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<?php |
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namespace JVelasco\CircuitBreaker\AvailabilityStrategy; |
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use PHPUnit\Framework\TestCase; |
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use Prophecy\Argument; |
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use Prophecy\Prophecy\ObjectProphecy; |
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final class TimeBackoffTest extends TestCase |
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{ |
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const SERVICE_NAME = 'service name'; |
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const LAST_ATTEMPT_KEY = "last_attempt"; |
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const MAX_FAILURES = 1; |
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const BASE_WAIT_TIME = 200; // 200 ms |
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const MAX_WAIT_TIME = 30000; // 30 secs |
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/** @var InMemoryStorage */ |
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private $storage; |
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/** @var TimeBackoff */ |
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private $sut; |
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/** @var BackoffStrategy|ObjectProphecy */ |
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private $backoffStrategy; |
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protected function setUp() |
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{ |
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$this->storage = new InMemoryStorage(); |
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$this->backoffStrategy = $this->prophesize(BackoffStrategy::class); |
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$this->backoffStrategy->id()->willReturn("test_backoff"); |
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$this->sut = new TimeBackoff( |
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$this->storage, |
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$this->backoffStrategy->reveal(), |
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self::MAX_FAILURES, |
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self::BASE_WAIT_TIME, |
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self::MAX_WAIT_TIME |
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); |
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} |
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/** @test */ |
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public function it_report_as_available_when_failures_is_under_threshold() |
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{ |
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$this->failuresAreUnderThreshold(); |
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$this->assertTrue($this->sut->isAvailable(self::SERVICE_NAME)); |
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} |
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/** @test */ |
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public function it_reports_as_non_available_between_attempts() |
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{ |
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$this->storage->saveStrategyData( |
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$this->sut, |
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self::SERVICE_NAME, |
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self::LAST_ATTEMPT_KEY, |
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floor(microtime(true) * 1000) |
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); |
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$this->setFailuresToMaxAllowed($this->storage); |
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$this->backoffStrategy->waitTime(Argument::any(), self::BASE_WAIT_TIME) |
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->willReturn(100); |
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$this->assertFalse($this->sut->isAvailable(self::SERVICE_NAME)); |
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} |
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/** @test */ |
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public function it_closes_the_circuit_after_timeout() |
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{ |
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$this->setFailuresToMaxAllowed(); |
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$oneSecAndOneMillisecond = floor((microtime(true) * 1000)) - self::BASE_WAIT_TIME - 1; |
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$this->storage->saveStrategyData( |
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$this->sut, |
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self::SERVICE_NAME, |
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self::LAST_ATTEMPT_KEY, |
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(string) $oneSecAndOneMillisecond |
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); |
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$this->backoffStrategy->waitTime(Argument::any(), self::BASE_WAIT_TIME) |
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->willReturn(self::BASE_WAIT_TIME); |
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$this->assertTrue($this->sut->isAvailable(self::SERVICE_NAME)); |
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$this->assertEquals(0, $this->storage->numberOfFailures(self::SERVICE_NAME)); |
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} |
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/** @test */ |
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public function it_reports_as_available_on_storage_failures() |
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{ |
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$this->storage->throwExceptionInNumberOfFailures(); |
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$this->assertTrue($this->sut->isAvailable(self::SERVICE_NAME)); |
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} |
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/** @test */ |
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public function it_tracks_attempts() |
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{ |
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$this->setFailuresToMaxAllowed(); |
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$this->waitTimeHaveOccurred(); |
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$this->sut->isAvailable(self::SERVICE_NAME); |
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$this->assertEquals(1, $this->storage->getStrategyData($this->sut, self::SERVICE_NAME, "attempts")); |
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$this->setFailuresToMaxAllowed(); |
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$this->waitTimeHaveOccurred(); |
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$this->sut->isAvailable(self::SERVICE_NAME); |
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$this->assertEquals(2, $this->storage->getStrategyData($this->sut, self::SERVICE_NAME, "attempts")); |
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} |
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private function setFailuresToMaxAllowed() |
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{ |
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$this->storage->setNumberOfFailures( |
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self::SERVICE_NAME, |
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self::MAX_FAILURES |
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); |
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} |
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private function failuresAreUnderThreshold() |
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{ |
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$this->storage->setNumberOfFailures( |
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self::SERVICE_NAME, |
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self::MAX_FAILURES - 1 |
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); |
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} |
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private function waitTimeHaveOccurred() |
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{ |
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$this->backoffStrategy->waitTime(Argument::any(), Argument::any()) |
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->willReturn(0); |
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$this->storage->saveStrategyData( |
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$this->sut, |
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self::SERVICE_NAME, |
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self::LAST_ATTEMPT_KEY, |
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floor(microtime(true) * 1000) - 1); |
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} |
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} |
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j-velasco /
php-circuit-breaker
Loading history...
This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.