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|
use strict;
use warnings;
use RT::Test tests => 35;
use Test::Warn;
use RT::Util qw(safe_run_child);
use POSIX qw//;
is_handle_ok();
{
my $res = safe_run_child { return 1 };
is $res, 1, "correct return value";
is_handle_ok();
}
# test context
{
my $context;
my $sub = sub {
if ( wantarray ) {
$context = 'array'; return 1, 2, 3;
} elsif ( defined wantarray ) {
$context = 'scalar'; return 'foo';
} elsif ( !wantarray ) {
$context = 'void'; return;
}
};
is_deeply [ safe_run_child { $sub->(@_) } ], [1, 2, 3];
is $context, 'array';
is_handle_ok();
is scalar safe_run_child {$sub->(@_)}, 'foo';
is $context, 'scalar';
is_handle_ok();
safe_run_child {$sub->(@_)};
is $context, 'void';
is_handle_ok();
}
# fork+child returns
{
my $res = safe_run_child {
if (fork) { wait; return 'parent' }
open my $fh, '>', RT::Test->temp_directory .'/tttt';
print $fh "child";
close $fh;
return 'child';
};
is $res, 'parent', "correct return value";
is( RT::Test->file_content([RT::Test->temp_directory, 'tttt'], unlink => 1 ),
'child',
'correct file content',
);
is_handle_ok();
}
# fork+child dies
{
warning_like {
my $res = safe_run_child {
if (fork) { wait; return 'parent' }
open my $fh, '>', RT::Test->temp_directory .'/tttt';
print $fh "child";
close $fh;
die 'child';
};
is $res, 'parent', "correct return value";
is( RT::Test->file_content([RT::Test->temp_directory, 'tttt'], unlink => 1 ),
'child',
'correct file content',
);
} qr/System Error: child/;
is_handle_ok();
}
# fork+child exits
{
my $res = safe_run_child {
if (fork) { wait; return 'parent' }
open my $fh, '>', RT::Test->temp_directory .'/tttt';
print $fh "child";
close $fh;
exit 0;
};
is $res, 'parent', "correct return value";
is( RT::Test->file_content([RT::Test->temp_directory, 'tttt'], unlink => 1 ),
'child',
'correct file content',
);
is_handle_ok();
}
# parent dies
{
my $res = eval { safe_run_child { die 'parent'; } };
is $res, undef, "correct return value";
like $@, qr'System Error: parent', "correct error message value";
is_handle_ok();
}
# fork+exec
{
my $script = RT::Test->temp_directory .'/true.pl';
open my $fh, '>', $script;
print $fh <<END;
#!$^X
open my \$fh, '>', '$script.res';
print \$fh "child";
close \$fh;
exit 0;
END
close $fh;
chmod 0777, $script;
my $res = safe_run_child {
if (fork) { wait; return 'parent' }
exec $script;
};
is $res, 'parent', "correct return value";
is( RT::Test->file_content([$script .'.res'], unlink => 1 ),
'child',
'correct file content',
);
is_handle_ok();
}
# fork+parent that doesn't wait()
{
require Time::HiRes;
my $start = Time::HiRes::time();
my $pid;
# Set up a poor man's semaphore
my $all_set = 0;
$SIG{USR1} = sub {$all_set++};
my $res = safe_run_child {
if ($pid = fork) { return 'parent' }
open my $fh, '>', RT::Test->temp_directory .'/first';
print $fh "child";
close $fh;
# Signal that the first file is now all set; we need to do this
# to avoid a race condition
kill POSIX::SIGUSR1(), getppid();
sleep 5;
open $fh, '>', RT::Test->temp_directory .'/second';
print $fh "child";
close $fh;
exit 0;
};
ok( Time::HiRes::time() - $start < 5, "Didn't wait until child finished" );
# Wait for up to 3 seconds to get signaled that the child has made
# the file (the USR1 will break out of the sleep()). This _should_
# be immediate, but there's a race between the parent and child
# here, since there's no wait()'ing. There's still a tiny race
# where the signal could come in betwene the $all_set check and the
# sleep, but that just means we sleep for 3 seconds uselessly.
sleep 3 unless $all_set;
is $res, 'parent', "correct return value";
is( RT::Test->file_content([RT::Test->temp_directory, 'first'], unlink => 1 ),
'child',
'correct file content',
);
ok( not(-f RT::Test->temp_directory.'/second'), "Second file does not exist yet");
is_handle_ok();
ok(waitpid($pid,0), "Waited until child finished to reap");
is( RT::Test->file_content([RT::Test->temp_directory, 'second'], unlink => 1 ),
'child',
'correct file content',
);
is_handle_ok();
}
sub is_handle_ok {
local $Test::Builder::Level = $Test::Builder::Level + 1;
my $test = $RT::Handle->dbh->selectall_arrayref(
"SELECT id FROM Users WHERE Name = 'Nobody'"
);
ok $test && $test->[0][0], "selected, DB is there";
}
|
