## What was done?
- remove dependency of Asset Lock txes on CCreditPool
- new case for functional tests of Asset Locks - more than one output
for Asset Lock tx.
## How Has This Been Tested?
Run unit/functional tests
## Breaking Changes
Slightly changes behaviour of TxMempool. Tx can be accepted in mempool
even if Asset Unlock transaction with same index is already mined. But
final consensus rules are same.
## Checklist:
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone
By design we can have more and more and more gaps in indexes list so far as
we can not re-sign expired transaction of asset-unlock. CRangesList is protected from this situation
## Issue being fixed or feature implemented
Bad naming is noticed in https://github.com/dashpay/dash/pull/5026 by
thephez
## What was done?
Renamed `assetLockedAmount` in CbTx to `creditPoolBalance`
Renamed also some local variables and functions to make it matched also.
## How Has This Been Tested?
Run functional/unit tests - succeed
Called python's rpc binding `node.getblock(block_hash)['cbTx']`:
Got this result:
```
{'version': 3, 'height': 1556, 'merkleRootMNList': '978b2b4d1b884de62799b9eaee75c7812fea59f98f80d5ff9c963b0f0f195e14', 'merkleRootQuorums': 'bc7a34eb114f4e4bf38a11080b5d8ac41bdb36dd41e17467bae23c94ba06b013', 'bestCLHeightDiff': 0, 'bestCLSignature': '000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', 'creditPoolBalance': Decimal('7.00141421')}
```
## Breaking Changes
Renamed `assetLockedAmount` in CbTx to `creditPoolBalance`. @shumkov be
informed
## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone
## Issue being fixed or feature implemented
This is an implementation of DIP0027 "Credit Asset Locks".
It's a mechanism to fluidly exchange between Dash and credits.
## What was done?
This pull request includes:
- Asset Lock transaction
- Asset Unlock transaction (withdrawal)
- Credit Pool in coinbase
- Unit tests for Asset Lock/Unlock tx
- New functional test `feature_asset_locks.py`
RPC: currently locked amount (credit pool) is available through rpc call
`getblock`.
## How Has This Been Tested?
There added new unit tests for basic checks of transaction validity
(asset lock/unlock).
Also added new functional test "feature_asset_locks.py" that cover
typical cases, but not all corner cases yet.
## Breaking Changes
This feature should be activated as hard-fork because:
- It adds 2 new special transaction and one of them [asset unlock tx]
requires update consensus rulels
- It adds new data in coinbase tx (credit pool)
## Checklist:
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
**To release DIP 0027**
- [x] I have assigned this pull request to a milestone
---------
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
