65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
# standard imports
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import os
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import unittest
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import json
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import logging
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# external imports
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from chainlib.eth.constant import ZERO_ADDRESS
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from chainlib.eth.nonce import RPCNonceOracle
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from chainlib.eth.tx import receipt
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# local imports
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from erc20_demurrage_token import DemurrageToken
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# test imports
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from tests.base import TestDemurrageDefault
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logging.basicConfig(level=logging.DEBUG)
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logg = logging.getLogger()
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testdir = os.path.dirname(__file__)
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class TestAmounts(TestDemurrageDefault):
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def test_mints(self):
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1000)
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r = self.rpc.do(o)
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self.backend.time_travel(self.start_time + self.period_seconds)
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(tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0])
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r = self.rpc.do(o)
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o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertEqual(balance, 817)
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1000)
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r = self.rpc.do(o)
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o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assert_within_lower(balance, 1817, 750)
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self.backend.time_travel(self.start_time + self.period_seconds * 2)
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(tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0])
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r = self.rpc.do(o)
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o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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expected_balance = ((1 - self.tax_level / 1000000) ** 10) * 1000
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expected_balance += ((1 - self.tax_level / 1000000) ** 20) * 1000
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self.assert_within_lower(balance, expected_balance, 500)
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if __name__ == '__main__':
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unittest.main()
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