProject
* MyProject.Tests
When files are changed in either MyProject or MyProject.Tests, it causes MyProject.Tests to be built and the xUnit runner to be executed on the resulting binary.
Test Plan: I guess if really wanted to, you could create a C# project in MonoDevelop, set up `.arcconfig` to point to this unit test engine, and download and build xUnit and cstools. Run `arc unit --coverage` to see the results of your unit test coverage.
Reviewers: epriestley
Reviewed By: epriestley
CC: Korvin, aran
Maniphest Tasks: T3859
Differential Revision: https://secure.phabricator.com/D7058
