#!./perl -w
# Tests for the coderef-in-@INC feature
use Config;
my $can_fork = 0;
my $minitest = $ENV{PERL_CORE_MINITEST};
my $has_perlio = $Config{useperlio};
BEGIN {
chdir 't' if -d 't';
@INC = qw(. ../lib);
}
if (!$minitest) {
if ($Config{d_fork} && eval 'require POSIX; 1') {
$can_fork = 1;
}
}
use strict;
use File::Spec;
require "test.pl";
plan(tests => 49 + !$minitest * (3 + 14 * $can_fork));
sub get_temp_fh {
my $f = tempfile();
open my $fh, ">$f" or die "Can't create $f: $!";
print $fh "package ".substr($_[0],0,-3).";\n1;\n";
print $fh $_[1] if @_ > 1;
close $fh or die "Couldn't close: $!";
open $fh, $f or die "Can't open $f: $!";
return $fh;
}
sub fooinc {
my ($self, $filename) = @_;
if (substr($filename,0,3) eq 'Foo') {
return get_temp_fh($filename);
}
else {
return undef;
}
}
push @INC, \&fooinc;
my $evalret = eval { require Bar; 1 };
ok( !$evalret, 'Trying non-magic package' );
$evalret = eval { require Foo; 1 };
die $@ if $@;
ok( $evalret, 'require Foo; magic via code ref' );
ok( exists $INC{'Foo.pm'}, ' %INC sees Foo.pm' );
is( ref $INC{'Foo.pm'}, 'CODE', ' val Foo.pm is a coderef in %INC' );
is( $INC{'Foo.pm'}, \&fooinc, ' val Foo.pm is correct in %INC' );
$evalret = eval "use Foo1; 1;";
die $@ if $@;
ok( $evalret, 'use Foo1' );
ok( exists $INC{'Foo1.pm'}, ' %INC sees Foo1.pm' );
is( ref $INC{'Foo1.pm'}, 'CODE', ' val Foo1.pm is a coderef in %INC' );
is( $INC{'Foo1.pm'}, \&fooinc, ' val Foo1.pm is correct in %INC' );
$evalret = eval { do 'Foo2.pl'; 1 };
die $@ if $@;
ok( $evalret, 'do "Foo2.pl"' );
ok( exists $INC{'Foo2.pl'}, ' %INC sees Foo2.pl' );
is( ref $INC{'Foo2.pl'}, 'CODE', ' val Foo2.pl is a coderef in %INC' );
is( $INC{'Foo2.pl'}, \&fooinc, ' val Foo2.pl is correct in %INC' );
pop @INC;
sub fooinc2 {
my ($self, $filename) = @_;
if (substr($filename, 0, length($self->[1])) eq $self->[1]) {
return get_temp_fh($filename);
}
else {
return undef;
}
}
my $arrayref = [ \&fooinc2, 'Bar' ];
push @INC, $arrayref;
$evalret = eval { require Foo; 1; };
die $@ if $@;
ok( $evalret, 'Originally loaded packages preserved' );
$evalret = eval { require Foo3; 1; };
ok( !$evalret, 'Original magic INC purged' );
$evalret = eval { require Bar; 1 };
die $@ if $@;
ok( $evalret, 'require Bar; magic via array ref' );
ok( exists $INC{'Bar.pm'}, ' %INC sees Bar.pm' );
is( ref $INC{'Bar.pm'}, 'ARRAY', ' val Bar.pm is an arrayref in %INC' );
is( $INC{'Bar.pm'}, $arrayref, ' val Bar.pm is correct in %INC' );
ok( eval "use Bar1; 1;", 'use Bar1' );
ok( exists $INC{'Bar1.pm'}, ' %INC sees Bar1.pm' );
is( ref $INC{'Bar1.pm'}, 'ARRAY', ' val Bar1.pm is an arrayref in %INC' );
is( $INC{'Bar1.pm'}, $arrayref, ' val Bar1.pm is correct in %INC' );
ok( eval { do 'Bar2.pl'; 1 }, 'do "Bar2.pl"' );
ok( exists $INC{'Bar2.pl'}, ' %INC sees Bar2.pl' );
is( ref $INC{'Bar2.pl'}, 'ARRAY', ' val Bar2.pl is an arrayref in %INC' );
is( $INC{'Bar2.pl'}, $arrayref, ' val Bar2.pl is correct in %INC' );
pop @INC;
sub FooLoader::INC {
my ($self, $filename) = @_;
if (substr($filename,0,4) eq 'Quux') {
return get_temp_fh($filename);
}
else {
return undef;
}
}
my $href = bless( {}, 'FooLoader' );
push @INC, $href;
$evalret = eval { require Quux; 1 };
die $@ if $@;
ok( $evalret, 'require Quux; magic via hash object' );
ok( exists $INC{'Quux.pm'}, ' %INC sees Quux.pm' );
is( ref $INC{'Quux.pm'}, 'FooLoader',
' val Quux.pm is an object in %INC' );
is( $INC{'Quux.pm'}, $href, ' val Quux.pm is correct in %INC' );
pop @INC;
my $aref = bless( [], 'FooLoader' );
push @INC, $aref;
$evalret = eval { require Quux1; 1 };
die $@ if $@;
ok( $evalret, 'require Quux1; magic via array object' );
ok( exists $INC{'Quux1.pm'}, ' %INC sees Quux1.pm' );
is( ref $INC{'Quux1.pm'}, 'FooLoader',
' val Quux1.pm is an object in %INC' );
is( $INC{'Quux1.pm'}, $aref, ' val Quux1.pm is correct in %INC' );
pop @INC;
my $sref = bless( \(my $x = 1), 'FooLoader' );
push @INC, $sref;
$evalret = eval { require Quux2; 1 };
die $@ if $@;
ok( $evalret, 'require Quux2; magic via scalar object' );
ok( exists $INC{'Quux2.pm'}, ' %INC sees Quux2.pm' );
is( ref $INC{'Quux2.pm'}, 'FooLoader',
' val Quux2.pm is an object in %INC' );
is( $INC{'Quux2.pm'}, $sref, ' val Quux2.pm is correct in %INC' );
pop @INC;
push @INC, sub {
my ($self, $filename) = @_;
if (substr($filename,0,4) eq 'Toto') {
$INC{$filename} = 'xyz';
return get_temp_fh($filename);
}
else {
return undef;
}
};
$evalret = eval { require Toto; 1 };
die $@ if $@;
ok( $evalret, 'require Toto; magic via anonymous code ref' );
ok( exists $INC{'Toto.pm'}, ' %INC sees Toto.pm' );
ok( ! ref $INC{'Toto.pm'}, q/ val Toto.pm isn't a ref in %INC/ );
is( $INC{'Toto.pm'}, 'xyz', ' val Toto.pm is correct in %INC' );
pop @INC;
push @INC, sub {
my ($self, $filename) = @_;
if ($filename eq 'abc.pl') {
return get_temp_fh($filename, qq(return "abc";\n));
}
else {
return undef;
}
};
my $ret = "";
$ret ||= do 'abc.pl';
is( $ret, 'abc', 'do "abc.pl" sees return value' );
{
my $filename = './Foo.pm';
#local @INC; # local fails on tied @INC
my @old_INC = @INC; # because local doesn't work on tied arrays
@INC = sub { $filename = 'seen'; return undef; };
eval { require $filename; };
is( $filename, 'seen', 'the coderef sees fully-qualified pathnames' );
@INC = @old_INC;
}
# this will segfault if it fails
sub PVBM () { 'foo' }
{ my $dummy = index 'foo', PVBM }
# I don't know whether these requires should succeed or fail. 5.8 failed
# all of them; 5.10 with an ordinary constant in place of PVBM lets the
# latter two succeed. For now I don't care, as long as they don't
# segfault :).
unshift @INC, sub { PVBM };
eval 'require foo';
ok( 1, 'returning PVBM doesn\'t segfault require' );
eval 'use foo';
ok( 1, 'returning PVBM doesn\'t segfault use' );
shift @INC;
unshift @INC, sub { \PVBM };
eval 'require foo';
ok( 1, 'returning PVBM ref doesn\'t segfault require' );
eval 'use foo';
ok( 1, 'returning PVBM ref doesn\'t segfault use' );
shift @INC;
exit if $minitest;
SKIP: {
skip( "No PerlIO available", 3 ) unless $has_perlio;
pop @INC;
push @INC, sub {
my ($cr, $filename) = @_;
my $module = $filename; $module =~ s,/,::,g; $module =~ s/\.pm$//;
open my $fh, '<',
\"package $module; sub complain { warn q() }; \$::file = __FILE__;"
or die $!;
$INC{$filename} = "/custom/path/to/$filename";
return $fh;
};
require Publius::Vergilius::Maro;
is( $INC{'Publius/Vergilius/Maro.pm'},
'/custom/path/to/Publius/Vergilius/Maro.pm', '%INC set correctly');
is( our $file, '/custom/path/to/Publius/Vergilius/Maro.pm',
'__FILE__ set correctly' );
{
my $warning;
local $SIG{__WARN__} = sub { $warning = shift };
Publius::Vergilius::Maro::complain();
like( $warning, qr{something's wrong at /custom/path/to/Publius/Vergilius/Maro.pm}, 'warn() reports correct file source' );
}
}
pop @INC;
if ($can_fork) {
require PerlIO::scalar;
# This little bundle of joy generates n more recursive use statements,
# with each module chaining the next one down to 0. If it works, then we
# can safely nest subprocesses
my $use_filter_too;
push @INC, sub {
return unless $_[1] =~ /^BBBLPLAST(\d+)\.pm/;
my $pid = open my $fh, "-|";
if ($pid) {
# Parent
return $fh unless $use_filter_too;
# Try filters and state in addition.
return ($fh, sub {s/$_[1]/pass/; return}, "die")
}
die "Can't fork self: $!" unless defined $pid;
# Child
my $count = $1;
# Lets force some fun with odd sized reads.
$| = 1;
print 'push @main::bbblplast, ';
print "$count;\n";
if ($count--) {
print "use BBBLPLAST$count;\n";
}
if ($use_filter_too) {
print "die('In $_[1]');";
} else {
print "pass('In $_[1]');";
}
print '"Truth"';
POSIX::_exit(0);
die "Can't get here: $!";
};
@::bbblplast = ();
require BBBLPLAST5;
is ("@::bbblplast", "0 1 2 3 4 5", "All ran");
foreach (keys %INC) {
delete $INC{$_} if /^BBBLPLAST/;
}
@::bbblplast = ();
$use_filter_too = 1;
require BBBLPLAST5;
is ("@::bbblplast", "0 1 2 3 4 5", "All ran with a filter");
}