+use DBIx::Class::Optional::Dependencies -skip_all_without => 'test_rdbms_pg';
+
use strict;
use warnings;
use Test::More;
+use Test::Exception;
-# README: If you set the env var to a number greater than 10,
-# we will use that many children
-
-my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_PG_${_}" } qw/DSN USER PASS/};
-my $num_children = $ENV{DBICTEST_FORK_STRESS};
-
-plan skip_all => 'Set $ENV{DBICTEST_FORK_STRESS} to run this test'
- unless $num_children;
+use lib qw(t/lib);
+use DBICTest;
-plan skip_all => 'Set $ENV{DBICTEST_PG_DSN}, _USER and _PASS to run this test'
- . ' (note: creates and drops a table named artist!)' unless ($dsn && $user);
+my $main_pid = $$;
+# README: If you set the env var to a number greater than 10,
+# we will use that many children
+my $num_children = $ENV{DBICTEST_FORK_STRESS} || 1;
if($num_children !~ /^[0-9]+$/ || $num_children < 10) {
$num_children = 10;
}
-plan tests => $num_children + 5;
-
-use lib qw(t/lib);
-
-use_ok('DBICTest::Schema');
-
-my $schema = DBICTest::Schema->connection($dsn, $user, $pass, { AutoCommit => 1 });
+my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_PG_${_}" } qw/DSN USER PASS/};
+my $schema = DBICTest::Schema->connect($dsn, $user, $pass, { AutoCommit => 1 });
my $parent_rs;
{
local $SIG{__WARN__} = sub {};
eval { $dbh->do("DROP TABLE cd") };
- $dbh->do("CREATE TABLE cd (cdid serial PRIMARY KEY, artist INTEGER NOT NULL UNIQUE, title VARCHAR(255) NOT NULL UNIQUE, year VARCHAR(255));");
+ $dbh->do("CREATE TABLE cd (cdid serial PRIMARY KEY, artist INTEGER NOT NULL UNIQUE, title VARCHAR(100) NOT NULL UNIQUE, year VARCHAR(100) NOT NULL, genreid INTEGER, single_track INTEGER);");
}
$schema->resultset('CD')->create({ title => 'vacation in antarctica', artist => 123, year => 1901 });
$schema->resultset('CD')->create({ title => 'vacation in antarctica part 2', artist => 456, year => 1901 });
$parent_rs = $schema->resultset('CD')->search({ year => 1901 });
- $parent_rs->next;
+ is ($parent_rs->count, 2);
};
ok(!$@) or diag "Creation eval failed: $@";
+# basic tests
+{
+ ok ($schema->storage->connected(), 'Parent is connected');
+ is ($parent_rs->next->id, 1, 'Cursor advanced');
+
+ my ($parent_in, $child_out);
+ pipe( $parent_in, $child_out ) or die "Pipe open failed: $!";
+
+ my $pid = fork;
+ if(!defined $pid) {
+ die "fork failed: $!";
+ }
+
+ if (!$pid) {
+ close $parent_in;
+
+ #simulate a subtest to not confuse the parent TAP emission
+ my $tb = Test::More->builder;
+ $tb->reset;
+ for (qw/output failure_output todo_output/) {
+ close $tb->$_;
+ open ($tb->$_, '>&', $child_out);
+ }
+
+ ok(!$schema->storage->connected, "storage->connected() false in child");
+ for (1,2) {
+ throws_ok { $parent_rs->next } qr/\QMulti-process access attempted while cursor in progress (position 1)/;
+ }
+
+ $parent_rs->reset;
+ is($parent_rs->next->id, 1, 'Resetting cursor reprepares it within child environment');
+
+ done_testing;
+ exit 0;
+ }
+
+ close $child_out;
+ while (my $ln = <$parent_in>) {
+ print " $ln";
+ }
+ waitpid( $pid, 0 );
+ ok(!$?, 'Child subtests passed');
+
+ is ($parent_rs->next->id, 2, 'Cursor still intact in parent');
+ is ($parent_rs->next, undef, 'Cursor exhausted');
+}
+
+$parent_rs->reset;
my @pids;
while(@pids < $num_children) {
$pid = $$;
- my $child_rs = $schema->resultset('CD')->search({ year => 1901 });
- my $row = $parent_rs->next;
- if($row && $row->get_column('artist') =~ /^(?:123|456)$/) {
- $schema->resultset('CD')->create({ title => "test success $pid", artist => $pid, year => scalar(@pids) });
+ my $work = sub {
+ my $child_rs = $schema->resultset('CD')->search({ year => 1901 });
+ my $row = $parent_rs->next;
+ $schema->resultset('CD')->create({ title => "test success $pid", artist => $pid, year => scalar(@pids) })
+ if($row && $row->get_column('artist') =~ /^(?:123|456)$/);
+ };
+
+ # try with and without transactions
+ if ((@pids % 3) == 1) {
+ my $guard = $schema->txn_scope_guard;
+ $work->();
+ $guard->commit;
+ }
+ elsif ((@pids % 3) == 2) {
+ $schema->txn_do ($work);
+ }
+ else {
+ $work->();
}
+
sleep(3);
- exit;
+ exit 0;
}
ok(1, "past forking");
-waitpid($_,0) for(@pids);
+for (@pids) {
+ waitpid($_,0);
+ ok (! $?, "Child $_ exitted cleanly");
+};
ok(1, "past waiting");
ok(1, "Made it to the end");
-$schema->storage->dbh->do("DROP TABLE cd");
+done_testing;
+
+END {
+ $schema->storage->dbh->do("DROP TABLE cd") if ($schema and $main_pid == $$);
+ undef $schema;
+}