public function testGetChildrenIds() { $this->registry->getManagerForClass('OroB2BCatalogBundle:Category')->clear(); /** @var Category $category */ $categories = $this->repository->findAll(); $parent = $this->findCategoryByTitle($categories, LoadCategoryData::FIRST_LEVEL); $childrenId1 = $this->findCategoryByTitle($categories, LoadCategoryData::SECOND_LEVEL1)->getId(); $childrenId2 = $this->findCategoryByTitle($categories, LoadCategoryData::THIRD_LEVEL1)->getId(); $childrenId3 = $this->findCategoryByTitle($categories, LoadCategoryData::THIRD_LEVEL2)->getId(); $result = $this->repository->getChildrenIds($parent); $this->assertEquals($result, [$childrenId1, $childrenId2, $childrenId3]); }