X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2F93storage_replication.t;h=b70e254fa2d6062a13aa493ed6b310e2fdbcaf3a;hb=955a6df69eb864ba348f87f5a06a8b7a68ffc76c;hp=f903ad4d1b6f8c87a1e8dddeeb1132a6dc1aab4c;hpb=e4dc89b33b2390f8baaf4f553074794d257c43d7;p=dbsrgits%2FDBIx-Class.git

diff --git a/t/93storage_replication.t b/t/93storage_replication.t
index f903ad4..b70e254 100644
--- a/t/93storage_replication.t
+++ b/t/93storage_replication.t
@@ -1,46 +1,236 @@
 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");