Add a new option `SAPI_ENABLE_CONTRIB_TESTS` that builds the sandboxes
in `contrib/` if set.
The new `contrib/CMakeLists.txt` should be extended each time we add a
new sandbox to `contrib/`.
This is in preparation of a follow-up change that should test the
sandboxes using GitHub Actions.
Drive-by:
- Rename the tests in `jsonnet_tests.cc` to conform to the style guide.
PiperOrigin-RevId: 425874289
Change-Id: I5b31546ccf84444c2480287220ef88abbd78a235
This change starts with Jsonnet as the canonical, ready-made sandboxed library
example. Follow-up changes should similarly migrate the OSS Internship
sandboxes.
- Add an `add_sapi_subdirectory()` which sets up source and binary directories
correctly when consuming SAPI as sub-project
- Restructure the Jsonnet `CMakeLists.txt` and simplify header inclusions
- Update the Jsonnet README file
PiperOrigin-RevId: 425818479
Change-Id: Iba9e83201863b4ad8a91914397b310d9d4230423
- Integrate `JsonnetTestHelper` into `JsonnetTest` class, remov multiple
inheritance
- Do not copy strings where it can be avoided
- Add missing includes to header files
