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-rw-r--r--tests/test-suite/inprogress/bitwise.js504
1 files changed, 0 insertions, 504 deletions
diff --git a/tests/test-suite/inprogress/bitwise.js b/tests/test-suite/inprogress/bitwise.js
deleted file mode 100644
index b742b45..0000000
--- a/tests/test-suite/inprogress/bitwise.js
+++ /dev/null
@@ -1,504 +0,0 @@
-"use strict";
-
-const test = require('tape');
-
-global.WEB = false;
-
-const lua = require('../../../src/lua.js');
-const lauxlib = require('../../../src/lauxlib.js');
-const lualib = require('../../../src/lualib.js');
-
-
-const prefix = `
- package.preload.bit32 = function () --{
-
- -- no built-in 'bit32' library: implement it using bitwise operators
-
- local bit = {}
-
- function bit.bnot (a)
- return ~a & 0xFFFFFFFF
- end
-
-
- --
- -- in all vararg functions, avoid creating 'arg' table when there are
- -- only 2 (or less) parameters, as 2 parameters is the common case
- --
-
- function bit.band (x, y, z, ...)
- if not z then
- return ((x or -1) & (y or -1)) & 0xFFFFFFFF
- else
- local arg = {...}
- local res = x & y & z
- for i = 1, #arg do res = res & arg[i] end
- return res & 0xFFFFFFFF
- end
- end
-
- function bit.bor (x, y, z, ...)
- if not z then
- return ((x or 0) | (y or 0)) & 0xFFFFFFFF
- else
- local arg = {...}
- local res = x | y | z
- for i = 1, #arg do res = res | arg[i] end
- return res & 0xFFFFFFFF
- end
- end
-
- function bit.bxor (x, y, z, ...)
- if not z then
- return ((x or 0) ~ (y or 0)) & 0xFFFFFFFF
- else
- local arg = {...}
- local res = x ~ y ~ z
- for i = 1, #arg do res = res ~ arg[i] end
- return res & 0xFFFFFFFF
- end
- end
-
- function bit.btest (...)
- return bit.band(...) ~= 0
- end
-
- function bit.lshift (a, b)
- return ((a & 0xFFFFFFFF) << b) & 0xFFFFFFFF
- end
-
- function bit.rshift (a, b)
- return ((a & 0xFFFFFFFF) >> b) & 0xFFFFFFFF
- end
-
- function bit.arshift (a, b)
- a = a & 0xFFFFFFFF
- if b <= 0 or (a & 0x80000000) == 0 then
- return (a >> b) & 0xFFFFFFFF
- else
- return ((a >> b) | ~(0xFFFFFFFF >> b)) & 0xFFFFFFFF
- end
- end
-
- function bit.lrotate (a ,b)
- b = b & 31
- a = a & 0xFFFFFFFF
- a = (a << b) | (a >> (32 - b))
- return a & 0xFFFFFFFF
- end
-
- function bit.rrotate (a, b)
- return bit.lrotate(a, -b)
- end
-
- local function checkfield (f, w)
- w = w or 1
- assert(f >= 0, "field cannot be negative")
- assert(w > 0, "width must be positive")
- assert(f + w <= 32, "trying to access non-existent bits")
- return f, ~(-1 << w)
- end
-
- function bit.extract (a, f, w)
- local f, mask = checkfield(f, w)
- return (a >> f) & mask
- end
-
- function bit.replace (a, v, f, w)
- local f, mask = checkfield(f, w)
- v = v & mask
- a = (a & ~(mask << f)) | (v << f)
- return a & 0xFFFFFFFF
- end
-
- return bit
-
- end --}
-
- local bit32 = require'bit32'
-`;
-
-test("[test-suite] bitwise: testing bitwise operations", function (t) {
- let luaCode = `
- local numbits = string.packsize('j') * 8
-
- assert(~0 == -1)
-
- assert((1 << (numbits - 1)) == math.mininteger)
-
- -- basic tests for bitwise operators;
- -- use variables to avoid constant folding
- local a, b, c, d
- a = 0xFFFFFFFFFFFFFFFF
- assert(a == -1 and a & -1 == a and a & 35 == 35)
- a = 0xF0F0F0F0F0F0F0F0
- assert(a | -1 == -1)
- assert(a ~ a == 0 and a ~ 0 == a and a ~ ~a == -1)
- assert(a >> 4 == ~a)
- a = 0xF0; b = 0xCC; c = 0xAA; d = 0xFD
- assert(a | b ~ c & d == 0xF4)
-
- a = 0xF0.0; b = 0xCC.0; c = "0xAA.0"; d = "0xFD.0"
- assert(a | b ~ c & d == 0xF4)
-
- a = 0xF0000000; b = 0xCC000000;
- c = 0xAA000000; d = 0xFD000000
- assert(a | b ~ c & d == 0xF4000000)
- assert(~~a == a and ~a == -1 ~ a and -d == ~d + 1)
-
- a = a << 32
- b = b << 32
- c = c << 32
- d = d << 32
- assert(a | b ~ c & d == 0xF4000000 << 32)
- assert(~~a == a and ~a == -1 ~ a and -d == ~d + 1)
-
- assert(-1 >> 1 == (1 << (numbits - 1)) - 1 and 1 << 31 == 0x80000000)
- assert(-1 >> (numbits - 1) == 1)
- assert(-1 >> numbits == 0 and
- -1 >> -numbits == 0 and
- -1 << numbits == 0 and
- -1 << -numbits == 0)
-
- assert((2^30 - 1) << 2^30 == 0)
- assert((2^30 - 1) >> 2^30 == 0)
-
- assert(1 >> -3 == 1 << 3 and 1000 >> 5 == 1000 << -5)
-
-
- -- coercion from strings to integers
- assert("0xffffffffffffffff" | 0 == -1)
- assert("0xfffffffffffffffe" & "-1" == -2)
- assert(" \\t-0xfffffffffffffffe\\n\\t" & "-1" == 2)
- assert(" \\n -45 \\t " >> " -2 " == -45 * 4)
-
- -- out of range number
- assert(not pcall(function () return "0xffffffffffffffff.0" | 0 end))
-
- -- embedded zeros
- assert(not pcall(function () return "0xffffffffffffffff\\0" | 0 end))
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: testing bitwise library", function (t) {
- let luaCode = `
- assert(bit32.band() == bit32.bnot(0))
- assert(bit32.btest() == true)
- assert(bit32.bor() == 0)
- assert(bit32.bxor() == 0)
-
- assert(bit32.band() == bit32.band(0xffffffff))
- assert(bit32.band(1,2) == 0)
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: out-of-range numbers", function (t) {
- let luaCode = `
- assert(bit32.band(-1) == 0xffffffff)
- assert(bit32.band((1 << 33) - 1) == 0xffffffff)
- assert(bit32.band(-(1 << 33) - 1) == 0xffffffff)
- assert(bit32.band((1 << 33) + 1) == 1)
- assert(bit32.band(-(1 << 33) + 1) == 1)
- assert(bit32.band(-(1 << 40)) == 0)
- assert(bit32.band(1 << 40) == 0)
- assert(bit32.band(-(1 << 40) - 2) == 0xfffffffe)
- assert(bit32.band((1 << 40) - 4) == 0xfffffffc)
-
- assert(bit32.lrotate(0, -1) == 0)
- assert(bit32.lrotate(0, 7) == 0)
- assert(bit32.lrotate(0x12345678, 0) == 0x12345678)
- assert(bit32.lrotate(0x12345678, 32) == 0x12345678)
- assert(bit32.lrotate(0x12345678, 4) == 0x23456781)
- assert(bit32.rrotate(0x12345678, -4) == 0x23456781)
- assert(bit32.lrotate(0x12345678, -8) == 0x78123456)
- assert(bit32.rrotate(0x12345678, 8) == 0x78123456)
- assert(bit32.lrotate(0xaaaaaaaa, 2) == 0xaaaaaaaa)
- assert(bit32.lrotate(0xaaaaaaaa, -2) == 0xaaaaaaaa)
- for i = -50, 50 do
- assert(bit32.lrotate(0x89abcdef, i) == bit32.lrotate(0x89abcdef, i%32))
- end
-
- assert(bit32.lshift(0x12345678, 4) == 0x23456780)
- assert(bit32.lshift(0x12345678, 8) == 0x34567800)
- assert(bit32.lshift(0x12345678, -4) == 0x01234567)
- assert(bit32.lshift(0x12345678, -8) == 0x00123456)
- assert(bit32.lshift(0x12345678, 32) == 0)
- assert(bit32.lshift(0x12345678, -32) == 0)
- assert(bit32.rshift(0x12345678, 4) == 0x01234567)
- assert(bit32.rshift(0x12345678, 8) == 0x00123456)
- assert(bit32.rshift(0x12345678, 32) == 0)
- assert(bit32.rshift(0x12345678, -32) == 0)
- assert(bit32.arshift(0x12345678, 0) == 0x12345678)
- assert(bit32.arshift(0x12345678, 1) == 0x12345678 // 2)
- assert(bit32.arshift(0x12345678, -1) == 0x12345678 * 2)
- assert(bit32.arshift(-1, 1) == 0xffffffff)
- assert(bit32.arshift(-1, 24) == 0xffffffff)
- assert(bit32.arshift(-1, 32) == 0xffffffff)
- assert(bit32.arshift(-1, -1) == bit32.band(-1 * 2, 0xffffffff))
-
- assert(0x12345678 << 4 == 0x123456780)
- assert(0x12345678 << 8 == 0x1234567800)
- assert(0x12345678 << -4 == 0x01234567)
- assert(0x12345678 << -8 == 0x00123456)
- assert(0x12345678 << 32 == 0x1234567800000000)
- assert(0x12345678 << -32 == 0)
- assert(0x12345678 >> 4 == 0x01234567)
- assert(0x12345678 >> 8 == 0x00123456)
- assert(0x12345678 >> 32 == 0)
- assert(0x12345678 >> -32 == 0x1234567800000000)
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: some special cases", function (t) {
- let luaCode = `
- local c = {0, 1, 2, 3, 10, 0x80000000, 0xaaaaaaaa, 0x55555555,
- 0xffffffff, 0x7fffffff}
-
- for _, b in pairs(c) do
- assert(bit32.band(b) == b)
- assert(bit32.band(b, b) == b)
- assert(bit32.band(b, b, b, b) == b)
- assert(bit32.btest(b, b) == (b ~= 0))
- assert(bit32.band(b, b, b) == b)
- assert(bit32.band(b, b, b, ~b) == 0)
- assert(bit32.btest(b, b, b) == (b ~= 0))
- assert(bit32.band(b, bit32.bnot(b)) == 0)
- assert(bit32.bor(b, bit32.bnot(b)) == bit32.bnot(0))
- assert(bit32.bor(b) == b)
- assert(bit32.bor(b, b) == b)
- assert(bit32.bor(b, b, b) == b)
- assert(bit32.bor(b, b, 0, ~b) == 0xffffffff)
- assert(bit32.bxor(b) == b)
- assert(bit32.bxor(b, b) == 0)
- assert(bit32.bxor(b, b, b) == b)
- assert(bit32.bxor(b, b, b, b) == 0)
- assert(bit32.bxor(b, 0) == b)
- assert(bit32.bnot(b) ~= b)
- assert(bit32.bnot(bit32.bnot(b)) == b)
- assert(bit32.bnot(b) == (1 << 32) - 1 - b)
- assert(bit32.lrotate(b, 32) == b)
- assert(bit32.rrotate(b, 32) == b)
- assert(bit32.lshift(bit32.lshift(b, -4), 4) == bit32.band(b, bit32.bnot(0xf)))
- assert(bit32.rshift(bit32.rshift(b, 4), -4) == bit32.band(b, bit32.bnot(0xf)))
- end
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: for this test, use at most 24 bits (mantissa of a single float)", function (t) {
- let luaCode = `
- c = {0, 1, 2, 3, 10, 0x800000, 0xaaaaaa, 0x555555, 0xffffff, 0x7fffff}
- for _, b in pairs(c) do
- for i = -40, 40 do
- local x = bit32.lshift(b, i)
- local y = math.floor(math.fmod(b * 2.0^i, 2.0^32))
- assert(math.fmod(x - y, 2.0^32) == 0)
- end
- end
-
- assert(not pcall(bit32.band, {}))
- assert(not pcall(bit32.bnot, "a"))
- assert(not pcall(bit32.lshift, 45))
- assert(not pcall(bit32.lshift, 45, print))
- assert(not pcall(bit32.rshift, 45, print))
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: testing extract/replace", function (t) {
- let luaCode = `
- assert(bit32.extract(0x12345678, 0, 4) == 8)
- assert(bit32.extract(0x12345678, 4, 4) == 7)
- assert(bit32.extract(0xa0001111, 28, 4) == 0xa)
- assert(bit32.extract(0xa0001111, 31, 1) == 1)
- assert(bit32.extract(0x50000111, 31, 1) == 0)
- assert(bit32.extract(0xf2345679, 0, 32) == 0xf2345679)
-
- assert(not pcall(bit32.extract, 0, -1))
- assert(not pcall(bit32.extract, 0, 32))
- assert(not pcall(bit32.extract, 0, 0, 33))
- assert(not pcall(bit32.extract, 0, 31, 2))
-
- assert(bit32.replace(0x12345678, 5, 28, 4) == 0x52345678)
- assert(bit32.replace(0x12345678, 0x87654321, 0, 32) == 0x87654321)
- assert(bit32.replace(0, 1, 2) == 2^2)
- assert(bit32.replace(0, -1, 4) == 2^4)
- assert(bit32.replace(-1, 0, 31) == (1 << 31) - 1)
- assert(bit32.replace(-1, 0, 1, 2) == (1 << 32) - 7)
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: testing conversion of floats", function (t) {
- let luaCode = `
- assert(bit32.bor(3.0) == 3)
- assert(bit32.bor(-4.0) == 0xfffffffc)
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] bitwise: large floats and large-enough integers?", function (t) {
- let luaCode = `
- if 2.0^50 < 2.0^50 + 1.0 and 2.0^50 < (-1 >> 1) then
- assert(bit32.bor(2.0^32 - 5.0) == 0xfffffffb)
- assert(bit32.bor(-2.0^32 - 6.0) == 0xfffffffa)
- assert(bit32.bor(2.0^48 - 5.0) == 0xfffffffb)
- assert(bit32.bor(-2.0^48 - 6.0) == 0xfffffffa)
- end
- `, L;
-
- t.plan(2);
-
- t.doesNotThrow(function () {
-
- L = lauxlib.luaL_newstate();
-
- lualib.luaL_openlibs(L);
-
- lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
- }, "Lua program loaded without error");
-
- t.doesNotThrow(function () {
-
- lua.lua_call(L, 0, -1);
-
- }, "Lua program ran without error");
-
-});
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