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, block_by_number, ) 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 tests.base import TestDemurrageUnit logging.basicConfig(level=logging.DEBUG) logg = logging.getLogger() testdir = os.path.dirname(__file__) class TestRedistribution(TestDemurrageUnit): def test_single_step(self): nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) mint_amount = 100000000 (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], mint_amount) self.rpc.do(o) self.backend.time_travel(self.start_time + self.period_seconds) (tx_hash, o) = c.change_period(self.address, self.accounts[0]) self.rpc.do(o) expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount)) o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance_of(r) self.assertEqual(balance, expected_balance) def test_single_step_multi(self): nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) mint_amount = 100000000 for i in range(3): (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[i+1], mint_amount) self.rpc.do(o) self.backend.time_travel(self.start_time + self.period_seconds) (tx_hash, o) = c.change_period(self.address, self.accounts[0]) self.rpc.do(o) expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount)) for i in range(3): o = c.balance_of(self.address, self.accounts[i+1], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance_of(r) self.assertEqual(balance, expected_balance) def test_single_step_transfer(self): nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) mint_amount = 100000000 half_mint_amount = int(mint_amount / 2) (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], mint_amount) self.rpc.do(o) (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[2], mint_amount) self.rpc.do(o) nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) (tx_hash, o) = c.transfer(self.address, self.accounts[1], self.accounts[3], half_mint_amount) self.rpc.do(o) self.backend.time_travel(self.start_time + self.period_seconds) (tx_hash, o) = c.change_period(self.address, self.accounts[1]) self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) demurrage_amount = int((self.tax_level / 1000000) * mint_amount) expected_balance = mint_amount - demurrage_amount o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance_of(r) self.assertEqual(balance, expected_balance) half_demurrage_amount = int((self.tax_level / 1000000) * half_mint_amount) expected_balance = half_mint_amount - half_demurrage_amount o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance_of(r) self.assertEqual(balance, expected_balance) o = c.balance_of(self.address, self.accounts[3], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance_of(r) self.assertEqual(balance, expected_balance) o = c.total_supply(self.address, sender_address=self.accounts[0]) r = self.rpc.do(o) supply = c.parse_total_supply(r) o = c.redistributions(self.address, 0, sender_address=self.accounts[0]) redistribution = self.rpc.do(o) o = c.to_redistribution_supply(self.address, redistribution, sender_address=self.accounts[0]) r = self.rpc.do(o) supply = c.parse_to_redistribution_item(r) o = c.demurrage_amount(self.address, sender_address=self.accounts[0]) r = self.rpc.do(o) demurrage = c.parse_demurrage_amount(r) logg.debug('\nrediistribution {}\ndemurrage {}\nsupply {}'.format(redistribution, demurrage, supply)) expected_balance = int(supply * (self.tax_level / 1000000)) expected_balance_tolerance = 1 o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance_of(r) self.assertGreaterEqual(balance, expected_balance - expected_balance_tolerance) self.assertLessEqual(balance, expected_balance) if __name__ == '__main__': unittest.main()