neovim/test/functional/vimscript/uniq_spec.lua
Justin M. Keyes 2afbce7651
refactor(tests): remove redir_exec #15718
Problem
- `redir_exec` is obsolete, but it keeps getting used in new tests
  because people copy existing tests.
- Disadvantages of `redir_exec`:
  - Captures extra junk before the actual error/message that we _want_ to test.
  - Does not fail on error, unlike e.g. `command()`.

Solution
- Use new functions like `nvim_exec` and `pcall_err`.
2021-09-19 02:29:37 -07:00

30 lines
843 B
Lua

local helpers = require('test.functional.helpers')(after_each)
local eq = helpers.eq
local clear = helpers.clear
local command = helpers.command
local exc_exec = helpers.exc_exec
local pcall_err = helpers.pcall_err
before_each(clear)
describe('uniq()', function()
it('errors out when processing special values', function()
eq('Vim(call):E362: Using a boolean value as a Float',
exc_exec('call uniq([v:true, v:false], "f")'))
end)
it('can yield E882 and stop filtering after that', function()
command([[
function Cmp(a, b)
if type(a:a) == type([]) || type(a:b) == type([])
return []
endif
return (a:a > a:b) - (a:a < a:b)
endfunction
]])
eq('Vim(let):E745: Using a List as a Number',
pcall_err(command, 'let fl = uniq([0, 0, [], 1, 1], "Cmp")'))
end)
end)