public function testThreshold()
{
if (!function_exists('apc_clear_cache')) {
$this->markTestSkipped("APC not installed");
}
apc_clear_cache('user');
$factory = new Factory();
$cb = $factory->getSingleApcInstance(3);
$this->assertTrue($cb instanceof CircuitBreakerInterface);
$this->assertEquals(true, $cb->isAvailable('someSample'));
$cb->reportFailure('someSample');
$this->assertEquals(true, $cb->isAvailable('someSample'));
$cb->reportFailure('someSample');
$this->assertEquals(true, $cb->isAvailable('someSample'));
$cb->reportFailure('someSample');
$this->assertEquals(false, $cb->isAvailable('someSample'));
$cb->reportFailure('someSample');
$this->assertEquals(false, $cb->isAvailable('someSample'));
}
<?php
/**
* Simple script calling circuit breaker thousands of times reporting success or error and checking statuses
*
* This can be used to see how circuit breaker can be instantinated and used easily, it also gives gauge
* of the approximate performance.
*
* APC backend: ~0.0001s per check+report
*/
namespace Tests\Manual\Performance;
use Ejsmont\CircuitBreaker\Factory;
require dirname(__FILE__) . '/../../SplClassLoader.php';
$callCount = 10000;
$autoLoader = new \SplClassLoader('Ejsmont', dirname(__FILE__) . '/../../../src');
$autoLoader->register();
$factory = new Factory();
$cb = $factory->getSingleApcInstance(30, 3600);
$start = microtime(true);
for ($i = 0; $i < $callCount; $i++) {
$serviceName = "someServiceName" . $i % 5;
$cb->isAvailable($serviceName);
if (mt_rand(1, 1000) > 700) {
$cb->reportSuccess($serviceName);
} else {
$cb->reportFailure($serviceName);
}
}
$stop = microtime(true);
print_r(array(sprintf("Total time for %d calls: %.4f", $callCount, $stop - $start), unserialize(apc_fetch("EjsmontCircuitBreakerCircuitBreakerStatsAggregatedStats"))));
