1 files changed, 89 insertions, 0 deletions
diff --git a/t/37loop-child-root.t b/t/37loop-child-root.t
new file mode 100644
index 0000000..237b338
--- /dev/null
+++ b/t/37loop-child-root.t
@@ -0,0 +1,89 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use IO::Async::Test;
+
+use Test::More;
+
+use IO::Async::Loop;
+use IO::Async::OS;
+
+plan skip_all => "POSIX fork() is not available" unless IO::Async::OS->HAVE_POSIX_FORK;
+
+use POSIX qw( WEXITSTATUS );
+
+# These tests check the parts of Loop->spawn_child that need to be root to
+# work. Since we're unlikely to be root, skip the lot if we're not.
+
+unless( $< == 0 ) {
+   plan skip_all => "not root";
+}
+
+is( $>, 0, 'am root');
+
+my $loop = IO::Async::Loop->new_builtin;
+
+testing_loop( $loop );
+
+my ( $exitcode, $dollarbang, $dollarat );
+
+$loop->spawn_child(
+   code => sub { return $> },
+   setup => [ setuid => 10 ],
+   on_exit => sub { ( undef, $exitcode, $dollarbang, $dollarat ) = @_ },
+);
+
+wait_for { defined $exitcode };
+
+is( WEXITSTATUS($exitcode), 10, 'setuid' );
+
+$loop->spawn_child(
+   code => sub { return $) },
+   setup => [ setgid => 10 ],
+   on_exit => sub { ( undef, $exitcode, $dollarbang, $dollarat ) = @_ },
+);
+
+undef $exitcode;
+wait_for { defined $exitcode };
+
+is( WEXITSTATUS($exitcode), 10, 'setgid' );
+
+$loop->spawn_child(
+   code => sub { return $) =~ m/ 5 / },
+   setup => [ setgroups => [ 4, 5, 6 ] ],
+   on_exit => sub { ( undef, $exitcode, $dollarbang, $dollarat ) = @_ },
+);
+
+undef $exitcode;
+wait_for { defined $exitcode };
+
+is( WEXITSTATUS($exitcode), 1, 'setgroups' );
+
+my $child_out;
+
+$loop->run_child(
+   code => sub {
+      print "EUID: $>\n";
+      my ( $gid, @groups ) = split( m/ /, $) );
+      print "EGID: $gid\n";
+      print "Groups: " . join( " ", sort { $a <=> $b } @groups ) . "\n";
+      return 0;
+   },
+   setup => [
+      setgid    => 10,
+      setgroups => [ 4, 5, 6, 10 ],
+      setuid    => 20,
+   ],
+   on_finish => sub { ( undef, $exitcode, $child_out ) = @_; },
+);
+
+undef $exitcode;
+wait_for { defined $exitcode };
+
+is( $child_out,
+    "EUID: 20\nEGID: 10\nGroups: 4 5 6 10\n",
+    'combined setuid/gid/groups' );
+
+done_testing;