r38994 - in /branches/upstream/libtest-refcount-perl/current: Build.PL Changes LICENSE MANIFEST META.yml Makefile.PL README lib/Test/Refcount.pm t/99pod.t
jawnsy-guest at users.alioth.debian.org
jawnsy-guest at users.alioth.debian.org
Tue Jun 30 14:19:13 UTC 2009
Author: jawnsy-guest
Date: Tue Jun 30 14:19:07 2009
New Revision: 38994
URL: http://svn.debian.org/wsvn/pkg-perl/?sc=1&rev=38994
Log:
[svn-upgrade] Integrating new upstream version, libtest-refcount-perl (0.05)
Added:
branches/upstream/libtest-refcount-perl/current/Changes
branches/upstream/libtest-refcount-perl/current/LICENSE
branches/upstream/libtest-refcount-perl/current/README
branches/upstream/libtest-refcount-perl/current/t/99pod.t
Modified:
branches/upstream/libtest-refcount-perl/current/Build.PL
branches/upstream/libtest-refcount-perl/current/MANIFEST
branches/upstream/libtest-refcount-perl/current/META.yml
branches/upstream/libtest-refcount-perl/current/Makefile.PL
branches/upstream/libtest-refcount-perl/current/lib/Test/Refcount.pm
Modified: branches/upstream/libtest-refcount-perl/current/Build.PL
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/Build.PL?rev=38994&op=diff
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/Build.PL (original)
+++ branches/upstream/libtest-refcount-perl/current/Build.PL Tue Jun 30 14:19:07 2009
@@ -9,6 +9,7 @@
requires => {
'Devel::FindRef' => 0,
'Devel::Refcount' => 0,
+ 'Scalar::Util' => 0,
'Test::Builder' => 0,
},
build_requires => {
@@ -17,6 +18,8 @@
},
license => 'perl',
create_makefile_pl => 'traditional',
+ create_license => 1,
+ create_readme => 1,
);
$build->create_build_script;
Added: branches/upstream/libtest-refcount-perl/current/Changes
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/Changes?rev=38994&op=file
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/Changes (added)
+++ branches/upstream/libtest-refcount-perl/current/Changes Tue Jun 30 14:19:07 2009
@@ -1,0 +1,23 @@
+Revision history for Test-Refcount
+
+0.05 CHANGES:
+ * Added 'use warnings'
+ * Various small updates to keep CPANTS happy
+
+0.04 BUGFIXES:
+ * Skip regexp count tests on perl 5.11 because of ongoing issue with
+ refcounts there.
+
+0.03 BUGFIXES:
+ * Updated regexps in test code to account for change in
+ Devel::FindRef's output format at version 1.4
+ (fixes http://rt.cpan.org/Public/Bug/Display.html?id=41487)
+
+0.02 CHANGES:
+ * Use Devel::FindRef to print a trace of references if the assert
+ fails.
+ * Much extended documentation, showing a likely use case and example
+ of broken code.
+
+0.01 First version, released on an unsuspecting world.
+
Added: branches/upstream/libtest-refcount-perl/current/LICENSE
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/LICENSE?rev=38994&op=file
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/LICENSE (added)
+++ branches/upstream/libtest-refcount-perl/current/LICENSE Tue Jun 30 14:19:07 2009
@@ -1,0 +1,377 @@
+This software is copyright (c) 2009 by Paul Evans <leonerd at leonerd.org.uk>.
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+Terms of the Perl programming language system itself
+
+a) the GNU General Public License as published by the Free
+ Software Foundation; either version 1, or (at your option) any
+ later version, or
+b) the "Artistic License"
+
+--- The GNU General Public License, Version 1, February 1989 ---
+
+This software is Copyright (c) 2009 by Paul Evans <leonerd at leonerd.org.uk>.
+
+This is free software, licensed under:
+
+ The GNU General Public License, Version 1, February 1989
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 1, February 1989
+
+ Copyright (C) 1989 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
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+License is intended to guarantee your freedom to share and change free
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+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+That's all there is to it!
+
+
+--- The Artistic License 1.0 ---
+
+This software is Copyright (c) 2009 by Paul Evans <leonerd at leonerd.org.uk>.
+
+This is free software, licensed under:
+
+ The Artistic License 1.0
+
+The Artistic License
+
+Preamble
+
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+a way shall still be considered the Standard Version.
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+ Freely Available, such as by posting said modifications to Usenet or an
+ equivalent medium, or placing the modifications on a major archive site
+ such as ftp.uu.net, or by allowing the Copyright Holder to include your
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+ b) accompany the distribution with the machine-readable source of the Package
+ with your modifications.
+
+ c) accompany any non-standard executables with their corresponding Standard
+ Version executables, giving the non-standard executables non-standard
+ names, and clearly documenting the differences in manual pages (or
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+ Version.
+
+ d) make other distribution arrangements with the Copyright Holder.
+
+5. You may charge a reasonable copying fee for any distribution of this
+Package. You may charge any fee you choose for support of this Package. You
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+Package in aggregate with other (possibly commercial) programs as part of a
+larger (possibly commercial) software distribution provided that you do not
+advertise this Package as a product of your own.
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+6. The scripts and library files supplied as input to or produced as output
+from the programs of this Package do not automatically fall under the copyright
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+commercially, and may be aggregated with this Package.
+
+7. C or perl subroutines supplied by you and linked into this Package shall not
+be considered part of this Package.
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+8. The name of the Copyright Holder may not be used to endorse or promote
+products derived from this software without specific prior written permission.
+
+9. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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+The End
+
Modified: branches/upstream/libtest-refcount-perl/current/MANIFEST
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/MANIFEST?rev=38994&op=diff
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/MANIFEST (original)
+++ branches/upstream/libtest-refcount-perl/current/MANIFEST Tue Jun 30 14:19:07 2009
@@ -1,10 +1,14 @@
Build.PL
+Changes
lib/Test/Refcount.pm
+LICENSE
Makefile.PL
MANIFEST This list of files
META.yml
+README
t/00use.t
t/01count.t
t/02one.t
t/03weak.t
t/04reftypes.t
+t/99pod.t
Modified: branches/upstream/libtest-refcount-perl/current/META.yml
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/META.yml?rev=38994&op=diff
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/META.yml (original)
+++ branches/upstream/libtest-refcount-perl/current/META.yml Tue Jun 30 14:19:07 2009
@@ -1,8 +1,8 @@
---
name: Test-Refcount
-version: 0.04
+version: 0.05
author:
- - 'Paul Evans E<lt>leonerd at leonerd.org.ukE<gt>'
+ - 'Paul Evans <leonerd at leonerd.org.uk>'
abstract: assert reference counts on objects
license: perl
resources:
@@ -10,6 +10,7 @@
requires:
Devel::FindRef: 0
Devel::Refcount: 0
+ Scalar::Util: 0
Test::Builder: 0
build_requires:
Test::Builder::Tester: 0
@@ -17,8 +18,8 @@
provides:
Test::Refcount:
file: lib/Test/Refcount.pm
- version: 0.04
-generated_by: Module::Build version 0.280801
+ version: 0.05
+generated_by: Module::Build version 0.33
meta-spec:
- url: http://module-build.sourceforge.net/META-spec-v1.2.html
- version: 1.2
+ url: http://module-build.sourceforge.net/META-spec-v1.4.html
+ version: 1.4
Modified: branches/upstream/libtest-refcount-perl/current/Makefile.PL
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/Makefile.PL?rev=38994&op=diff
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/Makefile.PL (original)
+++ branches/upstream/libtest-refcount-perl/current/Makefile.PL Tue Jun 30 14:19:07 2009
@@ -1,4 +1,4 @@
-# Note: this file was auto-generated by Module::Build::Compat version 0.2808_01
+# Note: this file was auto-generated by Module::Build::Compat version 0.33
use ExtUtils::MakeMaker;
WriteMakefile
(
@@ -7,6 +7,7 @@
'PREREQ_PM' => {
'Devel::FindRef' => 0,
'Devel::Refcount' => 0,
+ 'Scalar::Util' => 0,
'Test::Builder' => 0,
'Test::Builder::Tester' => 0,
'Test::More' => 0
Added: branches/upstream/libtest-refcount-perl/current/README
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/README?rev=38994&op=file
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/README (added)
+++ branches/upstream/libtest-refcount-perl/current/README Tue Jun 30 14:19:07 2009
@@ -1,0 +1,137 @@
+NAME
+ "Test::Refcount" - assert reference counts on objects
+
+SYNOPSIS
+ use Test::More tests => 2;
+ use Test::Refcount;
+
+ use Some::Class;
+
+ my $object = Some::Class->new();
+
+ is_oneref( $object, '$object has a refcount of 1' );
+
+ my $otherref = $object;
+
+ is_refcount( $object, 2, '$object now has 2 references' );
+
+DESCRIPTION
+ The Perl garbage collector uses simple reference counting during the
+ normal execution of a program. This means that cycles or unweakened
+ references in other parts of code can keep an object around for longer
+ than intended. To help avoid this problem, the reference count of a new
+ object from its class constructor ought to be 1. This way, the caller
+ can know the object will be properly DESTROYed when it drops all of its
+ references to it.
+
+ This module provides two test functions to help ensure this property
+ holds for an object class, so as to be polite to its callers.
+
+ If the assertion fails; that is, if the actual reference count is
+ different to what was expected, a trace of references to the object is
+ printed, using Marc Lehmann's Devel::FindRef module. See the examples
+ below for more information.
+
+FUNCTIONS
+ is_refcount( $object, $count, $name )
+ Test that $object has $count references to it.
+
+ is_oneref( $object, $name )
+ Assert that the $object has only 1 reference to it.
+
+EXAMPLE
+ Suppose, having written a new class "MyBall", you now want to check that
+ its constructor and methods are well-behaved, and don't leak references.
+ Consider the following test script:
+
+ use Test::More tests => 2;
+ use Test::Refcount;
+
+ use MyBall;
+
+ my $ball = MyBall->new();
+ is_oneref( $ball, 'One reference after construct' );
+
+ $ball->bounce;
+
+ # Any other code here that might be part of the test script
+
+ is_oneref( $ball, 'One reference just before EOF' );
+
+ The first assertion is just after the constructor, to check that the
+ reference returned by it is the only reference to that object. This fact
+ is important if we ever want "DESTROY" to behave properly. The second
+ call is right at the end of the file, just before the main scope closes.
+ At this stage we expect the reference count also to be one, so that the
+ object is properly cleaned up.
+
+ Suppose, when run, this produces the following output:
+
+ 1..2
+ ok 1 - One reference after construct
+ not ok 2 - One reference just before EOF
+ # Failed test 'One reference just before EOF'
+ # at demo.pl line 16.
+ # expected 1 references, found 2
+ # MyBall=ARRAY(0x817f880) is
+ # +- referenced by REF(0x82c1fd8), which is
+ # | in the member 'self' of HASH(0x82c1f68), which is
+ # | referenced by REF(0x81989d0), which is
+ # | in the member 'cycle' of HASH(0x82c1f68), which was seen before.
+ # +- referenced by REF(0x82811d0), which is
+ # in the lexical '$ball' in CODE(0x817fa00), which is
+ # the main body of the program.
+ # Looks like you failed 1 test of 2.
+
+ From this output, we can see that the constructor was well-behaved, but
+ that a reference was leaked by the end of the script - the reference
+ count was 2, when we expected just 1. Reading the trace output, we can
+ see that there were 2 references that "Devel::FindRef" could find - one
+ stored in the $ball lexical in the main program, and one stored in a
+ HASH. Since we expected to find the $ball lexical variable, we know we
+ are now looking for a leak in a hash somewhere in the code. From reading
+ the test script, we can guess this leak is likely to be in the bounce()
+ method. Furthermore, we know that the reference to the object will be
+ stored in a HASH in a member called "self".
+
+ By reading the code which implements the bounce() method, we can see
+ this is indeed the case:
+
+ sub bounce
+ {
+ my $self = shift;
+ my $cycle = { self => $self };
+ $cycle->{cycle} = $cycle;
+ }
+
+ From reading the "Devel::FindRef" output, we find that the HASH this
+ object is referenced in also contains a reference to itself, in a member
+ called "cycle". This comes from the last line in this function, a line
+ that purposely created a cycle, to demonstrate the point. While a real
+ program probably wouldn't do anything quite this obvious, the trace
+ would still be useful in finding the likely cause of the leak.
+
+BUGS
+ * Temporaries created on the stack
+
+ Code which creates temporaries on the stack, to be released again
+ when the called function returns does not work correctly on perl 5.8
+ (and probably before). Examples such as
+
+ is_oneref( [] );
+
+ may fail and claim a reference count of 2 instead.
+
+ Passing a variable such as
+
+ my $array = [];
+ is_oneref( $array );
+
+ works fine. Because of the intention of this test module; that is,
+ to assert reference counts on some object stored in a variable
+ during the lifetime of the test script, this is unlikely to cause
+ any problems.
+
+AUTHOR
+ Paul Evans <leonerd at leonerd.org.uk>
+
Modified: branches/upstream/libtest-refcount-perl/current/lib/Test/Refcount.pm
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/lib/Test/Refcount.pm?rev=38994&op=diff
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/lib/Test/Refcount.pm (original)
+++ branches/upstream/libtest-refcount-perl/current/lib/Test/Refcount.pm Tue Jun 30 14:19:07 2009
@@ -6,6 +6,7 @@
package Test::Refcount;
use strict;
+use warnings;
use base qw( Test::Builder::Module );
use Scalar::Util qw( weaken );
@@ -13,7 +14,7 @@
use Devel::Refcount qw( refcount );
use Devel::FindRef;
-our $VERSION = '0.04';
+our $VERSION = '0.05';
our @EXPORT = qw(
is_refcount
@@ -210,4 +211,4 @@
=head1 AUTHOR
-Paul Evans E<lt>leonerd at leonerd.org.ukE<gt>
+Paul Evans <leonerd at leonerd.org.uk>
Added: branches/upstream/libtest-refcount-perl/current/t/99pod.t
URL: http://svn.debian.org/wsvn/pkg-perl/branches/upstream/libtest-refcount-perl/current/t/99pod.t?rev=38994&op=file
==============================================================================
--- branches/upstream/libtest-refcount-perl/current/t/99pod.t (added)
+++ branches/upstream/libtest-refcount-perl/current/t/99pod.t Tue Jun 30 14:19:07 2009
@@ -1,0 +1,8 @@
+#!/usr/bin/perl -w
+
+use Test::More;
+
+eval "use Test::Pod 1.00";
+plan skip_all => "Test::Pod 1.00 required for testing POD" if $@;
+
+all_pod_files_ok();
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