1BEGIN { 2 chdir 't' if -d 't'; 3 @INC = '../lib' if -d '../lib' && -d '../ext'; 4 5 require "./test.pl"; 6 require Config; import Config; 7} 8 9use strict; 10use warnings; 11 12skip_all('no SysV semaphores on this platform') if !$Config{d_sem}; 13skip_all('SysV semaphore structures not detected') 14 if !$Config{d_semctl_semid_ds} && !$Config{d_semctl_semun}; 15 16my @warnings; 17{ 18 local $SIG{__WARN__} = sub { push @warnings, $_[0] }; 19 local $SIG{SYS} = sub { skip_all("SIGSYS caught") } if exists $SIG{SYS}; 20 my $test = (semctl(-1,0,0,0))[0]; 21 ok(!defined $test, "erroneous semctl list slice yields undef"); 22} 23 24is(scalar @warnings, 0, "no warnings from erroneous semctl list slice") 25 or diag("warnings found: @warnings"); 26 27done_testing; 28