4 # Do the override as early as possible so that CORE::bless doesn't get compiled away
5 # We will replace $bless_override only if we are in author mode
8 $bless_override = sub {
9 CORE::bless( $_[0], (@_ > 1) ? $_[1] : caller() );
11 *CORE::GLOBAL::bless = sub { goto $bless_override };
16 plan skip_all => '5.13.6 leaks like a sieve (fixed in blead/cefd5c7c)'
20 use Scalar::Util qw/refaddr reftype weaken/;
21 use Carp qw/longmess/;
25 use DBICTest::RunMode;
29 require DBIx::Class::Optional::Dependencies;
30 $have_test_cycle = DBIx::Class::Optional::Dependencies->req_ok_for ('test_leaks')
31 and import Test::Memory::Cycle;
34 # this is what holds all weakened refs to be checked for leakage
35 my $weak_registry = {};
37 # Skip the heavy-duty leak tracing when just doing an install
38 unless (DBICTest::RunMode->is_plain) {
40 # Some modules are known to install singletons on-load
41 # Load them before we swap out $bless_override
45 require Class::Struct;
49 no warnings qw/redefine once/;
52 # redefine the bless override so that we can catch each and every object created
53 $bless_override = sub {
55 my $obj = CORE::bless(
56 $_[0], (@_ > 1) ? $_[1] : do {
57 my ($class, $fn, $line) = caller();
58 fail ("bless() of $_[0] into $class without explicit class specification at $fn line $line")
59 if $class =~ /^ (?: DBIx\:\:Class | DBICTest ) /x;
64 my $slot = (sprintf '%s=%s(0x%x)', # so we don't trigger stringification
70 # weaken immediately to avoid weird side effects
71 $weak_registry->{$slot} = { weakref => $obj, strace => longmess() };
72 weaken $weak_registry->{$slot}{weakref};
77 for my $func (qw/try catch finally/) {
78 my $orig = \&{"Try::Tiny::$func"};
79 *{"Try::Tiny::$func"} = sub (&;@) {
81 my $slot = sprintf ('CODE(0x%x)', refaddr $_[0]);
83 $weak_registry->{$slot} = { weakref => $_[0], strace => longmess() };
84 weaken $weak_registry->{$slot}{weakref};
94 my $schema = DBICTest->init_schema;
95 my $rs = $schema->resultset ('Artist');
96 my $storage = $schema->storage;
98 ok ($storage->connected, 'we are connected');
100 my $row_obj = $rs->next;
101 ok ($row_obj, 'row from db');
103 my ($mc_row_obj, $pager, $pager_explicit_count) = $schema->txn_do (sub {
105 my $artist = $rs->create ({
106 name => 'foo artist',
113 my $pg = $rs->search({}, { rows => 1})->page(2)->pager;
115 my $pg_wcount = $rs->page(4)->pager->total_entries (66);
117 return ($artist, $pg, $pg_wcount);
120 is ($pager->next_page, 3, 'There is one more page available');
122 # based on 66 per 10 pages
123 is ($pager_explicit_count->last_page, 7, 'Correct last page');
125 my $base_collection = {
131 row_object => $row_obj,
133 result_source => $rs->result_source,
135 fresh_pager => $rs->page(5)->pager,
137 pager_explicit_count => $pager_explicit_count,
139 sql_maker => $storage->sql_maker,
140 dbh => $storage->_dbh
143 memory_cycle_ok ($base_collection, 'No cycles in the object collection')
146 for (keys %$base_collection) {
147 $weak_registry->{"basic $_"} = { weakref => $base_collection->{$_} };
148 weaken $weak_registry->{"basic $_"}{weakref};
153 memory_cycle_ok($weak_registry, 'No cycles in the weakened object collection')
156 # Naturally we have some exceptions
158 for my $slot (keys %$weak_registry) {
159 if ($slot =~ /^\QSQL::Translator/) {
160 # SQLT is a piece of shit, leaks all over
161 delete $weak_registry->{$slot};
163 elsif ($slot =~ /^\QHash::Merge/) {
164 # only clear one object - more would indicate trouble
165 delete $weak_registry->{$slot}
166 unless $cleared->{hash_merge_singleton}{$weak_registry->{$slot}{weakref}{behavior}}++;
168 elsif ($slot =~ /^__TxnScopeGuard__FIXUP__/) {
169 die 'The $@ debacle should have been fixed by now!!!' if $] >= 5.013008;
170 delete $weak_registry->{$slot};
176 # For reasons I can not yet fully understand the table() god-method (located in
177 # ::ResultSourceProxy::Table) attaches an actual source instance to each class
178 # as virtually *immortal* class-data.
179 # For now just blow away these instances manually but there got to be a saner way
180 $_->result_source_instance(undef) for (
181 'DBICTest::BaseResult',
182 map { DBICTest::Schema->class ($_) } DBICTest::Schema->sources
186 # same problem goes for the schema - its classdata contains live result source
187 # objects, which to add insult to the injury are *different* instances from the
188 # ones we destroyed above
189 DBICTest::Schema->source_registrations(undef);
191 my $tb = Test::More->builder;
192 for my $slot (keys %$weak_registry) {
194 ok (! defined $weak_registry->{$slot}{weakref}, "No leaks of $slot") or do {
197 $diag .= Devel::FindRef::track ($weak_registry->{$slot}{weakref}, 20) . "\n"
198 if ( $ENV{TEST_VERBOSE} && try { require Devel::FindRef });
200 if (my $stack = $weak_registry->{$slot}{strace}) {
201 $diag .= " Reference first seen$stack";