Add comprehensive concurrent-test-locking logging to aid future debugging

[dbsrgits/DBIx-Class.git] / t / lib / DBICTest.pm

diff --git a/t/lib/DBICTest.pm b/t/lib/DBICTest.pm
index a3b5f2f..6da2f7e 100644 (file)
--- a/t/lib/DBICTest.pm
+++ b/t/lib/DBICTest.pm
@@ -4,7 +4,7 @@ package # hide from PAUSE
 use strict;
 use warnings;
 
-use DBICTest::Util 'local_umask';
+use DBICTest::Util qw( local_umask dbg DEBUG_TEST_CONCURRENCY_LOCKS );
 use DBICTest::Schema;
 use DBICTest::Util::LeakTracer qw/populate_weakregistry assert_empty_weakregistry/;
 use DBIx::Class::_Util 'detected_reinvoked_destructor';
@@ -13,6 +13,7 @@ use Path::Class::File ();
 use File::Spec;
 use Fcntl qw/:DEFAULT :flock/;
 use Config;
+use Scope::Guard ();
 
 =head1 NAME
 
@@ -90,7 +91,14 @@ sub import {
 
     for my $exp (@_) {
         if ($exp eq ':GlobalLock') {
+            DEBUG_TEST_CONCURRENCY_LOCKS > 1
+              and dbg "Waiting for EXCLUSIVE global lock...";
+
             flock ($global_lock_fh, LOCK_EX) or die "Unable to lock $lockpath: $!";
+
+            DEBUG_TEST_CONCURRENCY_LOCKS > 1
+              and dbg "Got EXCLUSIVE global lock";
+
             $global_exclusive_lock = 1;
         }
         elsif ($exp eq ':DiffSQL') {
@@ -107,13 +115,22 @@ sub import {
     }
 
     unless ($global_exclusive_lock) {
+        DEBUG_TEST_CONCURRENCY_LOCKS > 1
+          and dbg "Waiting for SHARED global lock...";
+
         flock ($global_lock_fh, LOCK_SH) or die "Unable to lock $lockpath: $!";
+
+        DEBUG_TEST_CONCURRENCY_LOCKS > 1
+          and dbg "Got SHARED global lock";
     }
 }
 
 END {
+    # referencing here delays destruction even more
     if ($global_lock_fh) {
-        # delay destruction even more
+      DEBUG_TEST_CONCURRENCY_LOCKS > 1
+        and dbg "Release @{[ $global_exclusive_lock ? 'EXCLUSIVE' : 'SHARED' ]} global lock (END)";
+      1;
     }
 }
 
@@ -143,6 +160,7 @@ END {
 
 $SIG{INT} = sub { _cleanup_dbfile(); exit 1 };
 
+my $need_global_cleanup;
 sub _cleanup_dbfile {
     # cleanup if this is us
     if (
@@ -152,6 +170,10 @@ sub _cleanup_dbfile {
         or
       $ENV{DBICTEST_LOCK_HOLDER} == $$
     ) {
+        if ($need_global_cleanup and my $dbh = DBICTest->schema->storage->_dbh) {
+          $dbh->disconnect;
+        }
+
         my $db_file = _sqlite_dbfilename();
         unlink $_ for ($db_file, "${db_file}-journal");
     }
@@ -214,7 +236,7 @@ sub _database {
         # set a *DBI* disconnect callback, to make sure the physical SQLite
         # file is still there (i.e. the test does not attempt to delete
         # an open database, which fails on Win32)
-        if (my $guard_cb = __mk_disconnect_guard($db_file)) {
+        if (! $storage->{master} and my $guard_cb = __mk_disconnect_guard($db_file)) {
           $dbh->{Callbacks} = {
             connect => sub { $guard_cb->('connect') },
             disconnect => sub { $guard_cb->('disconnect') },
@@ -315,9 +337,20 @@ sub init_schema {
 
     my $schema;
 
+    if (
+      $ENV{DBICTEST_VIA_REPLICATED} &&=
+        ( !$args{storage_type} && !defined $args{sqlite_use_file} )
+    ) {
+      $args{storage_type} = ['::DBI::Replicated', { balancer_type => '::Random' }];
+      $args{sqlite_use_file} = 1;
+    }
+
+    my @dsn = $self->_database(%args);
+
     if ($args{compose_connection}) {
+      $need_global_cleanup = 1;
       $schema = DBICTest::Schema->compose_connection(
-                  'DBICTest', $self->_database(%args)
+                  'DBICTest', @dsn
                 );
     } else {
       $schema = DBICTest::Schema->compose_namespace('DBICTest');
@@ -328,7 +361,10 @@ sub init_schema {
     }
 
     if ( !$args{no_connect} ) {
-      $schema = $schema->connect($self->_database(%args));
+      $schema->connection(@dsn);
+
+      $schema->storage->connect_replicants(\@dsn)
+        if $ENV{DBICTEST_VIA_REPLICATED};
     }
 
     if ( !$args{no_deploy} ) {
@@ -367,8 +403,11 @@ sub deploy_schema {
     my $schema = shift;
     my $args = shift || {};
 
-    local $schema->storage->{debug}
-      if ($ENV{TRAVIS}||'') eq 'true';
+    my $guard;
+    if ( ($ENV{TRAVIS}||'') eq 'true' and my $old_dbg = $schema->storage->debug ) {
+      $guard = Scope::Guard->new(sub { $schema->storage->debug($old_dbg) });
+      $schema->storage->debug(0);
+    }
 
     if ($ENV{"DBICTEST_SQLT_DEPLOY"}) {
         $schema->deploy($args);
@@ -398,8 +437,11 @@ sub populate_schema {
     my $self = shift;
     my $schema = shift;
 
-    local $schema->storage->{debug}
-      if ($ENV{TRAVIS}||'') eq 'true';
+    my $guard;
+    if ( ($ENV{TRAVIS}||'') eq 'true' and my $old_dbg = $schema->storage->debug ) {
+      $guard = Scope::Guard->new(sub { $schema->storage->debug($old_dbg) });
+      $schema->storage->debug(0);
+    }
 
     $schema->populate('Genre', [
       [qw/genreid name/],