"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');
test("[test-suite] calls: test 'type'", function (t) {
let luaCode = `
assert(type(1<2) == 'boolean')
assert(type(true) == 'boolean' and type(false) == 'boolean')
assert(type(nil) == 'nil'
and type(-3) == 'number'
and type'x' == 'string'
and type{} == 'table'
and type(type) == 'function')
assert(type(assert) == type(print))
function f (x) return a:x (x) end
assert(type(f) == 'function')
assert(not pcall(type))
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test error in 'print'", function (t) {
let luaCode = `
do -- test error in 'print' too...
local tostring = _ENV.tostring
_ENV.tostring = nil
local st, msg = pcall(print, 1)
assert(st == false and string.find(msg, "attempt to call a nil value"))
_ENV.tostring = function () return {} end
local st, msg = pcall(print, 1)
assert(st == false and string.find(msg, "must return a string"))
_ENV.tostring = tostring
end
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: testing local-function recursion", function (t) {
let luaCode = `
fact = false
do
local res = 1
local function fact (n)
if n==0 then return res
else return n*fact(n-1)
end
end
assert(fact(5) == 120)
end
assert(fact == false)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: testing declarations", function (t) {
let luaCode = `
a = {i = 10}
self = 20
function a:x (x) return x+self.i end
function a.y (x) return x+self end
assert(a:x(1)+10 == a.y(1))
a.t = {i=-100}
a["t"].x = function (self, a,b) return self.i+a+b end
assert(a.t:x(2,3) == -95)
do
local a = {x=0}
function a:add (x) self.x, a.y = self.x+x, 20; return self end
assert(a:add(10):add(20):add(30).x == 60 and a.y == 20)
end
local a = {b={c={}}}
function a.b.c.f1 (x) return x+1 end
function a.b.c:f2 (x,y) self[x] = y end
assert(a.b.c.f1(4) == 5)
a.b.c:f2('k', 12); assert(a.b.c.k == 12)
t = nil -- 'declare' t
function f(a,b,c) local d = 'a'; t={a,b,c,d} end
f( -- this line change must be valid
1,2)
assert(t[1] == 1 and t[2] == 2 and t[3] == nil and t[4] == 'a')
f(1,2, -- this one too
3,4)
assert(t[1] == 1 and t[2] == 2 and t[3] == 3 and t[4] == 'a')
function fat(x)
if x <= 1 then return 1
else return x*load("return fat(" .. x-1 .. ")", "")()
end
end
assert(load "load 'assert(fat(6)==720)' () ")()
a = load('return fat(5), 3')
a,b = a()
assert(a == 120 and b == 3)
function err_on_n (n)
if n==0 then error(); exit(1);
else err_on_n (n-1); exit(1);
end
end
do
function dummy (n)
if n > 0 then
assert(not pcall(err_on_n, n))
dummy(n-1)
end
end
end
dummy(10)
function deep (n)
if n>0 then deep(n-1) end
end
deep(10)
deep(200)
-- testing tail call
function deep (n) if n>0 then return deep(n-1) else return 101 end end
assert(deep(30000) == 101)
a = {}
function a:deep (n) if n>0 then return self:deep(n-1) else return 101 end end
assert(a:deep(30000) == 101)
a = nil
(function (x) a=x end)(23)
assert(a == 23 and (function (x) return x*2 end)(20) == 40)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: testing closures", function (t) {
let luaCode = `
-- fixed-point operator
Z = function (le)
local function a (f)
return le(function (x) return f(f)(x) end)
end
return a(a)
end
-- non-recursive factorial
F = function (f)
return function (n)
if n == 0 then return 1
else return n*f(n-1) end
end
end
fat = Z(F)
assert(fat(0) == 1 and fat(4) == 24 and Z(F)(5)==5*Z(F)(4))
local function g (z)
local function f (a,b,c,d)
return function (x,y) return a+b+c+d+a+x+y+z end
end
return f(z,z+1,z+2,z+3)
end
f = g(10)
assert(f(9, 16) == 10+11+12+13+10+9+16+10)
Z, F, f = nil
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: testing multiple returns", function (t) {
let luaCode = `
function unlpack (t, i)
i = i or 1
if (i <= #t) then
return t[i], unlpack(t, i+1)
end
end
function equaltab (t1, t2)
assert(#t1 == #t2)
for i = 1, #t1 do
assert(t1[i] == t2[i])
end
end
local pack = function (...) return (table.pack(...)) end
function f() return 1,2,30,4 end
function ret2 (a,b) return a,b end
local a,b,c,d = unlpack{1,2,3}
assert(a==1 and b==2 and c==3 and d==nil)
a = {1,2,3,4,false,10,'alo',false,assert}
equaltab(pack(unlpack(a)), a)
equaltab(pack(unlpack(a), -1), {1,-1})
a,b,c,d = ret2(f()), ret2(f())
assert(a==1 and b==1 and c==2 and d==nil)
a,b,c,d = unlpack(pack(ret2(f()), ret2(f())))
assert(a==1 and b==1 and c==2 and d==nil)
a,b,c,d = unlpack(pack(ret2(f()), (ret2(f()))))
assert(a==1 and b==1 and c==nil and d==nil)
a = ret2{ unlpack{1,2,3}, unlpack{3,2,1}, unlpack{"a", "b"}}
assert(a[1] == 1 and a[2] == 3 and a[3] == "a" and a[4] == "b")
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: testing calls with 'incorrect' arguments", function (t) {
let luaCode = `
rawget({}, "x", 1)
rawset({}, "x", 1, 2)
assert(math.sin(1,2) == math.sin(1))
table.sort({10,9,8,4,19,23,0,0}, function (a,b) return a<b end, "extra arg")
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test for generic load", function (t) {
let luaCode = `
local x = "-- a comment\\0\\0\\0\\n x = 10 + \\n23; \\
local a = function () x = 'hi' end; \\
return '\\0'"
function read1 (x)
local i = 0
return function ()
i=i+1
return string.sub(x, i, i)
end
end
function cannotload (msg, a,b)
assert(not a and string.find(b, msg))
end
a = assert(load(read1(x), "modname", "t", _G))
assert(a() == "\0" and _G.x == 33)
assert(debug.getinfo(a).source == "modname")
-- cannot read text in binary mode
cannotload("attempt to load a text chunk", load(read1(x), "modname", "b", {}))
cannotload("attempt to load a text chunk", load(x, "modname", "b"))
a = assert(load(function () return nil end))
a() -- empty chunk
assert(not load(function () return true end))
local t = {nil, "return ", "3"}
f, msg = load(function () return table.remove(t, 1) end)
assert(f() == nil) -- should read the empty chunk
f = load(string.dump(function () return 1 end), nil, "b", {})
assert(type(f) == "function" and f() == 1)
x = string.dump(load("x = 1; return x"))
a = assert(load(read1(x), nil, "b"))
assert(a() == 1 and _G.x == 1)
cannotload("attempt to load a binary chunk", load(read1(x), nil, "t"))
cannotload("attempt to load a binary chunk", load(x, nil, "t"))
assert(not pcall(string.dump, print)) -- no dump of C functions
cannotload("unexpected symbol", load(read1("*a = 123")))
cannotload("unexpected symbol", load("*a = 123"))
cannotload("hhi", load(function () error("hhi") end))
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: any value is valid for _ENV", function (t) {
let luaCode = `
assert(load("return _ENV", nil, nil, 123)() == 123)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: load when _ENV is not first upvalue", function (t) {
let luaCode = `
local x; XX = 123
local function h ()
local y=x -- use 'x', so that it becomes 1st upvalue
return XX -- global name
end
local d = string.dump(h)
x = load(d, "", "b")
assert(debug.getupvalue(x, 2) == '_ENV')
debug.setupvalue(x, 2, _G)
assert(x() == 123)
assert(assert(load("return XX + ...", nil, nil, {XX = 13}))(4) == 17)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test generic load with nested functions", function (t) {
let luaCode = `
function read1 (x)
local i = 0
return function ()
i=i+1
return string.sub(x, i, i)
end
end
x = [[
return function (x)
return function (y)
return function (z)
return x+y+z
end
end
end
]]
a = assert(load(read1(x)))
assert(a()(2)(3)(10) == 15)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test for dump/undump with upvalues", function (t) {
let luaCode = `
local a, b = 20, 30
x = load(string.dump(function (x)
if x == "set" then a = 10+b; b = b+1 else
return a
end
end), "", "b", nil)
assert(x() == nil)
assert(debug.setupvalue(x, 1, "hi") == "a")
assert(x() == "hi")
assert(debug.setupvalue(x, 2, 13) == "b")
assert(not debug.setupvalue(x, 3, 10)) -- only 2 upvalues
x("set")
assert(x() == 23)
x("set")
assert(x() == 24)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test for dump/undump with many upvalues", function (t) {
let luaCode = `
do
local nup = 200 -- maximum number of local variables
local prog = {"local a1"}
for i = 2, nup do prog[#prog + 1] = ", a" .. i end
prog[#prog + 1] = " = 1"
for i = 2, nup do prog[#prog + 1] = ", " .. i end
local sum = 1
prog[#prog + 1] = "; return function () return a1"
for i = 2, nup do prog[#prog + 1] = " + a" .. i; sum = sum + i end
prog[#prog + 1] = " end"
prog = table.concat(prog)
local f = assert(load(prog))()
assert(f() == sum)
f = load(string.dump(f)) -- main chunk now has many upvalues
local a = 10
local h = function () return a end
for i = 1, nup do
debug.upvaluejoin(f, i, h, 1)
end
assert(f() == 10 * nup)
end
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test for long method names", function (t) {
let luaCode = `
do
local t = {x = 1}
function t:_012345678901234567890123456789012345678901234567890123456789 ()
return self.x
end
assert(t:_012345678901234567890123456789012345678901234567890123456789() == 1)
end
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: test for bug in parameter adjustment", function (t) {
let luaCode = `
assert((function () return nil end)(4) == nil)
assert((function () local a; return a end)(4) == nil)
assert((function (a) return a end)() == nil)
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});
test("[test-suite] calls: testing binary chunks", function (t) {
let luaCode = `
do
local header = string.pack("c4BBc6BBBBBj",
"\\27Lua", -- signature
5*16 + 3, -- version 5.3
0, -- format
"\\x19\\x93\\r\\n\\x1a\\n", -- data
string.packsize("i"), -- sizeof(int)
string.packsize("T"), -- sizeof(size_t)
4, -- size of instruction
string.packsize("j"), -- sizeof(lua integer)
string.packsize("n"), -- sizeof(lua number)
0x5678 -- LUAC_INT
-- LUAC_NUM may not have a unique binary representation (padding...)
)
local c = string.dump(function () local a = 1; local b = 3; return a+b*3 end)
assert(string.sub(c, 1, #header) == header)
-- corrupted header
for i = 1, #header do
local s = string.sub(c, 1, i - 1) ..
string.char(string.byte(string.sub(c, i, i)) + 1) ..
string.sub(c, i + 1, -1)
assert(#s == #c)
assert(not load(s))
end
-- loading truncated binary chunks
for i = 1, #c - 1 do
local st, msg = load(string.sub(c, 1, i))
assert(not st and string.find(msg, "truncated"))
end
assert(assert(load(c))() == 10)
end
`, L;
t.plan(2);
t.doesNotThrow(function () {
L = lauxlib.luaL_newstate();
lualib.luaL_openlibs(L);
lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
}, "Lua program loaded without error");
t.doesNotThrow(function () {
lua.lua_call(L, 0, -1);
}, "Lua program ran without error");
});