use Forks::Super qw(:test overload);
use Forks::Super::Util qw(is_socket is_pipe);
use Test::More tests => 14;
use strict;
use warnings;
$Forks::Super::SOCKET_READ_TIMEOUT = 0.25;
# test blocked and unblocked reading for pipe handles.
my $pid = fork {
child_fh => "out,err,pipe,block",
sub => sub {
print STDERR "foo\n";
sleep 5;
print STDOUT "bar\n";
sleep 5;
print STDOUT "baz\n";
}
};
ok(isValidPid($pid), "$pid is valid pid");
ok(is_pipe($pid->{child_stdout})
|| Forks::Super::Util::IS_WIN32(), "ipc with pipes");
sleep 1;
my $t0 = Time::HiRes::time();
my $err = Forks::Super::read_stderr($pid);
my $t1 = Time::HiRes::time() - $t0;
ok($err =~ /^foo/, "read stderr");
okl($t1 < 1.99, "read blocked stderr fast ${t1}s, expected <1s"); ### 4 ###
my $out = Forks::Super::read_stdout($pid);
my $t2 = Time::HiRes::time() - $t0;
ok($out =~ /^bar/, "read stdout");
okl($t2 > 2.95, "read blocked stdout ${t2}s, expected ~4s");
$out = Forks::Super::read_stdout($pid, "block" => 0);
my $t3 = Time::HiRes::time() - $t0;
my $t32 = $t3 - $t2;
ok(!defined($out) || (defined($out) && $out eq ""),
"non-blocking read on empty stdout returns empty")
or diag("\$out was \"$out\", expected empty");
okl($t32 <= 1.0, "non-blocking read took ${t32}s, expected ~${Forks::Super::SOCKET_READ_TIMEOUT}s");
$out = Forks::Super::read_stdout($pid);
my $t4 = Time::HiRes::time() - $t0;
my $t43 = $t4 - $t3;
ok($out =~ /^baz/, "successful blocking read on stdout");
okl($t43 > 3.5, "read blocked stdout ${t43}s, expected ~5s");
#### no more input on STDOUT or STDERR
$err = Forks::Super::read_stderr($pid);
my $t5 = Time::HiRes::time() - $t0;
my $t54 = $t5 - $t4;
ok(!defined($err) || $err eq '', ### 11 ###
"blocking read on empty stderr returns empty");
okl($t54 <= 1.0, "blocking read on empty stderr fast ${t54}s, expected <1.0s");
$out = Forks::Super::read_stdout($pid, "block" => 0);
my $t6 = Time::HiRes::time() - $t0;
my $t65 = $t6 - $t5;
ok(!defined($out) || $out eq "",
"non-blocking read on empty stdout returns empty")
or diag($out);
okl($t65 <= 1.0,
"non-blocking read on empty stdout fast ${t65}s, expected <1.0s");