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-- Test suite for testing luaeval() function
local helpers = require('test.functional.helpers')(after_each)
local redir_exec = helpers.redir_exec
local exc_exec = helpers.exc_exec
local command = helpers.command
local meths = helpers.meths
local funcs = helpers.funcs
local clear = helpers.clear
local eval = helpers.eval
local NIL = helpers.NIL
local eq = helpers.eq
before_each(clear)
local function startswith(expected, actual)
eq(expected, actual:sub(1, #expected))
end
describe('luaeval()', function()
local nested_by_level = {}
local nested = {}
local nested_s = '{}'
for i=1,100 do
if i % 2 == 0 then
nested = {nested}
nested_s = '{' .. nested_s .. '}'
else
nested = {nested=nested}
nested_s = '{nested=' .. nested_s .. '}'
end
nested_by_level[i] = {o=nested, s=nested_s}
end
describe('second argument', function()
it('is successfully received', function()
local t = {t=true, f=false, --[[n=NIL,]] d={l={'string', 42, 0.42}}}
eq(t, funcs.luaeval("_A", t))
-- Not tested: nil, funcrefs, returned object identity: behaviour will
-- most likely change.
end)
end)
describe('lua values', function()
it('are successfully transformed', function()
eq({n=1, f=1.5, s='string', l={4, 2}},
funcs.luaeval('{n=1, f=1.5, s="string", l={4, 2}}'))
-- Not tested: nil inside containers: behaviour will most likely change.
eq(NIL, funcs.luaeval('nil'))
eq({['']=1}, funcs.luaeval('{[""]=1}'))
end)
end)
describe('recursive lua values', function()
it('are successfully transformed', function()
funcs.luaeval('rawset(_G, "d", {})')
funcs.luaeval('rawset(d, "d", d)')
eq('\n{\'d\': {...@0}}', funcs.execute('echo luaeval("d")'))
funcs.luaeval('rawset(_G, "l", {})')
funcs.luaeval('table.insert(l, l)')
eq('\n[[...@0]]', funcs.execute('echo luaeval("l")'))
end)
end)
describe('strings', function()
it('are successfully converted to special dictionaries', function()
command([[let s = luaeval('"\0"')]])
eq({_TYPE={}, _VAL={'\n'}}, meths.get_var('s'))
eq(1, funcs.eval('s._TYPE is v:msgpack_types.binary'))
end)
it('are successfully converted to special dictionaries in table keys',
function()
command([[let d = luaeval('{["\0"]=1}')]])
eq({_TYPE={}, _VAL={{{_TYPE={}, _VAL={'\n'}}, 1}}}, meths.get_var('d'))
eq(1, funcs.eval('d._TYPE is v:msgpack_types.map'))
eq(1, funcs.eval('d._VAL[0][0]._TYPE is v:msgpack_types.string'))
end)
it('are successfully converted to special dictionaries from a list',
function()
command([[let l = luaeval('{"abc", "a\0b", "c\0d", "def"}')]])
eq({'abc', {_TYPE={}, _VAL={'a\nb'}}, {_TYPE={}, _VAL={'c\nd'}}, 'def'},
meths.get_var('l'))
eq(1, funcs.eval('l[1]._TYPE is v:msgpack_types.binary'))
eq(1, funcs.eval('l[2]._TYPE is v:msgpack_types.binary'))
end)
end)
-- Not checked: funcrefs converted to NIL. To be altered to something more
-- meaningful later.
it('correctly evaluates scalars', function()
eq(1, funcs.luaeval('1'))
eq(0, eval('type(luaeval("1"))'))
eq(1.5, funcs.luaeval('1.5'))
eq(5, eval('type(luaeval("1.5"))'))
eq("test", funcs.luaeval('"test"'))
eq(1, eval('type(luaeval("\'test\'"))'))
eq('', funcs.luaeval('""'))
eq({_TYPE={}, _VAL={'\n'}}, funcs.luaeval([['\0']]))
eq({_TYPE={}, _VAL={'\n', '\n'}}, funcs.luaeval([['\0\n\0']]))
eq(1, eval([[luaeval('"\0\n\0"')._TYPE is v:msgpack_types.binary]]))
eq(true, funcs.luaeval('true'))
eq(false, funcs.luaeval('false'))
eq(NIL, funcs.luaeval('nil'))
end)
it('correctly evaluates containers', function()
eq({}, funcs.luaeval('{}'))
eq(3, eval('type(luaeval("{}"))'))
eq({test=1, foo=2}, funcs.luaeval('{test=1, foo=2}'))
eq(4, eval('type(luaeval("{test=1, foo=2}"))'))
eq({4, 2}, funcs.luaeval('{4, 2}'))
eq(3, eval('type(luaeval("{4, 2}"))'))
local level = 30
eq(nested_by_level[level].o, funcs.luaeval(nested_by_level[level].s))
eq({_TYPE={}, _VAL={{{_TYPE={}, _VAL={'\n', '\n'}}, {_TYPE={}, _VAL={'\n', '\n\n'}}}}},
funcs.luaeval([[{['\0\n\0']='\0\n\0\0'}]]))
eq(1, eval([[luaeval('{["\0\n\0"]="\0\n\0\0"}')._TYPE is v:msgpack_types.map]]))
eq(1, eval([[luaeval('{["\0\n\0"]="\0\n\0\0"}')._VAL[0][0]._TYPE is v:msgpack_types.string]]))
eq(1, eval([[luaeval('{["\0\n\0"]="\0\n\0\0"}')._VAL[0][1]._TYPE is v:msgpack_types.binary]]))
eq({nested={{_TYPE={}, _VAL={{{_TYPE={}, _VAL={'\n', '\n'}}, {_TYPE={}, _VAL={'\n', '\n\n'}}}}}}},
funcs.luaeval([[{nested={{['\0\n\0']='\0\n\0\0'}}}]]))
end)
it('correctly passes scalars as argument', function()
eq(1, funcs.luaeval('_A', 1))
eq(1.5, funcs.luaeval('_A', 1.5))
eq('', funcs.luaeval('_A', ''))
eq('test', funcs.luaeval('_A', 'test'))
eq(NIL, funcs.luaeval('_A', NIL))
eq(true, funcs.luaeval('_A', true))
eq(false, funcs.luaeval('_A', false))
end)
it('correctly passes containers as argument', function()
eq({}, funcs.luaeval('_A', {}))
eq({test=1}, funcs.luaeval('_A', {test=1}))
eq({4, 2}, funcs.luaeval('_A', {4, 2}))
local level = 28
eq(nested_by_level[level].o, funcs.luaeval('_A', nested_by_level[level].o))
end)
local function sp(typ, val)
return ('{"_TYPE": v:msgpack_types.%s, "_VAL": %s}'):format(typ, val)
end
local function mapsp(...)
local val = ''
for i=1,(select('#', ...)/2) do
val = ('%s[%s,%s],'):format(val, select(i * 2 - 1, ...),
select(i * 2, ...))
end
return sp('map', '[' .. val .. ']')
end
local function luaevalarg(argexpr, expr)
return eval(([=[
[
extend(g:, {'_ret': luaeval(%s, %s)})._ret,
type(g:_ret)==type({})&&has_key(g:_ret, '_TYPE')
? [
get(keys(filter(copy(v:msgpack_types), 'v:val is g:_ret._TYPE')), 0,
g:_ret._TYPE),
get(g:_ret, '_VAL', g:_ret)
]
: [0, g:_ret]][1]
]=]):format(expr or '"_A"', argexpr):gsub('\n', ''))
end
it('correctly passes special dictionaries', function()
eq({'binary', {'\n', '\n'}}, luaevalarg(sp('binary', '["\\n", "\\n"]')))
eq({'binary', {'\n', '\n'}}, luaevalarg(sp('string', '["\\n", "\\n"]')))
eq({0, true}, luaevalarg(sp('boolean', 1)))
eq({0, false}, luaevalarg(sp('boolean', 0)))
eq({0, NIL}, luaevalarg(sp('nil', 0)))
eq({0, {[""]=""}}, luaevalarg(mapsp(sp('binary', '[""]'), '""')))
eq({0, {[""]=""}}, luaevalarg(mapsp(sp('string', '[""]'), '""')))
end)
it('issues an error in some cases', function()
eq("Vim(call):E5100: Cannot convert given lua table: table should either have a sequence of positive integer keys or contain only string keys",
exc_exec('call luaeval("{1, foo=2}")'))
eq("Vim(call):E5101: Cannot convert given lua type",
exc_exec('call luaeval("vim.api.nvim_buf_get_lines")'))
startswith("Vim(call):E5107: Error while creating lua chunk for luaeval(): ",
exc_exec('call luaeval("1, 2, 3")'))
startswith("Vim(call):E5108: Error while calling lua chunk for luaeval(): ",
exc_exec('call luaeval("(nil)()")'))
eq("Vim(call):E5101: Cannot convert given lua type",
exc_exec('call luaeval("{42, vim.api}")'))
eq("Vim(call):E5101: Cannot convert given lua type",
exc_exec('call luaeval("{foo=42, baz=vim.api}")'))
-- The following should not crash: conversion error happens inside
eq("Vim(call):E5101: Cannot convert given lua type",
exc_exec('call luaeval("vim.api")'))
-- The following should not show internal error
eq("\nE5101: Cannot convert given lua type\n0",
redir_exec('echo luaeval("vim.api")'))
end)
it('correctly converts containers with type_idx', function()
eq(5, eval('type(luaeval("{[vim.type_idx]=vim.types.float, [vim.val_idx]=0}"))'))
eq(4, eval([[type(luaeval('{[vim.type_idx]=vim.types.dictionary}'))]]))
eq(3, eval([[type(luaeval('{[vim.type_idx]=vim.types.array}'))]]))
eq({}, funcs.luaeval('{[vim.type_idx]=vim.types.array}'))
-- Presence of type_idx makes Vim ignore some keys
eq({42}, funcs.luaeval('{[vim.type_idx]=vim.types.array, [vim.val_idx]=10, [5]=1, foo=2, [1]=42}'))
eq({foo=2}, funcs.luaeval('{[vim.type_idx]=vim.types.dictionary, [vim.val_idx]=10, [5]=1, foo=2, [1]=42}'))
eq(10, funcs.luaeval('{[vim.type_idx]=vim.types.float, [vim.val_idx]=10, [5]=1, foo=2, [1]=42}'))
-- The following should not crash
eq({}, funcs.luaeval('{[vim.type_idx]=vim.types.dictionary}'))
end)
it('correctly converts self-containing containers', function()
meths.set_var('l', {})
eval('add(l, l)')
eq(true, eval('luaeval("_A == _A[1]", l)'))
eq(true, eval('luaeval("_A[1] == _A[1][1]", [l])'))
eq(true, eval('luaeval("_A.d == _A.d[1]", {"d": l})'))
eq(true, eval('luaeval("_A ~= _A[1]", [l])'))
meths.set_var('d', {foo=42})
eval('extend(d, {"d": d})')
eq(true, eval('luaeval("_A == _A.d", d)'))
eq(true, eval('luaeval("_A[1] == _A[1].d", [d])'))
eq(true, eval('luaeval("_A.d == _A.d.d", {"d": d})'))
eq(true, eval('luaeval("_A ~= _A.d", {"d": d})'))
end)
it('errors out correctly when doing incorrect things in lua', function()
-- Conversion errors
eq('Vim(call):E5108: Error while calling lua chunk for luaeval(): [string "<VimL compiled string>"]:1: attempt to call field \'xxx_nonexistent_key_xxx\' (a nil value)',
exc_exec([[call luaeval("vim.xxx_nonexistent_key_xxx()")]]))
eq('Vim(call):E5108: Error while calling lua chunk for luaeval(): [string "<VimL compiled string>"]:1: ERROR',
exc_exec([[call luaeval("error('ERROR')")]]))
eq('Vim(call):E5108: Error while calling lua chunk for luaeval(): [NULL]',
exc_exec([[call luaeval("error(nil)")]]))
end)
it('does not leak memory when called with too long line',
function()
local s = ('x'):rep(65536)
eq('Vim(call):E5107: Error while creating lua chunk for luaeval(): [string "<VimL compiled string>"]:1: unexpected symbol near \')\'',
exc_exec([[call luaeval("(']] .. s ..[[' + )")]]))
eq(s, funcs.luaeval('"' .. s .. '"'))
end)
end)
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