Use explicit pre-release signer

python/MANIFEST.in

@@ -1 +1 @@
-include erc20_demurrage_token/data/*
+include erc20_demurrage_token/data/* erc20_demurrage_token/data/config/*.ini *requirements.txt

python/erc20_demurrage_token/demurrage.py

@@ -0,0 +1,68 @@
+# standard imports
+import logging
+import datetime
+import math
+
+# eternal imports
+from chainlib.eth.constant import ZERO_ADDRESS
+
+# local imports
+from .token import DemurrageToken
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+
+class DemurrageCalculator:
+
+    def __init__(self, interest_f_minute):
+
+        self.r_min = interest_f_minute
+        self.r_hour = 1 - ((1 -self.r_min) ** 60)
+        self.r_day = 1 - ((1 -self.r_hour) ** 24)
+        #self.r_week = interest_f_day ** 7
+        logg.info('demurrage calculator set with min {:.32f} hour {:.32f} day {:.32f}'.format(self.r_min, self.r_hour, self.r_day))
+
+
+    def amount_since(self, amount, timestamp):
+        delta = datetime.datetime.utcnow() - datetime.datetime.fromtimestamp(timestamp)
+        adjusted_amount = amount * ((1 - self.r_day) ** (delta.days))
+        logg.debug('adjusted for {} days {} -> {}'.format(delta.days, amount, adjusted_amount))
+
+        remainder = delta.seconds
+        remainder_hours = math.floor(remainder / (60 * 60))
+        adjusted_delta = adjusted_amount * ((1 - self.r_hour) ** remainder_hours)
+        adjusted_amount -= (adjusted_amount - adjusted_delta)
+        logg.debug('adjusted for {} hours {} -> {} delta {}'.format(remainder_hours, amount, adjusted_amount, adjusted_delta))
+
+        remainder -= (remainder_hours * (60 * 60))
+        remainder_minutes = math.floor(remainder / 60)
+        adjusted_delta = adjusted_amount * ((1 - self.r_min) ** remainder_minutes)
+        adjusted_amount -= (adjusted_amount - adjusted_delta)
+        logg.debug('adjusted for {} minutes {} -> {} delta {}'.format(remainder_minutes, amount, adjusted_amount, adjusted_delta))
+
+        return adjusted_amount
+
+    
+    def amount_since_slow(self, amount, timestamp):
+        delta = datetime.datetime.utcnow() - datetime.datetime.fromtimestamp(timestamp)
+        remainder_minutes = math.floor(delta.total_seconds() / 60)
+        adjusted_amount = amount * ((1 - self.r_min) ** remainder_minutes)
+        logg.debug('adjusted for {} minutes {} -> {} delta {}'.format(remainder_minutes, amount, adjusted_amount, amount - adjusted_amount))
+
+        return adjusted_amount
+
+
+    @staticmethod
+    def from_contract(rpc, chain_spec, contract_address, sender_address=ZERO_ADDRESS):
+        c = DemurrageToken(chain_spec)
+        o = c.tax_level(contract_address, sender_address=sender_address)
+        r = rpc.do(o)
+        taxlevel_i = c.parse_tax_level(r)
+
+        o = c.resolution_factor(contract_address, sender_address=sender_address)
+        r = rpc.do(o)
+        divider = c.parse_resolution_factor(r)
+        logg.debug('taxlevel {} f {}'.format(taxlevel_i, divider))
+        taxlevel_f = taxlevel_i / divider
+        return DemurrageCalculator(taxlevel_f)

python/erc20_demurrage_token/runnable/deploy.py

@@ -28,8 +28,10 @@ from chainlib.eth.gas import (
 from chainlib.eth.connection import EthHTTPConnection
 from chainlib.eth.tx import receipt
 from chainlib.eth.constant import ZERO_ADDRESS
+import chainlib.eth.cli
 
 # local imports
+import erc20_demurrage_token
 from erc20_demurrage_token import (
         DemurrageToken,
         DemurrageTokenSettings,
@@ -41,56 +43,37 @@ logg = logging.getLogger()
 script_dir = os.path.dirname(__file__)
 data_dir = os.path.join(script_dir, '..', 'data')
 
-default_config_dir = os.environ.get('CONFINI_DIR', '/usr/local/share/sarafu-token')
+config_dir = os.path.join(data_dir, 'config')
 
-argparser = argparse.ArgumentParser()
-argparser.add_argument('-c', '--config', dest='c', type=str, default=default_config_dir, help='configuration directory')
-argparser.add_argument('-p', '--provider', dest='p', default='http://localhost:8545', type=str, help='Web3 provider url (http only)')
-argparser.add_argument('-w', action='store_true', help='Wait for the last transaction to be confirmed')
-argparser.add_argument('-ww', action='store_true', help='Wait for every transaction to be confirmed')
-argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
-argparser.add_argument('-y', '--key-file', dest='y', type=str, help='Ethereum keystore file to use for signing')
-argparser.add_argument('-v', action='store_true', help='Be verbose')
-argparser.add_argument('-vv', action='store_true', help='Be more verbose')
-argparser.add_argument('-d', action='store_true', help='Dump RPC calls to terminal and do not send')
-argparser.add_argument('--name', type=str, help='Token name')
-argparser.add_argument('--decimals', default=6, type=int, help='Token decimals')
-argparser.add_argument('--gas-price', type=int, dest='gas_price', help='Override gas price')
-argparser.add_argument('--nonce', type=int, help='Override transaction nonce')
+arg_flags = chainlib.eth.cli.argflag_std_write
+argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
+argparser.add_argument('--name', dest='token_name', type=str, help='Token name')
+argparser.add_argument('--symbol', dest='token_symbol', required=True, type=str, help='Token symbol')
+argparser.add_argument('--decimals', dest='token_decimals', default=18, type=int, help='Token decimals')
 argparser.add_argument('--sink-address', dest='sink_address', default=ZERO_ADDRESS, type=str, help='demurrage level,ppm per minute') 
 argparser.add_argument('--supply-limit', dest='supply_limit', type=int, help='token supply limit (0 = no limit)')
 argparser.add_argument('--redistribution-period', type=int, help='redistribution period, minutes (0 = deactivate)') # default 10080 = week
-argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
-argparser.add_argument('--symbol', type=str, help='Token symbol')
+argparser.add_argument('--multi', action='store_true', help='automatic redistribution')
 argparser.add_argument('--demurrage-level', dest='demurrage_level', type=int, help='demurrage level, ppm per minute') 
 args = argparser.parse_args()
 
-if args.vv:
-    logg.setLevel(logging.DEBUG)
-elif args.v:
-    logg.setLevel(logging.INFO)
+arg_flags = chainlib.eth.cli.argflag_std_write
 
-block_all = args.ww
-block_last = args.w or block_all
-
-# process config
-config = confini.Config(args.c)
-config.process()
-args_override = {
-            'TOKEN_REDISTRIBUTION_PERIOD': getattr(args, 'redistribution_period'),
-            'TOKEN_DEMURRAGE_LEVEL': getattr(args, 'demurrage_level'),
-            'TOKEN_SUPPLY_LIMIT': getattr(args, 'supply_limit'),
-            'TOKEN_SYMBOL': getattr(args, 'symbol'),
-            'TOKEN_NAME': getattr(args, 'name'),
-            'TOKEN_DECIMALS': getattr(args, 'decimals'),
-            'TOKEN_SINK_ADDRESS': getattr(args, 'sink_address'),
-            'SESSION_CHAIN_SPEC': getattr(args, 'i'),
-            'ETH_PROVIDER': getattr(args, 'p'),
+extra_args = {
+        'redistribution_period': 'TOKEN_REDISTRIBUTION_PERIOD',
+        'demurrage_level': 'TOKEN_DEMURRAGE_LEVEL',
+        'supply_limit': 'TOKEN_SUPPLY_LIMIT',
+        'token_name': 'TOKEN_NAME',
+        'token_symbol': 'TOKEN_SYMBOL',
+        'token_decimals': 'TOKEN_DECIMALS',
+        'sink_address': 'TOKEN_SINK_ADDRESS',
+        'multi': None,
         }
-if config.get('TOKEN_NAME') == None:
+config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=DemurrageToken.gas(), base_config_dir=config_dir)
+
+if not bool(config.get('TOKEN_NAME')):
     logg.info('token name not set, using symbol {} as name'.format(config.get('TOKEN_SYMBOL')))
     config.add(config.get('TOKEN_SYMBOL'), 'TOKEN_NAME', True)
-config.dict_override(args_override, 'cli args')
 
 if config.get('TOKEN_SUPPLY_LIMIT') == None:
     config.add(0, 'TOKEN_SUPPLY_LIMIT', True)
@@ -99,44 +82,22 @@ if config.get('TOKEN_REDISTRIBUTION_PERIOD') == None:
     config.add(10800, 'TOKEN_REDISTRIBUTION_PERIOD', True)
 logg.debug('config loaded:\n{}'.format(config))
 
-passphrase_env = 'ETH_PASSPHRASE'
-if args.env_prefix != None:
-    passphrase_env = args.env_prefix + '_' + passphrase_env
-passphrase = os.environ.get(passphrase_env)
-if passphrase == None:
-    logg.warning('no passphrase given')
-    passphrase=''
+wallet = chainlib.eth.cli.Wallet()
+wallet.from_config(config)
 
-signer_address = None
-keystore = DictKeystore()
-if args.y != None:
-    logg.debug('loading keystore file {}'.format(args.y))
-    signer_address = keystore.import_keystore_file(args.y, password=passphrase)
-    logg.debug('now have key for signer address {}'.format(signer_address))
-signer = EIP155Signer(keystore)
+rpc = chainlib.eth.cli.Rpc(wallet=wallet)
+conn = rpc.connect_by_config(config)
 
-chain_spec = ChainSpec.from_chain_str(args.i)
+chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
 
-rpc = EthHTTPConnection(args.p)
-nonce_oracle = None
-if args.nonce != None:
-    nonce_oracle = OverrideNonceOracle(signer_address, args.nonce)
-else:
-    nonce_oracle = RPCNonceOracle(signer_address, rpc)
-
-gas_oracle = None
-if args.gas_price !=None:
-    gas_oracle = OverrideGasOracle(price=args.gas_price, conn=rpc, code_callback=DemurrageToken.gas)
-else:
-    gas_oracle = RPCGasOracle(rpc, code_callback=DemurrageToken.gas)
-
-dummy = args.d
-
-token_name = args.name
-if token_name == None:
-    token_name = args.symbol
 
 def main():
+    signer = rpc.get_signer()
+    signer_address = rpc.get_sender_address()
+
+    gas_oracle = rpc.get_gas_oracle()
+    nonce_oracle = rpc.get_nonce_oracle()
+
     c = DemurrageToken(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
     settings = DemurrageTokenSettings()
     settings.name = config.get('TOKEN_NAME')
@@ -149,16 +110,13 @@ def main():
     (tx_hash_hex, o) = c.constructor(
             signer_address,
             settings,
-            redistribute=settings.period_minutes > 0,
+            redistribute=config.true('_MULTI'),
             cap=int(config.get('TOKEN_SUPPLY_LIMIT')),
             )
-    if dummy:
-        print(tx_hash_hex)
-        print(o)
-    else:
-        rpc.do(o)
-        if block_last:
-            r = rpc.wait(tx_hash_hex)
+    if config.get('_RPC_SEND'):
+        conn.do(o)
+        if config.get('_WAIT'):
+            r = conn.wait(tx_hash_hex)
             if r['status'] == 0:
                 sys.stderr.write('EVM revert while deploying contract. Wish I had more to tell you')
                 sys.exit(1)
@@ -169,6 +127,9 @@ def main():
         else:
             print(tx_hash_hex)
 
+    else:
+        print(o)
+
 
 if __name__ == '__main__':
     main()

python/erc20_demurrage_token/token.py

@@ -343,7 +343,15 @@ class DemurrageToken(ERC20):
         tx = self.set_code(tx, data)
         tx = self.finalize(tx, tx_format)
         return tx
-    
+
+
+    def tax_level(self, contract_address, sender_address=ZERO_ADDRESS):
+        return self.call_noarg('taxLevel', contract_address, sender_address=sender_address)
+
+
+    def resolution_factor(self, contract_address, sender_address=ZERO_ADDRESS):
+        return self.call_noarg('resolutionFactor', contract_address, sender_address=sender_address)
+
 
     def actual_period(self, contract_address, sender_address=ZERO_ADDRESS):
         return self.call_noarg('actualPeriod', contract_address, sender_address=sender_address)
@@ -507,3 +515,13 @@ class DemurrageToken(ERC20):
     @classmethod
     def parse_get_distribution(self, v):
         return abi_decode_single(ABIContractType.UINT256, v)
+
+
+    @classmethod
+    def parse_tax_level(self, v):
+        return abi_decode_single(ABIContractType.UINT256, v)
+
+
+    @classmethod
+    def parse_resolution_factor(self, v):
+        return abi_decode_single(ABIContractType.UINT256, v)

python/erc20_demurrage_token/unittest/__init__.py

@@ -0,0 +1 @@
+from .base import *

python/erc20_demurrage_token/unittest/base.py

@@ -12,6 +12,7 @@ from chainlib.eth.block import (
         block_by_number,
         )
 from chainlib.eth.nonce import RPCNonceOracle
+from chainlib.eth.constant import ZERO_ADDRESS
 
 # local imports
 from erc20_demurrage_token import (
@@ -29,64 +30,93 @@ TAX_LEVEL = int(10000 * 2) # 2%
 PERIOD = 10
 
 
-class TestDemurrage(EthTesterCase):
-
-    def setUp(self):
-        super(TestDemurrage, self).setUp()
+class TestTokenDeploy:
 
+    def __init__(self, rpc, token_symbol='FOO', token_name='Foo Token', sink_address=ZERO_ADDRESS, supply=10**12):
         self.tax_level = TAX_LEVEL
         self.period_seconds = PERIOD * 60
 
-        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
         self.settings = DemurrageTokenSettings()
-        self.settings.name = 'Foo Token'
-        self.settings.symbol = 'FOO'
+        self.settings.name = token_name
+        self.settings.symbol = token_symbol
         self.settings.decimals = 6
         self.settings.demurrage_level = TAX_LEVEL * (10 ** 32)
         self.settings.period_minutes = PERIOD
-        self.settings.sink_address = self.accounts[9]
+        self.settings.sink_address = sink_address
         self.sink_address = self.settings.sink_address
 
         o = block_latest()
-        self.start_block = self.rpc.do(o)
+        self.start_block = rpc.do(o)
         
         o = block_by_number(self.start_block, include_tx=False)
-        r = self.rpc.do(o)
+        r = rpc.do(o)
 
         try:
             self.start_time = int(r['timestamp'], 16)
         except TypeError:
             self.start_time = int(r['timestamp'])
 
-        self.default_supply = 10 ** 12
+        self.default_supply = supply
         self.default_supply_cap = int(self.default_supply * 10)
 
 
-    def deploy(self, interface, mode):
+    def deploy(self, rpc, deployer_address, interface, mode, supply_cap=10**12):
         tx_hash = None
         o = None
+        logg.debug('mode {} {}'.format(mode, self.settings))
+        self.mode = mode
         if mode == 'MultiNocap':
-            (tx_hash, o) = interface.constructor(self.accounts[0], self.settings, redistribute=True, cap=0)
+            (tx_hash, o) = interface.constructor(deployer_address, self.settings, redistribute=True, cap=0)
         elif mode == 'SingleNocap':
-            (tx_hash, o) = interface.constructor(self.accounts[0], self.settings, redistribute=False, cap=0)
+            (tx_hash, o) = interface.constructor(deployer_address, self.settings, redistribute=False, cap=0)
         elif mode == 'MultiCap':
-            (tx_hash, o) = interface.constructor(self.accounts[0], self.settings, redistribute=True, cap=self.default_supply_cap)
+            (tx_hash, o) = interface.constructor(deployer_address, self.settings, redistribute=True, cap=supply_cap)
         elif mode == 'SingleCap':
-            (tx_hash, o) = interface.constructor(self.accounts[0], self.settings, redistribute=False, cap=self.default_supply_cap)
+            (tx_hash, o) = interface.constructor(deployer_address, self.settings, redistribute=False, cap=supply_cap)
         else:
-            raise ValueError('Invalid mode "{}", valid are {}'.format(self.mode, DemurrageToken.valid_modes))
+            raise ValueError('Invalid mode "{}", valid are {}'.format(mode, DemurrageToken.valid_modes))
 
-        r = self.rpc.do(o)
+        r = rpc.do(o)
         o = receipt(tx_hash)
-        r = self.rpc.do(o)
-        self.assertEqual(r['status'], 1)
+        r = rpc.do(o)
+        assert r['status'] == 1
         self.start_block = r['block_number']
         self.address = r['contract_address']
 
         o = block_by_number(r['block_number'])
-        r = self.rpc.do(o)
+        r = rpc.do(o)
         self.start_time = r['timestamp']
 
+        return self.address
+
+
+class TestDemurrage(EthTesterCase):
+
+    def setUp(self):
+        super(TestDemurrage, self).setUp()
+#        token_deploy = TestTokenDeploy()
+#        self.settings = token_deploy.settings
+#        self.sink_address = token_deploy.sink_address
+#        self.start_block = token_deploy.start_block
+#        self.start_time = token_deploy.start_time
+#        self.default_supply = self.default_supply
+#        self.default_supply_cap = self.default_supply_cap
+        self.deployer = TestTokenDeploy(self.rpc)
+        self.default_supply = self.deployer.default_supply
+        self.default_supply_cap = self.deployer.default_supply_cap
+        self.start_block = None
+        self.address = None
+        self.start_time = None
+
+
+    def deploy(self, interface, mode):
+        self.address = self.deployer.deploy(self.rpc, self.accounts[0], interface, mode, supply_cap=self.default_supply_cap)
+        self.start_block = self.deployer.start_block
+        self.start_time = self.deployer.start_time
+        self.tax_level = self.deployer.tax_level
+        self.period_seconds = self.deployer.period_seconds
+        self.sink_address = self.deployer.sink_address
+
         logg.debug('contract address {} start block {} start time {}'.format(self.address, self.start_block, self.start_time))
 
 

python/requirements.txt

@@ -1,3 +1,3 @@
-chainlib~=0.0.5a1
-eth-erc20~=0.0.10a1
-crypto-dev-signer~=0.4.14b6
+chainlib>=0.0.9a3,<=0.1.0
+eth-erc20>=0.1.2a1,<0.2.0
+crypto-dev-signer>=0.4.15a1,<=0.4.15

python/run_tests.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+set -x
 set -e
 
 export PYTHONPATH=.
@@ -16,7 +17,7 @@ done
 modes=(SingleCap) # other contracts need to be updted
 for m in ${modes[@]}; do
 	ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_period.py
-	ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_redistribution_unit.py
+#	ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_redistribution_unit.py
 done
 
 modes=(MultiCap SingleCap)
@@ -31,3 +32,4 @@ done
 #done
 
 set +e
+set +x

python/setup.cfg

@@ -1,10 +1,10 @@
 [metadata]
 name = erc20-demurrage-token
-version = 0.0.2a1
+version = 0.0.5a2
 description = ERC20 token with redistributed continual demurrage
 author = Louis Holbrook
 author_email = dev@holbrook.no
-url = https://gitlab.com/grassrootseconomics/sarafu-token
+url = https://gitlab.com/ccicnet/erc20-demurrage-token
 keywords =
 	ethereum
 	blockchain

python/tests/test_amounts.py

@@ -13,7 +13,7 @@ from chainlib.eth.tx import receipt
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageDefault
+from erc20_demurrage_token.unittest.base import TestDemurrageDefault
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_basic.py

@@ -18,7 +18,7 @@ from chainlib.eth.block import (
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageDefault
+from erc20_demurrage_token.unittest.base import TestDemurrageDefault
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_cap.py

@@ -18,7 +18,7 @@ from hexathon import (
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageCap
+from erc20_demurrage_token.unittest.base import TestDemurrageCap
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_demurrage_ext.py

@@ -0,0 +1,41 @@
+# 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 erc20_demurrage_token.unittest.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_amount_since_slow(self):
+        d = datetime.datetime.utcnow() - datetime.timedelta(seconds=29, hours=5, minutes=3, days=4)
+        c = DemurrageCalculator(0.00000050105908373373)
+        a = c.amount_since_slow(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()

python/tests/test_growth.py

@@ -18,7 +18,7 @@ from chainlib.eth.block import (
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageDefault
+from erc20_demurrage_token.unittest.base import TestDemurrageDefault
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_period.py

@@ -13,7 +13,7 @@ from chainlib.eth.tx import receipt
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageDefault
+from erc20_demurrage_token.unittest.base import TestDemurrageDefault
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_redistribution.py

@@ -22,7 +22,7 @@ from hexathon import (
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageDefault
+from erc20_demurrage_token.unittest.base import TestDemurrageDefault
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_redistribution_unit.py

@@ -21,7 +21,7 @@ from hexathon import (
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageUnit
+from erc20_demurrage_token.unittest.base import TestDemurrageUnit
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_remainder.py

@@ -16,7 +16,7 @@ import eth_tester
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageDefault
+from erc20_demurrage_token.unittest.base import TestDemurrageDefault
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

python/tests/test_single.py

@@ -18,7 +18,7 @@ from hexathon import (
 from erc20_demurrage_token import DemurrageToken
 
 # test imports
-from tests.base import TestDemurrageSingle
+from erc20_demurrage_token.unittest.base import TestDemurrageSingle
 
 logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()

solidity/DemurrageTokenMultiCap.sol

@@ -61,6 +61,9 @@ contract DemurrageTokenMultiCap {
 	// (this constant x 1000000 is contained within 128 bits)
 	uint256 constant ppmDivider = 100000000000000000000000000000000;
 
+	// demurrage decimal width; 38 places
+	uint256 public immutable resolutionFactor = ppmDivider * 1000000;
+
 	// Timestamp of start of periods (time which contract constructor was called)
 	uint256 public immutable periodStart;
 

solidity/DemurrageTokenMultiNocap.sol

@@ -56,6 +56,9 @@ contract DemurrageTokenMultiNocap {
 	// (this constant x 1000000 is contained within 128 bits)
 	uint256 constant ppmDivider = 100000000000000000000000000000000;
 
+	// demurrage decimal width; 38 places
+	uint256 public immutable resolutionFactor = ppmDivider * 1000000;
+
 	// Timestamp of start of periods (time which contract constructor was called)
 	uint256 public immutable periodStart;
 

solidity/DemurrageTokenSingleCap.sol

@@ -56,7 +56,7 @@ contract DemurrageTokenSingleCap {
 	uint256 constant growthResolutionFactor = 1000000000000;
 
 	// demurrage decimal width; 38 places
-	uint256 immutable resolutionFactor = nanoDivider * growthResolutionFactor; 
+	uint256 public immutable resolutionFactor = nanoDivider * growthResolutionFactor; 
 
 	// Timestamp of start of periods (time which contract constructor was called)
 	uint256 public immutable periodStart;

solidity/DemurrageTokenSingleNocap.sol

@@ -53,7 +53,7 @@ contract DemurrageTokenSingleCap {
 	uint256 constant growthResolutionFactor = 1000000000000;
 
 	// demurrage decimal width; 38 places
-	uint256 immutable resolutionFactor = nanoDivider * growthResolutionFactor; 
+	uint256 public immutable resolutionFactor = nanoDivider * growthResolutionFactor; 
 
 	// Timestamp of start of periods (time which contract constructor was called)
 	uint256 public immutable periodStart;