git-http-backend: use qspawn to limit running processes

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

diff --git a/t/qspawn.t b/t/qspawn.t
new file mode 100644 (file)
index 0000000..05072e2
--- /dev/null
+++ b/t/qspawn.t
@@ -0,0 +1,60 @@
+# Copyright (C) 2016 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use Test::More;
+use_ok 'PublicInbox::Qspawn';
+{
+       my $x = PublicInbox::Qspawn->new([qw(true)]);
+       my $run = 0;
+       $x->start(sub {
+               my ($rpipe) = @_;
+               is(0, sysread($rpipe, my $buf, 1), 'read zero bytes');
+               ok(!$x->finish, 'no error on finish');
+               $run = 1;
+       });
+       is($run, 1, 'callback ran alright');
+}
+
+{
+       my $x = PublicInbox::Qspawn->new([qw(false)]);
+       my $run = 0;
+       $x->start(sub {
+               my ($rpipe) = @_;
+               is(0, sysread($rpipe, my $buf, 1), 'read zero bytes from false');
+               my $err = $x->finish;
+               is($err, 256, 'error on finish');
+               $run = 1;
+       });
+       is($run, 1, 'callback ran alright');
+}
+
+foreach my $cmd ([qw(sleep 1)], [qw(sh -c), 'sleep 1; false']) {
+       my $s = PublicInbox::Qspawn->new($cmd);
+       my @run;
+       $s->start(sub {
+               my ($rpipe) = @_;
+               push @run, 'sleep';
+               is(0, sysread($rpipe, my $buf, 1), 'read zero bytes');
+       });
+       my $n = 0;
+       my @t = map {
+               my $i = $n++;
+               my $x = PublicInbox::Qspawn->new([qw(true)]);
+               $x->start(sub {
+                       my ($rpipe) = @_;
+                       push @run, $i;
+               });
+               [$x, $i]
+       } (0..2);
+
+       if ($cmd->[-1] =~ /false\z/) {
+               ok($s->finish, 'got error on false after sleep');
+       } else {
+               ok(!$s->finish, 'no error on sleep');
+       }
+       ok(!$_->[0]->finish, "true $_->[1] succeeded") foreach @t;
+       is_deeply([qw(sleep 0 1 2)], \@run, 'ran in order');
+}
+
+done_testing();
+
+1;