util.startup: Check root after detecting platform and reading config (thanks SigmaTel71)
Ensures that startup.detect_platform() runs so know whether to use the
POSIX method of checking the current user or something else. Also after
reading the config so we know whether the root override setting is set.
local dbg = require "util.debug";
describe("util.debug", function ()
describe("traceback()", function ()
it("works", function ()
local tb = dbg.traceback();
assert.is_string(tb);
end);
end);
describe("get_traceback_table()", function ()
it("works", function ()
local count = 0;
-- MUST stay in sync with the line numbers of these functions:
local f1_defined, f3_defined = 43, 15;
local function f3(f3_param) --luacheck: ignore 212/f3_param
count = count + 1;
for i = 1, 2 do
local tb = dbg.get_traceback_table(i == 1 and coroutine.running() or nil, 0);
assert.is_table(tb);
--print(dbg.traceback(), "\n\n\n", require "util.serialization".serialize(tb, { fatal = false, unquoted = true}));
local found_f1, found_f3;
for _, frame in ipairs(tb) do
if frame.info.linedefined == f1_defined then
assert.equal(0, #frame.locals);
assert.equal("f2", frame.upvalues[1].name);
assert.equal("f1_upvalue", frame.upvalues[2].name);
found_f1 = true;
elseif frame.info.linedefined == f3_defined then
assert.equal("f3_param", frame.locals[1].name);
found_f3 = true;
end
end
assert.is_true(found_f1);
assert.is_true(found_f3);
end
end
local function f2()
local f2_local = "hello";
return f3(f2_local);
end
local f1_upvalue = "upvalue1";
local function f1()
f2(f1_upvalue);
end
-- ok/err are caught and re-thrown so that
-- busted gets to handle them in its own way
local ok, err;
local function hook()
debug.sethook();
ok, err = pcall(f1);
end
-- Test the traceback is correct in various
-- types of caller environments
-- From a Lua hook
debug.sethook(hook, "crl", 1);
local a = string.sub("abcdef", 3, 4);
assert.equal("cd", a);
debug.sethook();
assert.equal(1, count);
if not ok then
error(err);
end
ok, err = nil, nil;
-- From a signal handler (C hook)
require "util.signal".signal("SIGUSR1", hook);
require "util.signal".raise("SIGUSR1");
assert.equal(2, count);
if not ok then
error(err);
end
ok, err = nil, nil;
-- Inside a coroutine
local co = coroutine.create(function ()
hook();
end);
coroutine.resume(co);
if not ok then
error(err);
end
assert.equal(3, count);
end);
end);
end);