xref: /openbsd/gnu/usr.bin/perl/lib/bytes.t (revision 3d61058a) 
1#!perl
2
3use strict;
4use warnings;
5
6BEGIN {
7    chdir 't' if -d 't';
8    @INC = '../lib';
9    require './test.pl';
10}
11
12plan tests => 29;
13
14my $a = chr(0x100);
15
16is(ord($a), 0x100, "ord sanity check");
17is(length($a), 1,  "length sanity check");
18is(substr($a, 0, 1), "\x{100}",  "substr sanity check");
19is(index($a, "\x{100}"),  0, "index sanity check");
20is(rindex($a, "\x{100}"), 0, "rindex sanity check");
21{
22    no warnings 'prototype'; # bytes::length() called too early to check prototype at...
23    is(bytes::length($a), 2,  "bytes::length sanity check");
24    is(bytes::chr(0x100), chr(0),  "bytes::chr sanity check");
25}
26
27{
28    use bytes;
29    my $b = chr(0x100); # affected by 'use bytes'
30    is(ord($b), 0, "chr truncates under use bytes");
31    is(length($b), 1, "length truncated under use bytes");
32    is(bytes::ord($b), 0, "bytes::ord truncated under use bytes");
33    is(bytes::length($b), 1, "bytes::length truncated under use bytes");
34    is(bytes::substr($b, 0, 1), "\0", "bytes::substr truncated under use bytes");
35}
36
37my $c = chr(0x100);
38my $c2 = chr(0x2c7); # a unicode character that doesn't fold
39utf8::encode(my $c2_utf8 = $c2);
40
41{
42    use bytes;
43    if ($::IS_EBCDIC) { # EBCDIC?
44	is(ord($c), 0x8c, "ord under use bytes looks at the 1st byte");
45    } else {
46	is(ord($c), 0xc4, "ord under use bytes looks at the 1st byte");
47    }
48    is(length($c), 2, "length under use bytes looks at bytes");
49    is(bytes::length($c), 2, "bytes::length under use bytes looks at bytes");
50    if ($::IS_EBCDIC) { # EBCDIC?
51	is(bytes::ord($c), 0x8c, "bytes::ord under use bytes looks at the 1st byte");
52    } else {
53	is(bytes::ord($c), 0xc4, "bytes::ord under use bytes looks at the 1st byte");
54    }
55    # In z/OS \x41,\x8c are the codepoints corresponding to \x80,\xc4 respectively under ASCII platform
56    if ($::IS_EBCDIC) { # EBCDIC?
57        is(bytes::substr($c, 0, 1), "\x8c", "bytes::substr under use bytes looks at bytes");
58        is(bytes::index($c, "\x41"), 1, "bytes::index under use bytes looks at bytes");
59        is(bytes::rindex($c, "\x8c"), 0, "bytes::rindex under use bytes looks at bytes");
60
61    }
62    else{
63        is(bytes::substr($c, 0, 1), "\xc4", "bytes::substr under use bytes looks at bytes");
64        is(bytes::index($c, "\x80"), 1, "bytes::index under use bytes looks at bytes");
65        is(bytes::rindex($c, "\xc4"), 0, "bytes::rindex under use bytes looks at bytes");
66    }
67
68    # [perl #117355] [lu]cfirst don't respect 'use bytes'
69    # and if there's other tests for lc/uc under bytes I didn't find them
70    is(lc($c2), $c2_utf8, "lc under use bytes returns bytes");
71    is(uc($c2), $c2_utf8, "uc under use bytes returns bytes");
72    is(lcfirst($c2), $c2_utf8, "lcfirst under use bytes returns bytes");
73    is(ucfirst($c2), $c2_utf8, "unfirst under use bytes returns bytes");
74}
75
76is(prototype bytes->can($_), prototype CORE->can($_), "bytes::$_ proto matches CORE::$_")
77    for qw( chr index length ord rindex substr );
78