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<?php declare(strict_types=1); |
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namespace SmrTest\lib\DefaultGame; |
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use Exception; |
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use Smr\Container\DiContainer; |
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use Smr\Exceptions\UserError; |
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use Smr\SectorLock; |
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use SmrTest\BaseIntegrationSpec; |
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/** |
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* @covers Smr\SectorLock |
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*/ |
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class SectorLockTest extends BaseIntegrationSpec { |
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protected function tablesToTruncate(): array { |
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return ['locks_queue']; |
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} |
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protected function tearDown(): void { |
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// Reset the DI container to avoid contaminating other tests |
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DiContainer::initialize(false); |
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} |
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public function test_getInstance_always_returns_same_instance(): void { |
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// Given a SectorLock object |
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$original = SectorLock::getInstance(); |
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// When calling getInstance again |
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$second = SectorLock::getInstance(); |
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self::assertSame($original, $second); |
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} |
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/** |
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* Test that the `resetInstance` function works properly when NPC_SCRIPT is set. |
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*/ |
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public function test_resetInstance_cli(): void { |
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// Set the NPC_SCRIPT variable as if this were a CLI program |
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DiContainer::getContainer()->set('NPC_SCRIPT', true); |
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// Given a SectorLock object |
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$original = SectorLock::getInstance(); |
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// When calling resetInstance |
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SectorLock::resetInstance(); |
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// Expect a new instance when calling getInstance again |
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$second = SectorLock::getInstance(); |
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self::assertNotSame($original, $second); |
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} |
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/** |
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* resetInstance should throw if NPC_SCRIPT is false (its default value). |
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*/ |
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public function test_resetInstance(): void { |
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$this->expectException(Exception::class); |
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$this->expectExceptionMessage('Only call this function from CLI programs'); |
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SectorLock::resetInstance(); |
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} |
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public function test_acquire_same_lock_twice(): void { |
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$lock = SectorLock::getInstance(); |
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// Given that we acquire a lock in sector 1 |
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self::assertTrue($lock->acquire(1, 1, 1)); |
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// We can call acquire again for sector 1 without throwing |
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self::assertFalse($lock->acquire(1, 1, 1)); |
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} |
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public function test_acquire_two_locks_in_the_same_request_throws(): void { |
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$lock = SectorLock::getInstance(); |
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// Given that we acquire a lock in sector 1 |
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$lock->acquire(1, 1, 1); |
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// We throw if we acquire a lock in sector 2 without first releasing |
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$this->expectException(Exception::class); |
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$this->expectExceptionMessage('This instance has an active lock in a different sector!'); |
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$lock->acquire(1, 1, 2); |
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} |
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public function test_acquire_two_locks_in_different_requests_throws(): void { |
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// Whereas two different locks in the same request likely indicates |
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// a coding error, two different locks in different request likely |
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// indicates malicious use (or perhaps spam clicking?). |
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$lock1 = SectorLock::getInstance(); |
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// Given that we acquire a lock |
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$lock1->acquire(1, 1, 1); |
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// And we use a new SectorLock instance to simulate a separate request |
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$lock2 = DiContainer::make(SectorLock::class); |
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// Then if that instance tries to acquire a lock (even for the same |
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// sector) before the other instance releases, we throw a UserError. |
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$this->expectException(UserError::class); |
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$this->expectExceptionMessage('Multiple actions cannot be performed at the same time!'); |
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try { |
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$lock2->acquire(1, 1, 1); |
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} catch (UserError $e) { |
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// Incidentally check that we have set the failed bit correctly |
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self::assertTrue($lock2->hasFailed()); |
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self::assertFalse($lock1->hasFailed()); |
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throw $e; |
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} |
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} |
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public function test_acquire_after_release(): void { |
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$lock = SectorLock::getInstance(); |
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// Given that we acquire a lock in sector 1 |
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$lock->acquire(1, 1, 1); |
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// Then release |
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$lock->release(); |
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// Expect that we can acquire a lock in sector 2 without throwing |
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self::assertTrue($lock->acquire(1, 1, 2)); |
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} |
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public function test_release_same_lock_twice(): void { |
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$lock = SectorLock::getInstance(); |
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// Given that we acquire a lock in sector 1 |
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$lock->acquire(1, 1, 1); |
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// Expect that we can call release |
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self::assertTrue($lock->release()); |
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// Expect that we can call release again without throwing |
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self::assertFalse($lock->release()); |
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} |
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public function test_isActive(): void { |
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$lock = SectorLock::getInstance(); |
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// Returns false on a fresh instance |
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self::assertFalse($lock->isActive()); |
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// Returns true after acquire |
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$lock->acquire(1, 1, 1); |
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self::assertTrue($lock->isActive()); |
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// Returns false after releasing |
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$lock->release(); |
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self::assertFalse($lock->isActive()); |
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} |
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} |
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