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| -rw-r--r-- | tests/test-suite/tpack.js | 693 |
1 files changed, 693 insertions, 0 deletions
diff --git a/tests/test-suite/tpack.js b/tests/test-suite/tpack.js new file mode 100644 index 0000000..530c421 --- /dev/null +++ b/tests/test-suite/tpack.js @@ -0,0 +1,693 @@ +"use strict"; + +const test = require('tape'); + +global.WEB = false; + +const lua = require('../../src/lua.js'); +const lauxlib = require('../../src/lauxlib.js'); +const lualib = require('../../src/lualib.js'); + + +const prefix = ` + local pack = string.pack + local packsize = string.packsize + local unpack = string.unpack + + function checkerror (msg, f, ...) + local status, err = pcall(f, ...) + -- print(status, err, msg) + assert(not status and string.find(err, msg)) + end + + local NB = 16 +`; + +test("[test-suite] tpack: maximum size for integers", function (t) { + let luaCode = ` + local sizeshort = packsize("h") + local sizeint = packsize("i") + local sizelong = packsize("l") + local sizesize_t = packsize("T") + local sizeLI = packsize("j") + local sizefloat = packsize("f") + local sizedouble = packsize("d") + local sizenumber = packsize("n") + local little = (pack("i2", 1) == "\\1\\0") + local align = packsize("!xXi16") + + assert(1 <= sizeshort and sizeshort <= sizeint and sizeint <= sizelong and + sizefloat <= sizedouble) + + print("platform:") + print(string.format( + "\\tshort %d, int %d, long %d, size_t %d, float %d, double %d,\\n\\z + \\tlua Integer %d, lua Number %d", + sizeshort, sizeint, sizelong, sizesize_t, sizefloat, sizedouble, + sizeLI, sizenumber)) + print("\\t" .. (little and "little" or "big") .. " endian") + print("\\talignment: " .. align) + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: minimum behavior for integer formats", function (t) { + let luaCode = ` + assert(unpack("B", pack("B", 0xff)) == 0xff) + assert(unpack("b", pack("b", 0x7f)) == 0x7f) + assert(unpack("b", pack("b", -0x80)) == -0x80) + + assert(unpack("H", pack("H", 0xffff)) == 0xffff) + assert(unpack("h", pack("h", 0x7fff)) == 0x7fff) + assert(unpack("h", pack("h", -0x8000)) == -0x8000) + + assert(unpack("L", pack("L", 0xffffffff)) == 0xffffffff) + assert(unpack("l", pack("l", 0x7fffffff)) == 0x7fffffff) + assert(unpack("l", pack("l", -0x80000000)) == -0x80000000) + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: minimum behavior for integer formats", function (t) { + let luaCode = ` + for i = 1, NB do + -- small numbers with signal extension ("\\xFF...") + local s = string.rep("\\xff", i) + assert(pack("i" .. i, -1) == s) + assert(packsize("i" .. i) == #s) + assert(unpack("i" .. i, s) == -1) + + -- small unsigned number ("\\0...\\xAA") + s = "\\xAA" .. string.rep("\\0", i - 1) + assert(pack("<I" .. i, 0xAA) == s) + assert(unpack("<I" .. i, s) == 0xAA) + assert(pack(">I" .. i, 0xAA) == s:reverse()) + assert(unpack(">I" .. i, s:reverse()) == 0xAA) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: minimum behavior for integer formats", function (t) { + let luaCode = ` + do + local lnum = 0x13121110090807060504030201 + local s = pack("<j", lnum) + assert(unpack("<j", s) == lnum) + assert(unpack("<i" .. sizeLI + 1, s .. "\\0") == lnum) + assert(unpack("<i" .. sizeLI + 1, s .. "\\0") == lnum) + + for i = sizeLI + 1, NB do + local s = pack("<j", -lnum) + assert(unpack("<j", s) == -lnum) + -- strings with (correct) extra bytes + assert(unpack("<i" .. i, s .. ("\\xFF"):rep(i - sizeLI)) == -lnum) + assert(unpack(">i" .. i, ("\\xFF"):rep(i - sizeLI) .. s:reverse()) == -lnum) + assert(unpack("<I" .. i, s .. ("\\0"):rep(i - sizeLI)) == -lnum) + + -- overflows + checkerror("does not fit", unpack, "<I" .. i, ("\\x00"):rep(i - 1) .. "\\1") + checkerror("does not fit", unpack, ">i" .. i, "\\1" .. ("\\x00"):rep(i - 1)) + end + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: minimum behavior for integer formats", function (t) { + let luaCode = ` + for i = 1, sizeLI do + local lstr = "\\1\\2\\3\\4\\5\\6\\7\\8\\9\\10\\11\\12\\13" + local lnum = 0x13121110090807060504030201 + local n = lnum & (~(-1 << (i * 8))) + local s = string.sub(lstr, 1, i) + assert(pack("<i" .. i, n) == s) + assert(pack(">i" .. i, n) == s:reverse()) + assert(unpack(">i" .. i, s:reverse()) == n) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: sign extension", function (t) { + let luaCode = ` + do + local u = 0xf0 + for i = 1, sizeLI - 1 do + assert(unpack("<i"..i, "\\xf0"..("\\xff"):rep(i - 1)) == -16) + assert(unpack(">I"..i, "\\xf0"..("\\xff"):rep(i - 1)) == u) + u = u * 256 + 0xff + end + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: mixed endianness", function (t) { + let luaCode = ` + do + assert(pack(">i2 <i2", 10, 20) == "\\0\\10\\20\\0") + local a, b = unpack("<i2 >i2", "\\10\\0\\0\\20") + assert(a == 10 and b == 20) + assert(pack("=i4", 2001) == pack("i4", 2001)) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: testing invalid formats", function (t) { + let luaCode = ` + checkerror("out of limits", pack, "i0", 0) + checkerror("out of limits", pack, "i" .. NB + 1, 0) + checkerror("out of limits", pack, "!" .. NB + 1, 0) + checkerror("%(17%) out of limits %[1,16%]", pack, "Xi" .. NB + 1) + checkerror("invalid format option 'r'", pack, "i3r", 0) + checkerror("16%-byte integer", unpack, "i16", string.rep('\\3', 16)) + checkerror("not power of 2", pack, "!4i3", 0); + checkerror("missing size", pack, "c", "") + checkerror("variable%-length format", packsize, "s") + checkerror("variable%-length format", packsize, "z") + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: overflow in option size (error will be in digit after limit)", function (t) { + let luaCode = ` + checkerror("invalid format", packsize, "c1" .. string.rep("0", 40)) + + if packsize("i") == 4 then + -- result would be 2^31 (2^3 repetitions of 2^28 strings) + local s = string.rep("c268435456", 2^3) + checkerror("too large", packsize, s) + -- one less is OK + s = string.rep("c268435456", 2^3 - 1) .. "c268435455" + assert(packsize(s) == 0x7fffffff) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: overflow in packing)", function (t) { + let luaCode = ` + for i = 1, sizeLI - 1 do + local umax = (1 << (i * 8)) - 1 + local max = umax >> 1 + local min = ~max + checkerror("overflow", pack, "<I" .. i, -1) + checkerror("overflow", pack, "<I" .. i, min) + checkerror("overflow", pack, ">I" .. i, umax + 1) + + checkerror("overflow", pack, ">i" .. i, umax) + checkerror("overflow", pack, ">i" .. i, max + 1) + checkerror("overflow", pack, "<i" .. i, min - 1) + + assert(unpack(">i" .. i, pack(">i" .. i, max)) == max) + assert(unpack("<i" .. i, pack("<i" .. i, min)) == min) + assert(unpack(">I" .. i, pack(">I" .. i, umax)) == umax) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: Lua integer size)", function (t) { + let luaCode = ` + for i = 1, sizeLI - 1 do + assert(unpack(">j", pack(">j", math.maxinteger)) == math.maxinteger) + assert(unpack("<j", pack("<j", math.mininteger)) == math.mininteger) + assert(unpack("<J", pack("<j", -1)) == -1) -- maximum unsigned integer + + if little then + assert(pack("f", 24) == pack("<f", 24)) + else + assert(pack("f", 24) == pack(">f", 24)) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: testing pack/unpack of floating-point numbers", function (t) { + let luaCode = ` + for _, n in ipairs{0, -1.1, 1.9, 1/0, -1/0, 1e20, -1e20, 0.1, 2000.7} do + assert(unpack("n", pack("n", n)) == n) + assert(unpack("<n", pack("<n", n)) == n) + assert(unpack(">n", pack(">n", n)) == n) + assert(pack("<f", n) == pack(">f", n):reverse()) + assert(pack(">d", n) == pack("<d", n):reverse()) + end + + -- for non-native precisions, test only with "round" numbers + for _, n in ipairs{0, -1.5, 1/0, -1/0, 1e10, -1e9, 0.5, 2000.25} do + assert(unpack("<f", pack("<f", n)) == n) + assert(unpack(">f", pack(">f", n)) == n) + assert(unpack("<d", pack("<d", n)) == n) + assert(unpack(">d", pack(">d", n)) == n) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: testing pack/unpack of strings", function (t) { + let luaCode = ` + do + local s = string.rep("abc", 1000) + assert(pack("zB", s, 247) == s .. "\\0\\xF7") + local s1, b = unpack("zB", s .. "\\0\\xF9") + assert(b == 249 and s1 == s) + s1 = pack("s", s) + assert(unpack("s", s1) == s) + + checkerror("does not fit", pack, "s1", s) + + checkerror("contains zeros", pack, "z", "alo\\0"); + + for i = 2, NB do + local s1 = pack("s" .. i, s) + assert(unpack("s" .. i, s1) == s and #s1 == #s + i) + end + end + + do + local x = pack("s", "alo") + checkerror("too short", unpack, "s", x:sub(1, -2)) + checkerror("too short", unpack, "c5", "abcd") + checkerror("out of limits", pack, "s100", "alo") + end + + do + assert(pack("c0", "") == "") + assert(packsize("c0") == 0) + assert(unpack("c0", "") == "") + assert(pack("<! c3", "abc") == "abc") + assert(packsize("<! c3") == 3) + assert(pack(">!4 c6", "abcdef") == "abcdef") + assert(pack("c3", "123") == "123") + assert(pack("c0", "") == "") + assert(pack("c8", "123456") == "123456\\0\\0") + assert(pack("c88", "") == string.rep("\\0", 88)) + assert(pack("c188", "ab") == "ab" .. string.rep("\\0", 188 - 2)) + local a, b, c = unpack("!4 z c3", "abcdefghi\\0xyz") + assert(a == "abcdefghi" and b == "xyz" and c == 14) + checkerror("longer than", pack, "c3", "1234") + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: testing multiple types and sequence", function (t) { + let luaCode = ` + do + local x = pack("<b h b f d f n i", 1, 2, 3, 4, 5, 6, 7, 8) + assert(#x == packsize("<b h b f d f n i")) + local a, b, c, d, e, f, g, h = unpack("<b h b f d f n i", x) + assert(a == 1 and b == 2 and c == 3 and d == 4 and e == 5 and f == 6 and + g == 7 and h == 8) + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: testing alignment", function (t) { + let luaCode = ` + do + assert(pack(" < i1 i2 ", 2, 3) == "\\2\\3\\0") -- no alignment by default + local x = pack(">!8 b Xh i4 i8 c1 Xi8", -12, 100, 200, "\\xEC") + assert(#x == packsize(">!8 b Xh i4 i8 c1 Xi8")) + assert(x == "\\xf4" .. "\\0\\0\\0" .. + "\\0\\0\\0\\100" .. + "\\0\\0\\0\\0\\0\\0\\0\\xC8" .. + "\\xEC" .. "\\0\\0\\0\\0\\0\\0\\0") + local a, b, c, d, pos = unpack(">!8 c1 Xh i4 i8 b Xi8 XI XH", x) + assert(a == "\\xF4" and b == 100 and c == 200 and d == -20 and (pos - 1) == #x) + + x = pack(">!4 c3 c4 c2 z i4 c5 c2 Xi4", + "abc", "abcd", "xz", "hello", 5, "world", "xy") + assert(x == "abcabcdxzhello\\0\\0\\0\\0\\0\\5worldxy\\0") + local a, b, c, d, e, f, g, pos = unpack(">!4 c3 c4 c2 z i4 c5 c2 Xh Xi4", x) + assert(a == "abc" and b == "abcd" and c == "xz" and d == "hello" and + e == 5 and f == "world" and g == "xy" and (pos - 1) % 4 == 0) + + x = pack(" b b Xd b Xb x", 1, 2, 3) + assert(packsize(" b b Xd b Xb x") == 4) + assert(x == "\\1\\2\\3\\0") + a, b, c, pos = unpack("bbXdb", x) + assert(a == 1 and b == 2 and c == 3 and pos == #x) + + -- only alignment + assert(packsize("!8 xXi8") == 8) + local pos = unpack("!8 xXi8", "0123456701234567"); assert(pos == 9) + assert(packsize("!8 xXi2") == 2) + local pos = unpack("!8 xXi2", "0123456701234567"); assert(pos == 3) + assert(packsize("!2 xXi2") == 2) + local pos = unpack("!2 xXi2", "0123456701234567"); assert(pos == 3) + assert(packsize("!2 xXi8") == 2) + local pos = unpack("!2 xXi8", "0123456701234567"); assert(pos == 3) + assert(packsize("!16 xXi16") == 16) + local pos = unpack("!16 xXi16", "0123456701234567"); assert(pos == 17) + + checkerror("invalid next option", pack, "X") + checkerror("invalid next option", unpack, "XXi", "") + checkerror("invalid next option", unpack, "X i", "") + checkerror("invalid next option", pack, "Xc1") + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); + + +test("[test-suite] tpack: testing initial position", function (t) { + let luaCode = ` + do + local x = pack("i4i4i4i4", 1, 2, 3, 4) + for pos = 1, 16, 4 do + local i, p = unpack("i4", x, pos) + assert(i == pos//4 + 1 and p == pos + 4) + end + + -- with alignment + for pos = 0, 12 do -- will always round position to power of 2 + local i, p = unpack("!4 i4", x, pos + 1) + assert(i == (pos + 3)//4 + 1 and p == i*4 + 1) + end + + -- negative indices + local i, p = unpack("!4 i4", x, -4) + assert(i == 4 and p == 17) + local i, p = unpack("!4 i4", x, -7) + assert(i == 4 and p == 17) + local i, p = unpack("!4 i4", x, -#x) + assert(i == 1 and p == 5) + + -- limits + for i = 1, #x + 1 do + assert(unpack("c0", x, i) == "") + end + checkerror("out of string", unpack, "c0", x, 0) + checkerror("out of string", unpack, "c0", x, #x + 2) + checkerror("out of string", unpack, "c0", x, -(#x + 1)) + + end + `, L; + + t.plan(2); + + t.doesNotThrow(function () { + + L = lauxlib.luaL_newstate(); + + lualib.luaL_openlibs(L); + + lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode)); + + }, "Lua program loaded without error"); + + t.doesNotThrow(function () { + + lua.lua_call(L, 0, -1); + + }, "Lua program ran without error"); + +}); |