/**
* {@inheritdoc }
* @param Isbn $isbn to search for
* @return Book containing found data
*/
public static function query(Isbn $isbn)
{
$localProvider = new LocalIsbnProvider();
$book = $localProvider->query($isbn);
if ($book) {
return $book;
}
$providers = HttpProviders::createProviders();
foreach ($providers as $i => $p) {
$p->provideBookFor($isbn);
}
foreach ($providers as $i => $p) {
$book = $p->getBook();
if ($book) {
return $book;
}
}
return new Book(array('isbn' => $isbn->toString()));
}
function testQuery()
{
$prov = new LocalIsbnProvider();
$result = $prov->query($this->isbn);
$this->assertEquals($this->book, $result);
}