diff --git a/Tests/dblayerComplet.php b/Tests/dblayerComplet.php
index af277d0..8a1436a 100644
--- a/Tests/dblayerComplet.php
+++ b/Tests/dblayerComplet.php
@@ -119,6 +119,7 @@ class test_dblayer_{ENGINE} extends PHPUnit_Framework_TestCase
                          "with space"=>array ("varchar", "255", "not null"));
     $db->unique = array ();
     $db->primary = "group";
+    // Don't update primary key
     $res = $db->update ("gr ou\"p", array ("object"=>"%éàoppp",
                                            "with space"=>"WITH SPACE"));
     $this->assertSame (1, $res);
@@ -144,4 +145,45 @@ class test_dblayer_{ENGINE} extends PHPUnit_Framework_TestCase
                                         "where"=>"\$'\"",
                                         "with space"=>"WITH SPACE")), $res);
   }
+
+  public function test_update2 ()
+  {
+    $dbconfig = $this->confs["{ENGINE}"];
+    $db = new dblayer ($dbconfig["dsn"], $dbconfig["username"],
+                       $dbconfig["password"], $dbconfig["driver_options"]);
+    $db->table = "grouped";
+    $db->fields = array ("group"=>array ("varchar", "255", "not null"),
+                         "object"=>array ("varchar", "255", "not null"),
+                         "where"=>array ("varchar", "255", "not null"),
+                         "with space"=>array ("varchar", "255", "not null"));
+    $db->unique = array (array ("group","object"));
+    $db->primary = "group";
+    // Update primary key
+    $res = $db->update ("gr ou\"p", array ("group"=>"NEW GROUP",
+                                           "object"=>"%éàoppp",
+                                           "with space"=>"WITH SPACE"));
+    $this->assertSame (1, $res);
+  }
+
+  public function test_read3 ()
+  {
+    $dbconfig = $this->confs["{ENGINE}"];
+    $db = new dblayer ($dbconfig["dsn"], $dbconfig["username"],
+                       $dbconfig["password"], $dbconfig["driver_options"]);
+    $db->table = "grouped";
+    $db->fields = array ("group"=>array ("varchar", "255", "not null"),
+                         "object"=>array ("varchar", "255", "not null"),
+                         "where"=>array ("varchar", "255", "not null"),
+                         "with space"=>array ("varchar", "255", "not null"));
+    $db->unique = array ();
+    $res = $db->read (array (array ("group", "NEW GROUP"),
+                             array ("object","%éàoppp"),
+                             array ("where","\$'\""),
+                             array ("with space","WITH SPACE")));
+    $this->assertSame (array (0=>array ("group"=>"NEW GROUP",
+                                        "object"=>"%éàoppp",
+                                        "where"=>"\$'\"",
+                                        "with space"=>"WITH SPACE")), $res);
+  }
+
 }