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<?php declare(strict_types=1); |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Exception\ConnectException; |
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use GuzzleHttp\HandlerStack; |
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use LeoCarmo\CircuitBreaker\Adapters\SwooleTableAdapter; |
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use LeoCarmo\CircuitBreaker\CircuitBreaker; |
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use LeoCarmo\CircuitBreaker\CircuitBreakerException; |
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use LeoCarmo\CircuitBreaker\GuzzleMiddleware; |
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use PHPUnit\Framework\TestCase; |
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class GuzzleMiddlewareTest extends TestCase |
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{ |
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public function testSuccessRequest() |
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{ |
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$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'testSuccessRequest'); |
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// Set the first failure and the failure threshold |
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$circuit->setSettings(['failureRateThreshold' => 2]); |
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$circuit->failure(); |
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$handler = new GuzzleMiddleware($circuit); |
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$handlers = HandlerStack::create(); |
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$handlers->push($handler); |
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$client = new Client(['handler' => $handlers, 'verify' => false]); |
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$response = $client->get('leocarmo.dev'); |
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// After a success response the failures must be reset and the circuit is available |
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$this->assertEquals(200, $response->getStatusCode()); |
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$this->assertTrue($circuit->isAvailable()); |
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// Set another failure to ensure that the previous failure was reset and a new fail will not open the circuit |
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$circuit->failure(); |
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$this->assertTrue($circuit->isAvailable()); |
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} |
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public function testSuccessRequestWithCustomStatusCode() |
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{ |
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$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'testRequestWithCustomStatusCode'); |
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// Set the first failure and the failure threshold |
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$circuit->setSettings(['failureRateThreshold' => 2]); |
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$circuit->failure(); |
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$handler = new GuzzleMiddleware($circuit); |
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$handler->setCustomSuccessCodes([403]); |
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$handlers = HandlerStack::create(); |
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$handlers->push($handler); |
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$client = new Client(['handler' => $handlers, 'verify' => false, 'http_errors' => false]); |
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// After a success response the failures must be reset and the circuit is available |
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$this->assertEquals(1, $circuit->getFailuresCounter()); |
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$response = $client->get('https://httpstat.us/403'); |
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$this->assertEquals(403, $response->getStatusCode()); |
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$this->assertEquals(0, $circuit->getFailuresCounter()); |
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$this->assertTrue($circuit->isAvailable()); |
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// Set another failure to ensure that the previous failure was reset and a new fail will not open the circuit |
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$circuit->failure(); |
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$this->assertTrue($circuit->isAvailable()); |
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} |
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public function testRequestWithIgnoredStatusCode() |
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{ |
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$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'testRequestWithCustomStatusCode'); |
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// Set the first failure and the failure threshold |
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$circuit->setSettings(['failureRateThreshold' => 2]); |
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$circuit->failure(); |
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$handler = new GuzzleMiddleware($circuit); |
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$handler->setCustomIgnoreCodes([412]); |
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$handlers = HandlerStack::create(); |
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$handlers->push($handler); |
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$client = new Client(['handler' => $handlers, 'verify' => false, 'http_errors' => false]); |
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// After an ignored status code, nothing will change on failure counter |
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$this->assertEquals(1, $circuit->getFailuresCounter()); |
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$response = $client->get('https://httpstat.us/412'); |
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$this->assertEquals(412, $response->getStatusCode()); |
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$this->assertEquals(1, $circuit->getFailuresCounter()); |
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$this->assertTrue($circuit->isAvailable()); |
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} |
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public function testCircuitIsNotAvailable() |
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{ |
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$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'testCircuitIsNotAvailable'); |
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$circuit->setSettings(['failureRateThreshold' => 2]); |
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$circuit->failure(); |
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$circuit->failure(); |
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$this->assertEquals(2, $circuit->getFailuresCounter()); |
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$handler = new GuzzleMiddleware($circuit); |
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$handlers = HandlerStack::create(); |
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$handlers->push($handler); |
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$client = new Client(['handler' => $handlers, 'verify' => false]); |
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$this->expectException(CircuitBreakerException::class); |
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$client->get('leocarmo.dev'); |
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} |
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public function testFailureRequest() |
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{ |
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$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'testFailureRequest'); |
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$circuit->setSettings(['failureRateThreshold' => 2]); |
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$circuit->failure(); |
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$handler = new GuzzleMiddleware($circuit); |
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$handlers = HandlerStack::create(); |
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$handlers->push($handler); |
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$client = new Client(['handler' => $handlers, 'verify' => false]); |
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$this->expectException(\GuzzleHttp\Exception\ClientException::class); |
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$client->get('leocarmo.dev/undefined'); |
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$this->assertEquals(2, $circuit->getFailuresCounter()); |
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$this->assertFalse($circuit->isAvailable()); |
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} |
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public function testFailureRequestToUnknownHost() |
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{ |
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$circuit = new CircuitBreaker(new SwooleTableAdapter(), 'testFailureRequest'); |
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$circuit->setSettings(['failureRateThreshold' => 2]); |
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$circuit->failure(); |
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$handler = new GuzzleMiddleware($circuit); |
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$handlers = HandlerStack::create(); |
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$handlers->push($handler); |
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$client = new Client(['handler' => $handlers, 'verify' => false]); |
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try { |
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$client->get('undefined_host.dev'); |
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} catch (\Throwable $exception) { |
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$this->assertInstanceOf(ConnectException::class, $exception); |
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} |
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$this->assertEquals(2, $circuit->getFailuresCounter()); |
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$this->assertFalse($circuit->isAvailable()); |
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} |
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} |
leocarmo /
circuit-breaker-php
