# standard imports import datetime import unittest # external imports from chainlib.eth.nonce import RPCNonceOracle # local imports from erc20_demurrage_token import DemurrageToken from erc20_demurrage_token.demurrage import DemurrageCalculator # test imports from tests.base import TestDemurrage class TestEmulate(TestDemurrage): def test_amount_since(self): d = datetime.datetime.utcnow() - datetime.timedelta(seconds=29, hours=5, minutes=3, days=4) c = DemurrageCalculator(0.00000050105908373373) a = c.amount_since(100, d.timestamp()) self.assert_within_lower(a, 99.69667, 0.1) def test_from_contract(self): nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) self.deploy(c, 'SingleNocap') dc = DemurrageCalculator.from_contract(self.rpc, self.chain_spec, self.address, sender_address=self.accounts[0]) self.assertEqual(dc.r_min, 0.02) if __name__ == '__main__': unittest.main()