public function testFilter()
{
$this->provider->shouldReceive('fetch')->andReturn(new \ArrayIterator(range(1, 10)));
$records = $this->porter->import($this->specification->setFilter(function ($record) {
return $record % 2;
}));
self::assertInstanceOf(PorterRecords::class, $records);
self::assertSame([1, 3, 5, 7, 9], iterator_to_array($records));
/** @var FilteredRecords $previous */
self::assertInstanceOf(FilteredRecords::class, $previous = $records->getPreviousCollection());
self::assertNotSame($previous->getFilter(), $this->specification->getFilter(), 'Filter was not cloned.');
}
private function applyCacheAdvice(Provider $provider, CacheAdvice $cacheAdvice)
{
try {
if (!$provider instanceof CacheToggle) {
throw CacheUnavailableException::modify();
}
switch ("{$cacheAdvice}") {
case CacheAdvice::MUST_CACHE:
case CacheAdvice::SHOULD_CACHE:
$provider->enableCache();
break;
case CacheAdvice::MUST_NOT_CACHE:
case CacheAdvice::SHOULD_NOT_CACHE:
$provider->disableCache();
}
} catch (CacheUnavailableException $exception) {
if ($cacheAdvice === CacheAdvice::MUST_NOT_CACHE() || $cacheAdvice === CacheAdvice::MUST_CACHE()) {
throw $exception;
}
}
}
