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perl5db: add tests for v command
[perl5.git] / t / uni / chomp.t
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a6aa349d
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1#!./perl -w
2
3BEGIN {
b5efbd1f 4 chdir 't' if -d 't';
e4206093 5 require './test.pl';
b5b7b9ad 6 skip_all_without_perlio();
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7}
8
9use strict;
a6aa349d 10
a15a3d9b 11# 6 == @char; paired tests inside 3 nested loops,
1858f5c3 12# plus extra pair of tests in a loop, plus extra pair of tests.
a15a3d9b 13plan tests => 6 ** 3 * 2 + 6 * 2 + 2;
1858f5c3 14
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15my @char = (pack('U*', 0x40), "\x{4E00}", "\x{4E9C}", "\x{4E02}",
16 "\x{FF69}", "\x{304B}");
a6aa349d 17
a15a3d9b 18for my $rs (@char) {
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19 local $/ = $rs;
20 for my $start (@char) {
21 for my $end (@char) {
22 my $string = $start.$end;
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23 my ($expect, $return);
24 if ($end eq $rs) {
25 $expect = $start;
26 # The answer will always be a length in utf8, even if the
27 # scalar was encoded with a different length
28 $return = length ($end . "\x{100}") - 1;
29 } else {
30 $expect = $string;
31 $return = 0;
32 }
33 is (chomp ($string), $return);
34 is ($string, $expect); # "$enc \$/=$rs $start $end"
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35 }
36 }
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37 # chomp should not stringify references unless it decides to modify
38 # them
39 $_ = [];
40 my $got = chomp();
41 is ($got, 0);
42 is (ref($_), "ARRAY", "chomp ref (no modify)");
a6aa349d 43}
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44
45$/ = ")"; # the last char of something like "ARRAY(0x80ff6e4)"
46my $got = chomp();
47is ($got, 1);
48ok (!ref($_), "chomp ref (modify)");
49