/**
  * Tests Connection#setIndexName method.
  */
 public function testSetIndexName()
 {
     $connection = new Connection($this->getClient(), ['index' => 'foo']);
     $this->assertEquals('foo', $connection->getIndexName(), 'Index name should not be changed.');
     $connection->setIndexName('bar');
     $this->assertEquals('bar', $connection->getIndexName(), 'Index name should be changed');
 }