WIP time travel in sim
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e142dd0432
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@ -42,29 +42,11 @@ class DemurrageTokenSimulation:
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self.eth_backend = self.eth_helper.backend
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self.gas_oracle = OverrideGasOracle(limit=100000, price=1)
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self.rpc = TestRPCConnection(None, self.eth_helper, self.signer)
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self.period = 1
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for a in self.keystore.list():
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self.accounts.append(add_0x(to_checksum_address(a)))
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settings.sink_address = self.accounts[0]
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nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc)
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c = DemurrageToken(chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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(tx_hash, o) = c.constructor(self.accounts[0], settings, redistribute=redistribute, cap=cap)
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self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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if (r['status'] != 1):
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raise RuntimeError('contract deployment failed')
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self.address = r['contract_address']
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self.period_seconds = settings.period_minutes * 60
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o = block_latest()
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r = self.rpc.do(o)
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self.last_block = r
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o = block_by_number(r)
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r = self.rpc.do(o)
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self.last_timestamp = r['timestamp']
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self.actors = []
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for i in range(actors):
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@ -83,7 +65,30 @@ class DemurrageTokenSimulation:
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raise RuntimeError('failed gas transfer to account #{}: {} from {}'.format(i, address, self.accounts[idx]))
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logg.debug('added actor account #{}: {}'.format(i, address))
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self.eth_helper.disable_auto_mine_transactions()
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o = block_latest()
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r = self.rpc.do(o)
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self.last_block = r
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self.start_block = self.last_block
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o = block_by_number(r)
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r = self.rpc.do(o)
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self.last_timestamp = r['timestamp']
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self.start_timestamp = self.last_timestamp
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nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc)
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c = DemurrageToken(chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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(tx_hash, o) = c.constructor(self.accounts[0], settings, redistribute=redistribute, cap=cap)
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self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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if (r['status'] != 1):
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raise RuntimeError('contract deployment failed')
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self.address = r['contract_address']
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self.period_seconds = settings.period_minutes * 60
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self.last_block += 1
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self.last_timestamp += 1
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logg.info('intialized at block {} timestamp {} period {} demurrage level {} sink address {} (first address in keystore)'.format(
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self.last_block,
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@ -94,14 +99,18 @@ class DemurrageTokenSimulation:
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)
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)
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self.eth_helper.disable_auto_mine_transactions()
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self.caller_contract = DemurrageToken(self.chain_spec)
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def mint(self, recipient, value):
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nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=self.gas_oracle)
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], recipient, value)
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self.rpc.do(o)
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logg.info('tx hash {}'.format(tx_hash))
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return tx_hash
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@ -114,24 +123,69 @@ class DemurrageTokenSimulation:
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def balance(self, holder):
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o = self.caller_contract.balance_of(self.address, holder, sender_address=self.accounts[0])
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#o = self.caller_contract.balance_of(self.address, holder, sender_address=self.accounts[0])
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c = DemurrageToken(self.chain_spec)
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o = c.balance_of(self.address, holder, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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return self.caller_contract.parse_balance_of(r)
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def next(self):
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self.last_timestamp += self.period_seconds
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target_timestamp = self.period * self.period_seconds
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self.last_timestamp = target_timestamp
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self.eth_helper.mine_block()
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self.eth_helper.time_travel(self.last_timestamp)
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self.last_block += 1
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self.last_timestamp += 1
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o = block_by_number(self.last_block)
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r = self.rpc.do(o)
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self.last_block = r['number']
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block_base = self.last_block
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for tx_hash in r['transactions']:
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o = receipt(tx_hash)
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rcpt = self.rpc.do(o)
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if rcpt['status'] == 0:
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raise RuntimeError('tx {} (block {} index {}) failed'.format(tx_hash, self.last_block, rcpt['transaction_index']))
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logg.debug('tx {} (block {} index {}) verified'.format(tx_hash, self.last_block, rcpt['transaction_index']))
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logg.info('tx {} (block {} index {}) verified'.format(tx_hash, self.last_block, rcpt['transaction_index']))
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#self.eth_helper.time_travel(self.start_timestamp + self.last_timestamp)
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nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=self.gas_oracle)
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(tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0])
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self.rpc.do(o)
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#self.eth_helper.time_travel(self.start_timestamp + self.last_timestamp + 9)
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self.eth_helper.mine_block()
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self.last_block += 1
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(tx_hash, o) = c.change_period(self.address, self.accounts[0])
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self.rpc.do(o)
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#self.eth_helper.time_travel(self.start_timestamp + self.last_timestamp + 10)
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self.eth_helper.mine_block()
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self.last_block += 1
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o = block_by_number(self.last_block)
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r = self.rpc.do(o)
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for tx_hash in r['transactions']:
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o = receipt(tx_hash)
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rcpt = self.rpc.do(o)
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if rcpt['status'] == 0:
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raise RuntimeError('demurrage step failed on block {}'.format(self.last_block))
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# while True:
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# self.eth_helper.mine_block()
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# o = block_latest()
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# r = self.rpc.do(o)
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# self.last_block = r
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#
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# o = block_by_number(r, include_tx=False)
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# r = self.rpc.do(o)
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# self.last_block =r['number']
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# if r['timestamp'] == target_timestamp:
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# break
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self.last_timestamp += self.last_block - block_base
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self.period += 1
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return (self.last_block, self.last_timestamp)
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@ -9,7 +9,7 @@ from chainlib.chain import ChainSpec
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from erc20_demurrage_token import DemurrageTokenSettings
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from erc20_demurrage_token.sim import DemurrageTokenSimulation
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logging.basicConfig(level=logging.DEBUG)
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logging.basicConfig(level=logging.INFO)
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logg = logging.getLogger()
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@ -39,6 +39,22 @@ class TestSim(unittest.TestCase):
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self.sim.mint(self.sim.actors[0], 1024)
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self.sim.transfer(self.sim.actors[0], self.sim.actors[1], 500)
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self.sim.next()
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balance = self.sim.balance(self.sim.actors[0])
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self.assertEqual(balance, 524)
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balance = self.sim.balance(self.sim.actors[1])
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self.assertEqual(balance, 500)
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def test_more_periods(self):
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self.sim.mint(self.sim.actors[0], 1024)
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self.sim.next()
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self.sim.mint(self.sim.actors[0], 1024)
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self.sim.next()
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balance = self.sim.balance(self.sim.actors[0])
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self.assertEqual(balance, 2048)
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if __name__ == '__main__':
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