diff options
Diffstat (limited to 'tests/test-suite')
| -rw-r--r-- | tests/test-suite/vararg.js | 226 |
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"); + +});
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