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-- Test for Vim overrides of lua built-ins
local helpers = require('test.functional.helpers')(after_each)
local Screen = require('test.functional.ui.screen')
local eq = helpers.eq
local NIL = helpers.NIL
local feed = helpers.feed
local clear = helpers.clear
local funcs = helpers.funcs
local meths = helpers.meths
local command = helpers.command
local write_file = helpers.write_file
local redir_exec = helpers.redir_exec
local screen
local fname = 'Xtest-functional-lua-overrides-luafile'
before_each(clear)
after_each(function()
os.remove(fname)
end)
describe('print', function()
it('returns nothing', function()
eq(NIL, funcs.luaeval('print("abc")'))
eq(0, funcs.luaeval('select("#", print("abc"))'))
end)
it('allows catching printed text with :execute', function()
eq('\nabc', funcs.execute('lua print("abc")'))
eq('\nabc', funcs.execute('luado print("abc")'))
eq('\nabc', funcs.execute('call luaeval("print(\'abc\')")'))
write_file(fname, 'print("abc")')
eq('\nabc', funcs.execute('luafile ' .. fname))
eq('\nabc', redir_exec('lua print("abc")'))
eq('\nabc', redir_exec('luado print("abc")'))
eq('\nabc', redir_exec('call luaeval("print(\'abc\')")'))
write_file(fname, 'print("abc")')
eq('\nabc', redir_exec('luafile ' .. fname))
end)
it('handles errors in __tostring', function()
write_file(fname, [[
local meta_nilerr = { __tostring = function() error(nil) end }
local meta_abcerr = { __tostring = function() error("abc") end }
local meta_tblout = { __tostring = function() return {"TEST"} end }
v_nilerr = setmetatable({}, meta_nilerr)
v_abcerr = setmetatable({}, meta_abcerr)
v_tblout = setmetatable({}, meta_tblout)
]])
eq('', redir_exec('luafile ' .. fname))
eq('\nE5114: Error while converting print argument #2: [NULL]',
redir_exec('lua print("foo", v_nilerr, "bar")'))
eq('\nE5114: Error while converting print argument #2: Xtest-functional-lua-overrides-luafile:2: abc',
redir_exec('lua print("foo", v_abcerr, "bar")'))
eq('\nE5114: Error while converting print argument #2: <Unknown error: lua_tolstring returned NULL for tostring result>',
redir_exec('lua print("foo", v_tblout, "bar")'))
end)
it('prints strings with NULs and NLs correctly', function()
meths.set_option('more', true)
eq('\nabc ^@ def\nghi^@^@^@jkl\nTEST\n\n\nT\n',
redir_exec([[lua print("abc \0 def\nghi\0\0\0jkl\nTEST\n\n\nT\n")]]))
eq('\nabc ^@ def\nghi^@^@^@jkl\nTEST\n\n\nT^@',
redir_exec([[lua print("abc \0 def\nghi\0\0\0jkl\nTEST\n\n\nT\0")]]))
eq('\nT^@', redir_exec([[lua print("T\0")]]))
eq('\nT\n', redir_exec([[lua print("T\n")]]))
end)
end)
describe('debug.debug', function()
before_each(function()
screen = Screen.new()
screen:attach()
screen:set_default_attr_ids({
[0] = {bold=true, foreground=255},
E = {foreground = Screen.colors.Grey100, background = Screen.colors.Red},
cr = {bold = true, foreground = Screen.colors.SeaGreen4},
})
end)
it('works', function()
command([[lua
function Test(a)
print(a)
debug.debug()
print(a * 100)
end
]])
feed(':lua Test()\n')
screen:expect([[
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
nil |
lua_debug> ^ |
]])
feed('print("TEST")\n')
screen:expect([[
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
nil |
lua_debug> print("TEST") |
TEST |
lua_debug> ^ |
]])
feed('<C-c>')
screen:expect([[
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
nil |
lua_debug> print("TEST") |
TEST |
|
{E:E5105: Error while calling lua chunk: [string "<VimL }|
{E:compiled string>"]:5: attempt to perform arithmetic o}|
{E:n local 'a' (a nil value)} |
Interrupt: {cr:Press ENTER or type command to continue}^ |
]])
feed('<C-l>:lua Test()\n')
screen:expect([[
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
nil |
lua_debug> ^ |
]])
feed('\n')
screen:expect([[
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
nil |
lua_debug> |
{E:E5105: Error while calling lua chunk: [string "<VimL }|
{E:compiled string>"]:5: attempt to perform arithmetic o}|
{E:n local 'a' (a nil value)} |
{cr:Press ENTER or type command to continue}^ |
]])
end)
end)
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