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-rw-r--r--tests/test-suite/vararg.js226
1 files changed, 226 insertions, 0 deletions
diff --git a/tests/test-suite/vararg.js b/tests/test-suite/vararg.js
new file mode 100644
index 0000000..3fbb8b8
--- /dev/null
+++ b/tests/test-suite/vararg.js
@@ -0,0 +1,226 @@
+"use strict";
+
+const test = require('tape');
+
+const lauxlib = require("../../src/lauxlib.js");
+const lua = require('../../src/lua.js');
+
+
+test("[test-suite] vararg: testing vararg", function (t) {
+ let luaCode = `
+ function f(a, ...)
+ local arg = {n = select('#', ...), ...}
+ for i=1,arg.n do assert(a[i]==arg[i]) end
+ return arg.n
+ end
+
+ function c12 (...)
+ assert(arg == _G.arg) -- no local 'arg'
+ local x = {...}; x.n = #x
+ local res = (x.n==2 and x[1] == 1 and x[2] == 2)
+ if res then res = 55 end
+ return res, 2
+ end
+
+ function vararg (...) return {n = select('#', ...), ...} end
+
+ local call = function (f, args) return f(table.unpack(args, 1, args.n)) end
+
+ assert(f() == 0)
+ assert(f({1,2,3}, 1, 2, 3) == 3)
+ assert(f({"alo", nil, 45, f, nil}, "alo", nil, 45, f, nil) == 5)
+
+ assert(c12(1,2)==55)
+ a,b = assert(call(c12, {1,2}))
+ assert(a == 55 and b == 2)
+ a = call(c12, {1,2;n=2})
+ assert(a == 55 and b == 2)
+ a = call(c12, {1,2;n=1})
+ assert(not a)
+ assert(c12(1,2,3) == false)
+ local a = vararg(call(next, {_G,nil;n=2}))
+ local b,c = next(_G)
+ assert(a[1] == b and a[2] == c and a.n == 2)
+ a = vararg(call(call, {c12, {1,2}}))
+ assert(a.n == 2 and a[1] == 55 and a[2] == 2)
+ a = call(print, {'+'})
+ assert(a == nil)
+
+ local t = {1, 10}
+ function t:f (...) local arg = {...}; return self[...]+#arg end
+ assert(t:f(1,4) == 3 and t:f(2) == 11)
+ print('+')
+
+ lim = 20
+ local i, a = 1, {}
+ while i <= lim do a[i] = i+0.3; i=i+1 end
+
+ function f(a, b, c, d, ...)
+ local more = {...}
+ assert(a == 1.3 and more[1] == 5.3 and
+ more[lim-4] == lim+0.3 and not more[lim-3])
+ end
+
+ function g(a,b,c)
+ assert(a == 1.3 and b == 2.3 and c == 3.3)
+ end
+
+ call(f, a)
+ call(g, a)
+
+ a = {}
+ i = 1
+ while i <= lim do a[i] = i; i=i+1 end
+ assert(call(math.max, a) == lim)
+ `, L;
+
+ t.plan(2);
+
+ t.doesNotThrow(function () {
+
+ L = lauxlib.luaL_newstate();
+
+ lauxlib.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] vararg: new-style varargs", function (t) {
+ let luaCode = `
+ function oneless (a, ...) return ... end
+
+ function f (n, a, ...)
+ local b
+ assert(arg == _G.arg) -- no local 'arg'
+ if n == 0 then
+ local b, c, d = ...
+ return a, b, c, d, oneless(oneless(oneless(...)))
+ else
+ n, b, a = n-1, ..., a
+ assert(b == ...)
+ return f(n, a, ...)
+ end
+ end
+
+ a,b,c,d,e = assert(f(10,5,4,3,2,1))
+ assert(a==5 and b==4 and c==3 and d==2 and e==1)
+
+ a,b,c,d,e = f(4)
+ assert(a==nil and b==nil and c==nil and d==nil and e==nil)
+ `, L;
+
+ t.plan(2);
+
+ t.doesNotThrow(function () {
+
+ L = lauxlib.luaL_newstate();
+
+ lauxlib.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] vararg: varargs for main chunks", function (t) {
+ let luaCode = `
+ f = load[[ return {...} ]]
+ x = f(2,3)
+ assert(x[1] == 2 and x[2] == 3 and x[3] == nil)
+
+
+ f = load[[
+ local x = {...}
+ for i=1,select('#', ...) do assert(x[i] == select(i, ...)) end
+ assert(x[select('#', ...)+1] == nil)
+ return true
+ ]]
+
+ assert(f("a", "b", nil, {}, assert))
+ assert(f())
+
+ a = {select(3, table.unpack{10,20,30,40})}
+ assert(#a == 2 and a[1] == 30 and a[2] == 40)
+ a = {select(1)}
+ assert(next(a) == nil)
+ a = {select(-1, 3, 5, 7)}
+ assert(a[1] == 7 and a[2] == nil)
+ a = {select(-2, 3, 5, 7)}
+ assert(a[1] == 5 and a[2] == 7 and a[3] == nil)
+ pcall(select, 10000)
+ pcall(select, -10000)
+ `, L;
+
+ t.plan(2);
+
+ t.doesNotThrow(function () {
+
+ L = lauxlib.luaL_newstate();
+
+ lauxlib.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] vararg: bug in 5.2.2", function (t) {
+ let luaCode = `
+ function f(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10,
+ p11, p12, p13, p14, p15, p16, p17, p18, p19, p20,
+ p21, p22, p23, p24, p25, p26, p27, p28, p29, p30,
+ p31, p32, p33, p34, p35, p36, p37, p38, p39, p40,
+ p41, p42, p43, p44, p45, p46, p48, p49, p50, ...)
+ local a1,a2,a3,a4,a5,a6,a7
+ local a8,a9,a10,a11,a12,a13,a14
+ end
+
+ -- assertion fail here
+ f()
+ `, L;
+
+ t.plan(2);
+
+ t.doesNotThrow(function () {
+
+ L = lauxlib.luaL_newstate();
+
+ lauxlib.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");
+
+}); \ No newline at end of file