test/test-suite: Move ported PUC-Rio test suite to jest

1 files changed, 895 insertions, 0 deletions

diff --git a/test/test-suite/errors.test.js b/test/test-suite/errors.test.js
new file mode 100644
index 0000000..83c7a90
--- /dev/null
+++ b/test/test-suite/errors.test.js
@@ -0,0 +1,895 @@
+"use strict";
+
+const lua = require('../../src/lua.js');
+const lauxlib = require('../../src/lauxlib.js');
+const lualib = require('../../src/lualib.js');
+const {to_luastring} = require("../../src/fengaricore.js");
+
+const prefix = `
+    -- avoid problems with 'strict' module (which may generate other error messages)
+    local mt = getmetatable(_G) or {}
+    local oldmm = mt.__index
+    mt.__index = nil
+
+    local function checkerr (msg, f, ...)
+      local st, err = pcall(f, ...)
+      assert(not st and string.find(err, msg))
+    end
+
+
+    local function doit (s)
+      local f, msg = load(s)
+      if f == nil then return msg end
+      local cond, msg = pcall(f)
+      return (not cond) and msg
+    end
+
+
+    local function checkmessage (prog, msg)
+      local m = doit(prog)
+      assert(string.find(m, msg, 1, true))
+    end
+
+    local function checksyntax (prog, extra, token, line)
+      local msg = doit(prog)
+      if not string.find(token, "^<%a") and not string.find(token, "^char%(")
+        then token = "'"..token.."'" end
+      token = string.gsub(token, "(%p)", "%%%1")
+      local pt = string.format([[^%%[string ".*"%%]:%d: .- near %s$]],
+                               line, token)
+      assert(string.find(msg, pt))
+      assert(string.find(msg, msg, 1, true))
+    end
+`;
+
+test("[test-suite] errors: test error message with no extra info", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        assert(doit("error('hi', 0)") == 'hi')
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: test error message with no info", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        assert(doit("error()") == nil)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: test common errors/errors that crashed in the past", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        assert(doit("table.unpack({}, 1, n=2^30)"))
+        assert(doit("a=math.sin()"))
+        assert(not doit("tostring(1)") and doit("tostring()"))
+        assert(doit"tonumber()")
+        assert(doit"repeat until 1; a")
+        assert(doit"return;;")
+        assert(doit"assert(false)")
+        assert(doit"assert(nil)")
+        assert(doit("function a (... , ...) end"))
+        assert(doit("function a (, ...) end"))
+        assert(doit("local t={}; t = t[#t] + 1"))
+
+        checksyntax([[
+          local a = {4
+
+        ]], "'}' expected (to close '{' at line 1)", "<eof>", 3)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: tests for better error messages", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage("a = {} + 1", "arithmetic")
+        checkmessage("a = {} | 1", "bitwise operation")
+        checkmessage("a = {} < 1", "attempt to compare")
+        checkmessage("a = {} <= 1", "attempt to compare")
+
+        checkmessage("a=1; bbbb=2; a=math.sin(3)+bbbb(3)", "global 'bbbb'")
+        checkmessage("a={}; do local a=1 end a:bbbb(3)", "method 'bbbb'")
+        checkmessage("local a={}; a.bbbb(3)", "field 'bbbb'")
+        assert(not string.find(doit"a={13}; local bbbb=1; a[bbbb](3)", "'bbbb'"))
+        checkmessage("a={13}; local bbbb=1; a[bbbb](3)", "number")
+        checkmessage("a=(1)..{}", "a table value")
+
+        checkmessage("a = #print", "length of a function value")
+        checkmessage("a = #3", "length of a number value")
+
+        aaa = nil
+        checkmessage("aaa.bbb:ddd(9)", "global 'aaa'")
+        checkmessage("local aaa={bbb=1}; aaa.bbb:ddd(9)", "field 'bbb'")
+        checkmessage("local aaa={bbb={}}; aaa.bbb:ddd(9)", "method 'ddd'")
+        checkmessage("local a,b,c; (function () a = b+1 end)()", "upvalue 'b'")
+        assert(not doit"local aaa={bbb={ddd=next}}; aaa.bbb:ddd(nil)")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: upvalues being indexed do not go to the stack", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage("local a,b,cc; (function () a = cc[1] end)()", "upvalue 'cc'")
+        checkmessage("local a,b,cc; (function () a.x = 1 end)()", "upvalue 'a'")
+
+        checkmessage("local _ENV = {x={}}; a = a + 1", "global 'a'")
+
+        checkmessage("b=1; local aaa='a'; x=aaa+b", "local 'aaa'")
+        checkmessage("aaa={}; x=3/aaa", "global 'aaa'")
+        checkmessage("aaa='2'; b=nil;x=aaa*b", "global 'b'")
+        checkmessage("aaa={}; x=-aaa", "global 'aaa'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: short circuit", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage("a=1; local a,bbbb=2,3; a = math.sin(1) and bbbb(3)",
+               "local 'bbbb'")
+        checkmessage("a=1; local a,bbbb=2,3; a = bbbb(1) or a(3)", "local 'bbbb'")
+        checkmessage("local a,b,c,f = 1,1,1; f((a and b) or c)", "local 'f'")
+        checkmessage("local a,b,c = 1,1,1; ((a and b) or c)()", "call a number value")
+        assert(not string.find(doit"aaa={}; x=(aaa or aaa)+(aaa and aaa)", "'aaa'"))
+        assert(not string.find(doit"aaa={}; (aaa or aaa)()", "'aaa'"))
+
+        checkmessage("print(print < 10)", "function with number")
+        checkmessage("print(print < print)", "two function values")
+        checkmessage("print('10' < 10)", "string with number")
+        checkmessage("print(10 < '23')", "number with string")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: float->integer conversions", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage("local a = 2.0^100; x = a << 2", "local a")
+        checkmessage("local a = 1 >> 2.0^100", "has no integer representation")
+        checkmessage("local a = '10' << 2.0^100", "has no integer representation")
+        checkmessage("local a = 2.0^100 & 1", "has no integer representation")
+        checkmessage("local a = 2.0^100 & '1'", "has no integer representation")
+        checkmessage("local a = 2.0 | 1e40", "has no integer representation")
+        checkmessage("local a = 2e100 ~ 1", "has no integer representation")
+        checkmessage("string.sub('a', 2.0^100)", "has no integer representation")
+        checkmessage("string.rep('a', 3.3)", "has no integer representation")
+        checkmessage("return 6e40 & 7", "has no integer representation")
+        checkmessage("return 34 << 7e30", "has no integer representation")
+        checkmessage("return ~-3e40", "has no integer representation")
+        checkmessage("return ~-3.009", "has no integer representation")
+        checkmessage("return 3.009 & 1", "has no integer representation")
+        checkmessage("return 34 >> {}", "table value")
+        checkmessage("a = 24 // 0", "divide by zero")
+        checkmessage("a = 1 % 0", "'n%0'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: passing light userdata instead of full userdata", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        _G.D = debug
+        checkmessage([[
+          -- create light udata
+          local x = D.upvalueid(function () return debug end, 1)
+          D.setuservalue(x, {})
+        ]], "light userdata")
+        _G.D = nil
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: named objects (field '__name')", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        do
+          checkmessage("math.sin(io.input())", "(number expected, got FILE*)")
+          _G.XX = setmetatable({}, {__name = "My Type"})
+          assert(string.find(tostring(XX), "^My Type"))
+          checkmessage("io.input(XX)", "(FILE* expected, got My Type)")
+          checkmessage("return XX + 1", "on a My Type value")
+          checkmessage("return ~io.stdin", "on a FILE* value")
+          checkmessage("return XX < XX", "two My Type values")
+          checkmessage("return {} < XX", "table with My Type")
+          checkmessage("return XX < io.stdin", "My Type with FILE*")
+          _G.XX = nil
+        end
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: global functions", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage("(io.write or print){}", "io.write")
+        checkmessage("(collectgarbage or print){}", "collectgarbage")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: errors in functions without debug info", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        do
+          local f = function (a) return a + 1 end
+          f = assert(load(string.dump(f, true)))
+          assert(f(3) == 4)
+          checkerr("^%?:%-1:", f, {})
+
+          -- code with a move to a local var ('OP_MOV A B' with A<B)
+          f = function () local a; a = {}; return a + 2 end
+          -- no debug info (so that 'a' is unknown)
+          f = assert(load(string.dump(f, true)))
+          -- symbolic execution should not get lost
+          checkerr("^%?:%-1:.*table value", f)
+        end
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: tests for field accesses after RK limit", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local t = {}
+        for i = 1, 1000 do
+          t[i] = "a = x" .. i
+        end
+        local s = table.concat(t, "; ")
+        t = nil
+        checkmessage(s.."; a = bbb + 1", "global 'bbb'")
+        checkmessage("local _ENV=_ENV;"..s.."; a = bbb + 1", "global 'bbb'")
+        checkmessage(s.."; local t = {}; a = t.bbb + 1", "field 'bbb'")
+        checkmessage(s.."; local t = {}; t:bbb()", "method 'bbb'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: global", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage([[aaa=9
+        repeat until 3==3
+        local x=math.sin(math.cos(3))
+        if math.sin(1) == x then return math.sin(1) end   -- tail call
+        local a,b = 1, {
+          {x='a'..'b'..'c', y='b', z=x},
+          {1,2,3,4,5} or 3+3<=3+3,
+          3+1>3+1,
+          {d = x and aaa[x or y]}}
+        ]], "global 'aaa'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: field", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage([[
+        local x,y = {},1
+        if math.sin(1) == 0 then return 3 end    -- return
+        x.a()]], "field 'a'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: global insert", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage([[
+        prefix = nil
+        insert = nil
+        while 1 do
+          local a
+          if nil then break end
+          insert(prefix, a)
+        end]], "global 'insert'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: sin", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage([[  -- tail call
+          return math.sin("a")
+        ]], "'sin'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: concatenate", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage([[x = print .. "a"]], "concatenate")
+        checkmessage([[x = "a" .. false]], "concatenate")
+        checkmessage([[x = {} .. 2]], "concatenate")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: unknown global", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checkmessage([[
+        local Var
+        local function main()
+          NoSuchName (function() Var=0 end)
+        end
+        main()
+        ]], "global 'NoSuchName'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: __index", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        a = {}; setmetatable(a, {__index = string})
+        checkmessage("a:sub()", "bad self")
+        checkmessage("string.sub('a', {})", "#2")
+        checkmessage("('a'):sub{}", "#1")
+
+        checkmessage("table.sort({1,2,3}, table.sort)", "'table.sort'")
+        checkmessage("string.gsub('s', 's', setmetatable)", "'setmetatable'")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: tests for errors in coroutines", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local function f (n)
+          local c = coroutine.create(f)
+          local a,b = coroutine.resume(c)
+          return b
+        end
+        assert(string.find(f(), "JS stack overflow"))
+
+        checkmessage("coroutine.yield()", "outside a coroutine")
+
+        f = coroutine.wrap(function () table.sort({1,2,3}, coroutine.yield) end)
+        checkerr("yield across", f)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: testing size of 'source' info", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        idsize = 60 - 1
+        local function checksize (source)
+          -- syntax error
+          local _, msg = load("x", source)
+          msg = string.match(msg, "^([^:]*):")   -- get source (1st part before ':')
+          assert(msg:len() <= idsize)
+        end
+
+        for i = 60 - 10, 60 + 10 do   -- check border cases around 60
+          checksize("@" .. string.rep("x", i))   -- file names
+          checksize(string.rep("x", i - 10))     -- string sources
+          checksize("=" .. string.rep("x", i))   -- exact sources
+        end
+
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: testing line error", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local function lineerror (s, l)
+          local err,msg = pcall(load(s))
+          local line = string.match(msg, ":(%d+):")
+          assert((line and line+0) == l)
+        end
+
+        lineerror("local a\\n for i=1,'a' do \\n print(i) \\n end", 2)
+        lineerror("\\n local a \\n for k,v in 3 \\n do \\n print(k) \\n end", 3)
+        lineerror("\\n\\n for k,v in \\n 3 \\n do \\n print(k) \\n end", 4)
+        lineerror("function a.x.y ()\\na=a+1\\nend", 1)
+
+        lineerror("a = \\na\\n+\\n{}", 3)
+        lineerror("a = \\n3\\n+\\n(\\n4\\n/\\nprint)", 6)
+        lineerror("a = \\nprint\\n+\\n(\\n4\\n/\\n7)", 3)
+
+        lineerror("a\\n=\\n-\\n\\nprint\\n;", 3)
+
+        lineerror([[
+        a
+        (
+        23)
+        ]], 1)
+
+        lineerror([[
+        local a = {x = 13}
+        a
+        .
+        x
+        (
+        23
+        )
+        ]], 2)
+
+        lineerror([[
+        local a = {x = 13}
+        a
+        .
+        x
+        (
+        23 + a
+        )
+        ]], 6)
+
+        local p = [[
+          function g() f() end
+          function f(x) error('a', X) end
+        g()
+        ]]
+        X=3;lineerror((p), 3)
+        X=0;lineerror((p), nil)
+        X=1;lineerror((p), 2)
+        X=2;lineerror((p), 1)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: several tests that exhaust the Lua stack", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        C = 0
+        local l = debug.getinfo(1, "l").currentline; function y () C=C+1; y() end
+
+        local function checkstackmessage (m)
+        return (string.find(m, "^.-:%d+: stack overflow"))
+        end
+        -- repeated stack overflows (to check stack recovery)
+        assert(checkstackmessage(doit('y()')))
+        assert(checkstackmessage(doit('y()')))
+        assert(checkstackmessage(doit('y()')))
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: error lines in stack overflow", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        C = 0
+        local l = debug.getinfo(1, "l").currentline; function y () C=C+1; y() end
+        local l1
+        local function g(x)
+          l1 = debug.getinfo(x, "l").currentline; y()
+        end
+        local _, stackmsg = xpcall(g, debug.traceback, 1)
+        local stack = {}
+        for line in string.gmatch(stackmsg, "[^\\n]*") do
+          local curr = string.match(line, ":(%d+):")
+          if curr then table.insert(stack, tonumber(curr)) end
+        end
+        local i=1
+        while stack[i] ~= l1 do
+          assert(stack[i] == l)
+          i = i+1
+        end
+        assert(i > 15)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: error in error handling", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local res, msg = xpcall(error, error)
+        assert(not res and type(msg) == 'string')
+
+        local function f (x)
+          if x==0 then error('a\\n')
+          else
+            local aux = function () return f(x-1) end
+            local a,b = xpcall(aux, aux)
+            return a,b
+          end
+        end
+        f(3)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: too many results", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local function loop (x,y,z) return 1 + loop(x, y, z) end
+
+        local res, msg = xpcall(loop, function (m)
+          assert(string.find(m, "stack overflow"))
+          checkerr("error handling", loop)
+          assert(math.sin(0) == 0)
+          return 15
+        end)
+        assert(msg == 15)
+
+        local f = function ()
+          for i = 999900, 1000000, 1 do table.unpack({}, 1, i) end
+        end
+        checkerr("too many results", f)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: non string messages", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        do
+          -- non string messages
+          local t = {}
+          local res, msg = pcall(function () error(t) end)
+          assert(not res and msg == t)
+
+          res, msg = pcall(function () error(nil) end)
+          assert(not res and msg == nil)
+
+          local function f() error{msg='x'} end
+          res, msg = xpcall(f, function (r) return {msg=r.msg..'y'} end)
+          assert(msg.msg == 'xy')
+
+          -- 'assert' with extra arguments
+          res, msg = pcall(assert, false, "X", t)
+          assert(not res and msg == "X")
+
+          -- 'assert' with no message
+          res, msg = pcall(function () assert(false) end)
+          local line = string.match(msg, "%w+%.lua:(%d+): assertion failed!$")
+          assert(tonumber(line) == debug.getinfo(1, "l").currentline - 2)
+
+          -- 'assert' with non-string messages
+          res, msg = pcall(assert, false, t)
+          assert(not res and msg == t)
+
+          res, msg = pcall(assert, nil, nil)
+          assert(not res and msg == nil)
+
+          -- 'assert' without arguments
+          res, msg = pcall(assert)
+          assert(not res and string.find(msg, "value expected"))
+        end
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadbuffer(L, to_luastring(prefix + luaCode), null, to_luastring("@errors.lua")) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: xpcall with arguments", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        a, b, c = xpcall(string.find, error, "alo", "al")
+        assert(a and b == 1 and c == 2)
+        a, b, c = xpcall(string.find, function (x) return {} end, true, "al")
+        assert(not a and type(b) == "table" and c == nil)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: testing tokens in error messages", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checksyntax("syntax error", "", "error", 1)
+        checksyntax("1.000", "", "1.000", 1)
+        checksyntax("[[a]]", "", "[[a]]", 1)
+        checksyntax("'aa'", "", "'aa'", 1)
+        checksyntax("while << do end", "", "<<", 1)
+        checksyntax("for >> do end", "", ">>", 1)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: test invalid non-printable char in a chunk", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checksyntax("a\\1a = 1", "", "<\\\\1>", 1)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: test 255 as first char in a chunk", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        checksyntax("\\255a = 1", "", "<\\\\255>", 1)
+
+        doit('I = load("a=9+"); a=3')
+        assert(a==3 and I == nil)
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: lots of errors", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        lim = 1000
+        if _soft then lim = 100 end
+        for i=1,lim do
+          doit('a = ')
+          doit('a = 4+nil')
+        end
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: testing syntax limits", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local maxClevel = 200    -- LUAI_MAXCCALLS (in llimits.h)
+
+        local function testrep (init, rep, close, repc)
+          local s = init .. string.rep(rep, maxClevel - 10) .. close ..
+                       string.rep(repc, maxClevel - 10)
+          assert(load(s))   -- 190 levels is OK
+          s = init .. string.rep(rep, maxClevel + 1)
+          checkmessage(s, "too many JS levels")
+        end
+
+        testrep("local a; a", ",a", "= 1", ",1")    -- multiple assignment
+        testrep("local a; a=", "{", "0", "}")
+        testrep("local a; a=", "(", "2", ")")
+        testrep("local a; ", "a(", "2", ")")
+        testrep("", "do ", "", " end")
+        testrep("", "while a do ", "", " end")
+        testrep("local a; ", "if a then else ", "", " end")
+        testrep("", "function foo () ", "", " end")
+        testrep("local a; a=", "a..", "a", "")
+        testrep("local a; a=", "a^", "a", "")
+
+        checkmessage("a = f(x" .. string.rep(",x", 260) .. ")", "too many registers")
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: upvalues limit", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        local lim = 127
+        local  s = "local function fooA ()\\n  local "
+        for j = 1,lim do
+          s = s.."a"..j..", "
+        end
+        s = s.."b,c\\n"
+        s = s.."local function fooB ()\\n  local "
+        for j = 1,lim do
+          s = s.."b"..j..", "
+        end
+        s = s.."b\\n"
+        s = s.."function fooC () return b+c"
+        local c = 1+2
+        for j = 1,lim do
+          s = s.."+a"..j.."+b"..j
+          c = c + 2
+        end
+        s = s.."\\nend  end end"
+        local a,b = load(s)
+        assert(c > 255 and string.find(b, "too many upvalues") and
+               string.find(b, "line 5"))
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] errors: local variables limit", () => {
+    let L = lauxlib.luaL_newstate();
+    if (!L) throw Error("failed to create lua state");
+
+    let luaCode = `
+        s = "\\nfunction foo ()\\n  local "
+        for j = 1,300 do
+          s = s.."a"..j..", "
+        end
+        s = s.."b\\n"
+        local a,b = load(s)
+        assert(string.find(b, "line 2") and string.find(b, "too many local variables"))
+    `;
+    lualib.luaL_openlibs(L);
+    if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+        throw new SyntaxError(lua.lua_tojsstring(L, -1));
+    lua.lua_call(L, 0, 0);
+});