perl-5.16.2/cpan/Package-Constants/t/01_list.t

use strict;
use Test::More 'no_plan';

BEGIN { chdir 't' if -d 't' };
use lib '../lib';

my $Class   = 'Package::Constants';
my $Func    = 'list';
my $Pkg     = '_test';
my @Good    = 'A'..'C';
my @Bad     = 'D'..'E';

use_ok( $Class );
can_ok( $Class, $Func );

### enable debug statements?
$Package::Constants::DEBUG = $Package::Constants::DEBUG = @ARGV ? 1 : 0;


### small test class 
{   package _test;

    ### mark us as loaded
    $INC{'_test.pm'} = $0;
    
    use vars qw[$FOO];
    $FOO = 1;
    
    ### define various subs.. the first 3 are constants, 
    ### the others are not
    use constant A => 1;
    use constant B => sub { 1 };
    sub C ()        { 1 };
    
    sub D           { 1 };
    sub E (*)       { 1 };

}    

### get the list
{   my @list = $Class->$Func( $Pkg );
    ok( scalar(@list),          "Got a list of constants" );
    is_deeply( \@list, \@Good,  "   Contains all expected entries" );
}    


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