neovim/test/functional/eval/sort_spec.lua
ZyX f8d574225b eval: Silence PVS/V547: E882 may be triggered
I failed to deduce why analyzer thinks E882 may not be triggered, though 
conditions for triggering it are strange: it would trigger E882 only in the 
single case “function returned non-number”. Cases “function thrown exception”, 
or “built-in sorter encountered error” will neither yield E882 nor stop 
sort()/uniq().

Note though that searching test code revealed that neither E702 nor E882 are not 
tested anywhere.
2018-04-15 18:45:12 +03:00

57 lines
1.8 KiB
Lua

local helpers = require('test.functional.helpers')(after_each)
local eq = helpers.eq
local NIL = helpers.NIL
local eval = helpers.eval
local clear = helpers.clear
local meths = helpers.meths
local funcs = helpers.funcs
local command = helpers.command
local exc_exec = helpers.exc_exec
local redir_exec = helpers.redir_exec
before_each(clear)
describe('sort()', function()
it('errors out when sorting special values', function()
eq('Vim(call):E907: Using a special value as a Float',
exc_exec('call sort([v:true, v:false], "f")'))
end)
it('sorts “wrong” values between -0.0001 and 0.0001, preserving order',
function()
meths.set_var('list', {true, false, NIL, {}, {a=42}, 'check',
0.0001, -0.0001})
command('call insert(g:list, function("tr"))')
local error_lines = funcs.split(
funcs.execute('silent! call sort(g:list, "f")'), '\n')
local errors = {}
for _, err in ipairs(error_lines) do
errors[err] = true
end
eq({
['E891: Using a Funcref as a Float']=true,
['E892: Using a String as a Float']=true,
['E893: Using a List as a Float']=true,
['E894: Using a Dictionary as a Float']=true,
['E907: Using a special value as a Float']=true,
}, errors)
eq('[-1.0e-4, function(\'tr\'), v:true, v:false, v:null, [], {\'a\': 42}, \'check\', 1.0e-4]',
eval('string(g:list)'))
end)
it('can yield E702 and stop sorting 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('\nE745: Using a List as a Number\nE702: Sort compare function failed',
redir_exec('let sl = sort([1, 0, [], 3, 2], "Cmp")'))
eq({1, 0, {}, 3, 2}, meths.get_var('sl'))
end)
end)