Commit | Line | Data |
---|---|---|
8d063cd8 LW |
1 | #!./perl |
2 | ||
2d7bc9fa CK |
3 | BEGIN { |
4 | chdir 't' if -d 't'; | |
5 | @INC = '../lib'; | |
6 | require './test.pl'; | |
7 | } | |
8d063cd8 | 8 | |
cd0ac484 | 9 | plan tests => 26; |
5e61c969 | 10 | |
8d063cd8 | 11 | @x = (1, 2, 3); |
2d7bc9fa | 12 | is( join(':',@x), '1:2:3', 'join an array with character'); |
8d063cd8 | 13 | |
2d7bc9fa | 14 | is( join('',1,2,3), '123', 'join list with no separator'); |
8d063cd8 | 15 | |
2d7bc9fa | 16 | is( join(':',split(/ /,"1 2 3")), '1:2:3', 'join implicit array with character'); |
c212fd85 IZ |
17 | |
18 | my $f = 'a'; | |
19 | $f = join ',', 'b', $f, 'e'; | |
2d7bc9fa | 20 | is( $f, 'b,a,e', 'join list back to self, middle of list'); |
c212fd85 IZ |
21 | |
22 | $f = 'a'; | |
23 | $f = join ',', $f, 'b', 'e'; | |
2d7bc9fa | 24 | is( $f, 'a,b,e', 'join list back to self, beginning of list'); |
c212fd85 IZ |
25 | |
26 | $f = 'a'; | |
27 | $f = join $f, 'b', 'e', 'k'; | |
2d7bc9fa | 28 | is( $f, 'baeak', 'join back to self, self is join character'); |
1426bbf4 MG |
29 | |
30 | # 7,8 check for multiple read of tied objects | |
31 | { package X; | |
32 | sub TIESCALAR { my $x = 7; bless \$x }; | |
33 | sub FETCH { my $y = shift; $$y += 5 }; | |
34 | tie my $t, 'X'; | |
35 | my $r = join ':', $t, 99, $t, 99; | |
2d7bc9fa | 36 | main::is($r, '12:99:17:99', 'check for multiple read of tied objects, with separator'); |
1426bbf4 | 37 | $r = join '', $t, 99, $t, 99; |
2d7bc9fa | 38 | main::is($r, '22992799', 'check for multiple read of tied objects, w/o separator, and magic'); |
1426bbf4 MG |
39 | }; |
40 | ||
41 | # 9,10 and for multiple read of undef | |
42 | { my $s = 5; | |
43 | local ($^W, $SIG{__WARN__}) = ( 1, sub { $s+=4 } ); | |
44 | my $r = join ':', 'a', undef, $s, 'b', undef, $s, 'c'; | |
2d7bc9fa | 45 | is( $r, 'a::9:b::13:c', 'multiple read of undef, with separator'); |
1426bbf4 | 46 | my $r = join '', 'a', undef, $s, 'b', undef, $s, 'c'; |
2d7bc9fa | 47 | is( $r, 'a17b21c', '... and without separator'); |
1426bbf4 | 48 | }; |
13e8c8e3 JH |
49 | |
50 | { my $s = join("", chr(0x1234), chr(0xff)); | |
2d7bc9fa | 51 | is( $s, "\x{1234}\x{ff}", 'join two characters with multiple bytes, get two characters'); |
13e8c8e3 JH |
52 | } |
53 | ||
54 | { my $s = join(chr(0xff), chr(0x1234), ""); | |
2d7bc9fa | 55 | is( $s, "\x{1234}\x{ff}", 'high byte character as separator, 1 multi-byte character in front'); |
13e8c8e3 JH |
56 | } |
57 | ||
58 | { my $s = join(chr(0x1234), chr(0xff), chr(0x2345)); | |
2d7bc9fa | 59 | is( $s, "\x{ff}\x{1234}\x{2345}", 'multibyte character as separator'); |
13e8c8e3 JH |
60 | } |
61 | ||
62 | { my $s = join(chr(0xff), chr(0x1234), chr(0xfe)); | |
2d7bc9fa | 63 | is( $s, "\x{1234}\x{ff}\x{fe}", 'high byte as separator, multi-byte and high byte list'); |
13e8c8e3 JH |
64 | } |
65 | ||
cd0ac484 VE |
66 | { my $s = join('x', ()); |
67 | is( $s, '', 'join should return empty string for empty list'); | |
68 | } | |
69 | ||
70 | { my $s = join('', ()); | |
71 | is( $s, '', 'join should return empty string for empty list and empty separator as well'); | |
72 | } | |
73 | ||
74 | { my $w; | |
75 | local $SIG{__WARN__} = sub { $w = shift }; | |
76 | use warnings "uninitialized"; | |
77 | my $s = join(undef, ()); | |
78 | is( $s, '', 'join should return empty string for empty list, when separator is undef'); | |
c61bfa6a TC |
79 | # this warning isn't normative, the implementation may choose to |
80 | # not evaluate the separator as a string if the list has fewer than | |
81 | # two elements | |
cd0ac484 VE |
82 | like $w, qr/^Use of uninitialized value in join/, "should warn if separator is undef"; |
83 | } | |
84 | ||
85 | ||
e4803c42 TS |
86 | { # [perl #24846] $jb2 should be in bytes, not in utf8. |
87 | my $b = "abc\304"; | |
88 | my $u = "abc\x{0100}"; | |
89 | ||
90 | sub join_into_my_variable { | |
91 | my $r = join("", @_); | |
92 | return $r; | |
93 | } | |
94 | ||
2d7bc9fa CK |
95 | sub byte_is { |
96 | use bytes; | |
97 | return $_[0] eq $_[1] ? pass($_[2]) : fail($_[2]); | |
98 | } | |
99 | ||
e4803c42 TS |
100 | my $jb1 = join_into_my_variable("", $b); |
101 | my $ju1 = join_into_my_variable("", $u); | |
102 | my $jb2 = join_into_my_variable("", $b); | |
103 | my $ju2 = join_into_my_variable("", $u); | |
104 | ||
2d7bc9fa | 105 | note( 'utf8 and byte checks, perl #24846' ); |
e4803c42 | 106 | |
2d7bc9fa CK |
107 | byte_is($jb1, $b); |
108 | is( $jb1, $b ); | |
21703f85 | 109 | |
2d7bc9fa CK |
110 | byte_is($ju1, $u); |
111 | is( $ju1, $u ); | |
21703f85 | 112 | |
2d7bc9fa CK |
113 | byte_is($jb2, $b); |
114 | is( $jb2, $b ); | |
115 | ||
116 | byte_is($ju2, $u); | |
117 | is( $ju2, $u ); | |
e4803c42 | 118 | } |
2d7bc9fa | 119 |