1#!./perl
2
3BEGIN {
4	chdir 't' if -d 't';
5	@INC = '../lib';
6	push @INC, "::lib:$MacPerl::Architecture:" if $^O eq 'MacOS';
7	require Config; import Config;
8}
9
10use Test::More tests => 16;
11
12# open::import expects 'open' as its first argument, but it clashes with open()
13sub import {
14	open::import( 'open', @_ );
15}
16
17# can't use require_ok() here, with a name like 'open'
18ok( require 'open.pm', 'requiring open' );
19
20# this should fail
21eval { import() };
22like( $@, qr/needs explicit list of PerlIO layers/,
23	'import should fail without args' );
24
25# the hint bits shouldn't be set yet
26is( $^H & $open::hint_bits, 0,
27	'hint bits should not be set in $^H before open import' );
28
29# prevent it from loading I18N::Langinfo, so we can test encoding failures
30my $warn;
31local $SIG{__WARN__} = sub {
32	$warn .= shift;
33};
34
35# and it shouldn't be able to find this layer
36$warn = '';
37eval q{ no warnings 'layer'; use open IN => ':macguffin' ; };
38is( $warn, '',
39	'should not warn about unknown layer with bad layer provided' );
40
41$warn = '';
42eval q{ use warnings 'layer'; use open IN => ':macguffin' ; };
43like( $warn, qr/Unknown PerlIO layer/,
44	'should warn about unknown layer with bad layer provided' );
45
46# open :locale logic changed since open 1.04, new logic
47# difficult to test portably.
48
49# see if it sets the magic variables appropriately
50import( 'IN', ':crlf' );
51ok( $^H & $open::hint_bits,
52	'hint bits should be set in $^H after open import' );
53is( $^H{'open_IN'}, 'crlf', 'should have set crlf layer' );
54
55# it should reset them appropriately, too
56import( 'IN', ':raw' );
57is( $^H{'open_IN'}, 'raw', 'should have reset to raw layer' );
58
59# it dies if you don't set IN, OUT, or IO
60eval { import( 'sideways', ':raw' ) };
61like( $@, qr/Unknown PerlIO layer class/, 'should croak with unknown class' );
62
63# but it handles them all so well together
64import( 'IO', ':raw :crlf' );
65is( ${^OPEN}, ":raw :crlf\0:raw :crlf",
66	'should set multi types, multi layer' );
67is( $^H{'open_IO'}, 'crlf', 'should record last layer set in %^H' );
68
69SKIP: {
70    skip("no perlio, no :utf8", 4) unless (find PerlIO::Layer 'perlio');
71
72    eval <<EOE;
73    use open ':utf8';
74    open(O, ">utf8");
75    print O chr(0x100);
76    close O;
77    open(I, "<utf8");
78    is(ord(<I>), 0x100, ":utf8 single wide character round-trip");
79    close I;
80EOE
81
82    open F, ">a";
83    @a = map { chr(1 << ($_ << 2)) } 0..5; # 0x1, 0x10, .., 0x100000
84    unshift @a, chr(0); # ... and a null byte in front just for fun
85    print F @a;
86    close F;
87
88    sub systell {
89        use Fcntl 'SEEK_CUR';
90        sysseek($_[0], 0, SEEK_CUR);
91    }
92
93    require bytes; # not use
94
95    my $ok;
96
97    open F, "<:utf8", "a";
98    $ok = $a = 0;
99    for (@a) {
100        unless (
101		($c = sysread(F, $b, 1)) == 1  &&
102		length($b)               == 1  &&
103		ord($b)                  == ord($_) &&
104		systell(F)               == ($a += bytes::length($b))
105		) {
106	    print '# ord($_)           == ', ord($_), "\n";
107	    print '# ord($b)           == ', ord($b), "\n";
108	    print '# length($b)        == ', length($b), "\n";
109	    print '# bytes::length($b) == ', bytes::length($b), "\n";
110	    print '# systell(F)        == ', systell(F), "\n";
111	    print '# $a                == ', $a, "\n";
112	    print '# $c                == ', $c, "\n";
113	    last;
114	}
115	$ok++;
116    }
117    close F;
118    ok($ok == @a,
119       "on :utf8 streams sysread() should work on characters, not bytes");
120
121    # syswrite() on should work on characters, not bytes
122    open G, ">:utf8", "b";
123    $ok = $a = 0;
124    for (@a) {
125	unless (
126		($c = syswrite(G, $_, 1)) == 1 &&
127		systell(G)                == ($a += bytes::length($_))
128		) {
129	    print '# ord($_)           == ', ord($_), "\n";
130	    print '# bytes::length($_) == ', bytes::length($_), "\n";
131	    print '# systell(G)        == ', systell(G), "\n";
132	    print '# $a                == ', $a, "\n";
133	    print '# $c                == ', $c, "\n";
134	    print "not ";
135	    last;
136	}
137	$ok++;
138    }
139    close G;
140    ok($ok == @a,
141       "on :utf8 streams syswrite() should work on characters, not bytes");
142
143    open G, "<:utf8", "b";
144    $ok = $a = 0;
145    for (@a) {
146	unless (
147		($c = sysread(G, $b, 1)) == 1 &&
148		length($b)               == 1 &&
149		ord($b)                  == ord($_) &&
150		systell(G)               == ($a += bytes::length($_))
151		) {
152	    print '# ord($_)           == ', ord($_), "\n";
153	    print '# ord($b)           == ', ord($b), "\n";
154	    print '# length($b)        == ', length($b), "\n";
155	    print '# bytes::length($b) == ', bytes::length($b), "\n";
156	    print '# systell(G)        == ', systell(G), "\n";
157	    print '# $a                == ', $a, "\n";
158	    print '# $c                == ', $c, "\n";
159	    last;
160	}
161	$ok++;
162    }
163    close G;
164    ok($ok == @a,
165       "checking syswrite() output on :utf8 streams by reading it back in");
166}
167
168SKIP: {
169    skip("no perlio", 1) unless (find PerlIO::Layer 'perlio');
170    use open IN => ':non-existent';
171    eval {
172	require Symbol; # Anything that exists but we havn't loaded
173    };
174    like($@, qr/Can't locate Symbol|Recursive call/i,
175	 "test for an endless loop in PerlIO_find_layer");
176}
177
178END {
179    1 while unlink "utf8";
180    1 while unlink "a";
181    1 while unlink "b";
182}
183
184# the test cases beyond __DATA__ need to be executed separately
185
186__DATA__
187$ENV{LC_ALL} = 'nonexistent.euc';
188eval { open::_get_locale_encoding() };
189like( $@, qr/too ambiguous/, 'should die with ambiguous locale encoding' );
190%%%
191# the special :locale layer
192$ENV{LC_ALL} = $ENV{LANG} = 'ru_RU.KOI8-R';
193# the :locale will probe the locale environment variables like LANG
194use open OUT => ':locale';
195open(O, ">koi8");
196print O chr(0x430); # Unicode CYRILLIC SMALL LETTER A = KOI8-R 0xc1
197close O;
198open(I, "<koi8");
199printf "%#x\n", ord(<I>), "\n"; # this should print 0xc1
200close I;
201%%%
202