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-rw-r--r--test/test-suite/sort.test.js452
1 files changed, 452 insertions, 0 deletions
diff --git a/test/test-suite/sort.test.js b/test/test-suite/sort.test.js
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+"use strict";
+
+const lua = require('../../src/lua.js');
+const lauxlib = require('../../src/lauxlib.js');
+const lualib = require('../../src/lualib.js');
+const {to_luastring} = require("../../src/fengaricore.js");
+
+const prefix = `
+ local unpack = table.unpack
+
+ local maxI = math.maxinteger
+ local minI = math.mininteger
+
+
+ local function checkerror (msg, f, ...)
+ local s, err = pcall(f, ...)
+ assert(not s and string.find(err, msg))
+ end
+
+ function timesort (a, n, func, msg, pre)
+ local x = os.clock()
+ table.sort(a, func)
+ x = (os.clock() - x) * 1000
+ pre = pre or ""
+ print(string.format("%ssorting %d %s elements in %.2f msec.", pre, n, msg, x))
+ check(a, func)
+ end
+
+ limit = 50000
+ if _soft then limit = 5000 end
+`;
+
+test("[test-suite] sort: testing unpack", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ checkerror("wrong number of arguments", table.insert, {}, 2, 3, 4)
+
+ local x,y,z,a,n
+ a = {}; lim = _soft and 200 or 2000
+ for i=1, lim do a[i]=i end
+ assert(select(lim, unpack(a)) == lim and select('#', unpack(a)) == lim)
+ x = unpack(a)
+ assert(x == 1)
+ x = {unpack(a)}
+ assert(#x == lim and x[1] == 1 and x[lim] == lim)
+ x = {unpack(a, lim-2)}
+ assert(#x == 3 and x[1] == lim-2 and x[3] == lim)
+ x = {unpack(a, 10, 6)}
+ assert(next(x) == nil) -- no elements
+ x = {unpack(a, 11, 10)}
+ assert(next(x) == nil) -- no elements
+ x,y = unpack(a, 10, 10)
+ assert(x == 10 and y == nil)
+ x,y,z = unpack(a, 10, 11)
+ assert(x == 10 and y == 11 and z == nil)
+ a,x = unpack{1}
+ assert(a==1 and x==nil)
+ a,x = unpack({1,2}, 1, 1)
+ assert(a==1 and x==nil)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: testing unpack", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ do
+ local maxi = (1 << 31) - 1 -- maximum value for an int (usually)
+ local mini = -(1 << 31) -- minimum value for an int (usually)
+ checkerror("too many results", unpack, {}, 0, maxi)
+ checkerror("too many results", unpack, {}, 1, maxi)
+ checkerror("too many results", unpack, {}, 0, maxI)
+ checkerror("too many results", unpack, {}, 1, maxI)
+ checkerror("too many results", unpack, {}, mini, maxi)
+ checkerror("too many results", unpack, {}, -maxi, maxi)
+ checkerror("too many results", unpack, {}, minI, maxI)
+ unpack({}, maxi, 0)
+ unpack({}, maxi, 1)
+ unpack({}, maxI, minI)
+ pcall(unpack, {}, 1, maxi + 1)
+ local a, b = unpack({[maxi] = 20}, maxi, maxi)
+ assert(a == 20 and b == nil)
+ a, b = unpack({[maxi] = 20}, maxi - 1, maxi)
+ assert(a == nil and b == 20)
+ local t = {[maxI - 1] = 12, [maxI] = 23}
+ a, b = unpack(t, maxI - 1, maxI); assert(a == 12 and b == 23)
+ a, b = unpack(t, maxI, maxI); assert(a == 23 and b == nil)
+ a, b = unpack(t, maxI, maxI - 1); assert(a == nil and b == nil)
+ t = {[minI] = 12.3, [minI + 1] = 23.5}
+ a, b = unpack(t, minI, minI + 1); assert(a == 12.3 and b == 23.5)
+ a, b = unpack(t, minI, minI); assert(a == 12.3 and b == nil)
+ a, b = unpack(t, minI + 1, minI); assert(a == nil and b == nil)
+ end
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: testing unpack", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ do -- length is not an integer
+ local t = setmetatable({}, {__len = function () return 'abc' end})
+ assert(#t == 'abc')
+ checkerror("object length is not an integer", table.insert, t, 1)
+ end
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: testing pack", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ a = table.pack()
+ assert(a[1] == nil and a.n == 0)
+
+ a = table.pack(table)
+ assert(a[1] == table and a.n == 1)
+
+ a = table.pack(nil, nil, nil, nil)
+ assert(a[1] == nil and a.n == 4)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: testing move", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ do
+
+ checkerror("table expected", table.move, 1, 2, 3, 4)
+
+ local function eqT (a, b)
+ for k, v in pairs(a) do assert(b[k] == v) end
+ for k, v in pairs(b) do assert(a[k] == v) end
+ end
+
+ local a = table.move({10,20,30}, 1, 3, 2) -- move forward
+ eqT(a, {10,10,20,30})
+
+ -- move forward with overlap of 1
+ a = table.move({10, 20, 30}, 1, 3, 3)
+ eqT(a, {10, 20, 10, 20, 30})
+
+ -- moving to the same table (not being explicit about it)
+ a = {10, 20, 30, 40}
+ table.move(a, 1, 4, 2, a)
+ eqT(a, {10, 10, 20, 30, 40})
+
+ a = table.move({10,20,30}, 2, 3, 1) -- move backward
+ eqT(a, {20,30,30})
+
+ a = {} -- move to new table
+ assert(table.move({10,20,30}, 1, 3, 1, a) == a)
+ eqT(a, {10,20,30})
+
+ a = {}
+ assert(table.move({10,20,30}, 1, 0, 3, a) == a) -- empty move (no move)
+ eqT(a, {})
+
+ a = table.move({10,20,30}, 1, 10, 1) -- move to the same place
+ eqT(a, {10,20,30})
+
+ -- moving on the fringes
+ a = table.move({[maxI - 2] = 1, [maxI - 1] = 2, [maxI] = 3},
+ maxI - 2, maxI, -10, {})
+ eqT(a, {[-10] = 1, [-9] = 2, [-8] = 3})
+
+ a = table.move({[minI] = 1, [minI + 1] = 2, [minI + 2] = 3},
+ minI, minI + 2, -10, {})
+ eqT(a, {[-10] = 1, [-9] = 2, [-8] = 3})
+
+ a = table.move({45}, 1, 1, maxI)
+ eqT(a, {45, [maxI] = 45})
+
+ a = table.move({[maxI] = 100}, maxI, maxI, minI)
+ eqT(a, {[minI] = 100, [maxI] = 100})
+
+ a = table.move({[minI] = 100}, minI, minI, maxI)
+ eqT(a, {[minI] = 100, [maxI] = 100})
+
+ a = setmetatable({}, {
+ __index = function (_,k) return k * 10 end,
+ __newindex = error})
+ local b = table.move(a, 1, 10, 3, {})
+ eqT(a, {})
+ eqT(b, {nil,nil,10,20,30,40,50,60,70,80,90,100})
+
+ b = setmetatable({""}, {
+ __index = error,
+ __newindex = function (t,k,v)
+ t[1] = string.format("%s(%d,%d)", t[1], k, v)
+ end})
+ table.move(a, 10, 13, 3, b)
+ assert(b[1] == "(3,100)(4,110)(5,120)(6,130)")
+ local stat, msg = pcall(table.move, b, 10, 13, 3, b)
+ assert(not stat and msg == b)
+ end
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: testing long move", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ do
+ -- for very long moves, just check initial accesses and interrupt
+ -- move with an error
+ local function checkmove (f, e, t, x, y)
+ local pos1, pos2
+ local a = setmetatable({}, {
+ __index = function (_,k) pos1 = k end,
+ __newindex = function (_,k) pos2 = k; error() end, })
+ local st, msg = pcall(table.move, a, f, e, t)
+ assert(not st and not msg and pos1 == x and pos2 == y)
+ end
+ checkmove(1, maxI, 0, 1, 0)
+ checkmove(0, maxI - 1, 1, maxI - 1, maxI)
+ checkmove(minI, -2, -5, -2, maxI - 6)
+ checkmove(minI + 1, -1, -2, -1, maxI - 3)
+ checkmove(minI, -2, 0, minI, 0) -- non overlapping
+ checkmove(minI + 1, -1, 1, minI + 1, 1) -- non overlapping
+ end
+
+ checkerror("too many", table.move, {}, 0, maxI, 1)
+ checkerror("too many", table.move, {}, -1, maxI - 1, 1)
+ checkerror("too many", table.move, {}, minI, -1, 1)
+ checkerror("too many", table.move, {}, minI, maxI, 1)
+ checkerror("wrap around", table.move, {}, 1, maxI, 2)
+ checkerror("wrap around", table.move, {}, 1, 2, maxI)
+ checkerror("wrap around", table.move, {}, minI, -2, 2)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: testing sort, strange lengths", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ local a = setmetatable({}, {__len = function () return -1 end})
+ assert(#a == -1)
+ table.sort(a, error) -- should not compare anything
+ a = setmetatable({}, {__len = function () return maxI end})
+ checkerror("too big", table.sort, a)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: test checks for invalid order functions", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ local function check (t)
+ local function f(a, b) assert(a and b); return true end
+ checkerror("invalid order function", table.sort, t, f)
+ end
+
+ check{1,2,3,4}
+ check{1,2,3,4,5}
+ check{1,2,3,4,5,6}
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: sort alpha", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ function check (a, f)
+ f = f or function (x,y) return x<y end;
+ for n = #a, 2, -1 do
+ assert(not f(a[n], a[n-1]))
+ end
+ end
+
+ a = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
+ "Oct", "Nov", "Dec"}
+
+ table.sort(a)
+ check(a)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: sort perm", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ function check (a, f)
+ f = f or function (x,y) return x<y end;
+ for n = #a, 2, -1 do
+ assert(not f(a[n], a[n-1]))
+ end
+ end
+
+ function perm (s, n)
+ n = n or #s
+ if n == 1 then
+ local t = {unpack(s)}
+ table.sort(t)
+ check(t)
+ else
+ for i = 1, n do
+ s[i], s[n] = s[n], s[i]
+ perm(s, n - 1)
+ s[i], s[n] = s[n], s[i]
+ end
+ end
+ end
+
+ perm{}
+ perm{1}
+ perm{1,2}
+ perm{1,2,3}
+ perm{1,2,3,4}
+ perm{2,2,3,4}
+ perm{1,2,3,4,5}
+ perm{1,2,3,3,5}
+ perm{1,2,3,4,5,6}
+ perm{2,2,3,3,5,6}
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: Invert-sorting", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ function check (a, f)
+ f = f or function (x,y) return x<y end;
+ for n = #a, 2, -1 do
+ assert(not f(a[n], a[n-1]))
+ end
+ end
+
+ a = {}
+ for i=1,limit do
+ a[i] = math.random()
+ end
+
+ x = os.clock(); i=0
+ table.sort(a, function(x,y) i=i+1; return y<x end)
+ x = (os.clock() - x) * 1000
+ print(string.format("Invert-sorting other %d elements in %.2f msec., with %i comparisons",
+ limit, x, i))
+ check(a, function(x,y) return y<x end)
+
+ table.sort{} -- empty array
+
+ for i=1,limit do a[i] = false end
+ timesort(a, limit, function(x,y) return nil end, "equal")
+
+ for i,v in pairs(a) do assert(v == false) end
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] sort: sorting", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = `
+ function check (a, f)
+ f = f or function (x,y) return x<y end;
+ for n = #a, 2, -1 do
+ assert(not f(a[n], a[n-1]))
+ end
+ end
+
+ A = {"álo", "\\0first :-)", "alo", "then this one", "45", "and a new"}
+ table.sort(A)
+ check(A)
+
+ table.sort(A, function (x, y)
+ load(string.format("A[%q] = ''", x), "")()
+ -- collectgarbage()
+ return x<y
+ end)
+
+
+ tt = {__lt = function (a,b) return a.val < b.val end}
+ a = {}
+ for i=1,10 do a[i] = {val=math.random(100)}; setmetatable(a[i], tt); end
+ table.sort(a)
+ check(a, tt.__lt)
+ check(a)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(prefix + luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
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