public function testUpdateSchema()
 {
     $schema = new ParseSchema('SchemaTest');
     $schema->deleteField('NewField2');
     $schema->addNumber('quantity');
     $schema->addField('status', 'Boolean');
     $schema->update();
     $getSchema = new ParseSchema('SchemaTest');
     $result = $getSchema->get();
     if (isset($result['fields']['NewField2'])) {
         $this->assertTrue(false);
     }
     if (!isset($result['fields']['quantity'])) {
         $this->assertTrue(false);
     }
     if (!isset($result['fields']['status'])) {
         $this->assertTrue(false);
     }
 }