Files
neovim/test/unit/eval/tricks_spec.lua
Justin M. Keyes 6d8c8b18d5 test(harness): migrate away from magic globals
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`.
2026-07-21 13:22:39 +02:00

41 lines
1.3 KiB
Lua

local t = require('test.unit.testutil')
local t_eval = require('test.unit.eval.testutil')
local describe = t.describe
local itp = t.gen_itp(t.it)
local cimport = t.cimport
local eq = t.eq
local eval0 = t_eval.eval0
local eval = cimport('./src/nvim/eval.h', './src/nvim/eval/typval.h', './src/nvim/memory.h')
describe('NULL typval_T', function()
itp('is produced by $XXX_UNEXISTENT_VAR_XXX', function()
-- Required for various tests which need to check whether typval_T with NULL
-- string works correctly. This test checks that unexistent environment
-- variable produces NULL string, not that some specific environment
-- variable does not exist. Last bit is left for the test writers.
local unexistent_env = 'XXX_UNEXISTENT_VAR_XXX'
while os.getenv(unexistent_env) ~= nil do
unexistent_env = unexistent_env .. '_XXX'
end
local rettv = eval0('$' .. unexistent_env)
eq(eval.VAR_STRING, rettv.v_type)
eq(nil, rettv.vval.v_string)
end)
itp('is produced by v:_null_list', function()
local rettv = eval0('v:_null_list')
eq(eval.VAR_LIST, rettv.v_type)
eq(nil, rettv.vval.v_list)
end)
itp('is produced by v:_null_dict', function()
local rettv = eval0('v:_null_dict')
eq(eval.VAR_DICT, rettv.v_type)
eq(nil, rettv.vval.v_dict)
end)
end)