import os import unittest import json import logging # 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 from chainlib.eth.address import to_checksum_address from hexathon import ( strip_0x, add_0x, ) # local imports from erc20_demurrage_token import DemurrageToken # test imports from erc20_demurrage_token.unittest.base import TestDemurrageSingle logging.basicConfig(level=logging.DEBUG) logg = logging.getLogger() testdir = os.path.dirname(__file__) class TestRedistributionSingle(TestDemurrageSingle): def test_single_even_if_multiple(self): mint_amount = 100000000 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) external_address = to_checksum_address('0x' + os.urandom(20).hex()) nonce_oracle = RPCNonceOracle(self.accounts[2], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) (tx_hash, o) = c.transfer(self.address, self.accounts[2], external_address, int(mint_amount) * 0.1) r = self.rpc.do(o) nonce_oracle = RPCNonceOracle(self.accounts[3], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) (tx_hash, o) = c.transfer(self.address, self.accounts[3], external_address, int(mint_amount) * 0.2) r = self.rpc.do(o) self.backend.time_travel(self.start_time + self.period_seconds + 1) (tx_hash, o) = c.apply_demurrage(self.address, self.accounts[3]) self.rpc.do(o) o = receipt(tx_hash) rcpt = self.rpc.do(o) self.assertEqual(rcpt['status'], 1) (tx_hash, o) = c.change_period(self.address, self.accounts[3]) self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) tax_modifier = (1 - (self.tax_level / 1000000)) ** 10 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.assertEqual(balance, int(mint_amount * tax_modifier)) o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) base_amount = mint_amount - int(mint_amount * 0.1) self.assertEqual(balance, int(base_amount * tax_modifier)) #(base_amount - (base_amount * (self.tax_level / 1000000)))) o = c.balance_of(self.address, self.accounts[3], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) base_amount = mint_amount - int(mint_amount * 0.2) self.assertEqual(balance, int(base_amount * tax_modifier)) #(base_amount - (base_amount * (self.tax_level / 1000000)))) o = c.total_supply(self.address, sender_address=self.accounts[0]) r = self.rpc.do(o) new_supply = c.parse_total_supply(r) o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) expected_balance = new_supply - (new_supply * tax_modifier) logg.debug('expected balance {}'.format(expected_balance)) self.assert_within_lower(balance, expected_balance, 1) if __name__ == '__main__': unittest.main()