imaptracker: preserve WAL journal_mode if set by user

[public-inbox.git] / t / spawn.t

diff --git a/t/spawn.t b/t/spawn.t
index 44355f43655582845755b674847494eb18b5df4c..a0019202a85aaf8da3958c86a94423fe8ce82ab8 100644 (file)
--- a/t/spawn.t
+++ b/t/spawn.t
@@ -4,6 +4,7 @@ use strict;
 use warnings;
 use Test::More;
 use PublicInbox::Spawn qw(which spawn popen_rd);
+use PublicInbox::Sigfd;
 
 {
        my $true = which('true');
@@ -17,6 +18,32 @@ use PublicInbox::Spawn qw(which spawn popen_rd);
        is($?, 0, 'true exited successfully');
 }
 
+{ # ensure waitpid(-1, 0) and SIGCHLD works in spawned process
+       my $script = <<'EOF';
+$| = 1; # unbuffer stdout
+defined(my $pid = fork) or die "fork: $!";
+if ($pid == 0) { exit }
+elsif ($pid > 0) {
+       my $waited = waitpid(-1, 0);
+       $waited == $pid or die "mismatched child $pid != $waited";
+       $? == 0 or die "child err: $>";
+       $SIG{CHLD} = sub { print "HI\n"; exit };
+       print "RDY $$\n";
+       select(undef, undef, undef, 0.01) while 1;
+}
+EOF
+       my $oldset = PublicInbox::Sigfd::block_signals();
+       my $rd = popen_rd([$^X, '-e', $script]);
+       diag 'waiting for child to reap grandchild...';
+       chomp(my $line = readline($rd));
+       my ($rdy, $pid) = split(' ', $line);
+       is($rdy, 'RDY', 'got ready signal, waitpid(-1) works in child');
+       ok(kill('CHLD', $pid), 'sent SIGCHLD to child');
+       is(readline($rd), "HI\n", '$SIG{CHLD} works in child');
+       ok(close $rd, 'popen_rd close works');
+       PublicInbox::Sigfd::sig_setmask($oldset);
+}
+
 {
        my ($r, $w);
        pipe $r, $w or die "pipe failed: $!";