Add redistribution single minute demurrage test

This commit is contained in:
nolash 2021-06-07 09:04:17 +02:00
parent 399e24764a
commit e47720fa04
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
4 changed files with 198 additions and 7 deletions

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@ -148,10 +148,10 @@ class DemurrageTokenSimulation:
def get_period(self):
return self.period
def get_demurrage_modifier(self):
def get_demurrage(self):
o = self.caller_contract.demurrage_amount(self.address, sender_address=self.caller_address)
r = self.rpc.do(o)
return float(self.caller_contract.parse_demurrage_amount(r) / (10 ** 38))
return float(self.caller_contract.parse_demurrage_amount(r) / (10 ** 40))
def from_units(self, v):

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@ -16,7 +16,7 @@ settings.name = 'Simulated Demurrage Token'
settings.symbol = 'SIM'
settings.decimals = 6
settings.demurrage_level = int(decay_per_minute*(10**40))
settings.period_minutes = 10800 # 1 week in minutes
settings.period_minutes = 1 # 1 week in minutes
chain = 'evm:foochain:42'
cap = (10 ** 6) * (10 ** 12)
@ -55,15 +55,15 @@ period = sim.get_period()
print('start {} now {} period {} minutes passed {}'.format(start, timestamp, period, minutes))
contract_demurrage = 1 - sim.get_demurrage_modifier() # demurrage in percent (float)
frontend_demurrage = ((1 - decay_per_minute) ** minutes / 100) # corresponding demurrage modifier (float)
contract_demurrage = 1 - sim.get_demurrage() # demurrage in percent (float)
frontend_demurrage = 1.0 - ((1 - decay_per_minute) ** minutes) # corresponding demurrage modifier (float)
demurrage_delta = contract_demurrage - frontend_demurrage # difference between demurrage in contract and demurrage calculated in frontend
alice_checksum = 50000000 - (50000000 * frontend_demurrage) + (200000000 * frontend_demurrage) # alice's balance calculated with frontend demurrage
print("""alice frontend balance {}
alice contract balance {}
frontend demurrage {}
contract demurrage {}
frontend demurrage {:f}
contract demurrage {:f}
demurrage delta {}""".format(
alice_checksum,
sim.balance(alice),

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@ -163,3 +163,56 @@ class TestDemurrageCap(TestDemurrage):
self.deploy(c, self.mode)
logg.info('deployed with mode {}'.format(self.mode))
class TestDemurrageUnit(TestDemurrage):
def setUp(self):
super(TestDemurrage, self).setUp()
self.tax_level = 50
self.period_seconds = 60
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
self.settings = DemurrageTokenSettings()
self.settings.name = 'Foo Token'
self.settings.symbol = 'FOO'
self.settings.decimals = 6
self.settings.demurrage_level = self.tax_level * (10 ** 32)
self.settings.period_minutes = int(self.period_seconds/60)
self.settings.sink_address = self.accounts[9]
self.sink_address = self.settings.sink_address
o = block_latest()
self.start_block = self.rpc.do(o)
o = block_by_number(self.start_block, include_tx=False)
r = self.rpc.do(o)
try:
self.start_time = int(r['timestamp'], 16)
except TypeError:
self.start_time = int(r['timestamp'])
self.default_supply = 1000000000000
self.default_supply_cap = int(self.default_supply * 10)
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
self.mode = os.environ.get('ERC20_DEMURRAGE_TOKEN_TEST_MODE')
unit_valid_modes = [
'SingleNocap',
'SingleCap',
]
if self.mode != None:
if self.mode not in unit_valid_modes:
raise ValueError('Invalid mode "{}" for "unit" contract tests, valid are {}'.format(self.mode, unit_valid_modes))
else:
self.mode = 'SingleNocap'
logg.debug('executing test setup unit mode {}'.format(self.mode))
self.deploy(c, self.mode)
logg.info('deployed with mode {}'.format(self.mode))

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@ -0,0 +1,138 @@
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)
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)
expected_balance = int(supply * (self.tax_level / 1000000))
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.assertEqual(balance, expected_balance)
if __name__ == '__main__':
unittest.main()