[earlybike]

Also an important question: How to get quickly tokens for a ETH test network to be able to do anything. Last time I tried I wasn't successful because all these places where you could get some free tokens didn't work and the only thing possible was to mine them yourself which still took a day or two.

[Cakez0r]

The metamask testnet faucet worked for me - https://faucet.metamask.io/

[earlybike]

Thanks, this worked.

[tree_of_item]

For a test network, can't you just modify the code to give yourself however many coins you want? Why would you need to mine?

[crypt1d]

I assume OP is referring to the test nets which are already running publicly, not one u would run locally:

https://testnet.etherscan.io/