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
|
use strict;
use warnings;
BEGIN {
if ($ENV{'PERL_CORE'}){
chdir('t');
unshift(@INC, '../lib');
}
use Config;
if (! $Config{'useithreads'}) {
print("1..0 # Skip: Perl not compiled with 'useithreads'\n");
exit(0);
}
}
use threads;
use Thread::Queue;
if ($] == 5.008) {
require 't/test.pl'; # Test::More work-alike for Perl 5.8.0
} else {
require Test::More;
}
Test::More->import();
plan('tests' => 20);
my $q = Thread::Queue->new(1..10);
ok($q, 'New queue');
threads->create(sub {
# Default count = 1
is($q->extract(), 1, 'No args'); # 2..10 left
is($q->extract(0), 2, 'Head'); # 3..10 left
is($q->extract(5), 8, 'Pos index'); # 3..7,9,10 left
is($q->extract(-3), 7, 'Neg index'); # 3..6,9,10 left
my $x = $q->extract(20); # unchanged
ok(! defined($x), 'Big index');
$x = $q->extract(-20); # unchanged
ok(! defined($x), 'Big neg index');
})->join();
$q = Thread::Queue->new(1..10);
ok($q, 'New queue');
threads->create(sub {
my @x = $q->extract(0, 2); # 3..10 left
is_deeply(\@x, [1,2], '2 from head');
@x = $q->extract(6, 2); # 3..8 left
is_deeply(\@x, [9,10], '2 from tail');
@x = $q->extract(2, 2); # 3,4,7,8 left
is_deeply(\@x, [5,6], '2 from middle');
@x = $q->extract(2, 4); # 3,4 left
is_deeply(\@x, [7,8], 'Lots from tail');
@x = $q->extract(3, 4); # unchanged
is_deeply(\@x, [], 'Too far');
})->join();
$q = Thread::Queue->new(1..10);
ok($q, 'New queue');
threads->create(sub {
my @x = $q->extract(-4, 2); # 1..6,9,10 left
is_deeply(\@x, [7,8], 'Neg index');
@x = $q->extract(-2, 4); # 1..6 left
is_deeply(\@x, [9,10], 'Lots from tail');
@x = $q->extract(-6, 2); # 3..6 left
is_deeply(\@x, [1,2], 'Max neg index');
@x = $q->extract(-10, 3); # unchanged
is_deeply(\@x, [], 'Too far');
@x = $q->extract(-6, 3); # 4..6 left
is_deeply(\@x, [3], 'Neg overlap');
@x = $q->extract(-5, 10); # empty
is_deeply(\@x, [4..6], 'Neg big overlap');
})->join();
# EOF
|
