1#!./perl 2 3my $PERLIO; 4 5BEGIN { 6 chdir 't' if -d 't'; 7 @INC = '../lib'; 8 require './test.pl'; 9 unless (find PerlIO::Layer 'perlio') { 10 print "1..0 # Skip: not perlio\n"; 11 exit 0; 12 } 13 eval 'use Encode'; 14 if ($@ =~ /dynamic loading not available/) { 15 print "1..0 # miniperl cannot load Encode\n"; 16 exit 0; 17 } 18 # Makes testing easier. 19 $ENV{PERLIO} = 'stdio' if exists $ENV{PERLIO} && $ENV{PERLIO} eq ''; 20 if (exists $ENV{PERLIO} && $ENV{PERLIO} !~ /^(stdio|perlio|mmap)$/) { 21 # We are not prepared for anything else. 22 print "1..0 # PERLIO='$ENV{PERLIO}' unknown\n"; 23 exit 0; 24 } 25 $PERLIO = exists $ENV{PERLIO} ? $ENV{PERLIO} : "(undef)"; 26} 27 28use Config; 29 30my $DOSISH = $^O =~ /^(?:MSWin32|os2|dos|NetWare|mint)$/ ? 1 : 0; 31 $DOSISH = 1 if !$DOSISH and $^O =~ /^uwin/; 32my $NONSTDIO = exists $ENV{PERLIO} && $ENV{PERLIO} ne 'stdio' ? 1 : 0; 33my $FASTSTDIO = $Config{d_faststdio} && $Config{usefaststdio} ? 1 : 0; 34 35my $NTEST = 43 - (($DOSISH || !$FASTSTDIO) ? 7 : 0) - ($DOSISH ? 5 : 0); 36 37plan tests => $NTEST; 38 39print <<__EOH__; 40# PERLIO = $PERLIO 41# DOSISH = $DOSISH 42# NONSTDIO = $NONSTDIO 43# FASTSTDIO = $FASTSTDIO 44__EOH__ 45 46SKIP: { 47 # FIXME - more of these could be tested without Encode or full perl 48 skip("This perl does not have Encode", $NTEST) 49 unless " $Config{extensions} " =~ / Encode /; 50 skip("miniperl does not have Encode", $NTEST) if $ENV{PERL_CORE_MINITEST}; 51 52 sub check { 53 my ($result, $expected, $id) = @_; 54 # An interesting dance follows where we try to make the following 55 # IO layer stack setups to compare equal: 56 # 57 # PERLIO UNIX-like DOS-like 58 # 59 # unset / "" unix perlio / stdio [1] unix crlf 60 # stdio unix perlio / stdio [1] stdio 61 # perlio unix perlio unix perlio 62 # mmap unix mmap unix mmap 63 # 64 # [1] "stdio" if Configure found out how to do "fast stdio" (depends 65 # on the stdio implementation) and in Perl 5.8, otherwise "unix perlio" 66 # 67 if ($NONSTDIO) { 68 # Get rid of "unix". 69 shift @$result if $result->[0] eq "unix"; 70 # Change expectations. 71 if ($FASTSTDIO) { 72 $expected->[0] = $ENV{PERLIO}; 73 } else { 74 $expected->[0] = $ENV{PERLIO} if $expected->[0] eq "stdio"; 75 } 76 } elsif (!$FASTSTDIO && !$DOSISH) { 77 splice(@$result, 0, 2, "stdio") 78 if @$result >= 2 && 79 $result->[0] eq "unix" && 80 $result->[1] eq "perlio"; 81 } elsif ($DOSISH) { 82 splice(@$result, 0, 2, "stdio") 83 if @$result >= 2 && 84 $result->[0] eq "unix" && 85 $result->[1] eq "crlf"; 86 } 87 if ($DOSISH && grep { $_ eq 'crlf' } @$expected) { 88 # 5 tests potentially skipped because 89 # DOSISH systems already have a CRLF layer 90 # which will make new ones not stick. 91 @$expected = grep { $_ ne 'crlf' } @$expected; 92 } 93 my $n = scalar @$expected; 94 is($n, scalar @$expected, "$id - layers == $n"); 95 for (my $i = 0; $i < $n; $i++) { 96 my $j = $expected->[$i]; 97 if (ref $j eq 'CODE') { 98 ok($j->($result->[$i]), "$id - $i is ok"); 99 } else { 100 is($result->[$i], $j, 101 sprintf("$id - $i is %s", 102 defined $j ? $j : "undef")); 103 } 104 } 105 } 106 107 check([ PerlIO::get_layers(STDIN) ], 108 [ "stdio" ], 109 "STDIN"); 110 111 open(F, ">:crlf", "afile"); 112 113 check([ PerlIO::get_layers(F) ], 114 [ qw(stdio crlf) ], 115 "open :crlf"); 116 117 binmode(F, ":encoding(sjis)"); # "sjis" will be canonized to "shiftjis" 118 119 check([ PerlIO::get_layers(F) ], 120 [ qw[stdio crlf encoding(shiftjis) utf8] ], 121 ":encoding(sjis)"); 122 123 binmode(F, ":pop"); 124 125 check([ PerlIO::get_layers(F) ], 126 [ qw(stdio crlf) ], 127 ":pop"); 128 129 binmode(F, ":raw"); 130 131 check([ PerlIO::get_layers(F) ], 132 [ "stdio" ], 133 ":raw"); 134 135 binmode(F, ":utf8"); 136 137 check([ PerlIO::get_layers(F) ], 138 [ qw(stdio utf8) ], 139 ":utf8"); 140 141 binmode(F, ":bytes"); 142 143 check([ PerlIO::get_layers(F) ], 144 [ "stdio" ], 145 ":bytes"); 146 147 binmode(F, ":encoding(utf8)"); 148 149 check([ PerlIO::get_layers(F) ], 150 [ qw[stdio encoding(utf8) utf8] ], 151 ":encoding(utf8)"); 152 153 binmode(F, ":raw :crlf"); 154 155 check([ PerlIO::get_layers(F) ], 156 [ qw(stdio crlf) ], 157 ":raw:crlf"); 158 159 binmode(F, ":raw :encoding(latin1)"); # "latin1" will be canonized 160 161 # 7 tests potentially skipped. 162 unless ($DOSISH || !$FASTSTDIO) { 163 my @results = PerlIO::get_layers(F, details => 1); 164 165 # Get rid of the args and the flags. 166 splice(@results, 1, 2) if $NONSTDIO; 167 168 check([ @results ], 169 [ "stdio", undef, sub { $_[0] > 0 }, 170 "encoding", "iso-8859-1", sub { $_[0] & PerlIO::F_UTF8() } ], 171 ":raw:encoding(latin1)"); 172 } 173 174 binmode(F); 175 176 check([ PerlIO::get_layers(F) ], 177 [ "stdio" ], 178 "binmode"); 179 180 close F; 181 182 { 183 use open(IN => ":crlf", OUT => ":encoding(cp1252)"); 184 185 open F, "<afile"; 186 open G, ">afile"; 187 188 check([ PerlIO::get_layers(F, input => 1) ], 189 [ qw(stdio crlf) ], 190 "use open IN"); 191 192 check([ PerlIO::get_layers(G, output => 1) ], 193 [ qw[stdio encoding(cp1252) utf8] ], 194 "use open OUT"); 195 196 close F; 197 close G; 198 } 199 200 1 while unlink "afile"; 201} 202