X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2F52leaks.t;h=bd159a7ff337346695512e0f18a2e515ef3d281d;hb=d6c13bfdf6656317fedbf7e9deeb450cf42efb5b;hp=792c3d331ef06eceb93bfe5ebc7bc689b6f5b6a8;hpb=d5e5fb4b47b759b202e552ff1d2f1dd393ac7b39;p=dbsrgits%2FDBIx-Class.git

diff --git a/t/52leaks.t b/t/52leaks.t
index 792c3d3..bd159a7 100644
--- a/t/52leaks.t
+++ b/t/52leaks.t
@@ -1,5 +1,13 @@
-use strict;
-use warnings;
+BEGIN { do "./t/lib/ANFANG.pm" or die ( $@ || $! ) }
+
+# work around brain damage in PPerl (yes, it has to be a global)
+$SIG{__WARN__} = sub {
+  warn @_ unless $_[0] =~ /\QUse of "goto" to jump into a construct is deprecated/
+} if ($ENV{DBICTEST_IN_PERSISTENT_ENV});
+
+# the persistent environments run with this flag first to see if
+# we will run at all (e.g. it will fail if $^X doesn't match)
+exit 0 if $ENV{DBICTEST_PERSISTENT_ENV_BAIL_EARLY};
 
 # Do the override as early as possible so that CORE::bless doesn't get compiled away
 # We will replace $bless_override only if we are in author mode
@@ -11,45 +19,53 @@ BEGIN {
   *CORE::GLOBAL::bless = sub { goto $bless_override };
 }
 
+use strict;
+use warnings;
 use Test::More;
 
-use lib qw(t/lib);
-use DBICTest::RunMode;
 BEGIN {
+  require DBICTest::Util;
   plan skip_all => "Your perl version $] appears to leak like a sieve - skipping test"
-    if DBICTest::RunMode->peepeeness;
+    if DBICTest::Util::PEEPEENESS();
 }
 
-use Scalar::Util qw/refaddr reftype weaken/;
-use Carp qw/longmess/;
-use Try::Tiny;
+use DBICTest::RunMode;
+use DBICTest::Util::LeakTracer qw(populate_weakregistry assert_empty_weakregistry visit_refs);
+use Scalar::Util qw(weaken blessed reftype);
+use DBIx::Class::_Util qw(hrefaddr sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt);
+use DBIx::Class::Optional::Dependencies;
+
+my $TB = Test::More->builder;
+if ($ENV{DBICTEST_IN_PERSISTENT_ENV}) {
+  # without this explicit close TB warns in END after a ->reset
+  close ($TB->$_) for qw(output failure_output todo_output);
+
+  # newer TB does not auto-reopen handles
+  if ( modver_gt_or_eq( 'Test::More', '1.200' ) ) {
+    open ($TB->$_, '>&', *STDERR)
+      for qw( failure_output todo_output );
+    open ($TB->output, '>&', *STDOUT);
+  }
 
-my $have_test_cycle;
-BEGIN {
-  require DBIx::Class::Optional::Dependencies;
-  $have_test_cycle = DBIx::Class::Optional::Dependencies->req_ok_for ('test_leaks')
-    and import Test::Memory::Cycle;
+  # so done_testing can work on every persistent pass
+  $TB->reset;
 }
 
 # this is what holds all weakened refs to be checked for leakage
 my $weak_registry = {};
 
-# Skip the heavy-duty leak tracing when just doing an install
-unless (DBICTest::RunMode->is_plain) {
+# whether or to invoke IC::DT
+my $has_dt;
 
-  # Some modules are known to install singletons on-load
-  # Load them before we swap out $bless_override
-  require DBI;
-  require DBD::SQLite;
-  require Errno;
-  require Class::Struct;
-  require FileHandle;
-  require Hash::Merge;
+# Skip the heavy-duty leak tracing when just doing an install
+# or when having Moose crap all over everything
+# FIXME - remove when Replicated gets off Moose
+if ( !$ENV{DBICTEST_VIA_REPLICATED} and !DBICTest::RunMode->is_plain ) {
 
+  # redefine the bless override so that we can catch each and every object created
   no warnings qw/redefine once/;
   no strict qw/refs/;
 
-  # redefine the bless override so that we can catch each and every object created
   $bless_override = sub {
 
     my $obj = CORE::bless(
@@ -61,52 +77,65 @@ unless (DBICTest::RunMode->is_plain) {
       }
     );
 
-    my $slot = (sprintf '%s=%s(0x%x)', # so we don't trigger stringification
-      ref $obj,
-      reftype $obj,
-      refaddr $obj,
-    );
+    # unicode is tricky, and now we happen to invoke it early via a
+    # regex in connection()
+    return $obj if (ref $obj) =~ /^utf8/;
 
-    # weaken immediately to avoid weird side effects
-    $weak_registry->{$slot} = { weakref => $obj, strace => longmess() };
-    weaken $weak_registry->{$slot}{weakref};
+    # Test Builder is now making a new object for every pass/fail (que bloat?)
+    # and as such we can't really store any of its objects (since it will
+    # re-populate the registry while checking it, ewwww!)
+    return $obj if (ref $obj) =~ /^TB2::|^Test::Stream/;
 
-    return $obj;
+    # populate immediately to avoid weird side effects
+    return populate_weakregistry ($weak_registry, $obj );
   };
 
+  require Try::Tiny;
   for my $func (qw/try catch finally/) {
     my $orig = \&{"Try::Tiny::$func"};
     *{"Try::Tiny::$func"} = sub (&;@) {
-
-      my $slot = sprintf ('CODE(0x%x)', refaddr $_[0]);
-
-      $weak_registry->{$slot} = { weakref => $_[0], strace => longmess() };
-      weaken $weak_registry->{$slot}{weakref};
-
+      populate_weakregistry( $weak_registry, $_[0] );
       goto $orig;
     }
   }
+
+  # Some modules are known to install singletons on-load
+  # Load them and empty the registry
+
+  # this loads the DT armada
+  $has_dt = DBIx::Class::Optional::Dependencies->req_ok_for([qw( test_rdbms_sqlite ic_dt )]);
+
+  require DBI;
+  require DBD::SQLite;
+  require Moo;
+  require Math::BigInt;
+
+  %$weak_registry = ();
 }
 
 {
-  require DBICTest;
+  use_ok ('DBICTest');
 
   my $schema = DBICTest->init_schema;
   my $rs = $schema->resultset ('Artist');
   my $storage = $schema->storage;
 
-  ok ($storage->connected, 'we are connected');
-
-  my $row_obj = $rs->next;
+  my $row_obj = $rs->search({}, { rows => 1})->next;  # so that commits/rollbacks work
   ok ($row_obj, 'row from db');
 
+  # txn_do to invoke more codepaths
   my ($mc_row_obj, $pager, $pager_explicit_count) = $schema->txn_do (sub {
 
-    my $artist = $rs->create ({
+    my $artist = $schema->resultset('Artist')->create ({
       name => 'foo artist',
       cds => [{
         title => 'foo cd',
         year => 1984,
+        tracks => [
+          { title => 't1' },
+          { title => 't2' },
+        ],
+        genre => { name => 'mauve' },
       }],
     });
 
@@ -117,96 +146,495 @@ unless (DBICTest::RunMode->is_plain) {
     return ($artist, $pg, $pg_wcount);
   });
 
+  # more codepaths - error handling in txn_do
+  {
+    eval { $schema->txn_do ( sub {
+      $storage->_dbh->begin_work;
+      fail ('how did we get so far?!');
+    } ) };
+
+    eval { $schema->txn_do ( sub {
+      $schema->txn_do ( sub {
+        die "It's called EXCEPTION";
+        fail ('how did we get so far?!');
+      } );
+      fail ('how did we get so far?!');
+    } ) };
+    like( $@, qr/It\'s called EXCEPTION/, 'Exception correctly propagated in nested txn_do' );
+  }
+
+  # dbh_do codepath
+  my ($rs_bind_circref, $cond_rowobj) = $schema->storage->dbh_do ( sub {
+    my $row = $_[0]->schema->resultset('Artist')->new({});
+    my $rs = $_[0]->schema->resultset('Artist')->search({
+      name => $row,  # this is deliberately bogus, see FIXME below!
+    });
+    return ($rs, $row);
+  });
+
   is ($pager->next_page, 3, 'There is one more page available');
 
   # based on 66 per 10 pages
   is ($pager_explicit_count->last_page, 7, 'Correct last page');
 
-  my $base_collection = {
-    schema => $schema,
-    storage => $storage,
+  # do some population (invokes some extra codepaths)
+  # also exercise the guard code and the manual txn control
+  {
+    my $guard = $schema->txn_scope_guard;
+    # populate with bindvars
+    $rs->populate([{ name => 'James Bound' }]);
+    $guard->commit;
+
+    $schema->txn_begin;
+    # populate mixed
+    $rs->populate([{ name => 'James Rebound', rank => \ '11'  }]);
+    $schema->txn_commit;
+
+    $schema->txn_begin;
+    # and without bindvars
+    $rs->populate([{ name => \ '"James Unbound"' }]);
+    $schema->txn_rollback;
+  }
 
+  # prefetching
+  my $cds_rs = $schema->resultset('CD');
+  my $cds_with_artist = $cds_rs->search({}, { prefetch => 'artist' });
+  my $cds_with_tracks = $cds_rs->search({}, { prefetch => 'tracks' });
+  my $cds_with_stuff = $cds_rs->search({}, { prefetch => [ 'genre', { artist => { cds => { tracks => 'cd_single' } } } ] });
+
+  # implicit pref
+  my $cds_with_impl_artist = $cds_rs->search({}, { columns => [qw/me.title artist.name/], join => 'artist' });
+
+  # get_column
+  my $getcol_rs = $cds_rs->get_column('me.cdid');
+  my $pref_getcol_rs = $cds_with_stuff->get_column('me.cdid');
+
+  my $base_collection = {
     resultset => $rs,
 
+    pref_precursor => $cds_rs,
+
+    pref_rs_single => $cds_with_artist,
+    pref_rs_multi => $cds_with_tracks,
+    pref_rs_nested => $cds_with_stuff,
+
+    pref_rs_implicit => $cds_with_impl_artist,
+
+    pref_row_single => $cds_with_artist->next,
+    pref_row_multi => $cds_with_tracks->next,
+    pref_row_nested => $cds_with_stuff->next,
+
+    # even though this does not leak Storable croaks on it :(((
+    #pref_row_implicit => $cds_with_impl_artist->next,
+
+    get_column_rs_plain => $getcol_rs,
+    get_column_rs_pref => $pref_getcol_rs,
+
+    # twice so that we make sure only one H::M object spawned
+    chained_resultset => $rs->search_rs ({}, { '+columns' => { foo => 'artistid' } } ),
+    chained_resultset2 => $rs->search_rs ({}, { '+columns' => { bar => 'artistid' } } ),
+
     row_object => $row_obj,
 
+    mc_row_object => $mc_row_obj,
+
     result_source => $rs->result_source,
 
-    fresh_pager => $rs->page(5)->pager,
-    pager => $pager,
+    result_source_handle => $rs->result_source->handle,
+
     pager_explicit_count => $pager_explicit_count,
 
-    sql_maker => $storage->sql_maker,
-    dbh => $storage->_dbh
+    leaky_resultset => $rs_bind_circref,
+    leaky_resultset_cond => $cond_rowobj,
   };
 
-  memory_cycle_ok ($base_collection, 'No cycles in the object collection')
-    if $have_test_cycle;
+  # fire all resultsets multiple times, once here, more below
+  # some of these can't find anything (notably leaky_resultset)
+  my @rsets = grep {
+    blessed $_
+      and
+    (
+      $_->isa('DBIx::Class::ResultSet')
+        or
+      $_->isa('DBIx::Class::ResultSetColumn')
+    )
+  } values %$base_collection;
+
+
+  my $fire_resultsets = sub {
+    local $ENV{DBIC_COLUMNS_INCLUDE_FILTER_RELS} = 1;
+    local $SIG{__WARN__} = sigwarn_silencer(
+      qr/Unable to deflate 'filter'-type relationship 'artist'.+related object primary key not retrieved/
+    );
+
+    map
+      { $_, (blessed($_) ? { $_->get_columns } : ()) }
+      map
+        { $_->all }
+        @rsets
+    ;
+  };
 
-  for (keys %$base_collection) {
-    $weak_registry->{"basic $_"} = { weakref => $base_collection->{$_} };
-    weaken $weak_registry->{"basic $_"}{weakref};
+  push @{$base_collection->{random_results}}, $fire_resultsets->();
+
+  # FIXME - something throws a Storable for a spin if we keep
+  # the results in-collection. The same problem is seen above,
+  # swept under the rug back in 0a03206a, damned lazy ribantainer
+{
+  local $base_collection->{random_results};
+
+  require Storable;
+  %$base_collection = (
+    %$base_collection,
+    refrozen => Storable::dclone( $base_collection ),
+    rerefrozen => Storable::dclone( Storable::dclone( $base_collection ) ),
+    pref_row_implicit => $cds_with_impl_artist->next,
+    schema => $schema,
+    storage => $storage,
+    sql_maker => $storage->sql_maker,
+    dbh => $storage->_dbh,
+    fresh_pager => $rs->page(5)->pager,
+    pager => $pager,
+  );
+}
+
+  # FIXME - ideally this kind of collector ought to be global, but attempts
+  # with an invasive debugger-based tracer did not quite work out... yet
+  # Manually scan the innards of everything we have in the base collection
+  # we assembled so far (skip the DT madness below) *recursively*
+  #
+  # Only do this when we do have the bits to look inside CVs properly,
+  # without it we are liable to pick up object defaults that are locked
+  # in method closures
+  if (DBICTest::Util::LeakTracer::CV_TRACING) {
+    visit_refs(
+      refs => [ $base_collection ],
+      action => sub {
+        populate_weakregistry ($weak_registry, $_[0]);
+        1;  # true means "keep descending"
+      },
+    );
+
+    # do a heavy-duty fire-and-compare loop on all resultsets
+    # this is expensive - not running on install
+    my $typecounts = {};
+    if (
+      ! DBICTest::RunMode->is_plain
+        and
+      ! $ENV{DBICTEST_IN_PERSISTENT_ENV}
+    ) {
+
+      # FIXME - ideally we should be able to just populate an alternative
+      # registry, subtract everything from the main one, and arrive at
+      # an "empty" resulting hash
+      # However due to gross inefficiencies in the ::ResultSet code we
+      # end up recalculating a new set of aliasmaps which could have very
+      # well been cached if it wasn't for... anyhow
+      # What we do here for the time being is similar to the lazy approach
+      # of Devel::LeakTrace - we just make sure we do not end up with more
+      # reftypes than when we started. At least we are not blanket-counting
+      # SVs like D::LT does, but going by reftype... sigh...
+
+      for (values %$weak_registry) {
+        if ( my $r = reftype($_->{weakref}) ) {
+          $typecounts->{$r}--;
+        }
+      }
+
+      # For now we can only reuse the same registry, see FIXME above/below
+      #for my $interim_wr ({}, {}) {
+      for my $interim_wr ( ($weak_registry) x 4 ) {
+
+        visit_refs(
+          refs => [ $fire_resultsets->(), @rsets ],
+          action => sub {
+            populate_weakregistry ($interim_wr, $_[0]);
+            1;  # true means "keep descending"
+          },
+        );
+
+        # FIXME - this is what *should* be here
+        #
+        ## anything we have seen so far is cool
+        #delete @{$interim_wr}{keys %$weak_registry};
+        #
+        ## moment of truth - the rest ought to be gone
+        #assert_empty_weakregistry($interim_wr);
+      }
+
+      for (values %$weak_registry) {
+        if ( my $r = reftype($_->{weakref}) ) {
+          $typecounts->{$r}++;
+        }
+      }
+    }
+
+    for (keys %$typecounts) {
+      fail ("Amount of $_ refs changed by $typecounts->{$_} during resultset mass-execution")
+        if ( abs ($typecounts->{$_}) > 1 ); # there is a pad caught somewhere, the +1/-1 can be ignored
+    }
+  }
+
+  if ($has_dt) {
+    my $rs = $base_collection->{icdt_rs} = $schema->resultset('Event');
+
+    my $now = DateTime->now;
+    for (1..5) {
+      $base_collection->{"icdt_row_$_"} = $rs->create({
+        created_on => DateTime->new(year => 2011, month => 1, day => $_, time_zone => "-0${_}00" ),
+        starts_at => $now->clone->add(days => $_),
+      });
+    }
+
+    # re-search
+    my @dummy = $rs->all;
+  }
+
+  # dbh's are created in XS space, so pull them separately
+  for ( grep { defined } map { @{$_->{ChildHandles}} } values %{ {DBI->installed_drivers()} } ) {
+    $base_collection->{"DBI handle $_"} = $_;
   }
 
+  populate_weakregistry ($weak_registry, $base_collection->{$_}, "basic $_")
+    for keys %$base_collection;
 }
 
-memory_cycle_ok($weak_registry, 'No cycles in the weakened object collection')
-  if $have_test_cycle;
+# check that "phantom-chaining" works - we never lose track of the original $schema
+# and have access to the entire tree without leaking anything
+{
+  my $phantom;
+  for (
+    sub { DBICTest->init_schema( sqlite_use_file => 0 ) },
+    sub { shift->source('Artist') },
+    sub { shift->resultset },
+    sub { shift->result_source },
+    sub { shift->schema },
+    sub { shift->resultset('Artist') },
+    sub { shift->find_or_create({ name => 'detachable' }) },
+    sub { shift->result_source },
+    sub { shift->schema },
+    sub { shift->clone },
+    sub { shift->resultset('CD') },
+    sub { shift->next },
+    sub { shift->artist },
+    sub { shift->search_related('cds') },
+    sub { shift->next },
+    sub { shift->search_related('artist') },
+    sub { shift->result_source },
+    sub { shift->resultset },
+    sub { shift->create({ name => 'detached' }) },
+    sub { shift->update({ name => 'reattached' }) },
+    sub { shift->discard_changes },
+    sub { shift->delete },
+    sub { shift->insert },
+  ) {
+    $phantom = populate_weakregistry ( $weak_registry, scalar $_->($phantom) );
+  }
+
+  ok( $phantom->in_storage, 'Properly deleted/reinserted' );
+  is( $phantom->name, 'reattached', 'Still correct name' );
+}
 
 # Naturally we have some exceptions
 my $cleared;
-for my $slot (keys %$weak_registry) {
-  if ($slot =~ /^\QTest::Builder/) {
+for my $addr (keys %$weak_registry) {
+  my $names = join "\n", keys %{$weak_registry->{$addr}{slot_names}};
+
+  if ($names =~ /^Test::Builder/m) {
     # T::B 2.0 has result objects and other fancyness
-    delete $weak_registry->{$slot};
+    delete $weak_registry->{$addr};
+  }
+  # remove this when IO::Dir is gone from SQLT
+  elsif ($INC{"IO/Dir.pm"} and $names =~ /^Class::Struct::Tie_ISA/m) {
+    delete $weak_registry->{$addr};
+  }
+  elsif ($names =~ /^Hash::Merge/m) {
+    # only clear one object of a specific behavior - more would indicate trouble
+    delete $weak_registry->{$addr}
+      unless $cleared->{hash_merge_singleton}{$weak_registry->{$addr}{weakref}{behavior}}++;
   }
-  elsif ($slot =~ /^\QSQL::Translator/) {
-    # SQLT is a piece of shit, leaks all over
-    delete $weak_registry->{$slot};
+  elsif ($names =~ /^B::Hooks::EndOfScope::PP::_TieHintHashFieldHash/m) {
+    # there is one tied lexical which stays alive until GC time
+    # https://metacpan.org/source/ETHER/B-Hooks-EndOfScope-0.15/lib/B/Hooks/EndOfScope/PP/FieldHash.pm#L24
+    # simply ignore it here, instead of teaching the leaktracer to examine ties
+    # the latter is possible yet terrible: https://github.com/dbsrgits/dbix-class/blob/v0.082820/t/lib/DBICTest/Util/LeakTracer.pm#L113-L117
+    delete $weak_registry->{$addr}
+      unless $cleared->{bheos_pptiehinthashfieldhash}++;
   }
-  elsif ($slot =~ /^\QHash::Merge/) {
-    # only clear one object - more would indicate trouble
-    delete $weak_registry->{$slot}
-      unless $cleared->{hash_merge_singleton}{$weak_registry->{$slot}{weakref}{behavior}}++;
+  elsif (
+    $names =~ /^Data::Dumper/m
+      and
+    $weak_registry->{$addr}{stacktrace} =~ /\bDBIx::Class::SQLMaker::Util::lax_serialize\b/
+  ) {
+    # only clear one object of a specific behavior - more would indicate trouble
+    delete $weak_registry->{$addr}
+      unless $cleared->{dd_lax_serializer}++;
   }
-  elsif ($slot =~ /^__TxnScopeGuard__FIXUP__/) {
-    die 'The $@ debacle should have been fixed by now!!!' if $] >= 5.013008;
-    delete $weak_registry->{$slot};
+  elsif ($names =~ /^DateTime::TimeZone::UTC/m) {
+    # DT is going through a refactor it seems - let it leak zones for now
+    delete $weak_registry->{$addr};
+  }
+  elsif (
+#    # if we can look at closed over pieces - we will register it as a global
+#    !DBICTest::Util::LeakTracer::CV_TRACING
+#      and
+    $names =~ /^SQL::Translator::Generator::DDL::SQLite/m
+  ) {
+    # SQLT::Producer::SQLite keeps global generators around for quoted
+    # and non-quoted DDL, allow one for each quoting style
+    delete $weak_registry->{$addr}
+      unless $cleared->{sqlt_ddl_sqlite}->{@{$weak_registry->{$addr}{weakref}->quote_chars}}++;
   }
 }
 
+# FIXME !!!
+# There is an actual strong circular reference taking place here, but because
+# half of it is in XS, so it is a bit harder to track down (it stumps D::FR)
+# (our tracker does not yet do it, but it'd be nice)
+# The problem is:
+#
+# $cond_object --> result_source --> schema --> storage --> $dbh --> {CachedKids}
+#          ^                                                           /
+#           \-------- bound value on prepared/cached STH  <-----------/
+#
+{
+  my @circreffed;
+
+  for my $r (map
+    { $_->{weakref} }
+    grep
+      { $_->{slot_names}{'basic leaky_resultset_cond'} }
+      values %$weak_registry
+  ) {
+    local $TODO = 'Needs Data::Entangled or somesuch - see RT#82942';
+    ok(! defined $r, 'Self-referential RS conditions no longer leak!')
+      or push @circreffed, $r;
+  }
+
+  if (@circreffed) {
+    is (scalar @circreffed, 1, 'One resultset expected to leak');
 
-# FIXME
-# For reasons I can not yet fully understand the table() god-method (located in
-# ::ResultSourceProxy::Table) attaches an actual source instance to each class
-# as virtually *immortal* class-data. 
-# For now just blow away these instances manually but there got to be a saner way
-$_->result_source_instance(undef) for (
-  'DBICTest::BaseResult',
-  map { DBICTest::Schema->class ($_) } DBICTest::Schema->sources
-);
+    # this is useless on its own, it is to showcase the circref-diag
+    # and eventually test it when it is operational
+    local $TODO = 'Needs Data::Entangled or somesuch - see RT#82942';
+    while (@circreffed) {
+      weaken (my $r = shift @circreffed);
 
-# FIXME
-# same problem goes for the schema - its classdata contains live result source
-# objects, which to add insult to the injury are *different* instances from the
-# ones we destroyed above
-DBICTest::Schema->source_registrations(undef);
+      populate_weakregistry( (my $mini_registry = {}), $r );
+      assert_empty_weakregistry( $mini_registry );
 
-my $tb = Test::More->builder;
-for my $slot (keys %$weak_registry) {
+      $r->result_source(undef);
+    }
+  }
+}
 
-  ok (! defined $weak_registry->{$slot}{weakref}, "No leaks of $slot") or do {
-    my $diag = '';
+assert_empty_weakregistry ($weak_registry);
 
-    $diag .= Devel::FindRef::track ($weak_registry->{$slot}{weakref}, 20) . "\n"
-      if ( $ENV{TEST_VERBOSE} && try { require Devel::FindRef });
+# we got so far without a failure - this is a good thing
+# now let's try to rerun this script under a "persistent" environment
+# this is ugly and dirty but we do not yet have a Test::Embedded or
+# similar
 
-    if (my $stack = $weak_registry->{$slot}{strace}) {
-      $diag .= "    Reference first seen$stack";
-    }
+my $persistence_tests;
+SKIP: {
+  skip 'Test already in a persistent loop', 1
+    if $ENV{DBICTEST_IN_PERSISTENT_ENV};
 
-    diag $diag if $diag;
+  skip 'Main test failed - skipping persistent env tests', 1
+    unless $TB->is_passing;
+
+  skip "Test::Builder\@@{[ Test::Builder->VERSION ]} known to break persistence tests", 1
+    if modver_gt_or_eq_and_lt( 'Test::More', '1.200', '1.301001_099' );
+
+  local $ENV{DBICTEST_IN_PERSISTENT_ENV} = 1;
+  local $ENV{DBICTEST_ANFANG_DEFANG} = 1;
+
+  require File::Spec;
+
+  $persistence_tests = {
+    PPerl => {
+      cmd => [qw/pperl --prefork=1/, __FILE__],
+    },
+    'CGI::SpeedyCGI' => {
+      cmd => [qw/speedy -- -t5/, __FILE__],
+    },
   };
+
+  # scgi is smart and will auto-reap after -t amount of seconds
+  # pperl needs an actual killer :(
+  $persistence_tests->{PPerl}{termcmd} = [
+    $persistence_tests->{PPerl}{cmd}[0],
+    '--kill',
+    @{$persistence_tests->{PPerl}{cmd}}[ 1 .. $#{$persistence_tests->{PPerl}{cmd}} ],
+  ];
+
+  # set up -I
+  require Config;
+  $ENV{PERL5LIB} = join ($Config::Config{path_sep}, @INC);
+
+  # adjust PATH for -T
+  if (length $ENV{PATH}) {
+    ( $ENV{PATH} ) = join ( $Config::Config{path_sep},
+      map { length($_) ? File::Spec->rel2abs($_) : () }
+        split /\Q$Config::Config{path_sep}/, $ENV{PATH}
+    ) =~ /\A(.+)\z/;
+  }
+
+  for my $type (keys %$persistence_tests) { SKIP: {
+    unless (eval "require $type") {
+      # Don't terminate what we didn't start
+      delete $persistence_tests->{$type}{termcmd};
+      skip "$type module not found", 1;
+    }
+
+    my @cmd = @{$persistence_tests->{$type}{cmd}};
+
+    # since PPerl is racy and sucks - just prime the "server"
+    {
+      local $ENV{DBICTEST_PERSISTENT_ENV_BAIL_EARLY} = 1;
+      system(@cmd);
+      sleep 1;
+
+      # see if the thing actually runs, if not - might as well bail now
+      skip "Something is wrong with $type ($!)", 1
+        if system(@cmd);
+    }
+
+    require IPC::Open2;
+
+    for (1,2,3) {
+      note ("Starting run in persistent env ($type pass $_)");
+      IPC::Open2::open2(my $out, undef, @cmd);
+      my @out_lines;
+      while (my $ln = <$out>) {
+        next if $ln =~ /^\s*$/;
+        push @out_lines, "   $ln";
+        last if $ln =~ /^\d+\.\.\d+$/;  # this is persistence, we need to terminate reading on our end
+      }
+      print $_ for @out_lines;
+      close $out;
+      wait;
+      ok (!$?, "Run in persistent env ($type pass $_): exit $?");
+      ok (scalar @out_lines, "Run in persistent env ($type pass $_): got output");
+    }
+
+    ok (! system (@{$persistence_tests->{$type}{termcmd}}), "killed $type server instance")
+      if $persistence_tests->{$type}{termcmd};
+  }}
 }
 
 done_testing;
+
+# just an extra precaution in case we blew away from the SKIP - since there are no
+# PID files to go by (man does pperl really suck :(
+END {
+  if ($persistence_tests->{PPerl}{termcmd}) {
+    local $?; # otherwise test will inherit $? of the system()
+    require IPC::Open3;
+    open my $null, ">", File::Spec->devnull;
+    waitpid(
+      IPC::Open3::open3(undef, $null, $null, @{$persistence_tests->{PPerl}{termcmd}}),
+      0,
+    );
+  }
+}