public function testSimpleCollectionIndex()
{
$docs = array(new TokensDocument(array("marquette", "michigan", "hiking", "hiking", "hiking", "camping", "swimming")), new TokensDocument(array("ironwood", "michigan", "hiking", "biking", "camping", "swimming", "marquette")), new TokensDocument(array("no", "tokens", "michigan")));
$collection = new DocumentArrayCollection($docs);
$builder = new CollectionInvertedIndexBuilder($collection);
$index = $builder->getIndex();
$this->assertEquals($index['michigan'], array('freq' => 3, 'postings' => array(0, 1, 2)));
}
public function testSingleTermSearchTermDoesNotExists()
{
$docs = array(new TokensDocument(array("no", "tokens")));
$collection = new DocumentArrayCollection($docs);
$builder = new CollectionInvertedIndexBuilder($collection);
$adapter = new ArrayDataReaderAdapter($builder->getIndex());
$invertedIndex = new InvertedIndex($adapter);
$this->assertEquals(array(), $invertedIndex->query("none"));
$this->assertEquals(array(), $invertedIndex->query("php"));
}
/**
*
* @return InvertedIndex
*/
public function getInvertedIndex()
{
if (!$this->invertedIndex) {
$docs = [new TokensDocument(["marquette", "michigan", "hiking", "hiking", "hiking", "camping", "swimming"]), new TokensDocument(["ironwood", "michigan", "hiking", "biking", "camping", "swimming", "marquette"]), new TokensDocument(["no", "tokens", "michigan"])];
$collection = new DocumentArrayCollection($docs);
$builder = new CollectionInvertedIndexBuilder($collection);
$dataReader = new ArrayDataReaderAdapter($builder->getIndex());
$this->invertedIndex = new InvertedIndex($dataReader);
}
return $this->invertedIndex;
}
