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fix(unittests): do not consider process crash to be a success

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unittests relied on the exact setup of coredumps on CI to detect
process crashing, and otherwise completely discarded errors.

Dectect child process failure reliably using process status, so that
unittests actually work locally as well.
This commit is contained in:
bfredl 2023-01-18 11:54:49 +01:00
parent 20b7be2d10
commit 9fdb586592
1 changed files with 19 additions and 8 deletions
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27
test/unit/helpers.lua
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@ -471,8 +471,9 @@ else
close = ffi.C.close,
wait = function(pid)
ffi.errno(0)
local stat_loc = ffi.new('int[1]', {0})
while true do
local r = ffi.C.waitpid(pid, nil, ffi.C.kPOSIXWaitWUNTRACED)
local r = ffi.C.waitpid(pid, stat_loc, ffi.C.kPOSIXWaitWUNTRACED)
if r == -1 then
local err = ffi.errno(0)
if err == ffi.C.kPOSIXErrnoECHILD then
@ -485,6 +486,7 @@ else
assert(r == pid)
end
end
return stat_loc[0]
end,
exit = ffi.C._exit,
}
@ -730,18 +732,22 @@ local function check_child_err(rd)
end
end
local function itp_parent(rd, pid, allow_failure)
local err, emsg = pcall(check_child_err, rd)
sc.wait(pid)
local function itp_parent(rd, pid, allow_failure, location)
local ok, emsg = pcall(check_child_err, rd)
local status = sc.wait(pid)
sc.close(rd)
if not err then
if not ok then
if allow_failure then
io.stderr:write('Errorred out:\n' .. tostring(emsg) .. '\n')
io.stderr:write('Errorred out ('..status..'):\n' .. tostring(emsg) .. '\n')
os.execute([[
sh -c "source ci/common/test.sh
check_core_dumps --delete \"]] .. Paths.test_luajit_prg .. [[\""]])
else
error(emsg)
error(tostring(emsg)..'\nexit code: '..status)
end
elseif status ~= 0 then
if not allow_failure then
error("child process errored out with status "..status.."!\n\n"..location)
end
end
end
@ -758,6 +764,11 @@ local function gen_itp(it)
-- FIXME Fix tests with this true
return
end
-- Pre-emptively calculating error location, wasteful, ugh!
-- But the way this code messes around with busted implies the real location is strictly
-- not available in the parent when an actual error occurs. so we have to do this here.
local location = debug.traceback()
it(name, function()
local rd, wr = sc.pipe()
child_pid = sc.fork()
@ -768,7 +779,7 @@ local function gen_itp(it)
sc.close(wr)
local saved_child_pid = child_pid
child_pid = nil
itp_parent(rd, saved_child_pid, allow_failure)
itp_parent(rd, saved_child_pid, allow_failure, location)
end
end)
end