[perl5.git] / lib / version.t

#! /usr/local/perl -w
# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl test.pl'

#########################

use Test::More qw(no_plan);
use Data::Dumper;
require Test::Harness;
no warnings 'once';
*Verbose = \$Test::Harness::Verbose;
use POSIX qw/locale_h/;
use File::Temp qw/tempfile/;
use File::Basename;

BEGIN {
    use_ok("version", 0.77);
    # If we made it this far, we are ok.
}

my $Verbose;

diag "Tests with base class" unless $ENV{PERL_CORE};

BaseTests("version","new","qv");
BaseTests("version","new","declare");
BaseTests("version","parse", "qv");
BaseTests("version","parse", "declare");

# dummy up a redundant call to satify David Wheeler
local $SIG{__WARN__} = sub { die $_[0] };
eval 'use version;';
unlike ($@, qr/^Subroutine main::declare redefined/,
    "Only export declare once per package (to prevent redefined warnings)."); 

package version::Bad;
use base 'version';
sub new { my($self,$n)=@_;  bless \$n, $self }

package main;

my $warning;
local $SIG{__WARN__} = sub { $warning = $_[0] };
my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
(my $package = basename($filename)) =~ s/\.pm$//;
print $fh <<"EOF";
# This is an empty subclass
package $package;
use base 'version';
use vars '\$VERSION';
\$VERSION=0.001;
EOF
close $fh;

sub main_reset {
    delete $main::INC{'$package'};
    undef &qv; undef *::qv; # avoid 'used once' warning
    undef &declare; undef *::declare; # avoid 'used once' warning
}

diag "Tests with empty derived class"  unless $ENV{PERL_CORE};

use_ok($package, 0.001);
my $testobj = $package->new(1.002_003);
isa_ok( $testobj, $package );
ok( $testobj->numify == 1.002003, "Numified correctly" );
ok( $testobj->stringify eq "1.002003", "Stringified correctly" );
ok( $testobj->normal eq "v1.2.3", "Normalified correctly" );

my $verobj = version::->new("1.2.4");
ok( $verobj > $testobj, "Comparison vs parent class" );

BaseTests($package, "new", "qv");
main_reset;
use_ok($package, 0.001, "declare");
BaseTests($package, "new", "declare");
main_reset;
use_ok($package, 0.001);
BaseTests($package, "parse", "qv");
main_reset;
use_ok($package, 0.001, "declare");
BaseTests($package, "parse", "declare");

diag "tests with bad subclass"  unless $ENV{PERL_CORE};
$testobj = version::Bad->new(1.002_003);
isa_ok( $testobj, "version::Bad" );
eval { my $string = $testobj->numify };
like($@, qr/Invalid version object/,
    "Bad subclass numify");
eval { my $string = $testobj->normal };
like($@, qr/Invalid version object/,
    "Bad subclass normal");
eval { my $string = $testobj->stringify };
like($@, qr/Invalid version object/,
    "Bad subclass stringify");
eval { my $test = ($testobj > 1.0) };
like($@, qr/Invalid version object/,
    "Bad subclass vcmp");

sub BaseTests {

    my ($CLASS, $method, $qv_declare) = @_;
    my $warning;
    local $SIG{__WARN__} = sub { $warning = $_[0] };
    
    # Insert your test code below, the Test module is use()ed here so read
    # its man page ( perldoc Test ) for help writing this test script.
    
    # Test bare number processing
    diag "tests with bare numbers" unless $ENV{PERL_CORE};
    $version = $CLASS->$method(5.005_03);
    is ( "$version" , "5.00503" , '5.005_03 eq 5.00503' );
    $version = $CLASS->$method(1.23);
    is ( "$version" , "1.23" , '1.23 eq "1.23"' );
    
    # Test quoted number processing
    diag "tests with quoted numbers" unless $ENV{PERL_CORE};
    $version = $CLASS->$method("5.005_03");
    is ( "$version" , "5.005_03" , '"5.005_03" eq "5.005_03"' );
    $version = $CLASS->$method("v1.23");
    is ( "$version" , "v1.23" , '"v1.23" eq "v1.23"' );
    
    # Test stringify operator
    diag "tests with stringify" unless $ENV{PERL_CORE};
    $version = $CLASS->$method("5.005");
    is ( "$version" , "5.005" , '5.005 eq "5.005"' );
    $version = $CLASS->$method("5.006.001");
    is ( "$version" , "5.006.001" , '5.006.001 eq v5.6.1' );
    unlike ($warning, qr/v-string without leading 'v' deprecated/, 'No leading v');
    $version = $CLASS->$method("v1.2.3_4");
    is ( "$version" , "v1.2.3_4" , 'alpha version 1.2.3_4 eq v1.2.3_4' );
    
    # test illegal formats
    diag "test illegal formats" unless $ENV{PERL_CORE};
    eval {$version = $CLASS->$method("1.2_3_4")};
    like($@, qr/multiple underscores/,
	"Invalid version format (multiple underscores)");
    
    eval {$version = $CLASS->$method("1.2_3.4")};
    like($@, qr/underscores before decimal/,
	"Invalid version format (underscores before decimal)");
    
    eval {$version = $CLASS->$method("1_2")};
    like($@, qr/alpha without decimal/,
	"Invalid version format (alpha without decimal)");
    
    eval { $version = $CLASS->$method("1.2b3")};
    like($@, qr/non-numeric data/,
	"Invalid version format (non-numeric data)");

    # from here on out capture the warning and test independently
    {
    eval{$version = $CLASS->$method("99 and 44/100 pure")};

    like($@, qr/non-numeric data/,
	"Invalid version format (non-numeric data)");
    
    eval{$version = $CLASS->$method("something")};
    like($@, qr/non-numeric data/,
	"Invalid version format (non-numeric data)");
    
    # reset the test object to something reasonable
    $version = $CLASS->$method("1.2.3");
    
    # Test boolean operator
    ok ($version, 'boolean');
    
    # Test class membership
    isa_ok ( $version, $CLASS );
    
    # Test comparison operators with self
    diag "tests with self" unless $ENV{PERL_CORE};
    is ( $version <=> $version, 0, '$version <=> $version == 0' );
    ok ( $version == $version, '$version == $version' );
    
    # Test Numeric Comparison operators
    # test first with non-object
    $version = $CLASS->$method("5.006.001");
    $new_version = "5.8.0";
    diag "numeric tests with non-objects" unless $ENV{PERL_CORE};
    ok ( $version == $version, '$version == $version' );
    ok ( $version < $new_version, '$version < $new_version' );
    ok ( $new_version > $version, '$new_version > $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    
    # now test with existing object
    $new_version = $CLASS->$method($new_version);
    diag "numeric tests with objects" unless $ENV{PERL_CORE};
    ok ( $version < $new_version, '$version < $new_version' );
    ok ( $new_version > $version, '$new_version > $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    
    # now test with actual numbers
    diag "numeric tests with numbers" unless $ENV{PERL_CORE};
    ok ( $version->numify() == 5.006001, '$version->numify() == 5.006001' );
    ok ( $version->numify() <= 5.006001, '$version->numify() <= 5.006001' );
    ok ( $version->numify() < 5.008, '$version->numify() < 5.008' );
    #ok ( $version->numify() > v5.005_02, '$version->numify() > 5.005_02' );
    
    # test with long decimals
    diag "Tests with extended decimal versions" unless $ENV{PERL_CORE};
    $version = $CLASS->$method(1.002003);
    ok ( $version == "1.2.3", '$version == "1.2.3"');
    ok ( $version->numify == 1.002003, '$version->numify == 1.002003');
    $version = $CLASS->$method("2002.09.30.1");
    ok ( $version == "2002.9.30.1",'$version == 2002.9.30.1');
    ok ( $version->numify == 2002.009030001,
	'$version->numify == 2002.009030001');
    
    # now test with alpha version form with string
    $version = $CLASS->$method("1.2.3");
    $new_version = "1.2.3_4";
    diag "numeric tests with alpha-style non-objects" unless $ENV{PERL_CORE};
    ok ( $version < $new_version, '$version < $new_version' );
    ok ( $new_version > $version, '$new_version > $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    
    $version = $CLASS->$method("1.2.4");
    diag "numeric tests with alpha-style non-objects"
	unless $ENV{PERL_CORE};
    ok ( $version > $new_version, '$version > $new_version' );
    ok ( $new_version < $version, '$new_version < $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    
    # now test with alpha version form with object
    $version = $CLASS->$method("1.2.3");
    $new_version = $CLASS->$method("1.2.3_4");
    diag "tests with alpha-style objects" unless $ENV{PERL_CORE};
    ok ( $version < $new_version, '$version < $new_version' );
    ok ( $new_version > $version, '$new_version > $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    ok ( !$version->is_alpha, '!$version->is_alpha');
    ok ( $new_version->is_alpha, '$new_version->is_alpha');
    
    $version = $CLASS->$method("1.2.4");
    diag "tests with alpha-style objects" unless $ENV{PERL_CORE};
    ok ( $version > $new_version, '$version > $new_version' );
    ok ( $new_version < $version, '$new_version < $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    
    $version = $CLASS->$method("1.2.3.4");
    $new_version = $CLASS->$method("1.2.3_4");
    diag "tests with alpha-style objects with same subversion"
	unless $ENV{PERL_CORE};
    ok ( $version > $new_version, '$version > $new_version' );
    ok ( $new_version < $version, '$new_version < $version' );
    ok ( $version != $new_version, '$version != $new_version' );
    
    diag "test implicit [in]equality" unless $ENV{PERL_CORE};
    $version = $CLASS->$method("v1.2.3");
    $new_version = $CLASS->$method("1.2.3.0");
    ok ( $version == $new_version, '$version == $new_version' );
    $new_version = $CLASS->$method("1.2.3_0");
    ok ( $version == $new_version, '$version == $new_version' );
    $new_version = $CLASS->$method("1.2.3.1");
    ok ( $version < $new_version, '$version < $new_version' );
    $new_version = $CLASS->$method("1.2.3_1");
    ok ( $version < $new_version, '$version < $new_version' );
    $new_version = $CLASS->$method("1.1.999");
    ok ( $version > $new_version, '$version > $new_version' );
    
    # that which is not expressly permitted is forbidden
    diag "forbidden operations" unless $ENV{PERL_CORE};
    ok ( !eval { ++$version }, "noop ++" );
    ok ( !eval { --$version }, "noop --" );
    ok ( !eval { $version/1 }, "noop /" );
    ok ( !eval { $version*3 }, "noop *" );
    ok ( !eval { abs($version) }, "noop abs" );

SKIP: {
    skip "version require'd instead of use'd, cannot test $qv_declare", 3
    	unless defined $qv_declare;
    # test the $qv_declare() sub
    diag "testing $qv_declare" unless $ENV{PERL_CORE};
    $version = $CLASS->$qv_declare("1.2");
    is ( "$version", "v1.2", $qv_declare.'("1.2") == "1.2.0"' );
    $version = $CLASS->$qv_declare(1.2);
    is ( "$version", "v1.2", $qv_declare.'(1.2) == "1.2.0"' );
    isa_ok( $CLASS->$qv_declare('5.008'), $CLASS );
}

    # test creation from existing version object
    diag "create new from existing version" unless $ENV{PERL_CORE};
    ok (eval {$new_version = $CLASS->$method($version)},
	    "new from existing object");
    ok ($new_version == $version, "class->$method($version) identical");
    $new_version = $version->$method();
    isa_ok ($new_version, $CLASS );
    is ($new_version, "0", "version->$method() doesn't clone");
    $new_version = $version->$method("1.2.3");
    is ($new_version, "1.2.3" , '$version->$method("1.2.3") works too');

    # test the CVS revision mode
    diag "testing CVS Revision" unless $ENV{PERL_CORE};
    $version = new $CLASS qw$Revision: 1.2$;
    ok ( $version == "1.2.0", 'qw$Revision: 1.2$ == 1.2.0' );
    $version = new $CLASS qw$Revision: 1.2.3.4$;
    ok ( $version == "1.2.3.4", 'qw$Revision: 1.2.3.4$ == 1.2.3.4' );
    
    # test the CPAN style reduced significant digit form
    diag "testing CPAN-style versions" unless $ENV{PERL_CORE};
    $version = $CLASS->$method("1.23_01");
    is ( "$version" , "1.23_01", "CPAN-style alpha version" );
    ok ( $version > 1.23, "1.23_01 > 1.23");
    ok ( $version < 1.24, "1.23_01 < 1.24");

    # test reformed UNIVERSAL::VERSION
    diag "Replacement UNIVERSAL::VERSION tests" unless $ENV{PERL_CORE};

    my $error_regex = $] < 5.006
	? 'version \d required'
	: 'does not define \$t.{7}::VERSION';
    
    {
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh "package $package;\n\$$package\::VERSION=0.58;\n1;\n";
	close $fh;

	$version = 0.58;
	eval "use lib '.'; use $package $version";
	unlike($@, qr/$package version $version/,
		'Replacement eval works with exact version');
	
	# test as class method
	$new_version = $package->VERSION;
	cmp_ok($new_version,'==',$version, "Called as class method");

	eval "print Completely::Unknown::Module->VERSION";
	if ( $] < 5.008 ) {
	    unlike($@, qr/$error_regex/,
		"Don't freak if the module doesn't even exist");
	}
	else {
	    unlike($@, qr/defines neither package nor VERSION/,
		"Don't freak if the module doesn't even exist");
	}

	# this should fail even with old UNIVERSAL::VERSION
	$version += 0.01;
	eval "use lib '.'; use $package $version";
	like($@, qr/$package version $version/,
		'Replacement eval works with incremented version');
	
	$version =~ s/0+$//; #convert to string and remove trailing 0's
	chop($version);	# shorten by 1 digit, should still succeed
	eval "use lib '.'; use $package $version";
	unlike($@, qr/$package version $version/,
		'Replacement eval works with single digit');
	
	# this would fail with old UNIVERSAL::VERSION
	$version += 0.1;
	eval "use lib '.'; use $package $version";
	like($@, qr/$package version $version/,
		'Replacement eval works with incremented digit');
	unlink $filename;
    }

    { # dummy up some variously broken modules for testing
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh "1;\n";
	close $fh;

	eval "use lib '.'; use $package 3;";
	if ( $] < 5.008 ) {
	    like($@, qr/$error_regex/,
		'Replacement handles modules without package or VERSION'); 
	}
	else {
	    like($@, qr/defines neither package nor VERSION/,
		'Replacement handles modules without package or VERSION'); 
	}
	eval "use lib '.'; use $package; \$version = $package->VERSION";
	unlike ($@, qr/$error_regex/,
	    'Replacement handles modules without package or VERSION'); 
	ok (!defined($version), "Called as class method");
	unlink $filename;
    }
    
    { # dummy up some variously broken modules for testing
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh "package $package;\n#look ma no VERSION\n1;\n";
	close $fh;
	eval "use lib '.'; use $package 3;";
	like ($@, qr/$error_regex/,
	    'Replacement handles modules without VERSION'); 
	eval "use lib '.'; use $package; print $package->VERSION";
	unlike ($@, qr/$error_regex/,
	    'Replacement handles modules without VERSION'); 
	unlink $filename;
    }

    { # dummy up some variously broken modules for testing
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh "package $package;\n\@VERSION = ();\n1;\n";
	close $fh;
	eval "use lib '.'; use $package 3;";
	like ($@, qr/$error_regex/,
	    'Replacement handles modules without VERSION'); 
	eval "use lib '.'; use $package; print $package->VERSION";
	unlike ($@, qr/$error_regex/,
	    'Replacement handles modules without VERSION'); 
	unlink $filename;
    }

SKIP: 	{
	skip 'Cannot test bare v-strings with Perl < 5.6.0', 4
		if $] < 5.006_000; 
	diag "Tests with v-strings" unless $ENV{PERL_CORE};
	$version = $CLASS->$method(1.2.3);
	ok("$version" == "v1.2.3", '"$version" == 1.2.3');
	$version = $CLASS->$method(1.0.0);
	$new_version = $CLASS->$method(1);
	ok($version == $new_version, '$version == $new_version');
	skip "version require'd instead of use'd, cannot test declare", 1
	    unless defined $qv_declare;
	$version = &$qv_declare(1.2.3);
	ok("$version" == "v1.2.3", 'v-string initialized $qv_declare()');
    }

    diag "Tests with real-world (malformed) data" unless $ENV{PERL_CORE};

    # trailing zero testing (reported by Andreas Koenig).
    $version = $CLASS->$method("1");
    ok($version->numify eq "1.000", "trailing zeros preserved");
    $version = $CLASS->$method("1.0");
    ok($version->numify eq "1.000", "trailing zeros preserved");
    $version = $CLASS->$method("1.0.0");
    ok($version->numify eq "1.000000", "trailing zeros preserved");
    $version = $CLASS->$method("1.0.0.0");
    ok($version->numify eq "1.000000000", "trailing zeros preserved");
    
    # leading zero testing (reported by Andreas Koenig).
    $version = $CLASS->$method(".7");
    ok($version->numify eq "0.700", "leading zero inferred");

    # leading space testing (reported by Andreas Koenig).
    $version = $CLASS->$method(" 1.7");
    ok($version->numify eq "1.700", "leading space ignored");

    # RT 19517 - deal with undef and 'undef' initialization
    ok("$version" ne 'undef', "Undef version comparison #1");
    ok("$version" ne undef, "Undef version comparison #2");
    $version = $CLASS->$method('undef');
    unlike($warning, qr/^Version string 'undef' contains invalid data/,
	"Version string 'undef'");

    $version = $CLASS->$method(undef);
    like($warning, qr/^Use of uninitialized value/,
	"Version string 'undef'");
    ok($version == 'undef', "Undef version comparison #3");
    ok($version ==  undef,  "Undef version comparison #4");
    eval "\$version = \$CLASS->$method()"; # no parameter at all
    unlike($@, qr/^Bizarre copy of CODE/, "No initializer at all");
    ok($version == 'undef', "Undef version comparison #5");
    ok($version ==  undef,  "Undef version comparison #6");

    $version = $CLASS->$method(0.000001);
    unlike($warning, qr/^Version string '1e-06' contains invalid data/,
    	"Very small version objects");
    }

SKIP: {
	my $warning;
	local $SIG{__WARN__} = sub { $warning = $_[0] };
	# dummy up a legal module for testing RT#19017
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh <<"EOF";
package $package;
use $CLASS; \$VERSION = ${CLASS}->new('0.0.4');
1;
EOF
	close $fh;

	eval "use lib '.'; use $package 0.000008;";
	like ($@, qr/^$package version 0.000008 required/,
	    "Make sure very small versions don't freak"); 
	eval "use lib '.'; use $package 1;";
	like ($@, qr/^$package version 1 required/,
	    "Comparing vs. version with no decimal"); 
	eval "use lib '.'; use $package 1.;";
	like ($@, qr/^$package version 1 required/,
	    "Comparing vs. version with decimal only"); 
	if ( $] < 5.006_000 ) {
	    skip 'Cannot "use" extended versions with Perl < 5.6.0', 3; 
	}
	eval "use lib '.'; use $package v0.0.8;";
	my $regex = "^$package version v0.0.8 required";
	like ($@, qr/$regex/, "Make sure very small versions don't freak"); 

	$regex =~ s/8/4/; # set for second test
	eval "use lib '.'; use $package v0.0.4;";
	unlike($@, qr/$regex/, 'Succeed - required == VERSION');
	cmp_ok ( $package->VERSION, 'eq', '0.0.4', 'No undef warnings' );
	unlink $filename;
    }

SKIP: {
    skip 'Cannot test "use base qw(version)"  when require is used', 3
    	unless defined $qv_declare;
    my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
    (my $package = basename($filename)) =~ s/\.pm$//;
    print $fh <<"EOF";
package $package;
use base qw(version);
1;
EOF
    close $fh;
    # need to eliminate any other $qv_declare()'s
    undef *{"main\::$qv_declare"};
    ok(!defined(&{"main\::$qv_declare"}), "make sure we cleared $qv_declare() properly");
    eval "use lib '.'; use $package qw/declare qv/;";
    ok(defined(&{"main\::$qv_declare"}), "make sure we exported $qv_declare() properly");
    isa_ok( &$qv_declare(1.2), $package);
    unlink $filename;
}

SKIP: {
	if ( $] < 5.006_000 ) {
	    skip 'Cannot "use" extended versions with Perl < 5.6.0', 3; 
	}
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh <<"EOF";
package $package;
\$VERSION = 1.0;
1;
EOF
	close $fh;
	eval "use lib '.'; use $package 1.001;";
	like ($@, qr/^$package version 1.001 required/,
	    "User typed numeric so we error with numeric"); 
	eval "use lib '.'; use $package v1.1.0;";
	like ($@, qr/^$package version v1.1.0 required/,
	    "User typed extended so we error with extended"); 
	unlink $filename;
    }

SKIP: {
	# test locale handling
	my $warning;
	local $SIG{__WARN__} = sub { $warning = $_[0] };

$DB::single = 1;
	my $v = eval { $CLASS->$method('1,7') };
#	is( $@, "", 'Directly test comma as decimal compliance');

	my $ver = 1.23;  # has to be floating point number
	my $orig_loc = setlocale( LC_ALL );
	my $loc;
	while (<DATA>) {
	    chomp;
	    $loc = setlocale( LC_ALL, $_);
	    last if localeconv()->{decimal_point} eq ',';
	}
	skip 'Cannot test locale handling without a comma locale', 4
	    unless ( $loc and ($ver eq '1,23') );

	diag ("Testing locale handling with $loc") unless $ENV{PERL_CORE};

	$v = $CLASS->$method($ver);
	unlike($warning, qr/Version string '1,23' contains invalid data/,
	    "Process locale-dependent floating point");
	is ($v, "1.23", "Locale doesn't apply to version objects");
	ok ($v == $ver, "Comparison to locale floating point");

	setlocale( LC_ALL, $orig_loc); # reset this before possible skip
	skip 'Cannot test RT#46921 with Perl < 5.008', 1
	    if ($] < 5.008);
	skip 'Cannot test RT#46921 with pure Perl module', 1
	    if exists $INC{'version/vpp.pm'};
	my ($fh, $filename) = tempfile('tXXXXXXX', SUFFIX => '.pm', UNLINK => 1);
	(my $package = basename($filename)) =~ s/\.pm$//;
	print $fh <<"EOF";
package $package;
use POSIX qw(locale_h);
\$^W = 1;
use $CLASS;
setlocale (LC_ALL, '$loc');
use $CLASS ;
eval "use Socket 1.7";
setlocale( LC_ALL, '$orig_loc');
1;
EOF
	close $fh;

	eval "use lib '.'; use $package;";
	unlike($warning, qr"Version string '1,7' contains invalid data",
	    'Handle locale action-at-a-distance');
    }

    eval 'my $v = $CLASS->$method("1._1");';
    unlike($@, qr/^Invalid version format \(alpha with zero width\)/,
    	"Invalid version format 1._1");

    {
	my $warning;
	local $SIG{__WARN__} = sub { $warning = $_[0] };
	eval 'my $v = $CLASS->$method(~0);';
	unlike($@, qr/Integer overflow in version/, "Too large version");
	like($warning, qr/Integer overflow in version/, "Too large version");
    }

    {
	# http://rt.cpan.org/Public/Bug/Display.html?id=30004
	my $v1 = $CLASS->$method("v0.1_1");
	(my $alpha1 = Dumper($v1)) =~ s/.+'alpha' => ([^,]+),.+/$1/ms;
	my $v2 = $CLASS->$method($v1);
	(my $alpha2 = Dumper($v2)) =~ s/.+'alpha' => ([^,]+),.+/$1/ms;
	is $alpha2, $alpha1, "Don't fall for Data::Dumper's tricks";
    }

    {
	# http://rt.perl.org/rt3/Ticket/Display.html?id=56606
	my $badv = bless { version => [1,2,3] }, "version";
	is $badv, '1.002003', "Deal with badly serialized versions from YAML";	
	my $badv2 = bless { qv => 1, version => [1,2,3] }, "version";
	is $badv2, 'v1.2.3', "Deal with badly serialized versions from YAML ";	
    }
}

1;

__DATA__
af_ZA
af_ZA.utf8
an_ES
an_ES.utf8
az_AZ.utf8
be_BY
be_BY.utf8
bg_BG
bg_BG.utf8
br_FR
br_FR@euro
br_FR.utf8
bs_BA
bs_BA.utf8
ca_ES
ca_ES@euro
ca_ES.utf8
cs_CZ
cs_CZ.utf8
da_DK
da_DK.utf8
de_AT
de_AT@euro
de_AT.utf8
de_BE
de_BE@euro
de_BE.utf8
de_DE
de_DE@euro
de_DE.utf8
de_LU
de_LU@euro
de_LU.utf8
el_GR
el_GR.utf8
en_DK
en_DK.utf8
es_AR
es_AR.utf8
es_BO
es_BO.utf8
es_CL
es_CL.utf8
es_CO
es_CO.utf8
es_EC
es_EC.utf8
es_ES
es_ES@euro
es_ES.utf8
es_PY
es_PY.utf8
es_UY
es_UY.utf8
es_VE
es_VE.utf8
et_EE
et_EE.iso885915
et_EE.utf8
eu_ES
eu_ES@euro
eu_ES.utf8
fi_FI
fi_FI@euro
fi_FI.utf8
fo_FO
fo_FO.utf8
fr_BE
fr_BE@euro
fr_BE.utf8
fr_CA
fr_CA.utf8
fr_CH
fr_CH.utf8
fr_FR
fr_FR@euro
fr_FR.utf8
fr_LU
fr_LU@euro
fr_LU.utf8
gl_ES
gl_ES@euro
gl_ES.utf8
hr_HR
hr_HR.utf8
hu_HU
hu_HU.utf8
id_ID
id_ID.utf8
is_IS
is_IS.utf8
it_CH
it_CH.utf8
it_IT
it_IT@euro
it_IT.utf8
ka_GE
ka_GE.utf8
kk_KZ
kk_KZ.utf8
kl_GL
kl_GL.utf8
lt_LT
lt_LT.utf8
lv_LV
lv_LV.utf8
mk_MK
mk_MK.utf8
mn_MN
mn_MN.utf8
nb_NO
nb_NO.utf8
nl_BE
nl_BE@euro
nl_BE.utf8
nl_NL
nl_NL@euro
nl_NL.utf8
nn_NO
nn_NO.utf8
no_NO
no_NO.utf8
oc_FR
oc_FR.utf8
pl_PL
pl_PL.utf8
pt_BR
pt_BR.utf8
pt_PT
pt_PT@euro
pt_PT.utf8
ro_RO
ro_RO.utf8
ru_RU
ru_RU.koi8r
ru_RU.utf8
ru_UA
ru_UA.utf8
se_NO
se_NO.utf8
sh_YU
sh_YU.utf8
sk_SK
sk_SK.utf8
sl_SI
sl_SI.utf8
sq_AL
sq_AL.utf8
sr_CS
sr_CS.utf8
sv_FI
sv_FI@euro
sv_FI.utf8
sv_SE
sv_SE.iso885915
sv_SE.utf8
tg_TJ
tg_TJ.utf8
tr_TR
tr_TR.utf8
tt_RU.utf8
uk_UA
uk_UA.utf8
vi_VN
vi_VN.tcvn
wa_BE
wa_BE@euro
wa_BE.utf8