neovim/test/functional/core/fileio_spec.lua
2023-01-17 00:19:30 +01:00

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local lfs = require('lfs')
local helpers = require('test.functional.helpers')(after_each)
local assert_log = helpers.assert_log
local assert_nolog = helpers.assert_nolog
local clear = helpers.clear
local command = helpers.command
local eq = helpers.eq
local neq = helpers.neq
local ok = helpers.ok
local feed = helpers.feed
local funcs = helpers.funcs
local nvim_prog = helpers.nvim_prog
local request = helpers.request
local retry = helpers.retry
local rmdir = helpers.rmdir
local matches = helpers.matches
local mkdir = helpers.mkdir
local sleep = helpers.sleep
local read_file = helpers.read_file
local tmpname = helpers.tmpname
local trim = helpers.trim
local currentdir = helpers.funcs.getcwd
local assert_alive = helpers.assert_alive
local check_close = helpers.check_close
local expect_exit = helpers.expect_exit
local write_file = helpers.write_file
local Screen = require('test.functional.ui.screen')
local feed_command = helpers.feed_command
local skip = helpers.skip
local is_os = helpers.is_os
local is_ci = helpers.is_ci
describe('fileio', function()
before_each(function()
end)
after_each(function()
check_close()
os.remove('Xtest_startup_shada')
os.remove('Xtest_startup_file1')
os.remove('Xtest_startup_file1~')
os.remove('Xtest_startup_file2')
os.remove('Xtest_тест.md')
os.remove('Xtest-u8-int-max')
os.remove('Xtest-overwrite-forced')
rmdir('Xtest_startup_swapdir')
rmdir('Xtest_backupdir')
end)
it('fsync() codepaths #8304', function()
clear({ args={ '-i', 'Xtest_startup_shada',
'--cmd', 'set directory=Xtest_startup_swapdir' } })
-- These cases ALWAYS force fsync (regardless of 'fsync' option):
-- 1. Idle (CursorHold) with modified buffers (+ 'swapfile').
command('write Xtest_startup_file1')
feed('ifoo<esc>h')
command('write')
eq(0, request('nvim__stats').fsync) -- 'nofsync' is the default.
command('set swapfile')
command('set updatetime=1')
feed('izub<esc>h') -- File is 'modified'.
sleep(3) -- Allow 'updatetime' to expire.
retry(3, nil, function()
eq(1, request('nvim__stats').fsync)
end)
command('set updatetime=9999')
-- 2. Exit caused by deadly signal (+ 'swapfile').
local j = funcs.jobstart({ nvim_prog, '-u', 'NONE', '-i',
'Xtest_startup_shada', '--headless',
'-c', 'set swapfile',
'-c', 'write Xtest_startup_file2',
'-c', 'put =localtime()', })
sleep(10) -- Let Nvim start.
funcs.jobstop(j) -- Send deadly signal.
-- 3. SIGPWR signal.
-- ??
-- 4. Explicit :preserve command.
command('preserve')
eq(2, request('nvim__stats').fsync)
-- 5. Enable 'fsync' option, write file.
command('set fsync')
feed('ibaz<esc>h')
command('write')
eq(4, request('nvim__stats').fsync)
end)
it('backup #9709', function()
skip(is_ci('cirrus'))
clear({ args={ '-i', 'Xtest_startup_shada',
'--cmd', 'set directory=Xtest_startup_swapdir' } })
command('write Xtest_startup_file1')
feed('ifoo<esc>')
command('set backup')
command('set backupcopy=yes')
command('write')
feed('Abar<esc>')
command('write')
local foobar_contents = trim(read_file('Xtest_startup_file1'))
local bar_contents = trim(read_file('Xtest_startup_file1~'))
eq('foobar', foobar_contents);
eq('foo', bar_contents);
end)
it('backup with full path #11214', function()
skip(is_ci('cirrus'))
clear()
mkdir('Xtest_backupdir')
command('set backup')
command('set backupdir=Xtest_backupdir//')
command('write Xtest_startup_file1')
feed('ifoo<esc>')
command('write')
feed('Abar<esc>')
command('write')
-- Backup filename = fullpath, separators replaced with "%".
local backup_file_name = string.gsub(currentdir()..'/Xtest_startup_file1',
is_os('win') and '[:/\\]' or '/', '%%') .. '~'
local foo_contents = trim(read_file('Xtest_backupdir/'..backup_file_name))
local foobar_contents = trim(read_file('Xtest_startup_file1'))
eq('foobar', foobar_contents);
eq('foo', foo_contents);
end)
it('backup symlinked files #11349', function()
skip(is_ci('cirrus'))
clear()
local initial_content = 'foo'
local link_file_name = 'Xtest_startup_file2'
local backup_file_name = link_file_name .. '~'
write_file('Xtest_startup_file1', initial_content, false)
lfs.link('Xtest_startup_file1', link_file_name, true)
command('set backup')
command('set backupcopy=yes')
command('edit ' .. link_file_name)
feed('Abar<esc>')
command('write')
local backup_raw = read_file(backup_file_name)
neq(nil, backup_raw, "Expected backup file " .. backup_file_name .. "to exist but did not")
eq(initial_content, trim(backup_raw), 'Expected backup to contain original contents')
end)
it('backup symlinked files in first available backupdir #11349', function()
skip(is_ci('cirrus'))
clear()
local initial_content = 'foo'
local backup_dir = 'Xtest_backupdir'
local sep = helpers.get_pathsep()
local link_file_name = 'Xtest_startup_file2'
local backup_file_name = backup_dir .. sep .. link_file_name .. '~'
write_file('Xtest_startup_file1', initial_content, false)
lfs.link('Xtest_startup_file1', link_file_name, true)
mkdir(backup_dir)
command('set backup')
command('set backupcopy=yes')
command('set backupdir=.__this_does_not_exist__,' .. backup_dir)
command('edit ' .. link_file_name)
feed('Abar<esc>')
command('write')
local backup_raw = read_file(backup_file_name)
neq(nil, backup_raw, "Expected backup file " .. backup_file_name .. " to exist but did not")
eq(initial_content, trim(backup_raw), 'Expected backup to contain original contents')
end)
it('readfile() on multibyte filename #10586', function()
clear()
local text = {
'line1',
' ...line2... ',
'',
'line3!',
'тест yay тест.',
'',
}
local fname = 'Xtest_тест.md'
funcs.writefile(text, fname, 's')
table.insert(text, '')
eq(text, funcs.readfile(fname, 'b'))
end)
it('read invalid u8 over INT_MAX doesn\'t segfault', function()
clear()
command('call writefile(0zFFFFFFFF, "Xtest-u8-int-max")')
-- This should not segfault
command('edit ++enc=utf32 Xtest-u8-int-max')
assert_alive()
end)
it(':w! does not show "file has been changed" warning', function()
clear()
write_file("Xtest-overwrite-forced", 'foobar')
command('set nofixendofline')
local screen = Screen.new(40,4)
screen:set_default_attr_ids({
[1] = {bold = true, foreground = Screen.colors.Blue1},
[2] = {foreground = Screen.colors.Grey100, background = Screen.colors.Red},
[3] = {bold = true, foreground = Screen.colors.SeaGreen4}
})
screen:attach()
command("set shortmess-=F")
command("e Xtest-overwrite-forced")
screen:expect([[
^foobar |
{1:~ }|
{1:~ }|
"Xtest-overwrite-forced" [noeol] 1L, 6B |
]])
-- Get current unix time.
local cur_unix_time = os.time(os.date("!*t"))
local future_time = cur_unix_time + 999999
-- Set the file's access/update time to be
-- greater than the time at which it was created.
local uv = require("luv")
uv.fs_utime('Xtest-overwrite-forced', future_time, future_time)
-- use async feed_command because nvim basically hangs on the prompt
feed_command("w")
screen:expect([[
{2:WARNING: The file has been changed since}|
{2: reading it!!!} |
{3:Do you really want to write to it (y/n)^?}|
|
]])
feed("n")
feed("<cr>")
screen:expect([[
^foobar |
{1:~ }|
{1:~ }|
|
]])
-- Use a screen test because the warning does not set v:errmsg.
command("w!")
screen:expect([[
^foobar |
{1:~ }|
{1:~ }|
<erwrite-forced" [noeol] 1L, 6B written |
]])
end)
end)
describe('tmpdir', function()
local tmproot_pat = [=[.*[/\\]nvim%.[^/\\]+]=]
local testlog = 'Xtest_tmpdir_log'
local faketmp
before_each(function()
-- Fake /tmp dir so that we can mess it up.
faketmp = tmpname()
os.remove(faketmp)
mkdir(faketmp)
end)
after_each(function()
check_close()
os.remove(testlog)
end)
it('failure modes', function()
clear({ env={ NVIM_LOG_FILE=testlog, TMPDIR=faketmp, } })
assert_nolog('tempdir is not a directory', testlog)
assert_nolog('tempdir has invalid permissions', testlog)
-- Tempfiles typically look like: "…/nvim.<user>/xxx/0".
-- - "…/nvim.<user>/xxx/" is the per-process tmpdir, not shared with other Nvims.
-- - "…/nvim.<user>/" is the tmpdir root, shared by all Nvims (normally).
local tmproot = (funcs.tempname()):match(tmproot_pat)
ok(tmproot:len() > 4, 'tmproot like "nvim.foo"', tmproot)
-- Test how Nvim handles invalid tmpdir root (by hostile users or accidents).
--
-- "…/nvim.<user>/" is not a directory:
expect_exit(command, ':qall!')
rmdir(tmproot)
write_file(tmproot, '') -- Not a directory, vim_mktempdir() should skip it.
clear({ env={ NVIM_LOG_FILE=testlog, TMPDIR=faketmp, } })
matches(tmproot_pat, funcs.stdpath('run')) -- Tickle vim_mktempdir().
-- Assert that broken tmpdir root was handled.
assert_log('tempdir root not a directory', testlog, 100)
-- "…/nvim.<user>/" has wrong permissions:
skip(is_os('win'), 'TODO(justinmk): need setfperm/getfperm on Windows. #8244')
os.remove(testlog)
os.remove(tmproot)
mkdir(tmproot)
funcs.setfperm(tmproot, 'rwxr--r--') -- Invalid permissions, vim_mktempdir() should skip it.
clear({ env={ NVIM_LOG_FILE=testlog, TMPDIR=faketmp, } })
matches(tmproot_pat, funcs.stdpath('run')) -- Tickle vim_mktempdir().
-- Assert that broken tmpdir root was handled.
assert_log('tempdir root has invalid permissions', testlog, 100)
end)
it('too long', function()
local bigname = ('%s/%s'):format(faketmp, ('x'):rep(666))
mkdir(bigname)
clear({ env={ NVIM_LOG_FILE=testlog, TMPDIR=bigname, } })
matches(tmproot_pat, funcs.stdpath('run')) -- Tickle vim_mktempdir().
local len = (funcs.tempname()):len()
ok(len > 4 and len < 256, '4 < len < 256', tostring(len))
end)
end)