discard changes now is forced to use master for replication. changed discard_changes...
[dbsrgits/DBIx-Class.git] / t / 93storage_replication.t
index 26f6039..b2b3732 100644 (file)
@@ -2,13 +2,14 @@ use strict;
 use warnings;
 use lib qw(t/lib);
 use Test::More;
+use Test::Exception;
 use DBICTest;
 
 BEGIN {
-    eval "use Moose";
+    eval "use Moose; use Test::Moose";
     plan $@
         ? ( skip_all => 'needs Moose for testing' )
-        : ( tests => 40 );
+        : ( tests => 71 );
 }
 
 use_ok 'DBIx::Class::Storage::DBI::Replicated::Pool';
@@ -61,11 +62,14 @@ TESTSCHEMACLASSES: {
         my $class = shift @_;
         
         my $schema = DBICTest->init_schema(
-            storage_type=>[
+            storage_type=>{
                '::DBI::Replicated' => {
                        balancer_type=>'::Random',
+                    balancer_args=>{
+                       auto_validate_every=>100,
+                    },
                }
-            ],
+            },
             deploy_args=>{
                    add_drop_table => 1,
             },
@@ -195,7 +199,7 @@ isa_ok $replicated->schema->storage->master
 isa_ok $replicated->schema->storage->pool
     => 'DBIx::Class::Storage::DBI::Replicated::Pool';
     
-isa_ok $replicated->schema->storage->balancer
+does_ok $replicated->schema->storage->balancer
     => 'DBIx::Class::Storage::DBI::Replicated::Balancer'; 
 
 ok my @replicant_connects = $replicated->generate_replicant_connect_info
@@ -210,21 +214,21 @@ isa_ok $replicated->schema->storage->balancer->current_replicant
 ok $replicated->schema->storage->pool->has_replicants
     => 'does have replicants';     
 
-is $replicated->schema->storage->num_replicants => 2
+is $replicated->schema->storage->pool->num_replicants => 2
     => 'has two replicants';
        
-isa_ok $replicated_storages[0]
+does_ok $replicated_storages[0]
     => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
 
-isa_ok $replicated_storages[1]
+does_ok $replicated_storages[1]
     => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
     
 my @replicant_names = keys %{$replicated->schema->storage->replicants};
-    
-isa_ok $replicated->schema->storage->replicants->{$replicant_names[0]}
+
+does_ok $replicated->schema->storage->replicants->{$replicant_names[0]}
     => 'DBIx::Class::Storage::DBI::Replicated::Replicant';
 
-isa_ok $replicated->schema->storage->replicants->{$replicant_names[1]}
+does_ok $replicated->schema->storage->replicants->{$replicant_names[1]}
     => 'DBIx::Class::Storage::DBI::Replicated::Replicant';  
 
 ## Add some info to the database
@@ -355,8 +359,178 @@ $replicated->schema->storage->replicants->{$replicant_names[0]}->active(0);
 $replicated->schema->storage->replicants->{$replicant_names[1]}->active(0);
     
 ok $replicated->schema->resultset('Artist')->find(2)
-    => 'Fallback to master'; 
-       
+    => 'Fallback to master';
+
+$replicated->schema->storage->replicants->{$replicant_names[0]}->active(1);
+$replicated->schema->storage->replicants->{$replicant_names[1]}->active(1);
+
+ok $replicated->schema->resultset('Artist')->find(2)
+    => 'Returned to replicates';
+    
+## Getting slave status tests
+
+SKIP: {
+    ## We skip this tests unless you have a custom replicants, since the default
+    ## sqlite based replication tests don't support these functions.
+    
+    skip 'Cannot Test Replicant Status on Non Replicating Database', 9
+     unless DBICTest->has_custom_dsn && $ENV{"DBICTEST_SLAVE0_DSN"};
+
+    $replicated->replicate; ## Give the slaves a chance to catchup.
+
+       ok $replicated->schema->storage->replicants->{$replicant_names[0]}->is_replicating
+           => 'Replicants are replicating';
+           
+       is $replicated->schema->storage->replicants->{$replicant_names[0]}->lag_behind_master, 0
+           => 'Replicant is zero seconds behind master';
+           
+       ## Test the validate replicants
+       
+       $replicated->schema->storage->pool->validate_replicants;
+       
+       is $replicated->schema->storage->pool->active_replicants, 2
+           => 'Still have 2 replicants after validation';
+           
+       ## Force the replicants to fail the validate test by required their lag to
+       ## be negative (ie ahead of the master!)
+       
+    $replicated->schema->storage->pool->maximum_lag(-10);
+    $replicated->schema->storage->pool->validate_replicants;
+    
+    is $replicated->schema->storage->pool->active_replicants, 0
+        => 'No way a replicant be be ahead of the master';
+        
+    ## Let's be fair to the replicants again.  Let them lag up to 5
+       
+    $replicated->schema->storage->pool->maximum_lag(5);
+    $replicated->schema->storage->pool->validate_replicants;
+    
+    is $replicated->schema->storage->pool->active_replicants, 2
+        => 'Both replicants in good standing again';   
+        
+       ## Check auto validate
+       
+       is $replicated->schema->storage->balancer->auto_validate_every, 100
+           => "Got the expected value for auto validate";
+           
+               ## This will make sure we auto validatge everytime
+               $replicated->schema->storage->balancer->auto_validate_every(0);
+               
+               ## set all the replicants to inactive, and make sure the balancer falls back to
+               ## the master.
+               
+               $replicated->schema->storage->replicants->{$replicant_names[0]}->active(0);
+               $replicated->schema->storage->replicants->{$replicant_names[1]}->active(0);
+               
+               ## Ok, now when we go to run a query, autovalidate SHOULD reconnect
+       
+       is $replicated->schema->storage->pool->active_replicants => 0
+           => "both replicants turned off";
+               
+       ok $replicated->schema->resultset('Artist')->find(5)
+           => 'replicant reactivated';
+           
+       is $replicated->schema->storage->pool->active_replicants => 2
+           => "both replicants reactivated";        
+}
+
+## Test the reliably callback
+
+ok my $reliably = sub {
+       
+    ok $replicated->schema->resultset('Artist')->find(5)
+        => 'replicant reactivated';    
+       
+} => 'created coderef properly';
+
+$replicated->schema->storage->execute_reliably($reliably);
+
+## Try something with an error
+
+ok my $unreliably = sub {
+    
+    ok $replicated->schema->resultset('ArtistXX')->find(5)
+        => 'replicant reactivated'; 
+    
+} => 'created coderef properly';
+
+throws_ok {$replicated->schema->storage->execute_reliably($unreliably)} 
+    qr/Can't find source for ArtistXX/
+    => 'Bad coderef throws proper error';
+    
+## Make sure replication came back
+
+ok $replicated->schema->resultset('Artist')->find(3)
+    => 'replicant reactivated';
+    
+## make sure transactions are set to execute_reliably
+
+ok my $transaction = sub {
+       
+       my $id = shift @_;
+       
+       $replicated
+           ->schema
+           ->populate('Artist', [
+               [ qw/artistid name/ ],
+               [ $id, "Children of the Grave"],
+           ]);
+           
+   ok my $result = $replicated->schema->resultset('Artist')->find($id);
+   ok my $more = $replicated->schema->resultset('Artist')->find(1);
+   
+   return ($result, $more);
+   
+};
+
+## Test the transaction with multi return
+{
+       ok my @return = $replicated->schema->txn_do($transaction, 666)
+           => 'did transaction';
+           
+           is $return[0]->id, 666
+               => 'first returned value is correct';
+               
+           is $return[1]->id, 1
+               => 'second returned value is correct';
+}
+
+## Test that asking for single return works
+{
+       ok my $return = $replicated->schema->txn_do($transaction, 777)
+           => 'did transaction';
+           
+           is $return->id, 777
+               => 'first returned value is correct';
+}
+
+## Test transaction returning a single value
+
+{
+       ok my $result = $replicated->schema->txn_do(sub {
+               ok my $more = $replicated->schema->resultset('Artist')->find(1);
+               return $more;
+       }) => 'successfully processed transaction';
+       
+       is $result->id, 1
+          => 'Got expected single result from transaction';
+}
+
+## Make sure replication came back
+
+ok $replicated->schema->resultset('Artist')->find(1)
+    => 'replicant reactivated';
+    
+## Test Discard changes
+
+{
+       ok my $artist = $replicated->schema->resultset('Artist')->find(2)
+           => 'got an artist to test discard changes';
+           
+       ok $artist->discard_changes
+          => 'properly discard changes';
+}
+        
 ## Delete the old database files
 $replicated->cleanup;