Files
neovim/test/functional/ex_cmds/encoding_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
1.1 KiB
Lua

local t = require('test.testutil')
local describe, it, before_each = t.describe, t.it, t.before_each
local pcall_err = t.pcall_err
local n = require('test.functional.testnvim')()
local clear, feed = n.clear, n.feed
local eq, neq, eval = t.eq, t.neq, n.eval
describe('&encoding', function()
before_each(function()
clear()
-- sanity check: tests should run with encoding=utf-8
eq('utf-8', eval('&encoding'))
eq(3, eval('strwidth("Bär")'))
end)
it('cannot be changed after setup', function()
t.matches('E519%:', t.pcall_err(n.command, 'set encoding=latin1'))
eq('utf-8', eval('&encoding'))
-- check nvim is still in utf-8 mode
eq(3, eval('strwidth("Bär")'))
end)
it('cannot be changed before startup', function()
clear('--cmd', 'set enc=latin1')
-- error message expected
feed('<cr>')
neq(nil, string.find(eval('v:errmsg'), '^E519:'))
eq('utf-8', eval('&encoding'))
eq(3, eval('strwidth("Bär")'))
end)
it('can be set to utf-8 without error', function()
n.command('set encoding=utf-8')
eq('', eval('v:errmsg'))
clear('--cmd', 'set enc=utf-8')
eq('', eval('v:errmsg'))
end)
end)