erc20-demurrage-token

ERC20 token with redistributed continual demurrage
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commit 7bdd18664e8fffa1501298723691bc36792cdb52
parent e142dd043282c3c52b873d7be492ff89bd0fdf60
Author: nolash <dev@holbrook.no>
Date:   Sat,  5 Jun 2021 20:23:06 +0200

WIP time travel in sim

Diffstat:
Mpython/erc20_demurrage_token/sim/sim.py | 106+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------
Mpython/tests/sim/tests_sim.py | 18+++++++++++++++++-
2 files changed, 97 insertions(+), 27 deletions(-)

diff --git a/python/erc20_demurrage_token/sim/sim.py b/python/erc20_demurrage_token/sim/sim.py @@ -42,29 +42,11 @@ class DemurrageTokenSimulation: self.eth_backend = self.eth_helper.backend self.gas_oracle = OverrideGasOracle(limit=100000, price=1) self.rpc = TestRPCConnection(None, self.eth_helper, self.signer) + self.period = 1 for a in self.keystore.list(): self.accounts.append(add_0x(to_checksum_address(a))) settings.sink_address = self.accounts[0] - nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc) - c = DemurrageToken(chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) - (tx_hash, o) = c.constructor(self.accounts[0], settings, redistribute=redistribute, cap=cap) - self.rpc.do(o) - o = receipt(tx_hash) - r = self.rpc.do(o) - if (r['status'] != 1): - raise RuntimeError('contract deployment failed') - self.address = r['contract_address'] - - self.period_seconds = settings.period_minutes * 60 - - o = block_latest() - r = self.rpc.do(o) - self.last_block = r - - o = block_by_number(r) - r = self.rpc.do(o) - self.last_timestamp = r['timestamp'] self.actors = [] for i in range(actors): @@ -83,7 +65,30 @@ class DemurrageTokenSimulation: raise RuntimeError('failed gas transfer to account #{}: {} from {}'.format(i, address, self.accounts[idx])) logg.debug('added actor account #{}: {}'.format(i, address)) - self.eth_helper.disable_auto_mine_transactions() + o = block_latest() + r = self.rpc.do(o) + self.last_block = r + self.start_block = self.last_block + + o = block_by_number(r) + r = self.rpc.do(o) + self.last_timestamp = r['timestamp'] + self.start_timestamp = self.last_timestamp + nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc) + + c = DemurrageToken(chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) + (tx_hash, o) = c.constructor(self.accounts[0], settings, redistribute=redistribute, cap=cap) + self.rpc.do(o) + o = receipt(tx_hash) + r = self.rpc.do(o) + if (r['status'] != 1): + raise RuntimeError('contract deployment failed') + self.address = r['contract_address'] + + self.period_seconds = settings.period_minutes * 60 + + self.last_block += 1 + self.last_timestamp += 1 logg.info('intialized at block {} timestamp {} period {} demurrage level {} sink address {} (first address in keystore)'.format( self.last_block, @@ -94,14 +99,18 @@ class DemurrageTokenSimulation: ) ) + self.eth_helper.disable_auto_mine_transactions() + self.caller_contract = DemurrageToken(self.chain_spec) + def mint(self, recipient, value): nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=self.gas_oracle) (tx_hash, o) = c.mint_to(self.address, self.accounts[0], recipient, value) self.rpc.do(o) + logg.info('tx hash {}'.format(tx_hash)) return tx_hash @@ -114,24 +123,69 @@ class DemurrageTokenSimulation: def balance(self, holder): - o = self.caller_contract.balance_of(self.address, holder, sender_address=self.accounts[0]) + #o = self.caller_contract.balance_of(self.address, holder, sender_address=self.accounts[0]) + c = DemurrageToken(self.chain_spec) + o = c.balance_of(self.address, holder, sender_address=self.accounts[0]) r = self.rpc.do(o) return self.caller_contract.parse_balance_of(r) def next(self): - self.last_timestamp += self.period_seconds + target_timestamp = self.period * self.period_seconds + self.last_timestamp = target_timestamp + self.eth_helper.mine_block() - self.eth_helper.time_travel(self.last_timestamp) - self.last_block += 1 + + self.last_timestamp += 1 o = block_by_number(self.last_block) r = self.rpc.do(o) + self.last_block = r['number'] + block_base = self.last_block for tx_hash in r['transactions']: o = receipt(tx_hash) rcpt = self.rpc.do(o) if rcpt['status'] == 0: raise RuntimeError('tx {} (block {} index {}) failed'.format(tx_hash, self.last_block, rcpt['transaction_index'])) - logg.debug('tx {} (block {} index {}) verified'.format(tx_hash, self.last_block, rcpt['transaction_index'])) - + logg.info('tx {} (block {} index {}) verified'.format(tx_hash, self.last_block, rcpt['transaction_index'])) + + #self.eth_helper.time_travel(self.start_timestamp + self.last_timestamp) + + nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc) + c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=self.gas_oracle) + (tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0]) + self.rpc.do(o) + #self.eth_helper.time_travel(self.start_timestamp + self.last_timestamp + 9) + self.eth_helper.mine_block() + self.last_block += 1 + + (tx_hash, o) = c.change_period(self.address, self.accounts[0]) + self.rpc.do(o) + #self.eth_helper.time_travel(self.start_timestamp + self.last_timestamp + 10) + self.eth_helper.mine_block() + self.last_block += 1 + + o = block_by_number(self.last_block) + r = self.rpc.do(o) + for tx_hash in r['transactions']: + o = receipt(tx_hash) + rcpt = self.rpc.do(o) + if rcpt['status'] == 0: + raise RuntimeError('demurrage step failed on block {}'.format(self.last_block)) + +# while True: +# self.eth_helper.mine_block() +# o = block_latest() +# r = self.rpc.do(o) +# self.last_block = r +# +# o = block_by_number(r, include_tx=False) +# r = self.rpc.do(o) +# self.last_block =r['number'] +# if r['timestamp'] == target_timestamp: +# break + + self.last_timestamp += self.last_block - block_base + self.period += 1 + return (self.last_block, self.last_timestamp) diff --git a/python/tests/sim/tests_sim.py b/python/tests/sim/tests_sim.py @@ -9,7 +9,7 @@ from chainlib.chain import ChainSpec from erc20_demurrage_token import DemurrageTokenSettings from erc20_demurrage_token.sim import DemurrageTokenSimulation -logging.basicConfig(level=logging.DEBUG) +logging.basicConfig(level=logging.INFO) logg = logging.getLogger() @@ -39,6 +39,22 @@ class TestSim(unittest.TestCase): self.sim.mint(self.sim.actors[0], 1024) self.sim.transfer(self.sim.actors[0], self.sim.actors[1], 500) self.sim.next() + balance = self.sim.balance(self.sim.actors[0]) + self.assertEqual(balance, 524) + + balance = self.sim.balance(self.sim.actors[1]) + self.assertEqual(balance, 500) + + + def test_more_periods(self): + self.sim.mint(self.sim.actors[0], 1024) + self.sim.next() + + self.sim.mint(self.sim.actors[0], 1024) + self.sim.next() + + balance = self.sim.balance(self.sim.actors[0]) + self.assertEqual(balance, 2048) if __name__ == '__main__':