db.js now passes

1 files changed, 0 insertions, 1442 deletions

diff --git a/tests/test-suite/inprogress/db.js b/tests/test-suite/inprogress/db.js
deleted file mode 100644
index 961014b..0000000
--- a/tests/test-suite/inprogress/db.js
+++ /dev/null
@@ -1,1442 +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 = `
-    local function dostring(s) return assert(load(s))() end
-
-    local testline = 5          -- line where 'test' is defined
-    function test (s, l, p)     -- this must be line 5
-      local a = 1 -- do something that's active instead of collectgarbage()
-      local function f (event, line)
-        assert(event == 'line')
-        local l = table.remove(l, 1)
-        if p then print(l, line) end
-        assert(l == line, "wrong trace!!")
-      end
-      debug.sethook(f,"l"); load(s)(); debug.sethook()
-      assert(#l == 0)
-    end
-`;
-
-test("[test-suite] db: getinfo, ...line...", function (t) {
-    let luaCode = `
-        assert(not pcall(debug.getinfo, print, "X"))   -- invalid option
-        assert(not debug.getinfo(1000))   -- out of range level
-        assert(not debug.getinfo(-1))     -- out of range level
-        local a = debug.getinfo(print)
-        assert(a.what == "J" and a.short_src == "[JS]")
-        a = debug.getinfo(print, "L")
-        assert(a.activelines == nil)
-        local b = debug.getinfo(test, "SfL")
-        assert(b.name == nil and b.what == "Lua" and b.linedefined == testline and
-               b.lastlinedefined == b.linedefined + 10 and
-               b.func == test and string.find(b.short_src, "%["))
-        assert(b.activelines[b.linedefined + 1] and
-               b.activelines[b.lastlinedefined])
-        assert(not b.activelines[b.linedefined] and
-               not b.activelines[b.lastlinedefined + 1])
-    `, 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] db: test file ad string names truncation", function (t) {
-    let luaCode = `
-        a = "function f () end"
-        local function dostring (s, x) return load(s, x)() end
-        dostring(a)
-        assert(debug.getinfo(f).short_src == string.format('[string "%s"]', a))
-        dostring(a..string.format("; %s\\n=1", string.rep('p', 400)))
-        assert(string.find(debug.getinfo(f).short_src, '^%[string [^\\n]*%.%.%."%]$'))
-        dostring(a..string.format("; %s=1", string.rep('p', 400)))
-        assert(string.find(debug.getinfo(f).short_src, '^%[string [^\\n]*%.%.%."%]$'))
-        dostring("\\n"..a)
-        assert(debug.getinfo(f).short_src == '[string "..."]')
-        dostring(a, "")
-        assert(debug.getinfo(f).short_src == '[string ""]')
-        dostring(a, "@xuxu")
-        assert(debug.getinfo(f).short_src == "xuxu")
-        dostring(a, "@"..string.rep('p', 1000)..'t')
-        assert(string.find(debug.getinfo(f).short_src, "^%.%.%.p*t$"))
-        dostring(a, "=xuxu")
-        assert(debug.getinfo(f).short_src == "xuxu")
-        dostring(a, string.format("=%s", string.rep('x', 500)))
-        assert(string.find(debug.getinfo(f).short_src, "^x*$"))
-        dostring(a, "=")
-        assert(debug.getinfo(f).short_src == "")
-        a = nil; f = nil;
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: local", function (t) {
-    let luaCode = `
-        repeat
-          local g = {x = function ()
-            local a = debug.getinfo(2)
-            assert(a.name == 'f' and a.namewhat == 'local')
-            a = debug.getinfo(1)
-            assert(a.name == 'x' and a.namewhat == 'field')
-            return 'xixi'
-          end}
-          local f = function () return 1+1 and (not 1 or g.x()) end
-          assert(f() == 'xixi')
-          g = debug.getinfo(f)
-          assert(g.what == "Lua" and g.func == f and g.namewhat == "" and not g.name)
-
-          function f (x, name)   -- local!
-            name = name or 'f'
-            local a = debug.getinfo(1)
-            assert(a.name == name and a.namewhat == 'local')
-            return x
-          end
-
-          -- breaks in different conditions
-          if 3>4 then break end; f()
-          if 3<4 then a=1 else break end; f()
-          while 1 do local x=10; break end; f()
-          local b = 1
-          if 3>4 then return math.sin(1) end; f()
-          a = 3<4; f()
-          a = 3<4 or 1; f()
-          repeat local x=20; if 4>3 then f() else break end; f() until 1
-          g = {}
-          f(g).x = f(2) and f(10)+f(9)
-          assert(g.x == f(19))
-          function g(x) if not x then return 3 end return (x('a', 'x')) end
-          assert(g(f) == 'a')
-        until 1
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: line hook", function (t) {
-    let luaCode = `
-        test([[if
-        math.sin(1)
-        then
-          a=1
-        else
-          a=2
-        end
-        ]], {2,3,4,7})
-
-        test([[--
-        if nil then
-          a=1
-        else
-          a=2
-        end
-        ]], {2,5,6})
-
-        test([[a=1
-        repeat
-          a=a+1
-        until a==3
-        ]], {1,3,4,3,4})
-
-        test([[ do
-          return
-        end
-        ]], {2})
-
-        test([[local a
-        a=1
-        while a<=3 do
-          a=a+1
-        end
-        ]], {1,2,3,4,3,4,3,4,3,5})
-
-        test([[while math.sin(1) do
-          if math.sin(1)
-          then break
-          end
-        end
-        a=1]], {1,2,3,6})
-
-        test([[for i=1,3 do
-          a=i
-        end
-        ]], {1,2,1,2,1,2,1,3})
-
-        test([[for i,v in pairs{'a','b'} do
-          a=tostring(i) .. v
-        end
-        ]], {1,2,1,2,1,3})
-
-        test([[for i=1,4 do a=1 end]], {1,1,1,1,1})
-    `, 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] db: invalid levels in [gs]etlocal", function (t) {
-    let luaCode = `
-        assert(not pcall(debug.getlocal, 20, 1))
-        assert(not pcall(debug.setlocal, -1, 1, 10))
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: parameter names", function (t) {
-    let luaCode = `
-        local function foo (a,b,...) local d, e end
-        local co = coroutine.create(foo)
-
-        assert(debug.getlocal(foo, 1) == 'a')
-        assert(debug.getlocal(foo, 2) == 'b')
-        assert(not debug.getlocal(foo, 3))
-        assert(debug.getlocal(co, foo, 1) == 'a')
-        assert(debug.getlocal(co, foo, 2) == 'b')
-        assert(not debug.getlocal(co, foo, 3))
-
-        assert(not debug.getlocal(print, 1))
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: vararg", function (t) {
-    let luaCode = `
-        local function foo (a, ...)
-          local t = table.pack(...)
-          for i = 1, t.n do
-            local n, v = debug.getlocal(1, -i)
-            assert(n == "(*vararg)" and v == t[i])
-          end
-          assert(not debug.getlocal(1, -(t.n + 1)))
-          assert(not debug.setlocal(1, -(t.n + 1), 30))
-          if t.n > 0 then
-            (function (x)
-              assert(debug.setlocal(2, -1, x) == "(*vararg)")
-              assert(debug.setlocal(2, -t.n, x) == "(*vararg)")
-             end)(430)
-             assert(... == 430)
-          end
-        end
-
-        foo()
-        foo(print)
-        foo(200, 3, 4)
-        local a = {}
-        for i = 1, (_soft and 100 or 1000) do a[i] = i end
-        foo(table.unpack(a))
-        a = nil
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: access to vararg in non-vararg function", function (t) {
-    let luaCode = `
-        local function foo () return debug.getlocal(1, -1) end
-        assert(not foo(10))
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: test hook presence in debug info", function (t) {
-    let luaCode = `
-        do   -- test hook presence in debug info
-          assert(not debug.gethook())
-          local count = 0
-          local function f ()
-            assert(debug.getinfo(1).namewhat == "hook")
-            local sndline = string.match(debug.traceback(), "\\n(.-)\\n")
-            assert(string.find(sndline, "hook"))
-            count = count + 1
-          end
-          debug.sethook(f, "l")
-          local a = 0
-          _ENV.a = a
-          a = 1
-          debug.sethook()
-          assert(count == 4)
-        end
-
-        a = {}; L = nil
-        local glob = 1
-        local oldglob = glob
-        debug.sethook(function (e,l)
-          -- collectgarbage()   -- force GC during a hook
-          local f, m, c = debug.gethook()
-          assert(m == 'crl' and c == 0)
-          if e == "line" then
-            if glob ~= oldglob then
-              L = l-1   -- get the first line where "glob" has changed
-              oldglob = glob
-            end
-          elseif e == "call" then
-              local f = debug.getinfo(2, "f").func
-              a[f] = 1
-          else assert(e == "return")
-          end
-        end, "crl")
-
-
-        function f(a,b)
-          -- collectgarbage()
-          local _, x = debug.getlocal(1, 1)
-          local _, y = debug.getlocal(1, 2)
-          assert(x == a and y == b)
-          assert(debug.setlocal(2, 3, "pera") == "AA".."AA")
-          assert(debug.setlocal(2, 4, "maçã") == "B")
-          x = debug.getinfo(2)
-          assert(x.func == g and x.what == "Lua" and x.name == 'g' and x.nups == 1)
-          glob = glob+1
-          assert(debug.getinfo(1, "l").currentline == L+1)
-          assert(debug.getinfo(1, "l").currentline == L+2)
-        end
-
-        function foo()
-          glob = glob+1
-          assert(debug.getinfo(1, "l").currentline == L+1)
-        end; foo()  -- set L
-        -- check line counting inside strings and empty lines
-
-        _ = 'alo\\
-        alo' .. [[
-
-        ]]
-        --[[
-        ]]
-        assert(debug.getinfo(1, "l").currentline == L+11)  -- check count of lines
-
-
-        function g(...)
-          local arg = {...}
-          do local a,b,c; a=math.sin(40); end
-          local feijao
-          local AAAA,B = "xuxu", "mamão"
-          f(AAAA,B)
-          assert(AAAA == "pera" and B == "maçã")
-          do
-             local B = 13
-             local x,y = debug.getlocal(1,5)
-             assert(x == 'B' and y == 13)
-          end
-        end
-
-        g()
-
-        assert(a[f] and a[g] and a[assert] and a[debug.getlocal] and not a[print])
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: tests for manipulating non-registered locals (C and Lua temporaries)", function (t) {
-    let luaCode = `
-        local n, v = debug.getlocal(0, 1)
-        assert(v == 0 and n == "(*temporary)")
-        local n, v = debug.getlocal(0, 2)
-        assert(v == 2 and n == "(*temporary)")
-        assert(not debug.getlocal(0, 3))
-        assert(not debug.getlocal(0, 0))
-
-        function f()
-          assert(select(2, debug.getlocal(2,3)) == 1)
-          assert(not debug.getlocal(2,4))
-          debug.setlocal(2, 3, 10)
-          return 20
-        end
-
-        function g(a,b) return (a+1) + f() end
-
-        assert(g(0,0) == 30)
-         
-
-        debug.sethook(nil);
-        assert(debug.gethook() == nil)
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing access to function arguments", function (t) {
-    let luaCode = `
-        local function collectlocals (level)
-          local tab = {}
-          for i = 1, math.huge do
-            local n, v = debug.getlocal(level + 1, i)
-            if not (n and string.find(n, "^[a-zA-Z0-9_]+$")) then
-               break   -- consider only real variables
-            end
-            tab[n] = v
-          end
-          return tab
-        end
-
-
-        X = nil
-        a = {}
-        function a:f (a, b, ...) local arg = {...}; local c = 13 end
-        debug.sethook(function (e)
-          assert(e == "call")
-          dostring("XX = 12")  -- test dostring inside hooks
-          -- testing errors inside hooks
-          assert(not pcall(load("a='joao'+1")))
-          debug.sethook(function (e, l) 
-            assert(debug.getinfo(2, "l").currentline == l)
-            local f,m,c = debug.gethook()
-            assert(e == "line")
-            assert(m == 'l' and c == 0)
-            debug.sethook(nil)  -- hook is called only once
-            assert(not X)       -- check that
-            X = collectlocals(2)
-          end, "l")
-        end, "c")
-
-        a:f(1,2,3,4,5)
-        assert(X.self == a and X.a == 1   and X.b == 2 and X.c == nil)
-        assert(XX == 12)
-        assert(debug.gethook() == nil)
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.luaL_openlibs(L);
-
-        lauxlib.luaL_loadstring(L, lua.to_luastring(prefix + luaCode));
-
-    }, "Lua program loaded without error");
-
-    t.doesNotThrow(function () {
-
-        lua.lua_call(L, 0, -1);
-
-    }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] db: testing access to local variables in return hook (bug in 5.2)", function (t) {
-    let luaCode = `
-        local function collectlocals (level)
-          local tab = {}
-          for i = 1, math.huge do
-            local n, v = debug.getlocal(level + 1, i)
-            if not (n and string.find(n, "^[a-zA-Z0-9_]+$")) then
-               break   -- consider only real variables
-            end
-            tab[n] = v
-          end
-          return tab
-        end
-
-        do
-          local function foo (a, b)
-            do local x,y,z end
-            local c, d = 10, 20
-            return
-          end
-
-          local function aux ()
-            if debug.getinfo(2).name == "foo" then
-              foo = nil   -- to signal that it found 'foo'
-              local tab = {a = 100, b = 200, c = 10, d = 20}
-              for n, v in pairs(collectlocals(2)) do
-                assert(tab[n] == v)
-                tab[n] = nil
-              end
-              assert(next(tab) == nil)    -- 'tab' must be empty
-            end
-          end
-
-          debug.sethook(aux, "r"); foo(100, 200); debug.sethook()
-          assert(foo == nil)
-        end
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing upvalue access", function (t) {
-    let luaCode = `
-        local function getupvalues (f)
-          local t = {}
-          local i = 1
-          while true do
-            local name, value = debug.getupvalue(f, i)
-            if not name then break end
-            assert(not t[name])
-            t[name] = value
-            i = i + 1
-          end
-          return t
-        end
-
-        local a,b,c = 1,2,3
-        local function foo1 (a) b = a; return c end
-        local function foo2 (x) a = x; return c+b end
-        assert(not debug.getupvalue(foo1, 3))
-        assert(not debug.getupvalue(foo1, 0))
-        assert(not debug.setupvalue(foo1, 3, "xuxu"))
-        local t = getupvalues(foo1)
-        assert(t.a == nil and t.b == 2 and t.c == 3)
-        t = getupvalues(foo2)
-        assert(t.a == 1 and t.b == 2 and t.c == 3)
-        assert(debug.setupvalue(foo1, 1, "xuxu") == "b")
-        assert(({debug.getupvalue(foo2, 3)})[2] == "xuxu")
-        -- upvalues of C functions are allways "called" "" (the empty string)
-        assert(debug.getupvalue(string.gmatch("x", "x"), 1) == "")  
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing count hooks", function (t) {
-    let luaCode = `
-        local a=0
-        debug.sethook(function (e) a=a+1 end, "", 1)
-        a=0; for i=1,1000 do end; assert(1000 < a and a < 1012)
-        debug.sethook(function (e) a=a+1 end, "", 4)
-        a=0; for i=1,1000 do end; assert(250 < a and a < 255)
-        local f,m,c = debug.gethook()
-        assert(m == "" and c == 4)
-        debug.sethook(function (e) a=a+1 end, "", 4000)
-        a=0; for i=1,1000 do end; assert(a == 0)
-
-        do
-          debug.sethook(print, "", 2^24 - 1)   -- count upperbound
-          local f,m,c = debug.gethook()
-          assert(({debug.gethook()})[3] == 2^24 - 1)
-        end
-
-        debug.sethook()
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: tests for tail calls", function (t) {
-    let luaCode = `
-        local function f (x)
-          if x then
-            assert(debug.getinfo(1, "S").what == "Lua")
-            assert(debug.getinfo(1, "t").istailcall == true)
-            local tail = debug.getinfo(2)
-            assert(tail.func == g1 and tail.istailcall == true)
-            assert(debug.getinfo(3, "S").what == "main")
-            print"+"
-            end
-        end
-
-        function g(x) return f(x) end
-
-        function g1(x) g(x) end
-
-        local function h (x) local f=g1; return f(x) end
-
-        h(true)
-
-        local b = {}
-        debug.sethook(function (e) table.insert(b, e) end, "cr")
-        h(false)
-        debug.sethook()
-        local res = {"return",   -- first return (from sethook)
-          "call", "tail call", "call", "tail call",
-          "return", "return",
-          "call",    -- last call (to sethook)
-        }
-        for i = 1, #res do assert(res[i] == table.remove(b, 1)) end
-
-        b = 0
-        debug.sethook(function (e)
-                        if e == "tail call" then
-                          b = b + 1
-                          assert(debug.getinfo(2, "t").istailcall == true)
-                        else
-                          assert(debug.getinfo(2, "t").istailcall == false)
-                        end
-                      end, "c")
-        h(false)
-        debug.sethook()
-        assert(b == 2)   -- two tail calls
-
-        lim = _soft and 3000 or 30000
-        local function foo (x)
-          if x==0 then
-            assert(debug.getinfo(2).what == "main")
-            local info = debug.getinfo(1)
-            assert(info.istailcall == true and info.func == foo)
-          else return foo(x-1)
-          end
-        end
-
-        foo(lim)
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing local function information", function (t) {
-    let luaCode = `
-        co = load[[
-          local A = function ()
-            return x
-          end
-          return
-        ]]
-
-        local a = 0
-        -- 'A' should be visible to debugger only after its complete definition
-        debug.sethook(function (e, l)
-          if l == 3 then a = a + 1; assert(debug.getlocal(2, 1) == "(*temporary)")
-          elseif l == 4 then a = a + 1; assert(debug.getlocal(2, 1) == "A")
-          end
-        end, "l")
-        co()  -- run local function definition
-        debug.sethook()  -- turn off hook
-        assert(a == 2)   -- ensure all two lines where hooked
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing traceback", function (t) {
-    let luaCode = `
-        assert(debug.traceback(print) == print)
-        assert(debug.traceback(print, 4) == print)
-        assert(string.find(debug.traceback("hi", 4), "^hi\\n"))
-        assert(string.find(debug.traceback("hi"), "^hi\\n"))
-        assert(not string.find(debug.traceback("hi"), "'debug.traceback'"))
-        assert(string.find(debug.traceback("hi", 0), "'debug.traceback'"))
-        assert(string.find(debug.traceback(), "^stack traceback:\\n"))
-
-        do  -- C-function names in traceback
-          local st, msg = (function () return pcall end)()(debug.traceback)
-          assert(st == true and string.find(msg, "pcall"))
-        end
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing nparams, nups e isvararg", function (t) {
-    let luaCode = `
-        local t = debug.getinfo(print, "u")
-        assert(t.isvararg == true and t.nparams == 0 and t.nups == 0)
-
-        t = debug.getinfo(function (a,b,c) end, "u")
-        assert(t.isvararg == false and t.nparams == 3 and t.nups == 0)
-
-        t = debug.getinfo(function (a,b,...) return t[a] end, "u")
-        assert(t.isvararg == true and t.nparams == 2 and t.nups == 1)
-
-        t = debug.getinfo(1)   -- main
-        assert(t.isvararg == true and t.nparams == 0 and t.nups == 1 and
-               debug.getupvalue(t.func, 1) == "_ENV")
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing debugging of coroutines", function (t) {
-    let luaCode = `
-        local function checktraceback (co, p, level)
-          local tb = debug.traceback(co, nil, level)
-          local i = 0
-          for l in string.gmatch(tb, "[^\\n]+\\n?") do
-            assert(i == 0 or string.find(l, p[i]))
-            i = i+1
-          end
-          assert(p[i] == nil)
-        end
-
-
-        local function f (n)
-          if n > 0 then f(n-1)
-          else coroutine.yield() end
-        end
-
-        local co = coroutine.create(f)
-        coroutine.resume(co, 3)
-        checktraceback(co, {"yield", "db.lua", "db.lua", "db.lua", "db.lua"})
-        checktraceback(co, {"db.lua", "db.lua", "db.lua", "db.lua"}, 1)
-        checktraceback(co, {"db.lua", "db.lua", "db.lua"}, 2)
-        checktraceback(co, {"db.lua"}, 4)
-        checktraceback(co, {}, 40)
-
-
-        co = coroutine.create(function (x)
-               local a = 1
-               coroutine.yield(debug.getinfo(1, "l"))
-               coroutine.yield(debug.getinfo(1, "l").currentline)
-               return a
-             end)
-
-        local tr = {}
-        local foo = function (e, l) if l then table.insert(tr, l) end end
-        debug.sethook(co, foo, "lcr")
-
-        local _, l = coroutine.resume(co, 10)
-        local x = debug.getinfo(co, 1, "lfLS")
-        assert(x.currentline == l.currentline and x.activelines[x.currentline])
-        assert(type(x.func) == "function")
-        for i=x.linedefined + 1, x.lastlinedefined do
-          assert(x.activelines[i])
-          x.activelines[i] = nil
-        end
-        assert(next(x.activelines) == nil)   -- no 'extra' elements
-        assert(not debug.getinfo(co, 2))
-        local a,b = debug.getlocal(co, 1, 1)
-        assert(a == "x" and b == 10)
-        a,b = debug.getlocal(co, 1, 2)
-        assert(a == "a" and b == 1)
-        debug.setlocal(co, 1, 2, "hi")
-        assert(debug.gethook(co) == foo)
-        assert(#tr == 2 and
-               tr[1] == l.currentline-1 and tr[2] == l.currentline)
-
-        a,b,c = pcall(coroutine.resume, co)
-        assert(a and b and c == l.currentline+1)
-        checktraceback(co, {"yield", "in function <"})
-
-        a,b = coroutine.resume(co)
-        assert(a and b == "hi")
-        assert(#tr == 4 and tr[4] == l.currentline+2)
-        assert(debug.gethook(co) == foo)
-        assert(not debug.gethook())
-        checktraceback(co, {})
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.luaL_openlibs(L);
-
-        let b = lua.to_luastring(luaCode);
-        if (lauxlib.luaL_loadbuffer(L, b, b.length, lua.to_luastring("@db.lua")) !== lua.LUA_OK)
-          throw Error(lua.lua_tojsstring(L, -1));
-
-    }, "Lua program loaded without error");
-
-    t.doesNotThrow(function () {
-
-        lua.lua_call(L, 0, -1);
-
-    }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] db: check get/setlocal in coroutines", function (t) {
-    let luaCode = `
-        co = coroutine.create(function (x)
-          local a, b = coroutine.yield(x)
-          assert(a == 100 and b == nil)
-          return x
-        end)
-        a, b = coroutine.resume(co, 10)
-        assert(a and b == 10)
-        a, b = debug.getlocal(co, 1, 1)
-        assert(a == "x" and b == 10)
-        assert(not debug.getlocal(co, 1, 5))
-        assert(debug.setlocal(co, 1, 1, 30) == "x")
-        assert(not debug.setlocal(co, 1, 5, 40))
-        a, b = coroutine.resume(co, 100)
-        assert(a and b == 30)
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: check traceback of suspended (or dead with error) coroutines", function (t) {
-    let luaCode = `
-        local function checktraceback (co, p, level)
-          local tb = debug.traceback(co, nil, level)
-          local i = 0
-          for l in string.gmatch(tb, "[^\\n]+\\n?") do
-            assert(i == 0 or string.find(l, p[i]))
-            i = i+1
-          end
-          assert(p[i] == nil)
-        end
-
-        function f(i) if i==0 then error(i) else coroutine.yield(); f(i-1) end end
-
-        co = coroutine.create(function (x) f(x) end)
-        a, b = coroutine.resume(co, 3)
-        t = {"'coroutine.yield'", "'f'", "in function <"}
-        while coroutine.status(co) == "suspended" do
-          checktraceback(co, t)
-          a, b = coroutine.resume(co)
-          table.insert(t, 2, "'f'")   -- one more recursive call to 'f'
-        end
-        t[1] = "'error'"
-        checktraceback(co, t)
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: check test acessing line numbers of a coroutine from a resume inside a C function", function (t) {
-    let luaCode = `
-        local function g(x)
-            coroutine.yield(x)
-        end
-
-        local function f (i)
-          debug.sethook(function () end, "l")
-          for j=1,1000 do
-            g(i+j)
-          end
-        end
-
-        local co = coroutine.wrap(f)
-        co(10)
-        pcall(co)
-        pcall(co)
-
-
-        assert(type(debug.getregistry()) == "table")
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: test tagmethod information", function (t) {
-    let luaCode = `
-        local a = {}
-        local function f (t)
-          local info = debug.getinfo(1);
-          assert(info.namewhat == "metamethod")
-          a.op = info.name
-          return info.name
-        end
-        setmetatable(a, {
-          __index = f; __add = f; __div = f; __mod = f; __concat = f; __pow = f;
-          __mul = f; __idiv = f; __unm = f; __len = f; __sub = f;
-          __shl = f; __shr = f; __bor = f; __bxor = f;
-          __eq = f; __le = f; __lt = f; __unm = f; __len = f; __band = f;
-          __bnot = f;
-        })
-
-        local b = setmetatable({}, getmetatable(a))
-
-        assert(a[3] == "__index" and a^3 == "__pow" and a..a == "__concat")
-        assert(a/3 == "__div" and 3%a == "__mod")
-        assert(a+3 == "__add" and 3-a == "__sub" and a*3 == "__mul" and
-               -a == "__unm" and #a == "__len" and a&3 == "__band")
-        assert(a|3 == "__bor" and 3~a == "__bxor" and a<<3 == "__shl" and
-               a>>1 == "__shr")
-        assert (a==b and a.op == "__eq")
-        assert (a>=b and a.op == "__le")
-        assert (a>b and a.op == "__lt")
-        assert(~a == "__bnot")
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing for-iterator name", function (t) {
-    let luaCode = `
-        do
-          local function f()
-            assert(debug.getinfo(1).name == "for iterator")
-          end
-
-          for i in f do end
-        end
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: testing traceback sizes", function (t) {
-    let luaCode = `
-        local function countlines (s)
-          return select(2, string.gsub(s, "\\n", ""))
-        end
-
-        local function deep (lvl, n)
-          if lvl == 0 then
-            return (debug.traceback("message", n))
-          else
-            return (deep(lvl-1, n))
-          end
-        end
-
-        local function checkdeep (total, start)
-          local s = deep(total, start)
-          local rest = string.match(s, "^message\\nstack traceback:\\n(.*)$")
-          local cl = countlines(rest)
-          -- at most 10 lines in first part, 11 in second, plus '...'
-          assert(cl <= 10 + 11 + 1)
-          local brk = string.find(rest, "%.%.%.")
-          if brk then   -- does message have '...'?
-            local rest1 = string.sub(rest, 1, brk)
-            local rest2 = string.sub(rest, brk, #rest)
-            assert(countlines(rest1) == 10 and countlines(rest2) == 11)
-          else
-            assert(cl == total - start + 2)
-          end
-        end
-
-        for d = 1, 51, 10 do
-          for l = 1, d do
-            -- use coroutines to ensure complete control of the stack
-            coroutine.wrap(checkdeep)(d, l)
-          end
-        end
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.luaL_openlibs(L);
-
-        let b = lua.to_luastring(luaCode);
-        if (lauxlib.luaL_loadbuffer(L, b, b.length, lua.to_luastring("@db.lua")) !== lua.LUA_OK)
-          throw Error(lua.lua_tojsstring(L, -1));
-
-    }, "Lua program loaded without error");
-
-    t.doesNotThrow(function () {
-
-        lua.lua_call(L, 0, -1);
-
-    }, "Lua program ran without error");
-
-});
-
-
-test("[test-suite] db: testing debug functions on chunk without debug info", function (t) {
-    let luaCode = `
-        prog = [[-- program to be loaded without debug information
-        local debug = require'debug'
-        local a = 12  -- a local variable
-
-        local n, v = debug.getlocal(1, 1)
-        assert(n == "(*temporary)" and v == debug)   -- unkown name but known value
-        n, v = debug.getlocal(1, 2)
-        assert(n == "(*temporary)" and v == 12)   -- unkown name but known value
-
-        -- a function with an upvalue
-        local f = function () local x; return a end
-        n, v = debug.getupvalue(f, 1)
-        assert(n == "(*no name)" and v == 12)
-        assert(debug.setupvalue(f, 1, 13) == "(*no name)")
-        assert(a == 13)
-
-        local t = debug.getinfo(f)
-        assert(t.name == nil and t.linedefined > 0 and
-               t.lastlinedefined == t.linedefined and
-               t.short_src == "?")
-        assert(debug.getinfo(1).currentline == -1)
-
-        t = debug.getinfo(f, "L").activelines
-        assert(next(t) == nil)    -- active lines are empty
-
-        -- dump/load a function without debug info
-        f = load(string.dump(f))
-
-        t = debug.getinfo(f)
-        assert(t.name == nil and t.linedefined > 0 and
-               t.lastlinedefined == t.linedefined and
-               t.short_src == "?")
-        assert(debug.getinfo(1).currentline == -1)
-
-        return a
-        ]]
-
-
-        -- load 'prog' without debug info
-        local f = assert(load(string.dump(load(prog), true)))
-
-        assert(f() == 13)
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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] db: tests for 'source' in binary dumps", function (t) {
-    let luaCode = `
-        do
-          local prog = [[
-            return function (x)
-              return function (y) 
-                return x + y
-              end
-            end
-          ]]
-          local name = string.rep("x", 1000)
-          local p = assert(load(prog, name))
-          -- load 'p' as a binary chunk with debug information
-          local c = string.dump(p)
-          assert(#c > 1000 and #c < 2000)   -- no repetition of 'source' in dump
-          local f = assert(load(c))
-          local g = f()
-          local h = g(3)
-          assert(h(5) == 8)
-          assert(debug.getinfo(f).source == name and   -- all functions have 'source'
-                 debug.getinfo(g).source == name and 
-                 debug.getinfo(h).source == name)
-          -- again, without debug info
-          local c = string.dump(p, true)
-          assert(#c < 500)   -- no 'source' in dump
-          local f = assert(load(c))
-          local g = f()
-          local h = g(30)
-          assert(h(50) == 80)
-          assert(debug.getinfo(f).source == '=?' and   -- no function has 'source'
-                 debug.getinfo(g).source == '=?' and 
-                 debug.getinfo(h).source == '=?')
-        end
-    `, L;
-
-    t.plan(2);
-
-    t.doesNotThrow(function () {
-
-        L = lauxlib.luaL_newstate();
-
-        lualib.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");
-
-});