From 47ab29704c99b8eab15aec885ce704b25f960023 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Thu, 17 Feb 2022 21:02:33 +0000 Subject: t/lei-sigpipe: attempt to improve diagnostics for stuck test This may help diagnose a difficult-to-reproduce test failure on NixOS. Link: https://public-inbox/meta/20211209013743.okzgim7bbrpahks7@sourcephile.fr/ --- t/lei-sigpipe.t | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/t/lei-sigpipe.t b/t/lei-sigpipe.t index d9738b07..6b2772a6 100644 --- a/t/lei-sigpipe.t +++ b/t/lei-sigpipe.t @@ -27,11 +27,17 @@ EOM } lei_ok(qw(import), $f) if $imported++ == 0; - open my $errfh, '+>', "$ENV{HOME}/stderr.log" or xbail $!; + open my $errfh, '+>>', "$ENV{HOME}/stderr.log" or xbail $!; my $opt = { run_mode => 0, 2 => $errfh, 1 => $w }; my $cmd = [qw(lei q -q -t), @$out, 'z:1..']; my $tp = start_script($cmd, undef, $opt); close $w; + vec(my $rvec = '', fileno($r), 1) = 1; + if (!select($rvec, undef, undef, 30)) { + seek($errfh, 0, 0) or xbail $!; + my $s = do { local $/; <$errfh> }; + xbail "lei q had no output after 30s, stderr=$s"; + } is(sysread($r, my $buf, 1), 1, 'read one byte'); close $r; # trigger SIGPIPE $tp->join; -- cgit v1.2.3-24-ge0c7