4 require Config; import Config;
6 # open2/3 supported on win32
7 && $^O ne 'MSWin32' && $^O ne 'NetWare')
13 $SIG{__WARN__} = sub { die @_ };
17 use Test::More tests => 37;
25 if ($^O eq 'MSWin32' || $^O eq 'NetWare') {
36 my ($pid, $reaped_pid);
41 $pid = open3 'WRITE', 'READ', 'ERROR', $perl, '-e', cmd_line(<<'EOF');
44 print STDERR "hi error\n";
46 cmp_ok($pid, '!=', 0);
47 isnt((print WRITE "hi kid\n"), 0);
48 like(scalar <READ>, qr/^hi kid\r?\n$/);
49 like(scalar <ERROR>, qr/^hi error\r?\n$/);
50 is(close(WRITE), 1) or diag($!);
51 is(close(READ), 1) or diag($!);
52 is(close(ERROR), 1) or diag($!);
53 $reaped_pid = waitpid $pid, 0;
54 is($reaped_pid, $pid);
57 my $desc = "read and error together, both named";
58 $pid = open3 'WRITE', 'READ', 'READ', $perl, '-e', cmd_line(<<'EOF');
61 print STDERR scalar <STDIN>;
63 print WRITE "$desc\n";
64 like(scalar <READ>, qr/\A$desc\r?\n\z/);
65 print WRITE "$desc [again]\n";
66 like(scalar <READ>, qr/\A$desc \[again\]\r?\n\z/);
69 $desc = "read and error together, error empty";
70 $pid = open3 'WRITE', 'READ', '', $perl, '-e', cmd_line(<<'EOF');
73 print STDERR scalar <STDIN>;
75 print WRITE "$desc\n";
76 like(scalar <READ>, qr/\A$desc\r?\n\z/);
77 print WRITE "$desc [again]\n";
78 like(scalar <READ>, qr/\A$desc \[again\]\r?\n\z/);
81 is(pipe(PIPE_READ, PIPE_WRITE), 1);
82 $pid = open3 '<&PIPE_READ', 'READ', '',
83 $perl, '-e', cmd_line('print scalar <STDIN>');
85 print PIPE_WRITE "dup writer\n";
87 like(scalar <READ>, qr/\Adup writer\r?\n\z/);
90 my $TB = Test::Builder->new();
91 my $test = $TB->current_test;
93 $pid = open3 'WRITE', '>&STDOUT', 'ERROR',
94 $perl, '-e', cmd_line('print scalar <STDIN>');
96 print WRITE "ok $test\n";
101 $pid = IPC::Open3::open3('QWACK_WAAK_WAAK', '>&STDOUT', 'ERROR',
102 $perl, '-e', main::cmd_line('print scalar <STDIN>'));
105 print QWACK_WAAK_WAAK "ok $test # filenames qualified to their package\n";
109 # dup error: This particular case, duping stderr onto the existing
110 # stdout but putting stdout somewhere else, is a good case because it
112 $pid = open3 'WRITE', 'READ', '>&STDOUT',
113 $perl, '-e', cmd_line('print STDERR scalar <STDIN>');
115 print WRITE "ok $test\n";
118 foreach (['>&STDOUT', 'both named'],
121 my ($err, $desc) = @$_;
122 $pid = open3 'WRITE', '>&STDOUT', $err, $perl, '-e', cmd_line(<<'EOF');
124 print STDOUT scalar <STDIN>;
125 print STDERR scalar <STDIN>;
127 printf WRITE "ok %d # dup reader and error together, $desc\n", ++$test
132 # command line in single parameter variant of open3
133 # for understanding of Config{'sh'} test see exec description in camel book
134 my $cmd = 'print(scalar(<STDIN>))';
135 $cmd = $Config{'sh'} =~ /sh/ ? "'$cmd'" : cmd_line($cmd);
136 $pid = eval { open3 'WRITE', '>&STDOUT', 'ERROR', "$perl -e " . $cmd; };
140 print WRITE "not ok $test\n";
144 print WRITE "ok $test\n";
147 $TB->current_test($test);
151 local $::TODO = "$^O returns a pid and doesn't throw an exception"
153 $pid = eval { open3 'WRITE', 'READ', 'ERROR', '/non/existent/program'; };
155 'open3 of a non existent program fails with an exception in the parent')
156 or do {waitpid $pid, 0};
159 $pid = eval { open3 'WRITE', '', 'ERROR', '/non/existent/program'; };
160 like($@, qr/^open3: Modification of a read-only value attempted at /,
161 'open3 faults read-only parameters correctly') or do {waitpid $pid, 0};
163 foreach my $handle (qw (DUMMY STDIN STDOUT STDERR)) {
165 my $out = IO::Handle->new();
167 local $SIG{__WARN__} = sub {
168 open my $fh, '>/dev/tty';
169 return if "@_" =~ m!^Use of uninitialized value \$fd.*IO/Handle\.pm!;
173 open3 undef, $out, undef, $perl, '-le', "print q _# ${handle}_"
175 is($@, '', "No errors with localised $handle");
176 cmp_ok($pid, '>', 0, "Got a pid with localised $handle");
177 if ($handle eq 'STDOUT') {
178 is(<$out>, undef, "Expected no output with localised $handle");
180 like(<$out>, qr/\A# $handle\r?\n\z/,
181 "Expected output with localised $handle");