1 package DBICTest::Util;
7 use Scalar::Util qw/isweak weaken blessed reftype refaddr/;
10 our @EXPORT_OK = qw/stacktrace populate_weakregistry assert_empty_weakregistry/;
17 while (@frame = caller($frame++)) {
18 push @stack, [@frame[3,1,2]];
21 return undef unless @stack;
24 return join "\tinvoked as ", map { sprintf ("%s at %s line %d\n", @$_ ) } @stack;
27 sub populate_weakregistry {
28 my ($reg, $target, $slot) = @_;
31 croak 'Target is not a reference' unless defined ref $target;
33 $slot ||= (sprintf '%s%s(0x%x)', # so we don't trigger stringification
34 (defined blessed $target) ? blessed($target) . '=' : '',
39 weaken( $reg->{$slot}{weakref} = $target );
40 $reg->{$slot}{stacktrace} = stacktrace(1);
46 sub assert_empty_weakregistry {
47 my ($weak_registry, $quiet) = @_;
49 croak 'Expecting a registry hashref' unless ref $weak_registry eq 'HASH';
51 return unless keys %$weak_registry;
53 my $tb = eval { Test::Builder->new }
54 or croak 'Calling test_weakregistry without a loaded Test::Builder makes no sense';
56 for my $slot (sort keys %$weak_registry) {
57 next if ! defined $weak_registry->{$slot}{weakref};
58 $tb->BAILOUT("!!!! WEAK REGISTRY SLOT $slot IS NOT A WEAKREF !!!!")
59 unless isweak( $weak_registry->{$slot}{weakref} );
63 for my $slot (sort keys %$weak_registry) {
64 ! defined $weak_registry->{$slot}{weakref} and next if $quiet;
66 $tb->ok (! defined $weak_registry->{$slot}{weakref}, "No leaks of $slot") or do {
71 $diag .= Devel::FindRef::track ($weak_registry->{$slot}{weakref}, 20) . "\n"
72 if ( $ENV{TEST_VERBOSE} && eval { require Devel::FindRef });
74 if (my $stack = $weak_registry->{$slot}{stacktrace}) {
75 $diag .= " Reference first seen$stack";
78 $tb->diag($diag) if $diag;
85 my $tb = Test::Builder->new;
87 "\n\n%s\n%s\n\nInstall Devel::FindRef and re-run the test with set "
88 . '$ENV{TEST_VERBOSE} (prove -v) to see a more detailed leak-report'
89 . "\n\n%s\n%s\n\n", ('#' x 16) x 4
90 ) if (!$tb->is_passing and (!$ENV{TEST_VERBOSE} or !$INC{'Devel/FindRef.pm'}));