Do rango exchange works with Testnet Faucets?

I’m currently integrating Rango into my Flutter app using REST API calls through a Node.js server. I’ve successfully fetched the list of blockchains, token metadata, and available swap routes. However, I'm unable to perform an actual swap since I don’t have real funds — I’m using testnet faucet balances for development.

Is there a way to test swaps using testnet balances and still execute transactions through Rango?