use strict;
use warnings;
use lib qw(t/lib);
+use Test::More;
+use Data::Dump qw/dump/;
-use File::Copy;
+BEGIN {
+ eval "use Moose";
+ plan $@
+ ? ( skip_all => 'needs Moose for testing' )
+ : ( tests => 33 );
+}
-use DBICTest;
+use_ok 'DBIx::Class::Storage::DBI::Replicated::Pool';
+use_ok 'DBIx::Class::Storage::DBI::Replicated::Balancer';
+use_ok 'DBIx::Class::Storage::DBI::Replicated::Replicant';
+use_ok 'DBIx::Class::Storage::DBI::Replicated';
-use Test::More;
-plan tests => 1;
+## ----------------------------------------------------------------------------
+## Build a class to hold all our required testing data and methods.
+## ----------------------------------------------------------------------------
+
+TESTSCHEMACLASS: {
+
+ package DBIx::Class::DBI::Replicated::TestReplication;
+
+ use DBICTest;
+ use File::Copy;
+ use Data::Dump qw/dump/;
+
+ use base qw/Class::Accessor::Fast/;
+
+ __PACKAGE__->mk_accessors( qw/schema master_path slave_paths/ );
+
+ ## Initialize the object
+
+ sub new {
+ my $class = shift @_;
+ my $self = $class->SUPER::new(@_);
+
+ $self->schema( $self->init_schema );
+ $self->master_path("t/var/DBIxClass.db");
+
+ return $self;
+ }
+
+ ## Get the Schema and set the replication storage type
+
+ sub init_schema {
+ my $class = shift @_;
+ my $schema = DBICTest->init_schema(storage_type=>'::DBI::Replicated');
+ return $schema;
+ }
+
+ ## Return an Array of ArrayRefs where each ArrayRef is suitable to use for
+ ## $storage->connect_info to be used for connecting replicants.
+
+ sub generate_replicant_connect_info {
+ my $self = shift @_;
+ my @dsn = map {
+ "dbi:SQLite:${_}";
+ } @{$self->slave_paths};
+
+ return map { [$_,'','',{}] } @dsn;
+ }
+
+ ## Do a 'good enough' replication by copying the master dbfile over each of
+ ## the slave dbfiles. If the master is SQLite we do this, otherwise we
+ ## just do a one second pause to let the slaves catch up.
+
+ sub replicate {
+ my $self = shift @_;
+ foreach my $slave (@{$self->slave_paths}) {
+ copy($self->master_path, $slave);
+ }
+ }
+
+ ## Cleanup after ourselves. Unlink all gthe slave paths.
+
+ sub cleanup {
+ my $self = shift @_;
+ foreach my $slave (@{$self->slave_paths}) {
+ unlink $slave;
+ }
+ }
+}
+
+## ----------------------------------------------------------------------------
+## Create an object and run some tests
+## ----------------------------------------------------------------------------
+
+## Thi first bunch of tests are basic, just make sure all the bits are behaving
+
+ok my $replicated = DBIx::Class::DBI::Replicated::TestReplication
+ ->new({
+ slave_paths=>[
+ "t/var/DBIxClass_slave1.db",
+ "t/var/DBIxClass_slave2.db",
+ ],
+ }) => 'Created a replication object';
+
+isa_ok $replicated->schema
+ => 'DBIx::Class::Schema';
+
+isa_ok $replicated->schema->storage
+ => 'DBIx::Class::Storage::DBI::Replicated';
+
+ok $replicated->schema->storage->meta
+ => 'has a meta object';
+
+isa_ok $replicated->schema->storage->master
+ => 'DBIx::Class::Storage::DBI';
+
+isa_ok $replicated->schema->storage->pool
+ => 'DBIx::Class::Storage::DBI::Replicated::Pool';
+
+isa_ok $replicated->schema->storage->balancer
+ => 'DBIx::Class::Storage::DBI::Replicated::Balancer';
+
+ok my @replicant_connects = $replicated->generate_replicant_connect_info
+ => 'got replication connect information';
+
+ok my @replicated_storages = $replicated->schema->storage->connect_replicants(@replicant_connects)
+ => 'Created some storages suitable for replicants';
+
+isa_ok $replicated->schema->storage->current_replicant
+ => 'DBIx::Class::Storage::DBI';
+
+ok $replicated->schema->storage->pool->has_replicants
+ => 'does have replicants';
+
+is $replicated->schema->storage->num_replicants => 2
+ => 'has two replicants';
+
+isa_ok $replicated_storages[0]
+ => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
+
+isa_ok $replicated_storages[1]
+ => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
+
+isa_ok $replicated->schema->storage->replicants->{"t/var/DBIxClass_slave1.db"}
+ => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
+
+isa_ok $replicated->schema->storage->replicants->{"t/var/DBIxClass_slave2.db"}
+ => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
+
+## Add some info to the database
+
+$replicated
+ ->schema
+ ->populate('Artist', [
+ [ qw/artistid name/ ],
+ [ 4, "Ozric Tentacles"],
+ ]);
+
+## Make sure all the slaves have the table definitions
+
+$replicated->replicate;
+
+## Make sure we can read the data.
+
+ok my $artist1 = $replicated->schema->resultset('Artist')->find(4)
+ => 'Created Result';
+
+isa_ok $artist1
+ => 'DBICTest::Artist';
+
+is $artist1->name, 'Ozric Tentacles'
+ => 'Found expected name for first result';
+
+## Add some new rows that only the master will have This is because
+## we overload any type of write operation so that is must hit the master
+## database.
+
+$replicated
+ ->schema
+ ->populate('Artist', [
+ [ qw/artistid name/ ],
+ [ 5, "Doom's Children"],
+ [ 6, "Dead On Arrival"],
+ [ 7, "Watergate"],
+ ]);
+
+## Alright, the database 'cluster' is not in a consistent state. When we do
+## a read now we expect bad news
+
+is $replicated->schema->resultset('Artist')->find(5), undef
+ => 'read after disconnect fails because it uses a replicant which we have neglected to "replicate" yet';
+
+## Make sure all the slaves have the table definitions
+$replicated->replicate;
+
+## Should find some data now
+
+ok my $artist2 = $replicated->schema->resultset('Artist')->find(5)
+ => 'Sync succeed';
+
+isa_ok $artist2
+ => 'DBICTest::Artist';
+
+is $artist2->name, "Doom's Children"
+ => 'Found expected name for first result';
+
+## What happens when we disconnect all the replicants?
+
+is $replicated->schema->storage->pool->connected_replicants => 2
+ => "both replicants are connected";
+
+$replicated->schema->storage->replicants->{"t/var/DBIxClass_slave1.db"}->disconnect;
+$replicated->schema->storage->replicants->{"t/var/DBIxClass_slave2.db"}->disconnect;
-my $schema = DBICTest->init_schema();
+is $replicated->schema->storage->pool->connected_replicants => 0
+ => "both replicants are now disconnected";
-$schema->storage_type( '::DBI::Replication' );
+## All these should pass, since the database should automatically reconnect
+ok my $artist3 = $replicated->schema->resultset('Artist')->find(6)
+ => 'Still finding stuff.';
+
+isa_ok $artist3
+ => 'DBICTest::Artist';
+
+is $artist3->name, "Dead On Arrival"
+ => 'Found expected name for first result';
-my $db_file1 = "t/var/DBIxClass.db";
-my $db_file2 = "t/var/DBIxClass_slave1.db";
-my $db_file3 = "t/var/DBIxClass_slave2.db";
-my $dsn1 = $ENV{"DBICTEST_DSN"} || "dbi:SQLite:${db_file1}";
-my $dsn2 = $ENV{"DBICTEST_DSN2"} || "dbi:SQLite:${db_file2}";
-my $dsn3 = $ENV{"DBICTEST_DSN3"} || "dbi:SQLite:${db_file3}";
+is $replicated->schema->storage->pool->connected_replicants => 1
+ => "One replicant reconnected to handle the job";
-$schema->connect( [
- [ $dsn1, '', '', { AutoCommit => 1 } ],
- [ $dsn2, '', '', { priority => 10 } ],
- [ $dsn3, '', '', { priority => 10 } ]
- ]
- );
+## Delete the old database files
+$replicated->cleanup;
-$schema->populate('Artist', [
- [ qw/artistid name/ ],
- [ 4, 'Ozric Tentacles']
- ]);
-# try and read (should fail)
-my $new_artist = $schema->resultset('Artist')->find(4);
-warn "artist : $new_artist\n";
-# try and read (should succede after faked synchronisation)
-copy($db_file1, $db_file2);
-unlink $db_file2;
-ok(1,"These aren't the tests you're looking for");
projects / dbsrgits/DBIx-Class.git / blobdiff