xref: /openbsd/gnu/usr.bin/perl/t/op/study.t (revision 404b540a)
1#!./perl
2
3BEGIN {
4    chdir 't' if -d 't';
5    @INC = '../lib';
6}
7
8$Ok_Level = 0;
9my $test = 1;
10sub ok ($;$) {
11    my($ok, $name) = @_;
12
13    local $_;
14
15    # You have to do it this way or VMS will get confused.
16    printf "%s $test%s\n", $ok   ? 'ok' : 'not ok',
17                           $name ? " - $name" : '';
18
19    printf "# Failed test at line %d\n", (caller($Ok_Level))[2] unless $ok;
20
21    $test++;
22    return $ok;
23}
24
25sub nok ($;$) {
26    my($nok, $name) = @_;
27    local $Ok_Level = 1;
28    ok( !$nok, $name );
29}
30
31use Config;
32my $have_alarm = $Config{d_alarm};
33sub alarm_ok (&) {
34    my $test = shift;
35
36    local $SIG{ALRM} = sub { die "timeout\n" };
37
38    my $match;
39    eval {
40        alarm(2) if $have_alarm;
41        $match = $test->();
42        alarm(0) if $have_alarm;
43    };
44
45    local $Ok_Level = 1;
46    ok( !$match && !$@, 'testing studys that used to hang' );
47}
48
49
50print "1..26\n";
51
52$x = "abc\ndef\n";
53study($x);
54
55ok($x =~ /^abc/);
56ok($x !~ /^def/);
57
58# used to be a test for $*
59ok($x =~ /^def/m);
60
61$_ = '123';
62study;
63ok(/^([0-9][0-9]*)/);
64
65nok($x =~ /^xxx/);
66nok($x !~ /^abc/);
67
68ok($x =~ /def/);
69nok($x !~ /def/);
70
71study($x);
72ok($x !~ /.def/);
73nok($x =~ /.def/);
74
75ok($x =~ /\ndef/);
76nok($x !~ /\ndef/);
77
78$_ = 'aaabbbccc';
79study;
80ok(/(a*b*)(c*)/ && $1 eq 'aaabbb' && $2 eq 'ccc');
81ok(/(a+b+c+)/ && $1 eq 'aaabbbccc');
82
83nok(/a+b?c+/);
84
85$_ = 'aaabccc';
86study;
87ok(/a+b?c+/);
88ok(/a*b+c*/);
89
90$_ = 'aaaccc';
91study;
92ok(/a*b?c*/);
93nok(/a*b+c*/);
94
95$_ = 'abcdef';
96study;
97ok(/bcd|xyz/);
98ok(/xyz|bcd/);
99
100ok(m|bc/*d|);
101
102ok(/^$_$/);
103
104# used to be a test for $*
105ok("ab\ncd\n" =~ /^cd/m);
106
107if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'MacOS') {
108    # Even with the alarm() OS/390 and BS2000 can't manage these tests
109    # (Perl just goes into a busy loop, luckily an interruptable one)
110    for (25..26) { print "not ok $_ # TODO compiler bug?\n" }
111    $test += 2;
112} else {
113    # [ID 20010618.006] tests 25..26 may loop
114
115    $_ = 'FGF';
116    study;
117    alarm_ok { /G.F$/ };
118    alarm_ok { /[F]F$/ };
119}
120
121