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-rw-r--r--test/test-suite/utf8.test.js293
1 files changed, 293 insertions, 0 deletions
diff --git a/test/test-suite/utf8.test.js b/test/test-suite/utf8.test.js
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+++ b/test/test-suite/utf8.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 function checkerror (msg, f, ...)
+ local s, err = pcall(f, ...)
+ assert(not s and string.find(err, msg))
+ end
+
+
+ local function len (s)
+ return #string.gsub(s, "[\\x80-\\xBF]", "")
+ end
+
+
+ local justone = "^" .. utf8.charpattern .. "$"
+
+ local function checksyntax (s, t)
+ local ts = {"return '"}
+ for i = 1, #t do ts[i + 1] = string.format("\\\\u{%x}", t[i]) end
+ ts[#t + 2] = "'"
+ ts = table.concat(ts)
+ assert(assert(load(ts))() == s)
+ end
+ -- 't' is the list of codepoints of 's'
+ local function check (s, t)
+ local l = utf8.len(s)
+ assert(#t == l and len(s) == l)
+ assert(utf8.char(table.unpack(t)) == s)
+
+ assert(utf8.offset(s, 0) == 1)
+
+ checksyntax(s, t)
+
+ local t1 = {utf8.codepoint(s, 1, -1)}
+ assert(#t == #t1)
+ for i = 1, #t do assert(t[i] == t1[i]) end
+
+ for i = 1, l do
+ local pi = utf8.offset(s, i) -- position of i-th char
+ local pi1 = utf8.offset(s, 2, pi) -- position of next char
+ assert(string.find(string.sub(s, pi, pi1 - 1), justone))
+ assert(utf8.offset(s, -1, pi1) == pi)
+ assert(utf8.offset(s, i - l - 1) == pi)
+ assert(pi1 - pi == #utf8.char(utf8.codepoint(s, pi)))
+ for j = pi, pi1 - 1 do
+ assert(utf8.offset(s, 0, j) == pi)
+ end
+ for j = pi + 1, pi1 - 1 do
+ assert(not utf8.len(s, j))
+ end
+ assert(utf8.len(s, pi, pi) == 1)
+ assert(utf8.len(s, pi, pi1 - 1) == 1)
+ assert(utf8.len(s, pi) == l - i + 1)
+ assert(utf8.len(s, pi1) == l - i)
+ assert(utf8.len(s, 1, pi) == i)
+ end
+
+ local i = 0
+ for p, c in utf8.codes(s) do
+ i = i + 1
+ assert(c == t[i] and p == utf8.offset(s, i))
+ assert(utf8.codepoint(s, p) == c)
+ end
+ assert(i == #t)
+
+ i = 0
+ for p, c in utf8.codes(s) do
+ i = i + 1
+ assert(c == t[i] and p == utf8.offset(s, i))
+ end
+ assert(i == #t)
+
+ i = 0
+ for c in string.gmatch(s, utf8.charpattern) do
+ i = i + 1
+ assert(c == utf8.char(t[i]))
+ end
+ assert(i == #t)
+
+ for i = 1, l do
+ assert(utf8.offset(s, i) == utf8.offset(s, i - l - 1, #s + 1))
+ end
+
+ end
+
+ local function invalid (s)
+ checkerror("invalid UTF%-8 code", utf8.codepoint, s)
+ assert(not utf8.len(s))
+ end
+`;
+
+test("[test-suite] utf8: offset", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ assert(utf8.offset("alo", 5) == nil)
+ assert(utf8.offset("alo", -4) == nil)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: error indication in utf8.len", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ do
+ local function check (s, p)
+ local a, b = utf8.len(s)
+ assert(not a and b == p)
+ end
+ check("abc\\xE3def", 4)
+ check("汉字\\x80", #("汉字") + 1)
+ check("\\xF4\\x9F\\xBF", 1)
+ check("\\xF4\\x9F\\xBF\\xBF", 1)
+ end
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: error in initial position for offset", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ checkerror("position out of range", utf8.offset, "abc", 1, 5)
+ checkerror("position out of range", utf8.offset, "abc", 1, -4)
+ checkerror("position out of range", utf8.offset, "", 1, 2)
+ checkerror("position out of range", utf8.offset, "", 1, -1)
+ checkerror("continuation byte", utf8.offset, "𦧺", 1, 2)
+ checkerror("continuation byte", utf8.offset, "𦧺", 1, 2)
+ checkerror("continuation byte", utf8.offset, "\\x80", 1)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: codepoints", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ local s = "hello World"
+ local t = {string.byte(s, 1, -1)}
+ for i = 1, utf8.len(s) do assert(t[i] == string.byte(s, i)) end
+ check(s, t)
+
+ check("汉字/漢字", {27721, 23383, 47, 28450, 23383,})
+
+ do
+ local s = "áéí\\128"
+ local t = {utf8.codepoint(s,1,#s - 1)}
+ assert(#t == 3 and t[1] == 225 and t[2] == 233 and t[3] == 237)
+ checkerror("invalid UTF%-8 code", utf8.codepoint, s, 1, #s)
+ checkerror("out of range", utf8.codepoint, s, #s + 1)
+ t = {utf8.codepoint(s, 4, 3)}
+ assert(#t == 0)
+ checkerror("out of range", utf8.codepoint, s, -(#s + 1), 1)
+ checkerror("out of range", utf8.codepoint, s, 1, #s + 1)
+ end
+
+ assert(utf8.char() == "")
+ assert(utf8.char(97, 98, 99) == "abc")
+
+ assert(utf8.codepoint(utf8.char(0x10FFFF)) == 0x10FFFF)
+
+ checkerror("value out of range", utf8.char, 0x10FFFF + 1)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: UTF-8 representation for 0x11ffff (value out of valid range)", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ invalid("\\xF4\\x9F\\xBF\\xBF")
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: overlong sequences", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ invalid("\\xC0\\x80") -- zero
+ invalid("\\xC1\\xBF") -- 0x7F (should be coded in 1 byte)
+ invalid("\\xE0\\x9F\\xBF") -- 0x7FF (should be coded in 2 bytes)
+ invalid("\\xF0\\x8F\\xBF\\xBF") -- 0xFFFF (should be coded in 3 bytes)
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: invalid bytes", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ invalid("\\x80") -- continuation byte
+ invalid("\\xBF") -- continuation byte
+ invalid("\\xFE") -- invalid byte
+ invalid("\\xFF") -- invalid byte
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: empty strings", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ check("", {})
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
+
+
+test("[test-suite] utf8: minimum and maximum values for each sequence size", () => {
+ let L = lauxlib.luaL_newstate();
+ if (!L) throw Error("failed to create lua state");
+
+ let luaCode = prefix + `
+ s = "\\0 \\x7F\\z
+ \\xC2\\x80 \\xDF\\xBF\\z
+ \\xE0\\xA0\\x80 \\xEF\\xBF\\xBF\\z
+ \\xF0\\x90\\x80\\x80 \\xF4\\x8F\\xBF\\xBF"
+ s = string.gsub(s, " ", "")
+ check(s, {0,0x7F, 0x80,0x7FF, 0x800,0xFFFF, 0x10000,0x10FFFF})
+
+ x = "日本語a-4\\0éó"
+ check(x, {26085, 26412, 35486, 97, 45, 52, 0, 233, 243})
+
+ -- Supplementary Characters
+ check("𣲷𠜎𠱓𡁻𠵼ab𠺢",
+ {0x23CB7, 0x2070E, 0x20C53, 0x2107B, 0x20D7C, 0x61, 0x62, 0x20EA2,})
+
+ check("𨳊𩶘𦧺𨳒𥄫𤓓\\xF4\\x8F\\xBF\\xBF",
+ {0x28CCA, 0x29D98, 0x269FA, 0x28CD2, 0x2512B, 0x244D3, 0x10ffff})
+
+
+ local i = 0
+ for p, c in string.gmatch(x, "()(" .. utf8.charpattern .. ")") do
+ i = i + 1
+ assert(utf8.offset(x, i) == p)
+ assert(utf8.len(x, p) == utf8.len(x) - i + 1)
+ assert(utf8.len(c) == 1)
+ for j = 1, #c - 1 do
+ assert(utf8.offset(x, 0, p + j - 1) == p)
+ end
+ end
+ `;
+ lualib.luaL_openlibs(L);
+ if (lauxlib.luaL_loadstring(L, to_luastring(luaCode)) === lua.LUA_ERRSYNTAX)
+ throw new SyntaxError(lua.lua_tojsstring(L, -1));
+ lua.lua_call(L, 0, 0);
+});
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