public function testSetProbability() { $gc = new GarbageCollector(); try { $gc->setProbability(-99); } catch (\UnexpectedValueException $e) { $this->assertEquals('Probability must be equal or greather than 1', $e->getMessage()); } $this->assertEquals(1, $gc->getProbability()); $gc->setProbability(50); $this->assertEquals(50, $gc->getProbability()); }