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|
#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
use strict;
use File::Spec;
use File::Path;
my $dir;
BEGIN
{
$dir = File::Spec->catdir( "auto-$$" );
unshift @INC, $dir;
}
use Test::More tests => 22;
# First we must set up some autoloader files
my $fulldir = File::Spec->catdir( $dir, 'auto', 'Foo' );
mkpath( $fulldir ) or die "Can't mkdir '$fulldir': $!";
open(FOO, '>', File::Spec->catfile( $fulldir, 'foo.al' ))
or die "Can't open foo file: $!";
print FOO <<'EOT';
package Foo;
sub foo { shift; shift || "foo" }
1;
EOT
close(FOO);
open(BAR, '>', File::Spec->catfile( $fulldir, 'bar.al' ))
or die "Can't open bar file: $!";
print BAR <<'EOT';
package Foo;
sub bar { shift; shift || "bar" }
1;
EOT
close(BAR);
open(BAZ, '>', File::Spec->catfile( $fulldir, 'bazmarkhian.al' ))
or die "Can't open bazmarkhian file: $!";
print BAZ <<'EOT';
package Foo;
sub bazmarkhianish { shift; shift || "baz" }
1;
EOT
close(BAZ);
open(BLECH, '>', File::Spec->catfile( $fulldir, 'blechanawilla.al' ))
or die "Can't open blech file: $!";
print BLECH <<'EOT';
package Foo;
sub blechanawilla { compilation error (
EOT
close(BLECH);
# This is just to keep the old SVR3 systems happy; they may fail
# to find the above file so we duplicate it where they should find it.
open(BLECH, '>', File::Spec->catfile( $fulldir, 'blechanawil.al' ))
or die "Can't open blech file: $!";
print BLECH <<'EOT';
package Foo;
sub blechanawilla { compilation error (
EOT
close(BLECH);
# Let's define the package
package Foo;
require AutoLoader;
AutoLoader->import( 'AUTOLOAD' );
sub new { bless {}, shift };
sub foo;
sub bazmarkhianish;
package main;
my $foo = Foo->new();
my $result = $foo->can( 'foo' );
ok( $result, 'can() first time' );
is( $foo->foo, 'foo', 'autoloaded first time' );
is( $foo->foo, 'foo', 'regular call' );
is( $result, \&Foo::foo, 'can() returns ref to regular installed sub' );
$result = $foo->can( 'bar' );
ok( $result, 'can() should work when importing AUTOLOAD too' );
is( $foo->bar, 'bar', 'regular call' );
is( $result, \&Foo::bar, '... returning ref to regular installed sub' );
eval {
$foo->will_fail;
};
like( $@, qr/^Can't locate/, 'undefined method' );
$result = $foo->can( 'will_fail' );
ok( ! $result, 'can() should fail on undefined methods' );
# Used to be trouble with this
eval {
my $foo = Foo->new();
die "oops";
};
like( $@, qr/oops/, 'indirect method call' );
# Pass regular expression variable to autoloaded function. This used
# to go wrong because AutoLoader used regular expressions to generate
# autoloaded filename.
'foo' =~ /(\w+)/;
is( $foo->bar($1), 'foo', 'autoloaded method should not stomp match vars' );
is( $foo->bar($1), 'foo', '(again)' );
is( $foo->bazmarkhianish($1), 'foo', 'for any method call' );
is( $foo->bazmarkhianish($1), 'foo', '(again)' );
# Used to retry long subnames with shorter filenames on any old
# exception, including compilation error. Now AutoLoader only
# tries shorter filenames if it can't find the long one.
eval {
$foo->blechanawilla;
};
like( $@, qr/syntax error/i, 'require error propagates' );
# test recursive autoloads
open(F, '>', File::Spec->catfile( $fulldir, 'a.al'))
or die "Cannot make 'a' file: $!";
print F <<'EOT';
package Foo;
BEGIN { b() }
sub a { ::ok( 1, 'adding a new autoloaded method' ); }
1;
EOT
close(F);
open(F, '>', File::Spec->catfile( $fulldir, 'b.al'))
or die "Cannot make 'b' file: $!";
print F <<'EOT';
package Foo;
sub b { ::ok( 1, 'adding a new autoloaded method' ) }
1;
EOT
close(F);
Foo::a();
package Bar;
AutoLoader->import();
::ok( ! defined &AUTOLOAD, 'AutoLoader should not export AUTOLOAD by default' );
::ok( ! defined &can, '... nor can()' );
package Foo;
AutoLoader->unimport();
eval { Foo->baz() };
::like( $@, qr/locate object method "baz"/,
'unimport() should remove imported AUTOLOAD()' );
package Baz;
sub AUTOLOAD { 'i am here' }
AutoLoader->import();
AutoLoader->unimport();
::is( Baz->AUTOLOAD(), 'i am here', '... but not non-imported AUTOLOAD()' );
package SomeClass;
use AutoLoader 'AUTOLOAD';
sub new {
bless {} => shift;
}
package main;
$INC{"SomeClass.pm"} = $0; # Prepare possible recursion
{
my $p = SomeClass->new();
} # <-- deep recursion in AUTOLOAD looking for SomeClass::DESTROY?
::ok(1, "AutoLoader shouldn't loop forever if \%INC is modified");
# cleanup
END {
return unless $dir && -d $dir;
rmtree $dir;
}
|
