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lfs_spec.lua
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lfs_spec.lua
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local ffi = require('ffi')
local vanilla_lfs = require('lfs')
local lfs = require('./lfs_ffi')
local eq = assert.are.same
local is_nil = assert.is_nil
local is_not_nil = assert.is_not_nil
local is_true = assert.is_true
local has_error = assert.has_error
local posix = ffi.os ~= 'Windows'
local attr_names = {
'access',
'change',
'dev',
'gid',
'ino',
'mode',
'modification',
'nlink',
'permissions',
'rdev',
'size',
'uid'
}
if posix then
local extra_attrs = {'blksize', 'blocks'}
for i = 1, #extra_attrs do
table.insert(attr_names, extra_attrs[i])
end
end
describe('lfs', function()
describe('#attributes', function()
it('without argument', function()
local info = lfs.attributes('.')
eq(vanilla_lfs.attributes('.'), info)
end)
it('with attribute name', function()
for i = 1, #attr_names do
local attr = attr_names[i]
local info = lfs.attributes('.', attr)
eq(vanilla_lfs.attributes('.', attr), info,
attr..' is not equal')
end
end)
it('with attributes table', function()
local tab = {"table", "for", "attributes"}
local info = lfs.attributes('.', tab)
eq(vanilla_lfs.attributes('.', tab), info)
end)
it('with nonexisted file', function()
local info, err = lfs.attributes('nonexisted')
is_nil(info)
eq('No such file or directory', err)
end)
it('with nonexisted attribute', function()
has_error(function() lfs.attributes('.', 'nonexisted') end,
"invalid attribute name 'nonexisted'")
if not posix then
has_error(function() lfs.attributes('.', 'blocks') end,
"invalid attribute name 'blocks'")
end
end)
end)
describe('#symlinkattributes', function()
local symlink = 'lfs_ffi.lua.link'
it('link failed', function()
if posix then
local res, err = lfs.link('xxx', symlink)
is_nil(res)
eq(err, 'No such file or directory')
end
end)
it('hard link', function()
local _, err = lfs.link('lfs_ffi.lua', symlink)
is_nil(err)
eq(vanilla_lfs.attributes(symlink, 'mode'), 'file')
eq(vanilla_lfs.symlinkattributes(symlink, 'mode'), 'file')
end)
it('soft link', function()
if posix then
local _, err = lfs.link('lfs_ffi.lua', symlink, true)
is_nil(err)
eq(vanilla_lfs.attributes(symlink, 'mode'), 'file')
eq(vanilla_lfs.symlinkattributes(symlink, 'mode'), 'link')
end
end)
it('without argument', function()
lfs.link('lfs_ffi.lua', symlink, true)
local info = lfs.symlinkattributes(symlink)
local expected_info = vanilla_lfs.symlinkattributes(symlink)
for k, v in pairs(expected_info) do
eq(v, info[k], k..'is not equal')
end
end)
it('with attribute name', function()
lfs.link('lfs_ffi.lua', symlink, true)
for i = 1, #attr_names do
local attr = attr_names[i]
local info = lfs.symlinkattributes(symlink, attr)
eq(vanilla_lfs.symlinkattributes(symlink, attr), info,
attr..' is not equal')
end
end)
it('add target field', function()
if posix then
lfs.link('lfs_ffi.lua', symlink, true)
eq('lfs_ffi.lua', lfs.symlinkattributes(symlink, 'target'))
eq('lfs_ffi.lua', lfs.symlinkattributes(symlink).target)
end
end)
after_each(function()
os.remove(symlink)
end)
end)
describe('#setmode', function()
local fh
before_each(function()
fh = io.open('lfs_ffi.lua')
end)
it('setmode', function()
local ok, mode = lfs.setmode(fh, 'binary')
is_true(ok)
if posix then
-- On posix platform, always return 'binary'
eq('binary', mode)
else
eq( 'text', mode)
local _
_, mode = lfs.setmode(fh, 'text')
eq('binary', mode)
end
end)
if not posix then
it('setmode incorrect mode', function()
has_error(function() lfs.setmode(fh, 'bin') end, 'setmode: invalid mode')
end)
it('setmode incorrect file', function()
has_error(function() lfs.setmode('file', 'binary') end, 'setmode: invalid file')
end)
end
end)
describe('#dir', function()
it('mkdir', function()
lfs.mkdir('test')
end)
it('return err if mkdir failed', function()
local res, err = lfs.mkdir('test')
is_nil(res)
eq('File exists', err)
end)
it('raise error if open dir failed', function()
if posix then
has_error(function() lfs.dir('nonexisted') end,
"cannot open nonexisted : No such file or directory")
else
-- Like vanilla lfs, we only check path's length in Windows
local ok, msg = pcall(function() lfs.dir(('12345'):rep(64)) end)
is_true(not ok)
is_not_nil(msg:find('path too long'))
end
end)
if posix or os.getenv('CI') ~= 'True' then
it('iterate dir', function()
local _, dir_obj = lfs.dir('test')
local names = {}
while true do
local name = dir_obj:next()
if not name then break end
names[#names + 1] = name
end
table.sort(names)
eq({'.', '..'}, names)
is_true(dir_obj.closed)
end)
it('iterate dir via iterator', function()
local iter, dir_obj = lfs.dir('test')
local names = {}
while true do
local name = iter(dir_obj)
if not name then break end
names[#names + 1] = name
end
table.sort(names)
eq({'.', '..'}, names)
is_true(dir_obj.closed)
end)
end
it('close', function()
local _, dir_obj = lfs.dir('.')
dir_obj:close()
has_error(function() dir_obj:next() end, "closed directory")
end)
it('chdir and currentdir', function()
lfs.chdir('test')
local cur_dir = lfs.currentdir()
lfs.chdir('..')
assert.is_not_nil(cur_dir:find('test$'))
end)
it('return err if chdir failed', function()
local res, err = lfs.chdir('nonexisted')
is_nil(res)
eq('No such file or directory', err)
end)
it('rmdir', function()
lfs.rmdir('test')
end)
it('return err if rmdir failed', function()
local res, err = lfs.rmdir('test')
is_nil(res)
eq('No such file or directory', err)
end)
end)
describe('#touch', function()
local touched = 'temp'
before_each(function()
local f = io.open(touched, 'w')
f:write('a')
f:close()
end)
after_each(function()
os.remove(touched)
end)
it('touch failed', function()
local _, err = lfs.touch('nonexisted', 1)
eq('No such file or directory', err)
end)
it('set atime', function()
local _, err = lfs.touch(touched, 1)
is_nil(err)
eq(vanilla_lfs.attributes(touched, 'access'), 1)
end)
it('set both atime and mtime', function()
local _, err = lfs.touch(touched, 1, 2)
is_nil(err)
eq(vanilla_lfs.attributes(touched, 'access'), 1)
eq(vanilla_lfs.attributes(touched, 'modification'), 2)
end)
end)
-- Just smoke testing
describe('#lock', function()
local fh
setup(function()
fh = io.open('temp.txt', 'w')
fh:write('1234567890')
fh:close()
end)
before_each(function()
fh = io.open('temp.txt', 'r+')
end)
it('lock', function()
local _, err = lfs.lock(fh, 'r', 2, 8)
is_nil(err)
end)
it('lock exclusively', function()
if posix then
local _, err = lfs.lock(fh, 'w')
is_nil(err)
end
end)
it('lock: invalid mode', function()
has_error(function() lfs.lock('temp.txt', 'u') end, 'lock: invalid mode')
end)
it('lock: invalid file', function()
has_error(function() lfs.lock('temp.txt', 'w') end, 'lock: invalid file')
end)
it('unlock', function()
local _, err = lfs.lock(fh, 'w', 4, 9)
is_nil(err)
if posix then
_, err = lfs.unlock(fh, 3, 11)
is_nil(err)
else
_, err = lfs.unlock(fh, 3, 11)
eq('Permission denied', err)
_, err = lfs.unlock(fh, 4, 9)
is_nil(err)
end
end)
it('unlock: invalid file', function()
has_error(function() lfs.unlock('temp.txt') end, 'unlock: invalid file')
end)
after_each(function()
fh:close()
end)
teardown(function()
os.remove('temp.txt')
end)
end)
describe('#lock_dir', function()
it('lock_dir', function()
if true then
local _, err = lfs.lock_dir('.')
is_nil(err)
_, err = lfs.lock_dir('.')
assert.is_not_nil(err)
end
-- The old lock should be free during gc
collectgarbage()
local lock = lfs.lock_dir('.')
lock:free()
local _, err = lfs.lock_dir('.')
is_nil(err)
end)
end)
end)