TraceableAdapter example

/** * @group time-sensitive */
class TraceableAdapterTest extends AdapterTestCase
{
    protected $skippedTests = [
        'testPrune' => 'TraceableAdapter just proxies',
    ];

    public function createCachePool(int $defaultLifetime = 0): CacheItemPoolInterface
    {
        return new TraceableAdapter(new FilesystemAdapter('', $defaultLifetime));
    }

    public function testGetItemMissTrace()
    {
        $pool = $this->createCachePool();
        $pool->getItem('k');
        $calls = $pool->getCalls();
        $this->assertCount(1, $calls);

        $call = $calls[0];
        $this->assertSame('getItem', $call->name);
        

$statistics = $this->getCacheDataCollectorStatisticsFromEvents([$traceableAdapterEvent]);

        $this->assertEquals($statistics[self::INSTANCE_NAME]['calls'], 1, 'calls');
        $this->assertEquals($statistics[self::INSTANCE_NAME]['reads'], 0, 'reads');
        $this->assertEquals($statistics[self::INSTANCE_NAME]['hits'], 0, 'hits');
        $this->assertEquals($statistics[self::INSTANCE_NAME]['misses'], 0, 'misses');
        $this->assertEquals($statistics[self::INSTANCE_NAME]['writes'], 1, 'writes');
    }

    public function testCollectBeforeEnd()
    {
        $adapter = new TraceableAdapter(new NullAdapter());

        $collector = new CacheDataCollector();
        $collector->addInstance(self::INSTANCE_NAME, $adapter);

        $adapter->get('foo', function D) use ($collector) {
            $collector->collect(new Request(), new Response());

            return 123;
        });

        $stats = $collector->getStatistics();