use strict;
use warnings;
use lib qw(t/lib);
+use Test::More;
+use Data::Dump qw/dump/;
+
+BEGIN {
+ eval "use Moose";
+ plan $@
+ ? ( skip_all => 'needs Moose for testing' )
+ : ( tests => 30 );
+}
+
+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';
+
+## ----------------------------------------------------------------------------
+## 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 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.
+
+ 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->create_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 $artist2->name, "Doom's Children"
+ => 'Found expected name for first result';
+
+## What happens when we disconnect all the replicants?
+
+$replicated->schema->storage->replicants->{"t/var/DBIxClass_slave1.db"}->disconnect;
+$replicated->schema->storage->replicants->{"t/var/DBIxClass_slave2.db"}->disconnect;
+
+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';
+
+
+__END__
+
+## ----------------------------------------------------------------------------
+## Build a class to hold all our required testing data and methods.
+## ----------------------------------------------------------------------------
+
+TESTSCHEMACLASS: {
+
+ package DBIx::Class::DBI::Replicated::TestReplication;
+
+ use DBI;
+ use DBICTest;
+ use File::Copy;
+
+ ## Create a constructor
+
+ sub new {
+ my $class = shift @_;
+ my %params = @_;
+
+ my $self = bless {
+ db_paths => $params{db_paths},
+ dsns => $class->init_dsns(%params),
+ schema=>$class->init_schema,
+ }, $class;
+
+ $self->connect;
+ return $self;
+ }
+
+ ## get the DSNs. We build this up from the list of file paths
+
+ sub init_dsns {
+ my $class = shift @_;
+ my %params = @_;
+ my $db_paths = $params{db_paths};
+
+ my @dsn = map {
+ "dbi:SQLite:${_}";
+ } @$db_paths;
+
+ return \@dsn;
+ }
+
+ ## get the Schema and set the replication storage type
+
+ sub init_schema {
+ my $class = shift @_;
+ my $schema = DBICTest->init_schema();
+ $schema->storage_type( '::DBI::Replicated' );
+
+ return $schema;
+ }
+
+ ## connect the Schema
+
+ sub connect {
+ my $self = shift @_;
+ my ($master, @slaves) = @{$self->{dsns}};
+ my $master_connect_info = [$master, '','', {AutoCommit=>1, PrintError=>0}];
+
+ my @slavesob;
+ foreach my $slave (@slaves)
+ {
+ my $dbh = shift @{$self->{slaves}}
+ || DBI->connect($slave,"","",{PrintError=>0, PrintWarn=>0});
+
+ push @{$master_connect_info->[-1]->{slaves_connect_info}},
+ [$dbh, '','',{priority=>10}];
+
+ push @slavesob,
+ $dbh;
+ }
+
+ ## Keep track of the created slave databases
+ $self->{slaves} = \@slavesob;
+
+ $self
+ ->{schema}
+ ->connect(@$master_connect_info);
+ }
+
+ ## replication
+
+ sub replicate {
+ my $self = shift @_;
+ my ($master, @slaves) = @{$self->{db_paths}};
+
+ foreach my $slave (@slaves) {
+ copy($master, $slave);
+ }
+ }
+
+ ## Cleanup afer ourselves.
+
+ sub cleanup {
+ my $self = shift @_;
+ my ($master, @slaves) = @{$self->{db_paths}};
+
+ foreach my $slave (@slaves) {
+ unlink $slave;
+ }
+ }
+
+ ## Force a reconnection
+
+ sub reconnect {
+ my $self = shift @_;
+ my $schema = $self->connect;
+ $self->{schema} = $schema;
+ return $schema;
+ }
+}
+
+## ----------------------------------------------------------------------------
+## Create an object and run some tests
+## ----------------------------------------------------------------------------
+
+my %params = (
+ db_paths => [
+ "t/var/DBIxClass.db",
+ "t/var/DBIxClass_slave1.db",
+ "t/var/DBIxClass_slave2.db",
+ ],
+);
+
+ok my $replicate = DBIx::Class::DBI::Replicated::TestReplication->new(%params)
+ => 'Created a replication object';
+
+isa_ok $replicate->{schema}
+ => 'DBIx::Class::Schema';
+
+## Add some info to the database
+
+$replicate
+ ->{schema}
+ ->populate('Artist', [
+ [ qw/artistid name/ ],
+ [ 4, "Ozric Tentacles"],
+ ]);
+
+## Make sure all the slaves have the table definitions
+
+$replicate->replicate;
+
+## Make sure we can read the data.
+
+ok my $artist1 = $replicate->{schema}->resultset('Artist')->find(4)
+ => 'Created Result';
+
+isa_ok $artist1
+ => 'DBICTest::Artist';
+
+is $artist1->name, 'Ozric Tentacles'
+ => 'Found expected name for first result';
+
+## Add some new rows that only the master will have This is because
+## we overload any type of write operation so that is must hit the master
+## database.
+
+$replicate
+ ->{schema}
+ ->populate('Artist', [
+ [ qw/artistid name/ ],
+ [ 5, "Doom's Children"],
+ [ 6, "Dead On Arrival"],
+ [ 7, "Watergate"],
+ ]);
+
+## Reconnect the database
+$replicate->reconnect;
+
+## Alright, the database 'cluster' is not in a consistent state. When we do
+## a read now we expect bad news
+
+is $replicate->{schema}->resultset('Artist')->find(5), undef
+ => 'read after disconnect fails because it uses slave 1 which we have neglected to "replicate" yet';
+
+## Make sure all the slaves have the table definitions
+$replicate->replicate;
+
+## Should find some data now
+
+ok my $artist2 = $replicate->{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 delete one of the slaves?
+
+ok my $slave1 = @{$replicate->{slaves}}[0]
+ => 'Got Slave1';
+
+ok $slave1->disconnect
+ => 'disconnected slave1';
+
+$replicate->reconnect;
+
+ok my $artist3 = $replicate->{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';
+
+## Let's delete all the slaves
+
+ok my $slave2 = @{$replicate->{slaves}}[1]
+ => 'Got Slave2';
+
+ok $slave2->disconnect
+ => 'Disconnected slave2';
+
+$replicate->reconnect;
+
+## We expect an error now, since all the slaves are dead
+
+eval {
+ $replicate->{schema}->resultset('Artist')->find(4)->name;
+};
+
+ok $@ => 'Got error when trying to find artistid 4';
+
+## This should also be an error
+
+eval {
+ my $artist4 = $replicate->{schema}->resultset('Artist')->find(7);
+};
+
+ok $@ => 'Got read errors after everything failed';
+
+## make sure ->connect_info returns something sane
+
+ok $replicate->{schema}->storage->connect_info
+ => 'got something out of ->connect_info';
+
+## Force a connection to the write source for testing.
+
+$replicate->{schema}->storage($replicate->{schema}->storage->write_source);
+
+## What happens when we do a find for something that doesn't exist?
+
+ok ! $replicate->{schema}->resultset('Artist')->find(666)
+ => 'Correctly did not find a bad artist id';
+
+## Delete the old database files
+$replicate->cleanup;
+
+
+
-use File::Copy;
-use DBICTest;
-use Test::More;
-eval {use DBD::Multi};
-plan skip_all => 'No DBD::Multi' if ($@);
-
-plan tests => 3;
-
-my $schema = DBICTest->init_schema();
-
-$schema->storage_type( '::DBI::Replication' );
-
-
-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}";
-
-$schema->connect( [
- [ $dsn1, '', '', { AutoCommit => 1 } ],
- [ $dsn2, '', '', { priority => 10 } ],
- [ $dsn3, '', '', { priority => 10 } ]
- ]
- );
-
-$schema->populate('Artist', [
- [ qw/artistid name/ ],
- [ 4, 'Ozric Tentacles']
- ]);
-
-my $new_artist1 = $schema->resultset('Artist')->find(4);
-
-isa_ok ($new_artist1, 'DBICTest::Artist');
-
-# reconnect
-my $schema2 = $schema->connect( [
- [ $dsn1, '', '', { AutoCommit => 1 } ],
- [ $dsn2, '', '', { priority => 10 } ],
- [ $dsn3, '', '', { priority => 10 } ]
- ]
- );
-
-# try and read (should fail)
-eval { my $new_artist2 = $schema2->resultset('Artist')->find(4); };
-ok($@, 'read after disconnect fails because it uses slave 1 which we have neglected to "replicate" yet');
-
-# try and read (should succede after faked synchronisation)
-copy($db_file1, $db_file2);
-$schema2 = $schema->connect( [
- [ $dsn1, '', '', { AutoCommit => 1 } ],
- [ $dsn2, '', '', { priority => 10 } ],
- [ $dsn3, '', '', { priority => 10 } ]
- ]
- );
-my $new_artist3 = $schema2->resultset('Artist')->find(4);
-isa_ok ($new_artist3, 'DBICTest::Artist');
-
-unlink $db_file2;
projects / dbsrgits/DBIx-Class.git / blobdiff