diff --git a/lib/Alchemy/Phrasea/Setup/Version/Migration/Migration31.php b/lib/Alchemy/Phrasea/Setup/Version/Migration/Migration31.php
index ee0fbaf845..0ef523e973 100644
--- a/lib/Alchemy/Phrasea/Setup/Version/Migration/Migration31.php
+++ b/lib/Alchemy/Phrasea/Setup/Version/Migration/Migration31.php
@@ -103,12 +103,12 @@ class Migration31 implements MigrationInterface
                         $val = serialize($val);
                         break;
                     case \registry::TYPE_INTEGER:
+                        $val = (int) $val;
                         break;
                     case \registry::TYPE_BOOLEAN:
                         $val = $val ? '1' : '0';
                         break;
                     case \registry::TYPE_STRING:
-                        $val = (int) $val;
                     default:
                         $val = (string) $val;
                         $type = \registry::TYPE_STRING;
diff --git a/lib/classes/ACL.class.php b/lib/classes/ACL.class.php
index c79f677c1d..723f82d2bd 100644
--- a/lib/classes/ACL.class.php
+++ b/lib/classes/ACL.class.php
@@ -665,8 +665,9 @@ class ACL implements cache_cacheableInterface
             foreach ($databox->get_collections() as $collection) {
                 $continue = false;
 
-                if (!array_key_exists($collection->get_base_id(), $this->_rights_bas))
+                if (!array_key_exists($collection->get_base_id(), $this->_rights_bas)) {
                     continue;
+                }
 
                 $base_id = $collection->get_base_id();
                 $datas = $this->_rights_bas[$base_id];
@@ -677,12 +678,13 @@ class ACL implements cache_cacheableInterface
                         break;
                     }
                 }
-                if ($continue || $this->is_limited($base_id))
+                if ($continue || $this->is_limited($base_id)) {
                     continue;
+                }
 
                 try {
                     $ret[$base_id] = collection::get_from_base_id($this->app, $base_id);
-                } catch (Exception $e) {
+                } catch (\Exception $e) {
 
                 }
             }
@@ -823,7 +825,7 @@ class ACL implements cache_cacheableInterface
             FROM usr WHERE usr_id = :usr_id';
 
         $stmt = $this->app['phraseanet.appbox']->get_connection()->prepare($sql);
-        $stmt->execute(array(':usr_id' => $this->user->get_id()));
+        $stmt->execute(array(':usr_id'       => $this->user->get_id()));
         $row = $stmt->fetch(PDO::FETCH_ASSOC);
         $stmt->closeCursor();
         unset($stmt);
diff --git a/lib/classes/User/Adapter.class.php b/lib/classes/User/Adapter.class.php
index 25f3dd5e2f..3fe3f47b67 100644
--- a/lib/classes/User/Adapter.class.php
+++ b/lib/classes/User/Adapter.class.php
@@ -322,6 +322,21 @@ class User_Adapter implements User_Interface, cache_cacheableInterface
         return $this;
     }
 
+    public static function unsetInstances()
+    {
+        foreach (self::$_instance as $id => $user) {
+            self::unsetInstance($id);
+        }
+    }
+
+    public static function unsetInstance($id)
+    {
+        if (isset(self::$_instance[$id])) {
+            self::$_instance[$id] = null;
+            unset(self::$_instance[$id]);
+        }
+    }
+
     /**
      *
      * @param  type         $id
diff --git a/lib/classes/User/Query.class.php b/lib/classes/User/Query.class.php
index b42f35fa5a..2a8f102032 100644
--- a/lib/classes/User/Query.class.php
+++ b/lib/classes/User/Query.class.php
@@ -542,7 +542,7 @@ class User_Query implements User_QueryInterface
 
         $sql_count = 'SELECT COUNT(DISTINCT usr.usr_id) as total '
             . $this->generate_sql_constraints();
-        
+
         $stmt = $conn->prepare($sql_count);
         $stmt->execute($this->sql_params);
         $row = $stmt->fetch(PDO::FETCH_ASSOC);
diff --git a/lib/classes/record/adapter.class.php b/lib/classes/record/adapter.class.php
index d6c9377c42..98a1c10969 100644
--- a/lib/classes/record/adapter.class.php
+++ b/lib/classes/record/adapter.class.php
@@ -1617,7 +1617,7 @@ class record_adapter implements record_Interface, cache_cacheableInterface
                 }
                 $sphinx_rt->delete(array("documents" . $sbas_crc, "documents" . $sbas_crc . "_stemmed_fr", "documents" . $sbas_crc . "_stemmed_en"), "docs_realtime" . $sbas_crc, $this->get_record_id());
             }
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             unset($e);
         }
 
diff --git a/lib/classes/registry.class.php b/lib/classes/registry.class.php
index ff26c49049..a745f892d5 100644
--- a/lib/classes/registry.class.php
+++ b/lib/classes/registry.class.php
@@ -25,11 +25,6 @@ class registry implements registryInterface
      */
     protected $cache;
 
-    /**
-     *
-     * @var registry
-     */
-    protected static $_instance;
     protected $app;
 
     const TYPE_BOOLEAN = 'boolean';
diff --git a/lib/classes/sphinxrt.class.php b/lib/classes/sphinxrt.class.php
index 02be0072d0..f05d9e9b3f 100644
--- a/lib/classes/sphinxrt.class.php
+++ b/lib/classes/sphinxrt.class.php
@@ -24,12 +24,17 @@ class sphinxrt
     protected function __construct(registry $registry)
     {
         $this->registry = $registry;
+
+        if(!$registry->get('GV_sphinx') || !$registry->get('GV_sphinx_rt_host') || !$registry->get('GV_sphinx_rt_port')) {
+            throw new \Exception('Sphinx not configured');
+        }
+
         try {
             $dsn = sprintf('mysql:host=%s;port=%s;', $registry->get('GV_sphinx_rt_host'), $registry->get('GV_sphinx_rt_port'));
             $this->connection = @new PDO($dsn);
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             self::$_failure = true;
-            throw new Exception('Unable to connect to sphinx rt');
+            throw new \Exception('Unable to connect to sphinx rt');
         }
 
         return $this;
diff --git a/tests/Alchemy/Phrasea/Setup/InstallerTest.php b/tests/Alchemy/Phrasea/Setup/InstallerTest.php
index d219020f24..0c02e390d4 100644
--- a/tests/Alchemy/Phrasea/Setup/InstallerTest.php
+++ b/tests/Alchemy/Phrasea/Setup/InstallerTest.php
@@ -27,7 +27,10 @@ class InstallerTest extends \PHPUnit_Framework_TestCase
 
     public static function tearDownAfterClass()
     {
+        $app = new Application('test');
         \connection::close_connections();
+        \phrasea::reset_sbasDatas($app['phraseanet.appbox']);
+        \phrasea::reset_baseDatas($app['phraseanet.appbox']);
         parent::tearDownAfterClass();
     }
 
@@ -54,6 +57,8 @@ class InstallerTest extends \PHPUnit_Framework_TestCase
         $installer = new Installer($app, 'admin@example.com', 'sdfsdsd', $abConn, 'http://local.phrasea.test.installer/', $dataPath, $dbConn, $template);
         $installer->install();
 
+        \User_Adapter::unsetInstances();
+
         $this->assertTrue($specifications->isSetup());
         $this->assertTrue($app['phraseanet.configuration-tester']->isUpToDate());
     }