Re: [PATCH v8 0/3] Add unit test framework and project plan

>
> In our current testing environment, we spend a significant amount of
> effort crafting end-to-end tests for error conditions that could easily
> be captured by unit tests (or we simply forgo some hard-to-setup and
> rare error conditions). Unit tests additionally provide stability to the
> codebase and can simplify debugging through isolation. Turning parts of
> Git into libraries[1] gives us the ability to run unit tests on the
> libraries and to write unit tests in C. Writing unit tests in pure C,
> rather than with our current shell/test-tool helper setup, simplifies
> test setup, simplifies passing data around (no shell-isms required), and
> reduces testing runtime by not spawning a separate process for every
> test invocation.
>
> This series begins with a project document covering our goals for adding
> unit tests and a discussion of alternative frameworks considered, as
> well as the features used to evaluate them. A rendered preview of this
> doc can be found at [2]. It also adds Phillip Wood's TAP implemenation
> (with some slightly re-worked Makefile rules) and a sample strbuf unit
> test. Finally, we modify the configs for GitHub and Cirrus CI to run the
> unit tests. Sample runs showing successful CI runs can be found at [3],
> [4], and [5].