[test-suite] calls.js

1 files changed, 412 insertions, 0 deletions

diff --git a/tests/test-suite/calls.js b/tests/test-suite/calls.js
new file mode 100644
index 0000000..2c1dc7a
--- /dev/null
+++ b/tests/test-suite/calls.js
@@ -0,0 +1,412 @@
+"use strict";
+
+const test     = require('tape');
+
+const lauxlib  = require("../../src/lauxlib.js");
+const lua      = require('../../src/lua.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();
+
+        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] 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();
+
+        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] 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();
+
+        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] 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();
+
+        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] 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();
+
+        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] 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();
+
+        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] 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();
+
+        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] 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 ()
+            --print(x)
+            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))
+    `, L;
+    
+    t.plan(1);
+
+    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");
+
+});