use strict;
use warnings;
use Test::More;
use Test::Warn;
use Test::Exception;
use lib qw(t/lib);
use DBICTest;
# Test txn_scope_guard
{
my $schema = DBICTest->init_schema();
is($schema->storage->transaction_depth, 0, "Correct transaction depth");
my $artist_rs = $schema->resultset('Artist');
my $fn = __FILE__;
throws_ok {
my $guard = $schema->txn_scope_guard;
$artist_rs->create({
name => 'Death Cab for Cutie',
made_up_column => 1,
});
$guard->commit;
} qr/No such column 'made_up_column' .*? at .*?\Q$fn\E line \d+/s, "Error propogated okay";
ok(!$artist_rs->find({name => 'Death Cab for Cutie'}), "Artist not created");
my $inner_exception = ''; # set in inner() below
throws_ok (sub {
outer($schema, 1);
}, qr/$inner_exception/, "Nested exceptions propogated");
ok(!$artist_rs->find({name => 'Death Cab for Cutie'}), "Artist not created");
lives_ok (sub {
# this weird assignment is to stop perl <= 5.8.9 leaking $schema on nested sub{}s
my $s = $schema;
warnings_exist ( sub {
# The 0 arg says don't die, just let the scope guard go out of scope
# forcing a txn_rollback to happen
outer($s, 0);
}, qr/A DBIx::Class::Storage::TxnScopeGuard went out of scope without explicit commit or error. Rolling back./, 'Out of scope warning detected');
ok(!$artist_rs->find({name => 'Death Cab for Cutie'}), "Artist not created");
}, 'rollback successful withot exception');
sub outer {
my ($schema, $fatal) = @_;
my $guard = $schema->txn_scope_guard;
$schema->resultset('Artist')->create({
name => 'Death Cab for Cutie',
});
inner($schema, $fatal);
}
sub inner {
my ($schema, $fatal) = @_;
my $inner_guard = $schema->txn_scope_guard;
is($schema->storage->transaction_depth, 2, "Correct transaction depth");
my $artist = $schema->resultset('Artist')->find({ name => 'Death Cab for Cutie' });
eval {
$artist->cds->create({
title => 'Plans',
year => 2005,
$fatal ? ( foo => 'bar' ) : ()
});
};
if ($@) {
# Record what got thrown so we can test it propgates out properly.
$inner_exception = $@;
die $@;
}
# inner guard should commit without consequences
$inner_guard->commit;
}
}
# make sure the guard does not eat exceptions
{
my $schema = DBICTest->init_schema;
no strict 'refs';
no warnings 'redefine';
local *{DBIx::Class::Storage::DBI::txn_rollback} = sub { die 'die die my darling' };
Class::C3->reinitialize() if DBIx::Class::_ENV_::OLD_MRO;
throws_ok (sub {
my $guard = $schema->txn_scope_guard;
$schema->resultset ('Artist')->create ({ name => 'bohhoo'});
# this should freak out the guard rollback
# but it won't work because DBD::SQLite is buggy
# instead just install a toxic rollback above
#$schema->storage->_dbh( $schema->storage->_dbh->clone );
die 'Deliberate exception';
}, ($] >= 5.013008 )
? qr/Deliberate exception/s # temporary until we get the generic exception wrapper rolling
: qr/Deliberate exception.+Rollback failed/s
);
# just to mask off warning since we could not disconnect above
$schema->storage->_dbh->disconnect;
}
# make sure it warns *big* on failed rollbacks
# test with and without a poisoned $@
for my $pre_poison (0,1) {
for my $post_poison (0,1) {
my $schema = DBICTest->init_schema(no_populate => 1);
no strict 'refs';
no warnings 'redefine';
local *{DBIx::Class::Storage::DBI::txn_rollback} = sub { die 'die die my darling' };
Class::C3->reinitialize() if DBIx::Class::_ENV_::OLD_MRO;
#The warn from within a DESTROY callback freaks out Test::Warn, do it old-school
=begin
warnings_exist (
sub {
my $guard = $schema->txn_scope_guard;
$schema->resultset ('Artist')->create ({ name => 'bohhoo'});
# this should freak out the guard rollback
# but it won't work because DBD::SQLite is buggy
# instead just install a toxic rollback above
#$schema->storage->_dbh( $schema->storage->_dbh->clone );
},
[
qr/A DBIx::Class::Storage::TxnScopeGuard went out of scope without explicit commit or error. Rolling back./,
qr/\*+ ROLLBACK FAILED\!\!\! \*+/,
],
'proper warnings generated on out-of-scope+rollback failure'
);
=cut
# delete this once the above works properly (same test)
my @want = (
qr/A DBIx::Class::Storage::TxnScopeGuard went out of scope without explicit commit or error. Rolling back./,
qr/\*+ ROLLBACK FAILED\!\!\! \*+/,
);
my @w;
local $SIG{__WARN__} = sub {
if (grep {$_[0] =~ $_} (@want)) {
push @w, $_[0];
}
else {
warn $_[0];
}
};
{
eval { die 'pre-GIFT!' if $pre_poison };
my $guard = $schema->txn_scope_guard;
eval { die 'post-GIFT!' if $post_poison };
$schema->resultset ('Artist')->create ({ name => 'bohhoo'});
}
local $TODO = 'Do not know how to deal with trapped exceptions occuring after guard instantiation...'
if ( $post_poison and (
# take no chances on installation
( DBICTest::RunMode->is_plain and ($ENV{TRAVIS}||'') ne 'true' )
or
# this always fails
! $pre_poison
or
# I do not understand why but on <= 5.8.8 and on 5.10.0 "$pre_poison && $post_poison" passes...
($] > 5.008008 and $] < 5.010000 ) or $] > 5.010000
));
is (@w, 2, "Both expected warnings found - \$\@ pre-poison: $pre_poison, post-poison: $post_poison" );
# just to mask off warning since we could not disconnect above
$schema->storage->_dbh->disconnect;
}}
# add a TODO to catch when Text::Balanced is finally fixed
# https://rt.cpan.org/Public/Bug/Display.html?id=74994
#
# while it doesn't matter much for DBIC itself, this particular bug
# is a *BANE*, and DBIC is to bump its dep as soon as possible
{
require Text::Balanced;
my @w;
local $SIG{__WARN__} = sub {
$_[0] =~ /External exception class .+? \Qimplements partial (broken) overloading/
? push @w, @_
: warn @_
};
lives_ok {
# this is what poisons $@
Text::Balanced::extract_bracketed( '(foo', '()' );
my $s = DBICTest::Schema->connect('dbi:SQLite::memory:');
my $g = $s->txn_scope_guard;
$g->commit;
} 'Broken Text::Balanced is not screwing up txn_guard';
local $TODO = 'RT#74994 *STILL* not fixed';
is(scalar @w, 0, 'no warnings \o/');
}
# ensure Devel::StackTrace-refcapture-like effects are countered
{
my $s = DBICTest::Schema->connect('dbi:SQLite::memory:');
my $g = $s->txn_scope_guard;
my @arg_capture;
{
local $SIG{__WARN__} = sub {
package DB;
my $frnum;
while (my @f = caller(++$frnum) ) {
push @arg_capture, @DB::args;
}
};
undef $g;
1;
}
warnings_exist
{ @arg_capture = () }
qr/\QPreventing *MULTIPLE* DESTROY() invocations on DBIx::Class::Storage::TxnScopeGuard/
;
}
done_testing;