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authorBenoit Giannangeli <giann008@gmail.com>2017-05-19 10:49:22 +0200
committerBenoit Giannangeli <giann008@gmail.com>2017-05-19 10:49:22 +0200
commit50e0ac605a267a2be38381aed4d865305a0251a9 (patch)
tree0c96034628ef216e265d24a4c6ab8882a61c4e21 /tests/test-suite/tpack.js
parentc7c02abd1610be55ea1615c25cf4b849a1443457 (diff)
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[test-suite] math.js
Diffstat (limited to 'tests/test-suite/tpack.js')
-rw-r--r--tests/test-suite/tpack.js693
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");
+
+});