public function testDropUniqueConstraint() { $this->client->createUniqueConstraint('ToDrop', 'username'); $this->assertArrayHasKey('ToDrop', $this->client->getUniqueConstraints()->getBody()); $this->client->dropUniqueConstraint('ToDrop', 'username'); $this->assertArrayNotHasKey('ToDrop', $this->client->getUniqueConstraints()->getBody()); }