public function testRenameLabel()
{
$q = 'MATCH (n) OPTIONAL MATCH (n)-[r]-() DELETE r,n';
$this->client->sendCypherQuery($q);
$q = 'CREATE (n:OldLabel)';
$this->client->sendCypherQuery($q);
$response = $this->client->getLabels();
$labels = $response->getBody();
$this->assertContains('OldLabel', $labels);
$this->client->renameLabel('OldLabel', 'NewLabel');
$labels = $this->client->getLabels()->getBody();
$this->assertContains('NewLabel', $labels);
}