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-rw-r--r--test/unit/os/fs_spec.lua218
1 files changed, 200 insertions, 18 deletions
diff --git a/test/unit/os/fs_spec.lua b/test/unit/os/fs_spec.lua
index 857a5001f1..54f5a99902 100644
--- a/test/unit/os/fs_spec.lua
+++ b/test/unit/os/fs_spec.lua
@@ -17,6 +17,10 @@ local NULL = helpers.NULL
local NODE_NORMAL = 0
local NODE_WRITABLE = 1
+local function ok(expr)
+ assert.is_true(expr)
+end
+
cimport('unistd.h')
cimport('./src/nvim/os/shell.h')
cimport('./src/nvim/option_defs.h')
@@ -150,11 +154,11 @@ describe('fs function', function()
local function os_can_exe(name)
local buf = ffi.new('char *[1]')
buf[0] = NULL
- local ok = fs.os_can_exe(to_cstr(name), buf, true)
+ local ce_ret = fs.os_can_exe(to_cstr(name), buf, true)
-- When os_can_exe returns true, it must set the path.
-- When it returns false, the path must be NULL.
- if ok then
+ if ce_ret then
neq(NULL, buf[0])
return internalize(buf[0])
else
@@ -368,6 +372,44 @@ describe('fs function', function()
local function os_open(path, flags, mode)
return fs.os_open((to_cstr(path)), flags, mode)
end
+ local function os_close(fd)
+ return fs.os_close(fd)
+ end
+ local function os_read(fd, size)
+ local buf = nil
+ if size == nil then
+ size = 0
+ else
+ buf = ffi.new('char[?]', size, ('\0'):rep(size))
+ end
+ local eof = ffi.new('bool[?]', 1, {true})
+ local ret2 = fs.os_read(fd, eof, buf, size)
+ local ret1 = eof[0]
+ local ret3 = ''
+ if buf ~= nil then
+ ret3 = ffi.string(buf, size)
+ end
+ return ret1, ret2, ret3
+ end
+ local function os_readv(fd, sizes)
+ local bufs = {}
+ for i, size in ipairs(sizes) do
+ bufs[i] = {
+ iov_base=ffi.new('char[?]', size, ('\0'):rep(size)),
+ iov_len=size,
+ }
+ end
+ local iov = ffi.new('struct iovec[?]', #sizes, bufs)
+ local eof = ffi.new('bool[?]', 1, {true})
+ local ret2 = fs.os_readv(fd, eof, iov, #sizes)
+ local ret1 = eof[0]
+ local ret3 = {}
+ for i = 1,#sizes do
+ -- Warning: iov may not be used.
+ ret3[i] = ffi.string(bufs[i].iov_base, bufs[i].iov_len)
+ end
+ return ret1, ret2, ret3
+ end
describe('os_file_exists', function()
it('returns false when given a non-existing file', function()
@@ -432,30 +474,34 @@ describe('fs function', function()
end)
describe('os_open', function()
+ local new_file = 'test_new_file'
+ local existing_file = 'unit-test-directory/test_existing.file'
+
before_each(function()
- io.open('unit-test-directory/test_existing.file', 'w').close()
+ (io.open(existing_file, 'w')):close()
end)
after_each(function()
- os.remove('unit-test-directory/test_existing.file')
- os.remove('test_new_file')
+ os.remove(existing_file)
+ os.remove(new_file)
end)
- local new_file = 'test_new_file'
- local existing_file = 'unit-test-directory/test_existing.file'
-
it('returns UV_ENOENT for O_RDWR on a non-existing file', function()
eq(ffi.C.UV_ENOENT, (os_open('non-existing-file', ffi.C.kO_RDWR, 0)))
end)
- it('returns non-negative for O_CREAT on a non-existing file', function()
+ it('returns non-negative for O_CREAT on a non-existing file which then can be closed', function()
assert_file_does_not_exist(new_file)
- assert.is_true(0 <= (os_open(new_file, ffi.C.kO_CREAT, 0)))
+ local fd = os_open(new_file, ffi.C.kO_CREAT, 0)
+ assert.is_true(0 <= fd)
+ eq(0, os_close(fd))
end)
- it('returns non-negative for O_CREAT on a existing file', function()
+ it('returns non-negative for O_CREAT on a existing file which then can be closed', function()
assert_file_exists(existing_file)
- assert.is_true(0 <= (os_open(existing_file, ffi.C.kO_CREAT, 0)))
+ local fd = os_open(existing_file, ffi.C.kO_CREAT, 0)
+ assert.is_true(0 <= fd)
+ eq(0, os_close(fd))
end)
it('returns UV_EEXIST for O_CREAT|O_EXCL on a existing file', function()
@@ -463,24 +509,160 @@ describe('fs function', function()
eq(ffi.C.kUV_EEXIST, (os_open(existing_file, (bit.bor(ffi.C.kO_CREAT, ffi.C.kO_EXCL)), 0)))
end)
- it('sets `rwx` permissions for O_CREAT 700', function()
+ it('sets `rwx` permissions for O_CREAT 700 which then can be closed', function()
assert_file_does_not_exist(new_file)
--create the file
- os_open(new_file, ffi.C.kO_CREAT, tonumber("700", 8))
+ local fd = os_open(new_file, ffi.C.kO_CREAT, tonumber("700", 8))
--verify permissions
eq('rwx------', lfs.attributes(new_file)['permissions'])
+ eq(0, os_close(fd))
end)
- it('sets `rw` permissions for O_CREAT 600', function()
+ it('sets `rw` permissions for O_CREAT 600 which then can be closed', function()
assert_file_does_not_exist(new_file)
--create the file
- os_open(new_file, ffi.C.kO_CREAT, tonumber("600", 8))
+ local fd = os_open(new_file, ffi.C.kO_CREAT, tonumber("600", 8))
--verify permissions
eq('rw-------', lfs.attributes(new_file)['permissions'])
+ eq(0, os_close(fd))
+ end)
+
+ it('returns a non-negative file descriptor for an existing file which then can be closed', function()
+ local fd = os_open(existing_file, ffi.C.kO_RDWR, 0)
+ assert.is_true(0 <= fd)
+ eq(0, os_close(fd))
+ end)
+ end)
+
+ describe('os_close', function()
+ it('returns EBADF for negative file descriptors', function()
+ eq(ffi.C.UV_EBADF, os_close(-1))
+ eq(ffi.C.UV_EBADF, os_close(-1000))
+ end)
+ end)
+
+ describe('os_read', function()
+ local file = 'test-unit-os-fs_spec-os_read.dat'
+
+ local s = ''
+ for i = 0, 255 do
+ s = s .. (i == 0 and '\0' or ('%c'):format(i))
+ end
+ local fcontents = s:rep(16)
+
+ before_each(function()
+ local f = io.open(file, 'w')
+ f:write(fcontents)
+ f:close()
+ end)
+
+ after_each(function()
+ os.remove(file)
+ end)
+
+ it('can read zero bytes from a file', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, 0, ''}, {os_read(fd, nil)})
+ eq({false, 0, ''}, {os_read(fd, 0)})
+ eq(0, os_close(fd))
+ end)
+
+ it('can read from a file multiple times', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, 2, '\000\001'}, {os_read(fd, 2)})
+ eq({false, 2, '\002\003'}, {os_read(fd, 2)})
+ eq(0, os_close(fd))
+ end)
+
+ it('can read the whole file at once and then report eof', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, #fcontents, fcontents}, {os_read(fd, #fcontents)})
+ eq({true, 0, ('\0'):rep(#fcontents)}, {os_read(fd, #fcontents)})
+ eq(0, os_close(fd))
+ end)
+
+ it('can read the whole file in two calls, one partially', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, #fcontents * 3/4, fcontents:sub(1, #fcontents * 3/4)},
+ {os_read(fd, #fcontents * 3/4)})
+ eq({true,
+ (#fcontents * 1/4),
+ fcontents:sub(#fcontents * 3/4 + 1) .. ('\0'):rep(#fcontents * 2/4)},
+ {os_read(fd, #fcontents * 3/4)})
+ eq(0, os_close(fd))
+ end)
+ end)
+
+ describe('os_readv', function()
+ -- Function may be absent
+ if not pcall(function() return fs.os_readv end) then
+ return
+ end
+ local file = 'test-unit-os-fs_spec-os_readv.dat'
+
+ local s = ''
+ for i = 0, 255 do
+ s = s .. (i == 0 and '\0' or ('%c'):format(i))
+ end
+ local fcontents = s:rep(16)
+
+ before_each(function()
+ local f = io.open(file, 'w')
+ f:write(fcontents)
+ f:close()
end)
- it('returns a non-negative file descriptor for an existing file', function()
- assert.is_true(0 <= (os_open(existing_file, ffi.C.kO_RDWR, 0)))
+ after_each(function()
+ os.remove(file)
+ end)
+
+ it('can read zero bytes from a file', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, 0, {}}, {os_readv(fd, {})})
+ eq({false, 0, {'', '', ''}}, {os_readv(fd, {0, 0, 0})})
+ eq(0, os_close(fd))
+ end)
+
+ it('can read from a file multiple times to a differently-sized buffers', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, 2, {'\000\001'}}, {os_readv(fd, {2})})
+ eq({false, 5, {'\002\003', '\004\005\006'}}, {os_readv(fd, {2, 3})})
+ eq(0, os_close(fd))
+ end)
+
+ it('can read the whole file at once and then report eof', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false,
+ #fcontents,
+ {fcontents:sub(1, #fcontents * 1/4),
+ fcontents:sub(#fcontents * 1/4 + 1, #fcontents * 3/4),
+ fcontents:sub(#fcontents * 3/4 + 1, #fcontents * 15/16),
+ fcontents:sub(#fcontents * 15/16 + 1, #fcontents)}},
+ {os_readv(fd, {#fcontents * 1/4,
+ #fcontents * 2/4,
+ #fcontents * 3/16,
+ #fcontents * 1/16})})
+ eq({true, 0, {'\0'}}, {os_readv(fd, {1})})
+ eq(0, os_close(fd))
+ end)
+
+ it('can read the whole file in two calls, one partially', function()
+ local fd = os_open(file, ffi.C.kO_RDONLY, 0)
+ ok(fd >= 0)
+ eq({false, #fcontents * 3/4, {fcontents:sub(1, #fcontents * 3/4)}},
+ {os_readv(fd, {#fcontents * 3/4})})
+ eq({true,
+ (#fcontents * 1/4),
+ {fcontents:sub(#fcontents * 3/4 + 1) .. ('\0'):rep(#fcontents * 2/4)}},
+ {os_readv(fd, {#fcontents * 3/4})})
+ eq(0, os_close(fd))
end)
end)
generated by cgit (git 2.34.1) at 2025-05-20 16:19:56 +0000