diff --git a/lib/zerobin/abstract.php b/lib/zerobin/abstract.php
index 89e11503..ad9cfe57 100644
--- a/lib/zerobin/abstract.php
+++ b/lib/zerobin/abstract.php
@@ -22,7 +22,7 @@ abstract class zerobin_abstract
      *
      * @access protected
      * @static
-     * @var zerobin
+     * @var zerobin_abstract
      */
     protected static $_instance = null;
 
diff --git a/lib/zerobin/db.php b/lib/zerobin/db.php
index f9203100..89bedfdd 100644
--- a/lib/zerobin/db.php
+++ b/lib/zerobin/db.php
@@ -166,7 +166,7 @@ class zerobin_db extends zerobin_abstract
                 }
 
                 // create comment table if needed
-                if (!array_key_exists(self::$_prefix . 'comment', $tables))
+                if (!in_array(self::$_prefix . 'comment', $tables))
                 {
                     self::$_db->exec(
                         'CREATE TABLE ' . self::$_prefix . 'comment ( ' .
@@ -182,7 +182,7 @@ class zerobin_db extends zerobin_abstract
             }
         }
 
-        return parent::$_instance;
+        return self::$_instance;
     }
 
     /**
diff --git a/tst/bootstrap.php b/tst/bootstrap.php
index 947bc379..ba73cee1 100644
--- a/tst/bootstrap.php
+++ b/tst/bootstrap.php
@@ -27,9 +27,9 @@ class helper
         'attachment' => '{"iv":"Pd4pOKWkmDTT9uPwVwd5Ag","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"ZIUhFTliVz4","ct":"6nOCU3peNDclDDpFtJEBKA"}',
         'attachmentname' => '{"iv":"76MkAtOGC4oFogX/aSMxRA","v":1,"iter":1000,"ks":128,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"ZIUhFTliVz4","ct":"b6Ae/U1xJdsX/+lATud4sQ"}',
         'meta' => array(
+            'formatter' => 'plaintext',
             'postdate' => 1344803344,
             'opendiscussion' => true,
-            'formatter' => 'plaintext',
         ),
     );
 
@@ -110,6 +110,19 @@ class helper
         return $example;
     }
 
+    /**
+     * get example comment
+     *
+     * @return array
+     */
+    public static function getCommentPost($meta = array())
+    {
+        $example = self::getComment($meta);
+        $example['nickname'] = $example['meta']['nickname'];
+        unset($example['meta']['nickname']);
+        return $example;
+    }
+
     /**
      * delete directory and all its contents recursively
      *
diff --git a/tst/zerobin.php b/tst/zerobin.php
index 95f420e1..ac1fb1b7 100644
--- a/tst/zerobin.php
+++ b/tst/zerobin.php
@@ -1,7 +1,7 @@
 <?php
 class zerobinTest extends PHPUnit_Framework_TestCase
 {
-    private $_model;
+    protected $_model;
 
     public function setUp()
     {
@@ -14,6 +14,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
     public function tearDown()
     {
         /* Tear Down Routine */
+        helper::confRestore();
     }
 
     public function reset()
@@ -112,6 +113,10 @@ class zerobinTest extends PHPUnit_Framework_TestCase
     public function testCreate()
     {
         $this->reset();
+        $options = parse_ini_file(CONF, true);
+        $options['traffic']['limit'] = 0;
+        helper::confBackup();
+        helper::createIniFile(CONF, $options);
         $_POST = helper::getPaste();
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
         $_SERVER['REQUEST_METHOD'] = 'POST';
@@ -139,6 +144,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
         $_SERVER['REQUEST_METHOD'] = 'POST';
         $_SERVER['REMOTE_ADDR'] = '::1';
+        trafficlimiter::canPass();
         ob_start();
         new zerobin;
         $content = ob_get_contents();
@@ -390,7 +396,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $options['traffic']['limit'] = 0;
         helper::confBackup();
         helper::createIniFile(CONF, $options);
-        $_POST = helper::getComment();
+        $_POST = helper::getCommentPost();
         $_POST['pasteid'] = helper::getPasteId();
         $_POST['parentid'] = helper::getPasteId();
         $_POST['nickname'] = 'foo';
@@ -416,7 +422,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $options['traffic']['limit'] = 0;
         helper::confBackup();
         helper::createIniFile(CONF, $options);
-        $_POST = helper::getComment();
+        $_POST = helper::getCommentPost();
         $_POST['pasteid'] = helper::getPasteId();
         $_POST['parentid'] = helper::getPasteId();
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
@@ -441,7 +447,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $options['traffic']['limit'] = 0;
         helper::confBackup();
         helper::createIniFile(CONF, $options);
-        $_POST = helper::getComment();
+        $_POST = helper::getCommentPost();
         $_POST['pasteid'] = helper::getPasteId();
         $_POST['parentid'] = 'foo';
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
@@ -466,7 +472,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $options['traffic']['limit'] = 0;
         helper::confBackup();
         helper::createIniFile(CONF, $options);
-        $_POST = helper::getComment();
+        $_POST = helper::getCommentPost();
         $_POST['pasteid'] = helper::getPasteId();
         $_POST['parentid'] = helper::getPasteId();
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
@@ -492,7 +498,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $options['traffic']['limit'] = 0;
         helper::confBackup();
         helper::createIniFile(CONF, $options);
-        $_POST = helper::getComment();
+        $_POST = helper::getCommentPost();
         $_POST['pasteid'] = helper::getPasteId();
         $_POST['parentid'] = helper::getPasteId();
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
@@ -519,7 +525,7 @@ class zerobinTest extends PHPUnit_Framework_TestCase
         $this->_model->create(helper::getPasteId(), helper::getPaste());
         $this->_model->createComment(helper::getPasteId(), helper::getPasteId(), helper::getCommentId(), helper::getComment());
         $this->assertTrue($this->_model->existsComment(helper::getPasteId(), helper::getPasteId(), helper::getCommentId()), 'comment exists before posting data');
-        $_POST = helper::getComment();
+        $_POST = helper::getCommentPost();
         $_POST['pasteid'] = helper::getPasteId();
         $_POST['parentid'] = helper::getPasteId();
         $_SERVER['HTTP_X_REQUESTED_WITH'] = 'JSONHttpRequest';
@@ -676,8 +682,12 @@ class zerobinTest extends PHPUnit_Framework_TestCase
     public function testReadOldSyntax()
     {
         $this->reset();
-        $oldPaste = helper::getPaste(array('syntaxcoloring' => true));
-        unset($oldPaste['meta']['formatter']);
+        $oldPaste = helper::getPaste();
+        $oldPaste['meta'] = array(
+            'syntaxcoloring' => true,
+            'postdate' => $oldPaste['meta']['postdate'],
+            'opendiscussion' => $oldPaste['meta']['opendiscussion'],
+        );
         $this->_model->create(helper::getPasteId(), $oldPaste);
         $_SERVER['QUERY_STRING'] = helper::getPasteId();
         ob_start();
diff --git a/tst/zerobinWithDb.php b/tst/zerobinWithDb.php
new file mode 100644
index 00000000..18c0b888
--- /dev/null
+++ b/tst/zerobinWithDb.php
@@ -0,0 +1,43 @@
+<?php
+require_once 'zerobin.php';
+
+class zerobinWithDbTest extends zerobinTest
+{
+    private $_options = array(
+        'dsn' => 'sqlite:../data/tst.sq3',
+        'usr' => null,
+        'pwd' => null,
+        'opt' => array(
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_PERSISTENT => true
+        ),
+    );
+
+    public function setUp()
+    {
+        /* Setup Routine */
+        $this->_model = zerobin_db::getInstance($this->_options);
+        serversalt::setPath(PATH . 'data');
+        $this->reset();
+    }
+
+    public function tearDown()
+    {
+        /* Tear Down Routine */
+        parent::tearDown();
+        @unlink('../data/tst.sq3');
+    }
+
+    public function reset()
+    {
+        parent::reset();
+        // but then inject a db config
+        $options = parse_ini_file(CONF, true);
+        $options['model'] = array(
+            'class' => 'zerobin_db',
+        );
+        $options['model_options'] = $this->_options;
+        helper::confBackup();
+        helper::createIniFile(CONF, $options);
+    }
+}
\ No newline at end of file