public-inbox.git  about / heads / tags
an "archives first" approach to mailing lists
blob 2dcdf883420784afc13d275f4a152ec1213b7dbd 2251 bytes (raw)
name: t/spawn.t 	 # note: path name is non-authoritative(*)

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
 
# Copyright (C) 2015 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
use strict;
use warnings;
use Test::More;
use PublicInbox::Spawn qw(which spawn popen_rd);

{
	my $true = which('true');
	ok($true, "'true' command found with which()");
}

{
	my $pid = spawn(['true']);
	ok($pid, 'spawned process');
	is(waitpid($pid, 0), $pid, 'waitpid succeeds on spawned process');
	is($?, 0, 'true exited successfully');
}

{
	my ($r, $w);
	pipe $r, $w or die "pipe failed: $!";
	my $pid = spawn(['echo', 'hello world'], undef, { 1 => fileno($w) });
	close $w or die "close pipe[1] failed: $!";
	is(<$r>, "hello world\n", 'read stdout of spawned from pipe');
	is(waitpid($pid, 0), $pid, 'waitpid succeeds on spawned process');
	is($?, 0, 'true exited successfully');
}

{
	my ($r, $w);
	pipe $r, $w or die "pipe failed: $!";
	my $pid = spawn(['sh', '-c', 'echo $HELLO'],
		{ 'HELLO' => 'world' }, { 1 => fileno($w) });
	close $w or die "close pipe[1] failed: $!";
	is(<$r>, "world\n", 'read stdout of spawned from pipe');
	is(waitpid($pid, 0), $pid, 'waitpid succeeds on spawned process');
	is($?, 0, 'sh exited successfully');
}

{
	my ($r, $w);
	pipe $r, $w or die "pipe failed: $!";
	my $pid = spawn(['env'], {}, { -env => 1, 1 => fileno($w) });
	close $w or die "close pipe[1] failed: $!";
	ok(!defined(<$r>), 'read stdout of spawned from pipe');
	is(waitpid($pid, 0), $pid, 'waitpid succeeds on spawned process');
	is($?, 0, 'env(1) exited successfully');
}

{
	my $fh = popen_rd([qw(echo hello)]);
	ok(fileno($fh) >= 0, 'tied fileno works');
	my $l = <$fh>;
	is($l, "hello\n", 'tied readline works');
	$l = <$fh>;
	ok(!$l, 'tied readline works for EOF');
}

{
	my $fh = popen_rd([qw(printf foo\nbar)]);
	ok(fileno($fh) >= 0, 'tied fileno works');
	my @line = <$fh>;
	is_deeply(\@line, [ "foo\n", 'bar' ], 'wantarray works on readline');
}

{
	my $fh = popen_rd([qw(echo hello)]);
	my $buf;
	is(sysread($fh, $buf, 6), 6, 'sysread got 6 bytes');
	is($buf, "hello\n", 'tied gets works');
	is(sysread($fh, $buf, 6), 0, 'sysread got EOF');
	$? = 1;
	close $fh;
	is($?, 0, '$? set properly');
}

{
	my $fh = popen_rd([qw(false)]);
	close $fh;
	isnt($?, 0, '$? set properly: '.$?);
}

done_testing();

1;

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

git clone https://public-inbox.org/public-inbox.git
git clone http://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/public-inbox.git