Redis is a noSQL database with very good scaling characteristics
in proportion to the amount of entries and data size.
/**
* Constructs this backend
*
* @param ApplicationContext $context Flow's application context
* @param array $options Configuration options - depends on the actual backend
* @param \Redis $redis
*/
public function __construct(ApplicationContext $context, array $options = [], \Redis $redis = null)
{
$this->context = $context;
if ($redis !== null) {
$options['redis'] = $redis;
}
$environmentConfiguration = $this->createEnvironmentConfiguration($context);
parent::__construct($environmentConfiguration, $options);
}
/**
* @test
*/
public function expiredEntriesAreSkippedWhenIterating()
{
$this->backend->set('entry1', 'foo', [], 1);
sleep(2);
$this->assertFalse($this->backend->has('entry1'));
$actualEntries = [];
foreach ($this->backend as $key => $value) {
$actualEntries[] = $key;
}
$this->assertEmpty($actualEntries, 'Entries should be empty');
}
/**
* @test
*/
public function hasInvokesRedis()
{
$this->redis->expects($this->once())->method('exists')->with('Foo_Cache:entry:foo')->will($this->returnValue(true));
$this->assertEquals(true, $this->backend->has('foo'));
}