public function testFilter()
{
$scopePersons = $this->getScopeMock();
$scopeLocations = $this->getScopeMock();
$arthur = $this->getResultMock($scopePersons);
$cologne = $this->getResultMock($scopeLocations);
$collection = new ResultCollection();
$collection->add($arthur)->add($cologne);
$this->assertCount(2, $collection);
$foundPersons = $collection->filter($scopePersons);
$this->assertCount(1, $foundPersons);
$this->assertContains($arthur, $foundPersons);
$foundLocations = $collection->filter($scopeLocations);
$this->assertCount(1, $foundLocations);
$this->assertContains($cologne, $foundLocations);
}
/**
* Perform the search based on the query.
*
* The query may be anything, from a simple search string to a complex query structure.
* It's based on a contract between the engine and the application.
*
* @param mixed $query
*
* @return ResultInterface[]|ResultCollection
*/
public function search($query)
{
$results = new ResultCollection();
foreach ($this->engines as $eachEngine) {
if (!$eachEngine->supports($query)) {
continue;
}
if ($more = $eachEngine->search($query)) {
if (!is_array($more) and !$more instanceof \Traversable) {
throw new DomainException('The returned result set is not traversable.');
}
foreach ($more as $eachResult) {
$results->add($eachResult);
}
}
}
return $results;
}
