Bump chainlib eth minor version

Bumps versions of deps and dep.

See merge request cicnet/erc20-demurrage-token!6

python/CHANGELOG

@@ -1,4 +1,7 @@
-- 0.0.2-pending
+- 0.0.9
+	* Fix wrong redistribution calculation in single nocap
+[...]
+- 0.0.2
 	* Move to chainlib-eth
 - 0.0.1-unreleased
 	* Interface for redistributed and non-redistributed, with or without cap

python/erc20_demurrage_token/runnable/deploy.py

@@ -14,8 +14,8 @@ import logging
 
 # external imports
 import confini
-from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
-from crypto_dev_signer.keystore.dict import DictKeystore
+from funga.eth.signer import EIP155Signer
+from funga.eth.keystore.dict import DictKeystore
 from chainlib.chain import ChainSpec
 from chainlib.eth.nonce import (
         RPCNonceOracle,

python/erc20_demurrage_token/sim/sim.py

@@ -20,8 +20,8 @@ from chainlib.eth.block import (
         block_by_number,
         block_by_hash,
         )
-from crypto_dev_signer.keystore.dict import DictKeystore
-from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
+from funga.eth.keystore.dict import DictKeystore
+from funga.eth.signer import EIP155Signer
 from hexathon import (
         strip_0x,
         add_0x,

python/erc20_demurrage_token/token.py

@@ -325,8 +325,19 @@ class DemurrageToken(ERC20):
         return o
 
 
-    def apply_demurrage(self, contract_address, sender_address):
-        return self.transact_noarg('applyDemurrage', contract_address, sender_address)
+    def apply_demurrage(self, contract_address, sender_address, limit=0, tx_format=TxFormat.JSONRPC):
+        if limit == 0:
+            return self.transact_noarg('applyDemurrage', contract_address, sender_address)
+
+        enc = ABIContractEncoder()
+        enc.method('applyDemurrageLimited')
+        enc.typ(ABIContractType.UINT256)
+        enc.uint256(limit)
+        data = enc.get()
+        tx = self.template(sender_address, contract_address, use_nonce=True)
+        tx = self.set_code(tx, data)
+        tx = self.finalize(tx, tx_format)
+        return tx
 
 
     def change_period(self, contract_address, sender_address):

python/requirements.txt

@@ -1,3 +1,3 @@
-chainlib>=0.0.9a3,<=0.1.0
-eth-erc20>=0.1.2a1,<0.2.0
-crypto-dev-signer>=0.4.15a1,<=0.4.15
+chainlib-eth>=0.0.27,<=0.1.0
+eth-erc20~=0.1.11
+funga-eth~=0.5.6

python/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = erc20-demurrage-token
-version = 0.0.5a2
+version = 0.1.0
 description = ERC20 token with redistributed continual demurrage
 author = Louis Holbrook
 author_email = dev@holbrook.no

python/tests/test_basic.py

@@ -28,179 +28,206 @@ testdir = os.path.dirname(__file__)
 
 class TestBasic(TestDemurrageDefault):
 
-#    def test_hello(self):
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        o = c.actual_period(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        
-#        self.backend.time_travel(self.start_time + self.period_seconds + 1)
-#        o = c.actual_period(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#
-#
-#    def test_balance(self):
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
-#        r = self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        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, 1024)
-#
-#
-#    def test_apply_demurrage(self):
-#        modifier = (10 ** 38)
-#
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#
-#        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        demurrage_amount = c.parse_demurrage_amount(r)
-#        self.assertEqual(modifier, demurrage_amount)
-#
-#        o = block_latest()
-#        r = self.rpc.do(o)
-#        o = block_by_number(r)
-#        b = self.rpc.do(o)
-#        logg.debug('block {} start {}'.format(b['timestamp'], self.start_time))
-#
-#        self.backend.time_travel(self.start_time + 2)
-#        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        demurrage_amount = c.parse_demurrage_amount(r)
-#        self.assertEqual(modifier, demurrage_amount)
-#
-#        self.backend.time_travel(self.start_time + 61)
-#        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        demurrage_amount = c.parse_demurrage_amount(r)
-#        modifier_base = 1000000 - self.tax_level
-#        logg.debug('modifier base {}'.format(modifier_base))
-#        modifier = int(modifier_base * (10 ** 32)) # 38 decimal places minus 6 (1000000)
-#        self.assertEqual(modifier, demurrage_amount)
-#
-#        self.backend.time_travel(self.start_time + 601)
-#        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        demurrage_amount = c.parse_demurrage_amount(r)
-#        modifier_base = ((1000000 - self.tax_level) / 1000000) ** 10
-#        modifier = int(modifier_base * (10 ** 12))
-#
-#        rounding_tolerance_nano = 4000000 # 0.000004% precision
-#        demurrage_amount_truncate = int(demurrage_amount / (10 ** 26)) # equals 12 decimal places
-#        self.assertGreaterEqual(modifier, demurrage_amount_truncate - rounding_tolerance_nano)
-#        self.assertLessEqual(modifier, demurrage_amount_truncate)
-#
-#
-#    def test_mint(self):
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
-#        r = self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        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, 1024)
-#
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 976)
-#        r = self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        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, 2000)
-#
-#
-#        self.backend.time_travel(self.start_time + 61)
-#        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
-#        r = self.rpc.do(o)
-#        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, int(2000 * 0.98))
-#
-#
-#    def test_minter_control(self):
-#        nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[1], self.accounts[2], 1024)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 0)
-#            
-#        (tx_hash, o) = c.add_minter(self.address, self.accounts[1], self.accounts[1])
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 0)
-#
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.add_minter(self.address, self.accounts[0], self.accounts[1])
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[1], self.accounts[2], 1024)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        (tx_hash, o) = c.add_minter(self.address, self.accounts[1], self.accounts[2])
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 0)
-#
-#        (tx_hash, o) = c.remove_minter(self.address, self.accounts[1], self.accounts[1])
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[1], self.accounts[2], 1024)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 0)
-#            
-#
+    def test_hello(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        o = c.actual_period(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        
+        self.backend.time_travel(self.start_time + self.period_seconds + 1)
+        o = c.actual_period(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+
+
+    def test_balance(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        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, 1024)
+
+
+    def test_apply_demurrage_limited(self):
+        modifier = (10 ** 28)
+
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+
+        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        demurrage_amount = c.parse_demurrage_amount(r)
+        self.assertEqual(modifier, demurrage_amount)
+
+        self.backend.time_travel(self.start_time + 120)
+        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0], limit=1)
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        demurrage_amount = c.parse_demurrage_amount(r)
+        modifier_base = 1000000 - self.tax_level
+        modifier = int(modifier_base * (10 ** 22)) # 38 decimal places minus 6 (1000000)
+        self.assertEqual(modifier, demurrage_amount)
+
+
+
+    def test_apply_demurrage(self):
+        modifier = (10 ** 28)
+
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+
+        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        demurrage_amount = c.parse_demurrage_amount(r)
+        self.assertEqual(modifier, demurrage_amount)
+
+        o = block_latest()
+        r = self.rpc.do(o)
+        o = block_by_number(r)
+        b = self.rpc.do(o)
+        logg.debug('block {} start {}'.format(b['timestamp'], self.start_time))
+
+        self.backend.time_travel(self.start_time + 2)
+        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        demurrage_amount = c.parse_demurrage_amount(r)
+        self.assertEqual(modifier, demurrage_amount)
+
+        self.backend.time_travel(self.start_time + 61)
+        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        demurrage_amount = c.parse_demurrage_amount(r)
+        modifier_base = 1000000 - self.tax_level
+        modifier = int(modifier_base * (10 ** 22)) # 38 decimal places minus 6 (1000000)
+        self.assertEqual(modifier, demurrage_amount)
+
+        self.backend.time_travel(self.start_time + 601)
+        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+        o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        demurrage_amount = c.parse_demurrage_amount(r)
+        modifier_base = ((1000000 - self.tax_level) / 1000000) ** 10
+        logg.warning('mod base {}'.format(modifier_base))
+        modifier = int(modifier_base * (10 ** 12))
+
+        rounding_tolerance_nano = 4000000 # 0.000004% precision
+        demurrage_amount_truncate = int(demurrage_amount / (10 ** 16)) # equals 38 decimal places - 14 for the modifier magniture - 2 for percent int calc + 6 for token decimals <- TODO verify this calc
+        self.assertGreaterEqual(modifier, demurrage_amount_truncate - rounding_tolerance_nano)
+        self.assertLessEqual(modifier, demurrage_amount_truncate)
+
+
+    def test_mint(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        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, 1024)
+
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 976)
+        r = self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        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, 2000)
+
+
+        self.backend.time_travel(self.start_time + 61)
+        (tx_hash, o) = c.apply_demurrage(self.address, sender_address=self.accounts[0])
+        r = self.rpc.do(o)
+        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, int(2000 * 0.98))
+
+
+    def test_minter_control(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[1], self.accounts[2], 1024)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 0)
+            
+        (tx_hash, o) = c.add_minter(self.address, self.accounts[1], self.accounts[1])
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 0)
+
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.add_minter(self.address, self.accounts[0], self.accounts[1])
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[1], self.accounts[2], 1024)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        (tx_hash, o) = c.add_minter(self.address, self.accounts[1], self.accounts[2])
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 0)
+
+        (tx_hash, o) = c.remove_minter(self.address, self.accounts[1], self.accounts[1])
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[1], self.accounts[2], 1024)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 0)
+            
+
     def test_base_amount(self):
         nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
         c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
@@ -216,78 +243,78 @@ class TestBasic(TestDemurrageDefault):
         amount = c.parse_to_base_amount(r)
         self.assertEqual(amount, 1020)
 
-#
-#    def test_transfer(self):
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
-#        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[2], 500)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#        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, 524)
-#
-#        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, 500)
-#
-#        nonce_oracle = RPCNonceOracle(self.accounts[2], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.transfer(self.address, self.accounts[2], self.accounts[1], 500)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#
-#       
-#
-#    def test_transfer_from(self):
-#        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
-#        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.approve(self.address, self.accounts[1], self.accounts[2], 500)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-#        
-#        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, 1024)
-#
-#        nonce_oracle = RPCNonceOracle(self.accounts[2], self.rpc)
-#        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-#        (tx_hash, o) = c.transfer_from(self.address, self.accounts[2], self.accounts[1], self.accounts[3], 500)
-#        self.rpc.do(o)
-#        o = receipt(tx_hash)
-#        r = self.rpc.do(o)
-#        self.assertEqual(r['status'], 1)
-# 
-#        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, 524)
-#
-#        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, 500)
+
+    def test_transfer(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
+        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[2], 500)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        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, 524)
+
+        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, 500)
+
+        nonce_oracle = RPCNonceOracle(self.accounts[2], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.transfer(self.address, self.accounts[2], self.accounts[1], 500)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+       
+
+    def test_transfer_from(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], 1024)
+        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.approve(self.address, self.accounts[1], self.accounts[2], 500)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+        
+        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, 1024)
+
+        nonce_oracle = RPCNonceOracle(self.accounts[2], self.rpc)
+        c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.transfer_from(self.address, self.accounts[2], self.accounts[1], self.accounts[3], 500)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+ 
+        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, 524)
+
+        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, 500)
 
 
 if __name__ == '__main__':

solidity/DemurrageTokenSingleCap.sol

@@ -311,6 +311,10 @@ contract DemurrageTokenSingleCap {
 
 	// Calculate and cache the demurrage value corresponding to the (period of the) time of the method call
 	function applyDemurrage() public returns (bool) {
+		return applyDemurrageLimited(0);
+	}
+
+	function applyDemurrageLimited(uint256 _rounds) public returns (bool) {
 		//uint128 epochPeriodCount;
 		uint256 periodCount;
 		uint256 lastDemurrageAmount;
@@ -323,6 +327,12 @@ contract DemurrageTokenSingleCap {
 			return false;
 		}
 		lastDemurrageAmount = demurrageAmount;
+		// safety limit for exponential calculation to ensure that we can always
+		// execute this code no matter how much time passes.			
+		if (_rounds > 0 && _rounds < periodCount) {
+			periodCount = _rounds;
+		}
+
 		demurrageAmount = uint128(decayBy(lastDemurrageAmount, periodCount));
 		//demurragePeriod = epochPeriodCount; 
 		demurrageTimestamp = demurrageTimestamp + (periodCount * 60);

solidity/DemurrageTokenSingleNocap.sol

@@ -278,7 +278,8 @@ contract DemurrageTokenSingleCap {
 	function getDistribution(uint256 _supply, uint256 _demurrageAmount) public view returns (uint256) {
 		uint256 difference;
 
-		difference = _supply * (resolutionFactor - _demurrageAmount); //(nanoDivider - ((resolutionFactor - _demurrageAmount) / nanoDivider));
+		//difference = _supply * (resolutionFactor - _demurrageAmount); //(nanoDivider - ((resolutionFactor - _demurrageAmount) / nanoDivider));
+		difference = _supply * (resolutionFactor - (_demurrageAmount * 10000000000)); //(nanoDivider - ((resolutionFactor - _demurrageAmount) / nanoDivider));
 		return difference / resolutionFactor;
 	}
 
@@ -307,6 +308,10 @@ contract DemurrageTokenSingleCap {
 
 	// Calculate and cache the demurrage value corresponding to the (period of the) time of the method call
 	function applyDemurrage() public returns (bool) {
+		return applyDemurrageLimited(0);
+	}
+
+	function applyDemurrageLimited(uint256 _rounds) public returns (bool) {
 		//uint128 epochPeriodCount;
 		uint256 periodCount;
 		uint256 lastDemurrageAmount;
@@ -319,6 +324,13 @@ contract DemurrageTokenSingleCap {
 			return false;
 		}
 		lastDemurrageAmount = demurrageAmount;
+	
+		// safety limit for exponential calculation to ensure that we can always
+		// execute this code no matter how much time passes.			
+		if (_rounds > 0 && _rounds < periodCount) {
+			periodCount = _rounds;
+		}
+
 		demurrageAmount = uint128(decayBy(lastDemurrageAmount, periodCount));
 		//demurragePeriod = epochPeriodCount; 
 		demurrageTimestamp = demurrageTimestamp + (periodCount * 60);