public function setUp() { $this->testHelper = new TestHelper($this); $id = BasketId::fromString('some-id'); $this->aggregateHistory = new AggregateHistory($id, [$this->testHelper->getAggregateHistoryEventOne($id), $this->testHelper->getAggregateHistoryEventTwo($id), $this->testHelper->getAggregateHistoryEventThree($id)]); }