setAreas example

$flow->setFlowState(new FlowState());
        $flow->setData(OrderAware::ORDER, $order);

        $scopeBuilder->method('build')->willReturn(
            new FlowRuleScope($order, new Cart('test'), $this->createMock(SalesChannelContext::class))
        );

        $rule = new OrderTagRule(Rule::OPERATOR_EQ, [$tagId]);
        $ruleEntity = new RuleEntity();
        $ruleEntity->setId($ruleId);
        $ruleEntity->setPayload($rule);
        $ruleEntity->setAreas([RuleAreas::FLOW_AREA]);
        $ruleLoader->method('load')->willReturn(new RuleCollection([$ruleEntity]));

        $flowExecutor = new FlowExecutor($eventDispatcher, $appFlowActionProvider, $ruleLoader, $scopeBuilder, []);
        $flowExecutor->executeIf($ifSequence, $flow);

        static::assertEquals($trueCaseSequence, $flow->getFlowState()->currentSequence);
    }
}

class RuleCollectionTest extends TestCase
{
    public function testGetIdsByArea(): void
    {
        $ruleA = new RuleEntity();
        $ruleA->setId(Uuid::randomHex());
        $ruleA->setAreas(['a', 'b']);

        $ruleB = new RuleEntity();
        $ruleB->setId(Uuid::randomHex());
        $ruleB->setAreas(['b', 'c']);

        $ruleC = new RuleEntity();
        $ruleC->setId(Uuid::randomHex());
        $ruleC->setAreas(['c']);

        $ruleD = new RuleEntity();
        $ruleD->setId(Uuid::randomHex());