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#!./perl
BEGIN {
require Config;
if ($Config::Config{'extensions'} !~ m!\bList/Util\b!){
print "1..0 # Skip -- Perl configured without List::Util module\n";
exit 0;
}
}
use Test::More tests => 15;
BEGIN {
require autouse;
eval {
"autouse"->import('Scalar::Util' => 'Scalar::Util::set_prototype(&$)');
};
ok( !$@ );
eval {
"autouse"->import('Scalar::Util' => 'Foo::min');
};
ok( $@, qr/^autouse into different package attempted/ );
"autouse"->import('Scalar::Util' => qw(isdual set_prototype(&$)));
}
ok( isdual($!) );
# set_prototype() has a prototype of &$. Make sure that's preserved.
sub sum { return $_[0] + $_[1] };
is( (set_prototype \&sum, '$$'), \&sum);
# Example from the docs.
use autouse 'Carp' => qw(carp croak);
{
my @warning;
local $SIG{__WARN__} = sub { push @warning, @_ };
carp "this carp was predeclared and autoused\n";
is( scalar @warning, 1 );
like( $warning[0], qr/^this carp was predeclared and autoused\n/ );
eval { croak "It is but a scratch!" };
like( $@, qr/^It is but a scratch!/);
}
# Test that autouse's lazy module loading works.
use autouse 'Errno' => qw(EPERM);
my $mod_file = 'Errno.pm'; # just fine and portable for %INC
ok( !exists $INC{$mod_file} );
ok( EPERM ); # test if non-zero
ok( exists $INC{$mod_file} );
use autouse Env => "something";
eval { something() };
like( $@, qr/^\Qautoused module Env has unique import() method/ );
# Check that UNIVERSAL.pm doesn't interfere with modules that don't use
# Exporter and have no import() of their own.
require UNIVERSAL;
require File::Spec;
unshift @INC, File::Spec->catdir('t', 'lib'), 'lib';
autouse->import("MyTestModule" => 'test_function');
my $ret = test_function();
is( $ret, 'works' );
# Test that autouse is exempt from all methods of triggering the subroutine
# redefinition warning.
SKIP: {
skip "Fails in 5.15.5 and below (perl bug)", 2 if $] < 5.0150051;
use warnings; local $^W = 1; no warnings 'once';
my $w;
local $SIG{__WARN__} = sub { $w .= shift };
use autouse MyTestModule2 => 'test_function2';
*MyTestModule2::test_function2 = \&test_function2;
require MyTestModule2;
is $w, undef,
'no redefinition warning when clobbering autouse stub with new sub';
undef $w;
import MyTestModule2 'test_function2';
is $w, undef,
'no redefinition warning when clobbering autouse stub via *a=\&b';
}
SKIP: {
skip "Fails from 5.10 to 5.15.5 (perl bug)", 1
if $] < 5.0150051 and $] > 5.0099;
use Config;
skip "no B", 1 unless $Config{extensions} =~ /\bB\b/;
use warnings; local $^W = 1; no warnings 'once';
my $w;
local $SIG{__WARN__} = sub { $w .= shift };
use autouse B => "sv_undef";
*B::sv_undef = \&sv_undef;
require B;
is $w, undef,
'no redefinition warning when clobbering autouse stub with new XSUB';
}
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