public function test_setTableDeleted_shouldOnlyUnsetOneTableHavingTheGivenId()
 {
     $tables = $this->addDataTables(3);
     $this->manager->setTableDeleted($id = 2);
     $this->assertDataTablesInManager(array(1 => $tables[1], 2 => null, 3 => $tables[3]));
 }