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 => 2 );
+}
-use DBICTest;
+## ----------------------------------------------------------------------------
+## Build a class to hold all our required testing data and methods.
+## ----------------------------------------------------------------------------
-use Test::More;
-plan tests => 1;
+TESTSCHEMACLASS: {
+
+ package DBIx::Class::DBI::Replicated::TestReplication;
+
+ use DBICTest;
+ use base qw/Class::Accessor::Fast/;
+
+ __PACKAGE__->mk_accessors( qw/schema/ );
+
+ ## Initialize the object
+
+ sub new {
+ my $proto = shift;
+ my $class = ref( $proto ) || $proto;
+ my $self = {};
+
+ bless( $self, $class );
+
+ $self->schema( $self->init_schema );
+
+ 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;
+ }
+}
+
+## ----------------------------------------------------------------------------
+## 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()
+ => 'Created a replication object';
+
+isa_ok $replicate->schema
+ => 'DBIx::Class::Schema';
+
+
+ warn dump $replicate->schema->storage->meta;
+
+ warn dump $replicate->schema->storage->master;
+
+
+__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';
-my $schema = DBICTest->init_schema();
+## Force a connection to the write source for testing.
-$schema->storage_type( '::DBI::Replication' );
+$replicate->{schema}->storage($replicate->{schema}->storage->write_source);
+## What happens when we do a find for something that doesn't exist?
-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}";
+ok ! $replicate->{schema}->resultset('Artist')->find(666)
+ => 'Correctly did not find a bad artist id';
-$schema->connect( [
- [ $dsn1, '', '', { AutoCommit => 1 } ],
- [ $dsn2, '', '', { priority => 10 } ],
- [ $dsn3, '', '', { priority => 10 } ]
- ]
- );
+## Delete the old database files
+$replicate->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