erc20-demurrage-token

ERC20 token with redistributed continual demurrage
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test_amounts.py (5408B)

      1 # standard imports
      2 import os
      3 import unittest
      4 import json
      5 import logging
      6 
      7 # external imports
      8 from chainlib.eth.constant import ZERO_ADDRESS
      9 from chainlib.eth.nonce import RPCNonceOracle
     10 from chainlib.eth.tx import receipt
     11 
     12 # local imports
     13 from erc20_demurrage_token import DemurrageToken
     14 
     15 # test imports
     16 from erc20_demurrage_token.unittest import TestDemurrageDefault
     17 
     18 logging.basicConfig(level=logging.DEBUG)
     19 logg = logging.getLogger()
     20 
     21 testdir = os.path.dirname(__file__)
     22 
     23 class TestAmounts(TestDemurrageDefault):
     24 
     25     def test_mints(self):
     26         nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
     27         c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
     28         (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1000)
     29         r = self.rpc.do(o)
     30         o = receipt(tx_hash)
     31         r = self.rpc.do(o)
     32         self.assertEqual(r['status'], 1)
     33 
     34         self.backend.time_travel(self.start_time + self.period_seconds)
     35 
     36         (tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0])
     37         r = self.rpc.do(o)
     38         
     39         o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
     40         r = self.rpc.do(o)
     41         balance = c.parse_balance(r)
     42         self.assertEqual(balance, 980)
     43 
     44         (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1000)
     45         r = self.rpc.do(o)
     46 
     47         o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
     48         r = self.rpc.do(o)
     49         balance = c.parse_balance(r)
     50         self.assert_within_lower(balance, 1980, 750)
     51 
     52         self.backend.time_travel(self.start_time + self.period_seconds * 2)
     53 
     54         (tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0])
     55         r = self.rpc.do(o)
     56         
     57         o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
     58         r = self.rpc.do(o)
     59         balance = c.parse_balance(r)
     60 
     61         expected_balance = ((1 - self.tax_level / 1000000) ** 10) * 1000
     62         expected_balance += ((1 - self.tax_level / 1000000) ** 20) * 1000
     63         #self.assert_within_lower(balance, expected_balance, 500)
     64         self.assertEqual(balance, 1940)
     65 
     66     def test_transfers(self):
     67         nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
     68         c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
     69         (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 2000)
     70         r = self.rpc.do(o)
     71 
     72         self.backend.time_travel(self.start_time + self.period_seconds)
     73 
     74         (tx_hash, o) = c.apply_demurrage(self.address, self.accounts[0])
     75         r = self.rpc.do(o)
     76  
     77         o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
     78         r = self.rpc.do(o)
     79         balance = c.parse_balance(r)
     80         self.assertEqual(balance, 1960)
     81 
     82         nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
     83         c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
     84         (tx_hash, o) = c.transfer(self.address, self.accounts[1], self.accounts[2], 500)
     85         r = self.rpc.do(o)
     86      
     87         o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
     88         r = self.rpc.do(o)
     89         balance = c.parse_balance(r)
     90         self.assertEqual(balance, 1460)
     91 
     92         o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0])
     93         r = self.rpc.do(o)
     94         balance = c.parse_balance(r)
     95         self.assert_within_lower(balance, 500, 2000)
     96 
     97 
     98     def test_dynamic_amount(self):
     99         nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
    100         c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
    101         (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 2000)
    102         r = self.rpc.do(o)
    103 
    104         cases = [
    105             (60, 1960),
    106             (120, 1920),
    107             (180, 1882),
    108             (240, 1844),
    109             (300, 1807),
    110             (360, 1771),
    111             (420, 1736),
    112             (480, 1701),
    113             (540, 1667),
    114             (600, 1634),
    115                 ]
    116         for case in cases:
    117             self.backend.time_travel(self.start_time + int(case[0] * (self.period_seconds / 60)))
    118 
    119             o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
    120             r = self.rpc.do(o)
    121             balance = c.parse_balance(r)
    122             self.assert_within_lower(balance, case[1], 10000)
    123 
    124 
    125     def test_sweep(self):
    126         nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
    127         c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
    128         (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[0], 2000)
    129         r = self.rpc.do(o)
    130 
    131         (tx_hash, o) = c.sweep(self.address, self.accounts[0], self.accounts[1])
    132         self.rpc.do(o)
    133         o = receipt(tx_hash)
    134         r = self.rpc.do(o)
    135         self.assertEqual(r['status'], 1)
    136 
    137         o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
    138         r = self.rpc.do(o)
    139         self.assertEqual(c.parse_balance(r), 0)
    140  
    141         o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
    142         r = self.rpc.do(o)
    143         self.assert_within(c.parse_balance(r), 2000, 1)
    144  
    145 
    146 if __name__ == '__main__':
    147     unittest.main()