Freeze accounts balances at expiry

This commit is contained in:
lash 2023-02-10 13:45:29 +00:00
parent 2717e29d91
commit 09b825808f
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
3 changed files with 132 additions and 0 deletions

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# external imports
from chainlib.eth.tx import (
TxFactory,
TxFormat,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractType,
)
class ExpiryContract(TxFactory):
def set_expires(self, contract_address, sender_address, expire_timestamp, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('setExpires')
enc.typ(ABIContractType.UINT256)
enc.uint256(expire_timestamp)
data = enc.get()
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx

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# external imports
from chainlib.eth.tx import (
TxFactory,
TxFormat,
)
from chainlib.eth.contract import (
ABIContractEncoder,
)
class SealedContract(TxFactory):
def set_state(self, contract_address, sender_address, seal, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('seal')
enc.typ(ABIContractType.UINT256)
enc.uint256(seal)
data = enc.get()
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx

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# standard imports
import os
import unittest
import json
import logging
import datetime
# external imports
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.tx import receipt
from chainlib.eth.block import (
block_latest,
block_by_number,
)
# local imports
from erc20_demurrage_token import DemurrageToken
# test imports
from erc20_demurrage_token.unittest import TestDemurrageDefault
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
testdir = os.path.dirname(__file__)
class TestExpire(TestDemurrageDefault):
def test_expires(self):
mint_amount = self.default_supply
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
for i in range(3):
(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[i+1], mint_amount)
r = self.rpc.do(o)
targetish_time = self.start_time + (self.period_seconds * 2)
(tx_hash, o) = c.set_expires(self.address, self.accounts[0], targetish_time)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
self.backend.time_travel(targetish_time + 60)
o = block_latest()
r = self.rpc.do(o)
o = block_by_number(r)
r = self.rpc.do(o)
self.assertGreaterEqual(r['timestamp'], targetish_time)
nonce_oracle = RPCNonceOracle(self.sink_address, self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
(tx_hash, o) = c.transfer(self.address, self.sink_address, self.accounts[2], 1)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assert_within(balance, 0.9604 * mint_amount, 1)
o = c.total_supply(self.address, sender_address=self.accounts[0])
r = self.rpc.do(o)
supply = c.parse_balance(r)
(tx_hash, o) = c.change_period(self.address, self.sink_address)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
o = c.decay_by(self.address, supply, int((targetish_time - self.start_time) / 60), sender_address=self.sink_address)
r = self.rpc.do(o)
target_balance = c.parse_balance(r)
self.assert_within_lower(balance, supply - target_balance, 0.0001)
if __name__ == '__main__':
unittest.main()