Which function do you want to add comments to?
TestJuiceFSEngine_genDataUrl_PVC in /pkg/ddc/juicefs/data_migrate_test.go
What comments do you want to add?
//TestJuiceFSEngine_genDataUrl_PVc是针对JuiceFSEngine结构体的genDataUrl方法的单元测试
//测试目标:确保genDataUrl方法能够正确解析pvc(PersistentVolumeClaim)类型的ExternalStageURI,并生成正确的数据迁移路径和配置信息