mirror of
https://github.com/neovim/neovim.git
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340 lines
13 KiB
Lua
340 lines
13 KiB
Lua
-- Test suite for testing luaeval() function
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local helpers = require('test.functional.helpers')(after_each)
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local Screen = require('test.functional.ui.screen')
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local redir_exec = helpers.redir_exec
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local pcall_err = helpers.pcall_err
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local exc_exec = helpers.exc_exec
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local exec_lua = helpers.exec_lua
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local command = helpers.command
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local meths = helpers.meths
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local funcs = helpers.funcs
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local clear = helpers.clear
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local eval = helpers.eval
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local feed = helpers.feed
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local NIL = helpers.NIL
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local eq = helpers.eq
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before_each(clear)
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local function startswith(expected, actual)
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eq(expected, actual:sub(1, #expected))
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end
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describe('luaeval()', function()
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local nested_by_level = {}
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local nested = {}
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local nested_s = '{}'
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for i=1,100 do
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if i % 2 == 0 then
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nested = {nested}
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nested_s = '{' .. nested_s .. '}'
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else
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nested = {nested=nested}
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nested_s = '{nested=' .. nested_s .. '}'
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end
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nested_by_level[i] = {o=nested, s=nested_s}
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end
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describe('second argument', function()
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it('is successfully received', function()
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local t = {t=true, f=false, --[[n=NIL,]] d={l={'string', 42, 0.42}}}
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eq(t, funcs.luaeval("_A", t))
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-- Not tested: nil, funcrefs, returned object identity: behaviour will
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-- most likely change.
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end)
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end)
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describe('lua values', function()
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it('are successfully transformed', function()
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eq({n=1, f=1.5, s='string', l={4, 2}},
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funcs.luaeval('{n=1, f=1.5, s="string", l={4, 2}}'))
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-- Not tested: nil inside containers: behaviour will most likely change.
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eq(NIL, funcs.luaeval('nil'))
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eq({['']=1}, funcs.luaeval('{[""]=1}'))
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end)
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end)
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describe('recursive lua values', function()
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it('are successfully transformed', function()
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command('lua rawset(_G, "d", {})')
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command('lua rawset(d, "d", d)')
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eq('\n{\'d\': {...@0}}', funcs.execute('echo luaeval("d")'))
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command('lua rawset(_G, "l", {})')
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command('lua table.insert(l, l)')
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eq('\n[[...@0]]', funcs.execute('echo luaeval("l")'))
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end)
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end)
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describe('strings', function()
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it('are successfully converted to special dictionaries', function()
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command([[let s = luaeval('"\0"')]])
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eq({_TYPE={}, _VAL={'\n'}}, meths.get_var('s'))
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eq(1, funcs.eval('s._TYPE is v:msgpack_types.binary'))
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end)
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it('are successfully converted to special dictionaries in table keys',
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function()
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command([[let d = luaeval('{["\0"]=1}')]])
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eq({_TYPE={}, _VAL={{{_TYPE={}, _VAL={'\n'}}, 1}}}, meths.get_var('d'))
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eq(1, funcs.eval('d._TYPE is v:msgpack_types.map'))
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eq(1, funcs.eval('d._VAL[0][0]._TYPE is v:msgpack_types.string'))
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end)
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it('are successfully converted to special dictionaries from a list',
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function()
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command([[let l = luaeval('{"abc", "a\0b", "c\0d", "def"}')]])
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eq({'abc', {_TYPE={}, _VAL={'a\nb'}}, {_TYPE={}, _VAL={'c\nd'}}, 'def'},
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meths.get_var('l'))
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eq(1, funcs.eval('l[1]._TYPE is v:msgpack_types.binary'))
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eq(1, funcs.eval('l[2]._TYPE is v:msgpack_types.binary'))
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end)
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end)
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-- Not checked: funcrefs converted to NIL. To be altered to something more
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-- meaningful later.
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it('correctly evaluates scalars', function()
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eq(1, funcs.luaeval('1'))
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eq(0, eval('type(luaeval("1"))'))
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eq(1.5, funcs.luaeval('1.5'))
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eq(5, eval('type(luaeval("1.5"))'))
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eq("test", funcs.luaeval('"test"'))
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eq(1, eval('type(luaeval("\'test\'"))'))
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eq('', funcs.luaeval('""'))
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eq({_TYPE={}, _VAL={'\n'}}, funcs.luaeval([['\0']]))
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eq({_TYPE={}, _VAL={'\n', '\n'}}, funcs.luaeval([['\0\n\0']]))
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eq(1, eval([[luaeval('"\0\n\0"')._TYPE is v:msgpack_types.binary]]))
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eq(true, funcs.luaeval('true'))
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eq(false, funcs.luaeval('false'))
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eq(NIL, funcs.luaeval('nil'))
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end)
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it('correctly evaluates containers', function()
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eq({}, funcs.luaeval('{}'))
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eq(3, eval('type(luaeval("{}"))'))
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eq({test=1, foo=2}, funcs.luaeval('{test=1, foo=2}'))
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eq(4, eval('type(luaeval("{test=1, foo=2}"))'))
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eq({4, 2}, funcs.luaeval('{4, 2}'))
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eq(3, eval('type(luaeval("{4, 2}"))'))
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local level = 30
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eq(nested_by_level[level].o, funcs.luaeval(nested_by_level[level].s))
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eq({_TYPE={}, _VAL={{{_TYPE={}, _VAL={'\n', '\n'}}, {_TYPE={}, _VAL={'\n', '\n\n'}}}}},
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funcs.luaeval([[{['\0\n\0']='\0\n\0\0'}]]))
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eq(1, eval([[luaeval('{["\0\n\0"]="\0\n\0\0"}')._TYPE is v:msgpack_types.map]]))
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eq(1, eval([[luaeval('{["\0\n\0"]="\0\n\0\0"}')._VAL[0][0]._TYPE is v:msgpack_types.string]]))
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eq(1, eval([[luaeval('{["\0\n\0"]="\0\n\0\0"}')._VAL[0][1]._TYPE is v:msgpack_types.binary]]))
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eq({nested={{_TYPE={}, _VAL={{{_TYPE={}, _VAL={'\n', '\n'}}, {_TYPE={}, _VAL={'\n', '\n\n'}}}}}}},
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funcs.luaeval([[{nested={{['\0\n\0']='\0\n\0\0'}}}]]))
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end)
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it('correctly passes scalars as argument', function()
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eq(1, funcs.luaeval('_A', 1))
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eq(1.5, funcs.luaeval('_A', 1.5))
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eq('', funcs.luaeval('_A', ''))
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eq('test', funcs.luaeval('_A', 'test'))
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eq(NIL, funcs.luaeval('_A', NIL))
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eq(true, funcs.luaeval('_A', true))
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eq(false, funcs.luaeval('_A', false))
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end)
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it('correctly passes containers as argument', function()
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eq({}, funcs.luaeval('_A', {}))
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eq({test=1}, funcs.luaeval('_A', {test=1}))
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eq({4, 2}, funcs.luaeval('_A', {4, 2}))
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local level = 28
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eq(nested_by_level[level].o, funcs.luaeval('_A', nested_by_level[level].o))
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end)
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local function sp(typ, val)
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return ('{"_TYPE": v:msgpack_types.%s, "_VAL": %s}'):format(typ, val)
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end
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local function mapsp(...)
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local val = ''
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for i=1,(select('#', ...)/2) do
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val = ('%s[%s,%s],'):format(val, select(i * 2 - 1, ...),
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select(i * 2, ...))
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end
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return sp('map', '[' .. val .. ']')
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end
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local function luaevalarg(argexpr, expr)
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return eval(([=[
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[
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extend(g:, {'_ret': luaeval(%s, %s)})._ret,
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type(g:_ret)==type({})&&has_key(g:_ret, '_TYPE')
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? [
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get(keys(filter(copy(v:msgpack_types), 'v:val is g:_ret._TYPE')), 0,
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g:_ret._TYPE),
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get(g:_ret, '_VAL', g:_ret)
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]
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: [0, g:_ret]][1]
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]=]):format(expr or '"_A"', argexpr):gsub('\n', ''))
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end
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it('correctly passes special dictionaries', function()
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eq({'binary', {'\n', '\n'}}, luaevalarg(sp('binary', '["\\n", "\\n"]')))
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eq({'binary', {'\n', '\n'}}, luaevalarg(sp('string', '["\\n", "\\n"]')))
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eq({0, true}, luaevalarg(sp('boolean', 1)))
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eq({0, false}, luaevalarg(sp('boolean', 0)))
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eq({0, NIL}, luaevalarg(sp('nil', 0)))
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eq({0, {[""]=""}}, luaevalarg(mapsp(sp('binary', '[""]'), '""')))
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eq({0, {[""]=""}}, luaevalarg(mapsp(sp('string', '[""]'), '""')))
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end)
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it('issues an error in some cases', function()
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eq("Vim(call):E5100: Cannot convert given lua table: table should either have a sequence of positive integer keys or contain only string keys",
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exc_exec('call luaeval("{1, foo=2}")'))
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eq("Vim(call):E5101: Cannot convert given lua type",
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exc_exec('call luaeval("vim.api.nvim_buf_get_lines")'))
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startswith("Vim(call):E5107: Error loading lua [string \"luaeval()\"]:",
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exc_exec('call luaeval("1, 2, 3")'))
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startswith("Vim(call):E5108: Error executing lua [string \"luaeval()\"]:",
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exc_exec('call luaeval("(nil)()")'))
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eq("Vim(call):E5101: Cannot convert given lua type",
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exc_exec('call luaeval("{42, vim.api}")'))
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eq("Vim(call):E5101: Cannot convert given lua type",
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exc_exec('call luaeval("{foo=42, baz=vim.api}")'))
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-- The following should not crash: conversion error happens inside
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eq("Vim(call):E5101: Cannot convert given lua type",
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exc_exec('call luaeval("vim.api")'))
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-- The following should not show internal error
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eq("\nE5101: Cannot convert given lua type\n0",
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redir_exec('echo luaeval("vim.api")'))
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end)
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it('correctly converts containers with type_idx', function()
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eq(5, eval('type(luaeval("{[vim.type_idx]=vim.types.float, [vim.val_idx]=0}"))'))
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eq(4, eval([[type(luaeval('{[vim.type_idx]=vim.types.dictionary}'))]]))
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eq(3, eval([[type(luaeval('{[vim.type_idx]=vim.types.array}'))]]))
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eq({}, funcs.luaeval('{[vim.type_idx]=vim.types.array}'))
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-- Presence of type_idx makes Vim ignore some keys
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eq({42}, funcs.luaeval('{[vim.type_idx]=vim.types.array, [vim.val_idx]=10, [5]=1, foo=2, [1]=42}'))
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eq({foo=2}, funcs.luaeval('{[vim.type_idx]=vim.types.dictionary, [vim.val_idx]=10, [5]=1, foo=2, [1]=42}'))
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eq(10, funcs.luaeval('{[vim.type_idx]=vim.types.float, [vim.val_idx]=10, [5]=1, foo=2, [1]=42}'))
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-- The following should not crash
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eq({}, funcs.luaeval('{[vim.type_idx]=vim.types.dictionary}'))
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end)
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it('correctly converts self-containing containers', function()
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meths.set_var('l', {})
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eval('add(l, l)')
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eq(true, eval('luaeval("_A == _A[1]", l)'))
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eq(true, eval('luaeval("_A[1] == _A[1][1]", [l])'))
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eq(true, eval('luaeval("_A.d == _A.d[1]", {"d": l})'))
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eq(true, eval('luaeval("_A ~= _A[1]", [l])'))
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meths.set_var('d', {foo=42})
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eval('extend(d, {"d": d})')
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eq(true, eval('luaeval("_A == _A.d", d)'))
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eq(true, eval('luaeval("_A[1] == _A[1].d", [d])'))
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eq(true, eval('luaeval("_A.d == _A.d.d", {"d": d})'))
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eq(true, eval('luaeval("_A ~= _A.d", {"d": d})'))
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end)
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it('errors out correctly when doing incorrect things in lua', function()
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-- Conversion errors
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eq('Vim(call):E5108: Error executing lua [string "luaeval()"]:1: attempt to call field \'xxx_nonexistent_key_xxx\' (a nil value)',
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exc_exec([[call luaeval("vim.xxx_nonexistent_key_xxx()")]]))
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eq('Vim(call):E5108: Error executing lua [string "luaeval()"]:1: ERROR',
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exc_exec([[call luaeval("error('ERROR')")]]))
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eq('Vim(call):E5108: Error executing lua [NULL]',
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exc_exec([[call luaeval("error(nil)")]]))
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end)
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it('does not leak memory when called with too long line',
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function()
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local s = ('x'):rep(65536)
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eq('Vim(call):E5107: Error loading lua [string "luaeval()"]:1: unexpected symbol near \')\'',
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exc_exec([[call luaeval("(']] .. s ..[[' + )")]]))
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eq(s, funcs.luaeval('"' .. s .. '"'))
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end)
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end)
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describe('v:lua', function()
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before_each(function()
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exec_lua([[
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function _G.foo(a,b,n)
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_G.val = n
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return a+b
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end
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mymod = {}
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function mymod.noisy(name)
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vim.api.nvim_set_current_line("hey "..name)
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end
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function mymod.crashy()
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nonexistent()
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end
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function mymod.omni(findstart, base)
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if findstart == 1 then
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return 5
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else
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if base == 'st' then
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return {'stuff', 'steam', 'strange things'}
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end
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end
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end
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vim.api.nvim_buf_set_option(0, 'omnifunc', 'v:lua.mymod.omni')
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]])
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end)
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it('works in expressions', function()
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eq(7, eval('v:lua.foo(3,4,v:null)'))
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eq(true, exec_lua([[return _G.val == vim.NIL]]))
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eq(NIL, eval('v:lua.mymod.noisy("eval")'))
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eq("hey eval", meths.get_current_line())
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eq("Vim:E5108: Error executing lua [string \"<nvim>\"]:10: attempt to call global 'nonexistent' (a nil value)",
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pcall_err(eval, 'v:lua.mymod.crashy()'))
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end)
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it('works in :call', function()
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command(":call v:lua.mymod.noisy('command')")
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eq("hey command", meths.get_current_line())
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eq("Vim(call):E5108: Error executing lua [string \"<nvim>\"]:10: attempt to call global 'nonexistent' (a nil value)",
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pcall_err(command, 'call v:lua.mymod.crashy()'))
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end)
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it('works in func options', function()
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local screen = Screen.new(60, 8)
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screen:set_default_attr_ids({
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[1] = {bold = true, foreground = Screen.colors.Blue1},
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[2] = {background = Screen.colors.WebGray},
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[3] = {background = Screen.colors.LightMagenta},
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[4] = {bold = true},
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[5] = {bold = true, foreground = Screen.colors.SeaGreen4},
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})
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screen:attach()
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feed('isome st<c-x><c-o>')
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screen:expect{grid=[[
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some stuff^ |
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{1:~ }{2: stuff }{1: }|
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{1:~ }{3: steam }{1: }|
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{1:~ }{3: strange things }{1: }|
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{1:~ }|
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{1:~ }|
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{1:~ }|
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{4:-- Omni completion (^O^N^P) }{5:match 1 of 3} |
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]]}
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end)
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it('throw errors for invalid use', function()
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eq('Vim(let):E15: Invalid expression: v:lua.func', pcall_err(command, "let g:Func = v:lua.func"))
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eq('Vim(let):E15: Invalid expression: v:lua', pcall_err(command, "let g:Func = v:lua"))
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eq("Vim(let):E15: Invalid expression: v:['lua']", pcall_err(command, "let g:Func = v:['lua']"))
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eq("Vim:E15: Invalid expression: v:['lua'].foo()", pcall_err(eval, "v:['lua'].foo()"))
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eq("Vim(call):E461: Illegal variable name: v:['lua']", pcall_err(command, "call v:['lua'].baar()"))
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eq("Vim(let):E46: Cannot change read-only variable \"v:['lua']\"", pcall_err(command, "let v:['lua'] = 'xx'"))
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eq("Vim(let):E46: Cannot change read-only variable \"v:lua\"", pcall_err(command, "let v:lua = 'xx'"))
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end)
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end)
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