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use strict;
use warnings;
use Test::More;
use System::Command;
use File::Spec;
BEGIN {
eval 'use Scalar::Util qw( refaddr ); 1;'
or plan skip_all =>
"Scalar::Util $Scalar::Util::VERSION does not provide refaddr";
}
plan tests => my $tests;
my @cmd = ( $^X, File::Spec->catfile( t => 'lines.pl' ) );
# record destruction
my @destroyed;
{
no strict 'refs';
for my $suffix ( '', '::Reaper' ) {
my $class = "System::Command$suffix";
my $destroy = *{"$class\::DESTROY"}{CODE};
*{"$class\::DESTROY"} = sub {
diag "DESTROY $_[0]";
push @destroyed, refaddr $_[0];
$destroy->(@_) if $destroy;
};
}
}
# test various scope situations and object destruction time
my ( $cmd_addr, $reap_addr );
# test 1
BEGIN { $tests += 6 }
{
my $cmd = System::Command->new(@cmd);
$cmd_addr = refaddr $cmd;
$reap_addr = refaddr $cmd->{reaper};
my ( $out, $err ) = ( $cmd->stdout, $cmd->stderr );
ok( eof $out, 'No output' );
ok( eof $err, 'No errput' );
is( scalar @destroyed, 0, "Destroyed no object yet" );
}
is( scalar @destroyed, 2, "Destroyed 2 objects" );
is( shift @destroyed, $cmd_addr, "... command object was destroyed" );
is( shift @destroyed, $reap_addr, "... reaper object was destroyed" );
@destroyed = ();
# test 2
BEGIN { $tests += 6 }
{
my $cmd = System::Command->new( @cmd, 1, 1, 1 );
$cmd_addr = refaddr $cmd;
$reap_addr = refaddr $cmd->{reaper};
{
my $fh = $cmd->stdout;
my $ln = <$fh>;
is( $ln, "STDOUT line 1\n", 'scope: { $cmd { $fh } { $fh } }' );
}
{
my $fh = $cmd->stdout;
my $ln = <$fh>;
is( $ln, "STDOUT line 2\n", 'scope: { $cmd { $fh } { $fh } }' );
}
is( scalar @destroyed, 0, "Destroyed no object yet" );
}
is( scalar @destroyed, 2, "Destroyed 2 objects" );
is( shift @destroyed, $cmd_addr, "... command object was destroyed" );
is( shift @destroyed, $reap_addr, "... reaper object was destroyed" );
@destroyed = ();
# test 3
BEGIN { $tests += 3 }
{
my $fh = System::Command->new( @cmd, 1 )->stdout;
is( scalar @destroyed, 1, "Destroyed 1 object (command)" );
@destroyed = ();
my $ln = <$fh>;
is( $ln, "STDOUT line 1\n", 'scope: { $fh = cmd->fh }' );
}
is( scalar @destroyed, 1, "Destroyed 1 object (reaper)" );
@destroyed = ();
# test 4
BEGIN { $tests += 1 }
System::Command->new(@cmd);
is( scalar @destroyed, 2, "Destroyed 2 objects (command + reaper)" );
@destroyed = ();
# test 5
BEGIN { $tests += 5 }
{
my $fh;
{
my $cmd = System::Command->new( @cmd, 2 );
$cmd_addr = refaddr $cmd;
$reap_addr = refaddr $cmd->{reaper};
$fh = $cmd->stdout;
}
is( scalar @destroyed, 1, "Destroyed 1 object (command)" );
is( shift @destroyed, $cmd_addr, "... command object was destroyed" );
@destroyed = ();
my $out = join '', <$fh>;
is( $out, << 'OUT', 'scope: { $fh = $cmd->fh }; $fh }' );
STDOUT line 1
STDOUT line 2
OUT
}
is( scalar @destroyed, 1, "Destroyed 1 objects (reaper)" );
is( shift @destroyed, $reap_addr, "... reaper object was destroyed" );
@destroyed = ();
# test 6
BEGIN { $tests += 6 }
{
my $cmd = System::Command->new( @cmd, 1, 2, 2, 1 );
$cmd_addr = refaddr $cmd;
$reap_addr = refaddr $cmd->{reaper};
{
my $fh = $cmd->stdout;
my $out = join '', <$fh>;
is( $out, << 'OUT', 'scope: { $cmd { $fh } { $fh } }' );
STDOUT line 1
STDOUT line 2
STDOUT line 3
OUT
}
{
my $fh = $cmd->stderr;
my $err = join '', <$fh>;
is( $err, << 'ERR', 'scope: { $cmd { $fh } { $fh } }' );
STDERR line 1
STDERR line 2
STDERR line 3
ERR
}
is( scalar @destroyed, 0, "Destroyed no object yet" );
}
is( scalar @destroyed, 2, "Destroyed 2 objects" );
is( shift @destroyed, $cmd_addr, "... command object was destroyed" );
is( shift @destroyed, $reap_addr, "... reaper object was destroyed" );
@destroyed = ();
# test 7
BEGIN { $tests += 4 }
{
my ( $pid, $in, $out, $err ) = System::Command->spawn( @cmd, 1, 2, 2, 1 );
is( scalar @destroyed, 1, "Destroyed command object" );
shift @destroyed;
my $errput = join '', <$err>;
my $output = join '', <$out>;
is( $output, << 'OUT', 'scope: spawn()' );
STDOUT line 1
STDOUT line 2
STDOUT line 3
OUT
is( $errput, << 'ERR', 'scope: spawn()' );
STDERR line 1
STDERR line 2
STDERR line 3
ERR
}
is( scalar @destroyed, 1, "Destroyed reaper object" );
@destroyed = ();
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