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#!./perl -w
#
# test a few problems with the Freezer option, not a complete Freezer
# test suite yet
BEGIN {
require Config; import Config;
no warnings 'once';
if ($Config{'extensions'} !~ /\bData\/Dumper\b/) {
print "1..0 # Skip: Data::Dumper was not built\n";
exit 0;
}
}
use strict;
use Test::More qw(no_plan);
use Data::Dumper;
$Data::Dumper::Freezer = 'freeze';
# test for seg-fault bug when freeze() returns a non-ref
my $foo = Test1->new("foo");
my $dumped_foo = Dumper($foo);
ok($dumped_foo,
"Use of freezer sub which returns non-ref worked.");
like($dumped_foo, qr/frozed/,
"Dumped string has the key added by Freezer.");
# run the same tests with useperl. this always worked
{
local $Data::Dumper::Useperl = 1;
my $foo = Test1->new("foo");
my $dumped_foo = Dumper($foo);
ok($dumped_foo,
"Use of freezer sub which returns non-ref worked with useperl");
like($dumped_foo, qr/frozed/,
"Dumped string has the key added by Freezer with useperl.");
}
# test for warning when an object doesn't have a freeze()
{
my $warned = 0;
local $SIG{__WARN__} = sub { $warned++ };
my $bar = Test2->new("bar");
my $dumped_bar = Dumper($bar);
is($warned, 0, "A missing freeze() shouldn't warn.");
}
# run the same test with useperl, which always worked
{
local $Data::Dumper::Useperl = 1;
my $warned = 0;
local $SIG{__WARN__} = sub { $warned++ };
my $bar = Test2->new("bar");
my $dumped_bar = Dumper($bar);
is($warned, 0, "A missing freeze() shouldn't warn with useperl");
}
# a freeze() which die()s should still trigger the warning
{
my $warned = 0;
local $SIG{__WARN__} = sub { $warned++; };
my $bar = Test3->new("bar");
my $dumped_bar = Dumper($bar);
is($warned, 1, "A freeze() which die()s should warn.");
}
# the same should work in useperl
{
local $Data::Dumper::Useperl = 1;
my $warned = 0;
local $SIG{__WARN__} = sub { $warned++; };
my $bar = Test3->new("bar");
my $dumped_bar = Dumper($bar);
is($warned, 1, "A freeze() which die()s should warn with useperl.");
}
# a package with a freeze() which returns a non-ref
package Test1;
sub new { bless({name => $_[1]}, $_[0]) }
sub freeze {
my $self = shift;
$self->{frozed} = 1;
}
# a package without a freeze()
package Test2;
sub new { bless({name => $_[1]}, $_[0]) }
# a package with a freeze() which dies
package Test3;
sub new { bless({name => $_[1]}, $_[0]) }
sub freeze { die "freeze() is broked" }
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