Problem:
The magic globals `it`, `describe`, etc., are more trouble than they are
worth.
- Hooking into `after_each` requires `getfenv()` hacks.
- They confuse luals/emmylua, because the top-level `.luarc.json` isn't
merged with `test/.luarc.json` (apparently a luals limitation?)
- They totally defeat discoverability because the user just has to
"know" about the various magic symbols.
So they harm DX, which means they serve no purpose at all.
Solution:
- Expose the test API from `testutil`, so tests can call `t.it()`,
`t.describe()`, etc., in the conventional way.
- Drop `getfenv()` hacks.
- Drop the `setfenv()` injection in `load_chunk`.
- Drop `test/_meta.lua`.
Before calling "attach" a screen object is just a dummy container for
(row, col) values whose purpose is to be sent as part of the "attach"
function call anyway.
Just create the screen in an attached state directly. Keep the complete
(row, col, options) config together. It is still completely valid to
later detach and re-attach as needed, including to another session.
Specifically, functions that are run in the context of the test runner
are put in module `test/testutil.lua` while the functions that are run
in the context of the test session are put in
`test/functional/testnvim.lua`.
Closes https://github.com/neovim/neovim/issues/27004.
- Lua test correctly fails when 8.1.0849 is reverted.
- 8.1.1001 bug does not manifest in Neovim.
vim-patch:8.1.0849: cursorline highlight is not always updated
Problem: Cursorline highlight is not always updated.
Solution: Set w_last_cursorline when redrawing. Fix resetting cursor flags
when using the popup menu.
https://github.com/vim/vim/commit/c07ff5c60ad35982e9cdaa9dd72d3d1669935e87
vim-patch:8.1.1001: Visual area not correct when using 'cursorline'
Problem: Visual area not correct when using 'cursorline'.
Solution: Update w_last_cursorline also in Visual mode. (Hirohito Higashi,
closesvim/vim#4086)
https://github.com/vim/vim/commit/8156ed37558231a8167a1a61a147713d84c9af59
Justin M. Keyes