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Michael Lustfield authoredMichael Lustfield authored
api.lua 18.56 KiB
if T==nil then
(Message or print)('\a\n >>> testC not active: skipping API tests <<<\n\a')
return
end
function tcheck (t1, t2)
table.remove(t1, 1) -- remove code
assert(table.getn(t1) == table.getn(t2))
for i=1,table.getn(t1) do assert(t1[i] == t2[i]) end
end
function pack(...) return arg end
print('testing C API')
-- testing allignment
a = T.d2s(12458954321123)
assert(string.len(a) == 8) -- sizeof(double)
assert(T.s2d(a) == 12458954321123)
a,b,c = T.testC("pushnum 1; pushnum 2; pushnum 3; return 2")
assert(a == 2 and b == 3 and not c)
-- test that all trues are equal
a,b,c = T.testC("pushbool 1; pushbool 2; pushbool 0; return 3")
assert(a == b and a == true and c == false)
a,b,c = T.testC"pushbool 0; pushbool 10; pushnil;\
tobool -3; tobool -3; tobool -3; return 3"
assert(a==0 and b==1 and c==0)
a,b,c = T.testC("gettop; return 2", 10, 20, 30, 40)
assert(a == 40 and b == 5 and not c)
t = pack(T.testC("settop 5; gettop; return .", 2, 3))
tcheck(t, {n=4,2,3})
t = pack(T.testC("settop 0; settop 15; return 10", 3, 1, 23))
assert(t.n == 10 and t[1] == nil and t[10] == nil)
t = pack(T.testC("remove -2; gettop; return .", 2, 3, 4))
tcheck(t, {n=2,2,4})
t = pack(T.testC("insert -1; gettop; return .", 2, 3))
tcheck(t, {n=2,2,3})
t = pack(T.testC("insert 3; gettop; return .", 2, 3, 4, 5))
tcheck(t, {n=4,2,5,3,4})
t = pack(T.testC("replace 2; gettop; return .", 2, 3, 4, 5))
tcheck(t, {n=3,5,3,4})
t = pack(T.testC("replace -2; gettop; return .", 2, 3, 4, 5))
tcheck(t, {n=3,2,3,5})
t = pack(T.testC("remove 3; gettop; return .", 2, 3, 4, 5))
tcheck(t, {n=3,2,4,5})
t = pack(T.testC("insert 3; pushvalue 3; remove 3; pushvalue 2; remove 2; \
insert 2; pushvalue 1; remove 1; insert 1; \
insert -2; pushvalue -2; remove -3; gettop; return .",
2, 3, 4, 5, 10, 40, 90))
tcheck(t, {n=7,2,3,4,5,10,40,90})
t = pack(T.testC("concat 5; gettop; return .", "alo", 2, 3, "joao", 12))
tcheck(t, {n=1,"alo23joao12"})
-- testing MULTRET
t = pack(T.testC("rawcall 2,-1; gettop; return .",
function (a,b) return 1,2,3,4,a,b end, "alo", "joao"))
tcheck(t, {n=6,1,2,3,4,"alo", "joao"})
do -- test returning more results than fit in the caller stack
local a = {}
for i=1,1000 do a[i] = true end; a[999] = 10
local b = T.testC([[call 1 -1; pop 1; tostring -1; return 1]], unpack, a)
assert(b == "10")
end
-- testing lessthan
assert(T.testC("lessthan 2 5, return 1", 3, 2, 2, 4, 2, 2))
assert(T.testC("lessthan 5 2, return 1", 4, 2, 2, 3, 2, 2))
assert(not T.testC("lessthan 2 -3, return 1", "4", "2", "2", "3", "2", "2"))
assert(not T.testC("lessthan -3 2, return 1", "3", "2", "2", "4", "2", "2"))
local b = {__lt = function (a,b) return a[1] < b[1] end}
local a1,a3,a4 = setmetatable({1}, b),
setmetatable({3}, b),
setmetatable({4}, b)
assert(T.testC("lessthan 2 5, return 1", a3, 2, 2, a4, 2, 2))
assert(T.testC("lessthan 5 -6, return 1", a4, 2, 2, a3, 2, 2))
a,b = T.testC("lessthan 5 -6, return 2", a1, 2, 2, a3, 2, 20)
assert(a == 20 and b == false)
-- testing lua_is
function count (x, n)
n = n or 2
local prog = [[
isnumber %d;
isstring %d;
isfunction %d;
iscfunction %d;
istable %d;
isuserdata %d;
isnil %d;
isnull %d;
return 8
]]
prog = string.format(prog, n, n, n, n, n, n, n, n)
local a,b,c,d,e,f,g,h = T.testC(prog, x)
return a+b+c+d+e+f+g+(100*h)
end
assert(count(3) == 2)
assert(count('alo') == 1)
assert(count('32') == 2)
assert(count({}) == 1)
assert(count(print) == 2)
assert(count(function () end) == 1)
assert(count(nil) == 1)
assert(count(io.stdin) == 1)
assert(count(nil, 15) == 100)
-- testing lua_to...
function to (s, x, n)
n = n or 2
return T.testC(string.format("%s %d; return 1", s, n), x)
end
assert(to("tostring", {}) == nil)
assert(to("tostring", "alo") == "alo")
assert(to("tostring", 12) == "12")assert(to("tostring", 12, 3) == nil)
assert(to("objsize", {}) == 0)
assert(to("objsize", "alo\0\0a") == 6)
assert(to("objsize", T.newuserdata(0)) == 0)
assert(to("objsize", T.newuserdata(101)) == 101)
assert(to("objsize", 12) == 2)
assert(to("objsize", 12, 3) == 0)
assert(to("tonumber", {}) == 0)
assert(to("tonumber", "12") == 12)
assert(to("tonumber", "s2") == 0)
assert(to("tonumber", 1, 20) == 0)
a = to("tocfunction", math.deg)
assert(a(3) == math.deg(3) and a ~= math.deg)
-- testing errors
a = T.testC([[
loadstring 2; call 0,1;
pushvalue 3; insert -2; call 1, 1;
call 0, 0;
return 1
]], "x=150", function (a) assert(a==nil); return 3 end)
assert(type(a) == 'string' and x == 150)
function check3(p, ...)
assert(arg.n == 3)
assert(string.find(arg[3], p))
end
check3(":1:", T.testC("loadstring 2; gettop; return .", "x="))
check3("cannot read", T.testC("loadfile 2; gettop; return .", "."))
check3("cannot open xxxx", T.testC("loadfile 2; gettop; return .", "xxxx"))
-- testing table access
a = {x=0, y=12}
x, y = T.testC("gettable 2; pushvalue 4; gettable 2; return 2",
a, 3, "y", 4, "x")
assert(x == 0 and y == 12)
T.testC("settable -5", a, 3, 4, "x", 15)
assert(a.x == 15)
a[a] = print
x = T.testC("gettable 2; return 1", a) -- table and key are the same object!
assert(x == print)
T.testC("settable 2", a, "x") -- table and key are the same object!
assert(a[a] == "x")
b = setmetatable({p = a}, {})
getmetatable(b).__index = function (t, i) return t.p[i] end
k, x = T.testC("gettable 3, return 2", 4, b, 20, 35, "x")
assert(x == 15 and k == 35)
getmetatable(b).__index = function (t, i) return a[i] end
getmetatable(b).__newindex = function (t, i,v ) a[i] = v end
y = T.testC("insert 2; gettable -5; return 1", 2, 3, 4, "y", b)
assert(y == 12)
k = T.testC("settable -5, return 1", b, 3, 4, "x", 16)
assert(a.x == 16 and k == 4)
a[b] = 'xuxu'
y = T.testC("gettable 2, return 1", b)
assert(y == 'xuxu')
T.testC("settable 2", b, 19)
assert(a[b] == 19)
-- testing next
a = {}
t = pack(T.testC("next; gettop; return .", a, nil))
tcheck(t, {n=1,a})
a = {a=3}
t = pack(T.testC("next; gettop; return .", a, nil))tcheck(t, {n=3,a,'a',3})
t = pack(T.testC("next; pop 1; next; gettop; return .", a, nil))
tcheck(t, {n=1,a})
-- testing upvalues
do
local A = T.testC[[ pushnum 10; pushnum 20; pushcclosure 2; return 1]]
t, b, c = A([[pushvalue U0; pushvalue U1; pushvalue U2; return 3]])
assert(b == 10 and c == 20 and type(t) == 'table')
a, b = A([[tostring U3; tonumber U4; return 2]])
assert(a == nil and b == 0)
A([[pushnum 100; pushnum 200; replace U2; replace U1]])
b, c = A([[pushvalue U1; pushvalue U2; return 2]])
assert(b == 100 and c == 200)
A([[replace U2; replace U1]], {x=1}, {x=2})
b, c = A([[pushvalue U1; pushvalue U2; return 2]])
assert(b.x == 1 and c.x == 2)
T.checkmemory()
end
local f = T.testC[[ pushnum 10; pushnum 20; pushcclosure 2; return 1]]
assert(T.upvalue(f, 1) == 10 and
T.upvalue(f, 2) == 20 and
T.upvalue(f, 3) == nil)
T.upvalue(f, 2, "xuxu")
assert(T.upvalue(f, 2) == "xuxu")
-- testing environments
assert(T.testC"pushvalue G; return 1" == _G)
assert(T.testC"pushvalue E; return 1" == _G)
local a = {}
T.testC("replace E; return 1", a)
assert(T.testC"pushvalue G; return 1" == _G)
assert(T.testC"pushvalue E; return 1" == a)
assert(debug.getfenv(T.testC) == a)
assert(debug.getfenv(T.upvalue) == _G)
-- userdata inherit environment
local u = T.testC"newuserdata 0; return 1"
assert(debug.getfenv(u) == a)
-- functions inherit environment
u = T.testC"pushcclosure 0; return 1"
assert(debug.getfenv(u) == a)
debug.setfenv(T.testC, _G)
assert(T.testC"pushvalue E; return 1" == _G)
local b = newproxy()
assert(debug.getfenv(b) == _G)
assert(debug.setfenv(b, a))
assert(debug.getfenv(b) == a)
-- testing locks (refs)
-- reuse of references
local i = T.ref{}
T.unref(i)
assert(T.ref{} == i)
Arr = {}
Lim = 100
for i=1,Lim do -- lock many objects
Arr[i] = T.ref({})
end
assert(T.ref(nil) == -1 and T.getref(-1) == nil)
T.unref(-1); T.unref(-1)
for i=1,Lim do -- unlock all them
T.unref(Arr[i])
end
function printlocks ()
local n = T.testC("gettable R; return 1", "n")
print("n", n)
for i=0,n do
print(i, T.testC("gettable R; return 1", i))
end
end
for i=1,Lim do -- lock many objects
Arr[i] = T.ref({})
end
for i=1,Lim,2 do -- unlock half of them
T.unref(Arr[i])
end
assert(type(T.getref(Arr[2])) == 'table')
assert(T.getref(-1) == nil)
a = T.ref({})
collectgarbage()
assert(type(T.getref(a)) == 'table')
-- colect in cl the `val' of all collected userdata
tt = {}
cl = {n=0}
A = nil; B = nil
local F
F = function (x)
local udval = T.udataval(x)
table.insert(cl, udval)
local d = T.newuserdata(100) -- cria lixo
d = nil
assert(debug.getmetatable(x).__gc == F)
loadstring("table.insert({}, {})")() -- cria mais lixo
collectgarbage() -- forca coleta de lixo durante coleta!
assert(debug.getmetatable(x).__gc == F) -- coleta anterior nao melou isso?
local dummy = {} -- cria lixo durante coleta
if A ~= nil then
assert(type(A) == "userdata")
assert(T.udataval(A) == B)
debug.getmetatable(A) -- just acess it
end
A = x -- ressucita userdata
B = udval
return 1,2,3
end
tt.__gc = F
-- test whether udate collection frees memory in the right time
do
collectgarbage();
collectgarbage();
local x = collectgarbage("count");
local a = T.newuserdata(5001)
assert(T.testC("objsize 2; return 1", a) == 5001) assert(collectgarbage("count") >= x+4)
a = nil
collectgarbage();
assert(collectgarbage("count") <= x+1)
-- udata without finalizer
x = collectgarbage("count")
collectgarbage("stop")
for i=1,1000 do newproxy(false) end
assert(collectgarbage("count") > x+10)
collectgarbage()
assert(collectgarbage("count") <= x+1)
-- udata with finalizer
x = collectgarbage("count")
collectgarbage()
collectgarbage("stop")
a = newproxy(true)
getmetatable(a).__gc = function () end
for i=1,1000 do newproxy(a) end
assert(collectgarbage("count") >= x+10)
collectgarbage() -- this collection only calls TM, without freeing memory
assert(collectgarbage("count") >= x+10)
collectgarbage() -- now frees memory
assert(collectgarbage("count") <= x+1)
end
collectgarbage("stop")
-- create 3 userdatas with tag `tt'
a = T.newuserdata(0); debug.setmetatable(a, tt); na = T.udataval(a)
b = T.newuserdata(0); debug.setmetatable(b, tt); nb = T.udataval(b)
c = T.newuserdata(0); debug.setmetatable(c, tt); nc = T.udataval(c)
-- create userdata without meta table
x = T.newuserdata(4)
y = T.newuserdata(0)
assert(debug.getmetatable(x) == nil and debug.getmetatable(y) == nil)
d=T.ref(a);
e=T.ref(b);
f=T.ref(c);
t = {T.getref(d), T.getref(e), T.getref(f)}
assert(t[1] == a and t[2] == b and t[3] == c)
t=nil; a=nil; c=nil;
T.unref(e); T.unref(f)
collectgarbage()
-- check that unref objects have been collected
assert(table.getn(cl) == 1 and cl[1] == nc)
x = T.getref(d)
assert(type(x) == 'userdata' and debug.getmetatable(x) == tt)
x =nil
tt.b = b -- create cycle
tt=nil -- frees tt for GC
A = nil
b = nil
T.unref(d);
n5 = T.newuserdata(0)
debug.setmetatable(n5, {__gc=F})
n5 = T.udataval(n5)
collectgarbage()
assert(table.getn(cl) == 4)
-- check order of collection
assert(cl[2] == n5 and cl[3] == nb and cl[4] == na)
a, na = {}, {}
for i=30,1,-1 do
a[i] = T.newuserdata(0)
debug.setmetatable(a[i], {__gc=F})
na[i] = T.udataval(a[i])
end
cl = {}
a = nil; collectgarbage()
assert(table.getn(cl) == 30)
for i=1,30 do assert(cl[i] == na[i]) end
na = nil
for i=2,Lim,2 do -- unlock the other half
T.unref(Arr[i])
end
x = T.newuserdata(41); debug.setmetatable(x, {__gc=F})
assert(T.testC("objsize 2; return 1", x) == 41)
cl = {}
a = {[x] = 1}
x = T.udataval(x)
collectgarbage()
-- old `x' cannot be collected (`a' still uses it)
assert(table.getn(cl) == 0)
for n in pairs(a) do a[n] = nil end
collectgarbage()
assert(table.getn(cl) == 1 and cl[1] == x) -- old `x' must be collected
-- testing lua_equal
assert(T.testC("equal 2 4; return 1", print, 1, print, 20))
assert(T.testC("equal 3 2; return 1", 'alo', "alo"))
assert(T.testC("equal 2 3; return 1", nil, nil))
assert(not T.testC("equal 2 3; return 1", {}, {}))
assert(not T.testC("equal 2 3; return 1"))
assert(not T.testC("equal 2 3; return 1", 3))
-- testing lua_equal with fallbacks
do
local map = {}
local t = {__eq = function (a,b) return map[a] == map[b] end}
local function f(x)
local u = T.newuserdata(0)
debug.setmetatable(u, t)
map[u] = x
return u
end
assert(f(10) == f(10))
assert(f(10) ~= f(11))
assert(T.testC("equal 2 3; return 1", f(10), f(10)))
assert(not T.testC("equal 2 3; return 1", f(10), f(20)))
t.__eq = nil
assert(f(10) ~= f(10))
end
print'+'
-------------------------------------------------------------------------
do -- testing errors during GC
local a = {}
for i=1,20 do
a[i] = T.newuserdata(i) -- creates several udata
end
for i=1,20,2 do -- mark half of them to raise error during GC
debug.setmetatable(a[i], {__gc = function (x) error("error inside gc") end})
end
for i=2,20,2 do -- mark the other half to count and to create more garbage
debug.setmetatable(a[i], {__gc = function (x) loadstring("A=A+1")() end}) end
_G.A = 0
a = 0
while 1 do
if xpcall(collectgarbage, function (s) a=a+1 end) then
break -- stop if no more errors
end
end
assert(a == 10) -- number of errors
assert(A == 10) -- number of normal collections
end
-------------------------------------------------------------------------
-- test for userdata vals
do
local a = {}; local lim = 30
for i=0,lim do a[i] = T.pushuserdata(i) end
for i=0,lim do assert(T.udataval(a[i]) == i) end
for i=0,lim do assert(T.pushuserdata(i) == a[i]) end
for i=0,lim do a[a[i]] = i end
for i=0,lim do a[T.pushuserdata(i)] = i end
assert(type(tostring(a[1])) == "string")
end
-------------------------------------------------------------------------
-- testing multiple states
T.closestate(T.newstate());
L1 = T.newstate()
assert(L1)
assert(pack(T.doremote(L1, "function f () return 'alo', 3 end; f()")).n == 0)
a, b = T.doremote(L1, "return f()")
assert(a == 'alo' and b == '3')
T.doremote(L1, "_ERRORMESSAGE = nil")
-- error: `sin' is not defined
a, b = T.doremote(L1, "return sin(1)")
assert(a == nil and b == 2) -- 2 == run-time error
-- error: syntax error
a, b, c = T.doremote(L1, "return a+")
assert(a == nil and b == 3 and type(c) == "string") -- 3 == syntax error
T.loadlib(L1)
a, b = T.doremote(L1, [[
a = strlibopen()
a = packageopen()
a = baselibopen(); assert(a == _G and require("_G") == a)
a = iolibopen(); assert(type(a.read) == "function")
assert(require("io") == a)
a = tablibopen(); assert(type(a.insert) == "function")
a = dblibopen(); assert(type(a.getlocal) == "function")
a = mathlibopen(); assert(type(a.sin) == "function")
return string.sub('okinama', 1, 2)
]])
assert(a == "ok")
T.closestate(L1);
L1 = T.newstate()
T.loadlib(L1)
T.doremote(L1, "a = {}")
T.testC(L1, [[pushstring a; gettable G; pushstring x; pushnum 1;
settable -3]])
assert(T.doremote(L1, "return a.x") == "1")
T.closestate(L1)
L1 = nil
print('+')
-------------------------------------------------------------------------
-- testing memory limits
-------------------------------------------------------------------------
collectgarbage()
T.totalmem(T.totalmem()+5000) -- set low memory limit (+5k)
assert(not pcall(loadstring"local a={}; for i=1,100000 do a[i]=i end"))
T.totalmem(1000000000) -- restore high limit
local function stack(x) if x>0 then stack(x-1) end end
-- test memory errors; increase memory limit in small steps, so that
-- we get memory errors in different parts of a given task, up to there
-- is enough memory to complete the task without errors
function testamem (s, f)
collectgarbage()
stack(10) -- ensure minimum stack size
local M = T.totalmem()
local oldM = M
local a,b = nil
while 1 do
M = M+3 -- increase memory limit in small steps
T.totalmem(M)
a, b = pcall(f)
if a and b then break end -- stop when no more errors
collectgarbage()
if not a and not string.find(b, "memory") then -- `real' error?
T.totalmem(1000000000) -- restore high limit
error(b, 0)
end
end
T.totalmem(1000000000) -- restore high limit
print("\nlimit for " .. s .. ": " .. M-oldM)
return b
end
-- testing memory errors when creating a new state
b = testamem("state creation", T.newstate)
T.closestate(b); -- close new state
-- testing threads
function expand (n,s)
if n==0 then return "" end
local e = string.rep("=", n)
return string.format("T.doonnewstack([%s[ %s;\n collectgarbage(); %s]%s])\n",
e, s, expand(n-1,s), e)
end
G=0; collectgarbage(); a =collectgarbage("count")
loadstring(expand(20,"G=G+1"))()
assert(G==20); collectgarbage(); -- assert(gcinfo() <= a+1)
testamem("thread creation", function ()
return T.doonnewstack("x=1") == 0 -- try to create thread
end)
-- testing memory x compiler
testamem("loadstring", function ()
return loadstring("x=1") -- try to do a loadstring
end)
local testprog = [[
local function foo () return end
local t = {"x"}
a = "aaa"
for _, v in ipairs(t) do a=a..v end
return true
]]
-- testing memory x dofile
_G.a = nil
local t =os.tmpname()
local f = assert(io.open(t, "w"))
f:write(testprog)
f:close()
testamem("dofile", function ()
local a = loadfile(t)
return a and a()
end)
assert(os.remove(t))
assert(_G.a == "aaax")
-- other generic tests
testamem("string creation", function ()
local a, b = string.gsub("alo alo", "(a)", function (x) return x..'b' end)
return (a == 'ablo ablo')
end)
testamem("dump/undump", function ()
local a = loadstring(testprog)
local b = a and string.dump(a)
a = b and loadstring(b)
return a and a()
end)
local t = os.tmpname()
testamem("file creation", function ()
local f = assert(io.open(t, 'w'))
assert (not io.open"nomenaoexistente")
io.close(f);
return not loadfile'nomenaoexistente'
end)
assert(os.remove(t))
testamem("table creation", function ()
local a, lim = {}, 10
for i=1,lim do a[i] = i; a[i..'a'] = {} end
return (type(a[lim..'a']) == 'table' and a[lim] == lim)
end)
local a = 1
close = nil
testamem("closure creation", function ()
function close (b,c)
return function (x) return a+b+c+x end
end
return (close(2,3)(4) == 10)
end)
testamem("coroutines", function ()
local a = coroutine.wrap(function ()
coroutine.yield(string.rep("a", 10))
return {}
end)
assert(string.len(a()) == 10)
return a()
end)
print'+'
-- testing some auxlib functions
assert(T.gsub("alo.alo.uhuh.", ".", "//") == "alo//alo//uhuh//")
assert(T.gsub("alo.alo.uhuh.", "alo", "//") == "//.//.uhuh.")
assert(T.gsub("", "alo", "//") == "")
assert(T.gsub("...", ".", "/.") == "/././.")
assert(T.gsub("...", "...", "") == "")
print'OK'