System tests v1

[Shadowfiend]

Also involves:

• Using BTC testnet and something more reliable interchangeably, both, so we can run these tests more frequently for testing.

High-level estimate: L-XL
Breakdown: @Shadowfiend @nkuba

• Arbitrarily spin up testnet based on kube configs: 4pt
  Going to need to check with Sloan that this is as easy as I think; may just want to hit one of our existing testnets instead. -> @Shadowfiend
• Test harness based on mocha-parallel-tests: 4pt -> @nkuba
  Include the ability to do some “pre-setup” steps, e.g. to set up a deposit if we're doing a redemption test?
• Circle CI integration: 4pt -> @nkuba
• Helpers for waiting on a given Bitcoin block/transaction: 4pt -> @nkuba
• Helpers for waiting on a given Ethereum block/transaction: 4pt -> @nkuba
• System test for opening deposit -> getting NFT -> minting TBTC: 2pt -> @Shadowfiend
• System test for opening deposit -> failing to deposit -> losing bond: 1pt -> @Shadowfiend
• System test for redeeming deposit for own NFT : 1pt -> @Shadowfiend
• System test for redeeming deposit for NFT minted by someone else, owned by us: 2pt -> @Shadowfiend
• System test for redeeming deposit for NFT owned by vending machine: 4pt -> @Shadowfiend
• System test for liquidation via auction: 4pt -> @Shadowfiend

Assumptions: rather than trying to solve problems like mocking Bitcoin testnet or being able to accelerate or skip blocks, focus on building the system tests themselves. Omit dApp as well.

Total: 38pts