createComplicatedTestData example

$criteria = new Criteria([$this->rule[0]['shippingMethods'][0]['id']]);
        $criteria->addAssociation('availabilityRule');

        $searchResult = $this->getContainer()->get('shipping_method.repository')->search($criteria, $defaultContext);

        static::assertSame($this->ruleId, $searchResult->first()->getAvailabilityRule()->getId());
    }

    public function testRuleAssociationsStayLikeLinked(): void
    {
        $defaultContext = Context::createDefaultContext();
        $rules = $this->createComplicatedTestData();

        $this->ruleRepository->create($rules, $defaultContext);

        $criteria1 = new Criteria(['id' => $this->ruleId]);
        $criteria1->addAssociation('shippingMethods');

        $criteria2 = new Criteria(['id' => $rules[1]['id']]);
        $criteria2->addAssociation('shippingMethods');

        $rule1 = $this->ruleRepository->search($criteria1, $defaultContext);
        $rule2 = $this->ruleRepository->search($criteria2, $defaultContext);