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|
#!./perl -w
my $w;
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
$SIG{__WARN__} = sub {
if ($_[0] =~ /^Hides field 'b1' in base class/) {
$w++;
return;
}
print STDERR $_[0];
};
}
use strict;
use warnings;
use vars qw($DEBUG);
use Test::More;
package B1;
use fields qw(b1 b2 b3);
package B2;
use fields '_b1';
use fields qw(b1 _b2 b2);
sub new { fields::new(shift); }
package D1;
use base 'B1';
use fields qw(d1 d2 d3);
package D2;
use base 'B1';
use fields qw(_d1 _d2);
use fields qw(d1 d2);
package D3;
use base 'B2';
use fields qw(b1 d1 _b1 _d1); # hide b1
package D4;
use base 'D3';
use fields qw(_d3 d3);
package M;
sub m {}
package D5;
use base qw(M B2);
package Foo::Bar;
use base 'B1';
package Foo::Bar::Baz;
use base 'Foo::Bar';
use fields qw(foo bar baz);
# Test repeatability for when modules get reloaded.
package B1;
use fields qw(b1 b2 b3);
package D3;
use base 'B2';
use fields qw(b1 d1 _b1 _d1); # hide b1
package main;
sub fstr {
my $h = shift;
my @tmp;
for my $k (sort {$h->{$a} <=> $h->{$b}} keys %$h) {
my $v = $h->{$k};
push(@tmp, "$k:$v");
}
my $str = join(",", @tmp);
print "$h => $str\n" if $DEBUG;
$str;
}
my %expect = (
B1 => "b1:1,b2:2,b3:3",
B2 => "_b1:1,b1:2,_b2:3,b2:4",
D1 => "b1:1,b2:2,b3:3,d1:4,d2:5,d3:6",
D2 => "b1:1,b2:2,b3:3,_d1:4,_d2:5,d1:6,d2:7",
D3 => "b2:4,b1:5,d1:6,_b1:7,_d1:8",
D4 => "b2:4,b1:5,d1:6,_d3:9,d3:10",
D5 => "b1:2,b2:4",
'Foo::Bar::Baz' => 'b1:1,b2:2,b3:3,foo:4,bar:5,baz:6',
);
plan tests => keys(%expect) + 21;
my $testno = 0;
while (my($class, $exp) = each %expect) {
no strict 'refs';
my $fstr = fstr(\%{$class."::FIELDS"});
is( $fstr, $exp, "\%FIELDS check for $class" );
}
# Did we get the appropriate amount of warnings?
is( $w, 1 );
# A simple object creation and AVHV attribute access test
my B2 $obj1 = D3->new;
$obj1->{b1} = "B2";
my D3 $obj2 = $obj1;
$obj2->{b1} = "D3";
# We should get compile time failures field name typos
eval q(my D3 $obj3 = $obj2; $obj3->{notthere} = "");
like $@, qr/^Attempt to access disallowed key 'notthere' in a restricted hash/;
# Slices
@$obj1{"_b1", "b1"} = (17, 29);
is_deeply($obj1, { b1 => 29, _b1 => 17 });
@$obj1{'_b1', 'b1'} = (44,28);
is_deeply($obj1, { b1 => 28, _b1 => 44 });
eval { fields::phash };
like $@, qr/^Pseudo-hashes have been removed from Perl/;
#fields::_dump();
# check if fields autovivify
{
package Foo;
use fields qw(foo bar);
sub new { fields::new($_[0]) }
package main;
my Foo $a = Foo->new();
$a->{foo} = ['a', 'ok', 'c'];
$a->{bar} = { A => 'ok' };
is( $a->{foo}[1], 'ok' );
is( $a->{bar}->{A},, 'ok' );
}
# check if fields autovivify
{
package Bar;
use fields qw(foo bar);
sub new { return fields::new($_[0]) }
package main;
my Bar $a = Bar::->new();
$a->{foo} = ['a', 'ok', 'c'];
$a->{bar} = { A => 'ok' };
is( $a->{foo}[1], 'ok' );
is( $a->{bar}->{A}, 'ok' );
}
# Test $VERSION bug
package No::Version;
use vars qw($Foo);
sub VERSION { 42 }
package Test::Version;
use base qw(No::Version);
::like( $No::Version::VERSION, qr/set by base.pm/ );
# Test Inverse of $VERSION bug base.pm should not clobber existing $VERSION
package Has::Version;
BEGIN { $Has::Version::VERSION = '42' };
package Test::Version2;
use base qw(Has::Version);
::is( $Has::Version::VERSION, 42 );
package main;
our $eval1 = q{
{
package Eval1;
{
package Eval2;
use base 'Eval1';
$Eval2::VERSION = "1.02";
}
$Eval1::VERSION = "1.01";
}
};
eval $eval1;
is( $@, '' );
is( $Eval1::VERSION, 1.01 );
is( $Eval2::VERSION, 1.02 );
eval q{use base 'reallyReAlLyNotexists'};
like( $@, qr/^Base class package "reallyReAlLyNotexists" is empty./,
'base with empty package');
eval q{use base 'reallyReAlLyNotexists'};
like( $@, qr/^Base class package "reallyReAlLyNotexists" is empty./,
' still empty on 2nd load');
BEGIN { $Has::Version_0::VERSION = 0 }
package Test::Version3;
use base qw(Has::Version_0);
::is( $Has::Version_0::VERSION, 0, '$VERSION==0 preserved' );
package Test::FooBar;
use fields qw(a b c);
sub new {
my $self = fields::new(shift);
%$self = @_ if @_;
$self;
}
package main;
{
my $x = Test::FooBar->new( a => 1, b => 2);
is(ref $x, 'Test::FooBar', 'x is a Test::FooBar');
ok(exists $x->{a}, 'x has a');
ok(exists $x->{b}, 'x has b');
is(scalar keys %$x, 2, 'x has two fields');
}
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