public function test_isFiltered_and_isNotFiltered_scopes()
 {
     $normal = Factory::create(new Category());
     $filtered = Factory::create(new Category());
     $filter = Factory::create(new Filter(), ['category_id' => $filtered->id]);
     $this->assertEquals(1, Category::isNotFiltered()->count());
     $this->assertEquals($normal->id, Category::isNotFiltered()->first()->id);
     $this->assertEquals(1, Category::isFiltered()->count());
     $this->assertEquals($filtered->id, Category::isFiltered()->first()->id);
 }