/**
* Test toArray method.
*/
public function testToArray()
{
$highlight = new Highlight();
$highlight->addField('ok');
$highlight->addParameter('_source', ['include' => ['title']]);
$highlight->setTags(['<tag>'], ['</tag>']);
$result = $highlight->toArray();
$expectedResult = ['fields' => ['ok' => new \StdClass()], '_source' => ['include' => ['title']], 'pre_tags' => ['<tag>'], 'post_tags' => ['</tag>']];
$this->assertEquals($expectedResult, $result);
}