Cache demurrage modifier in redistribution data

python/tests/bench.py

@@ -0,0 +1,72 @@
+# standard imports
+import os
+import unittest
+import json
+import logging
+
+# third-party imports
+import web3
+import eth_tester
+import eth_abi
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+logging.getLogger('web3').setLevel(logging.WARNING)
+logging.getLogger('eth.vm').setLevel(logging.WARNING)
+
+testdir = os.path.dirname(__file__)
+
+TAX_LEVEL = 10000 * 2 # 2%
+
+
+class Test(unittest.TestCase):
+
+    contract = None
+
+    def setUp(self):
+        eth_params = eth_tester.backends.pyevm.main.get_default_genesis_params({
+            'gas_limit': 9000000,
+            })
+
+        f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.bin'), 'r')
+        self.bytecode = f.read()
+        f.close()
+
+        f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.json'), 'r')
+        self.abi = json.load(f)
+        f.close()
+
+        backend = eth_tester.PyEVMBackend(eth_params)
+        self.eth_tester =  eth_tester.EthereumTester(backend)
+        provider = web3.Web3.EthereumTesterProvider(self.eth_tester)
+        self.w3 = web3.Web3(provider)
+        self.sink_address = self.w3.eth.accounts[9]
+
+    def tearDown(self):
+        pass
+
+
+    def test_gas_changeperiod(self):
+        period = 43200
+        for i in range(5):
+            c = self.w3.eth.contract(abi=self.abi, bytecode=self.bytecode)
+            tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL * (10 ** 32), period, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
+            r = self.w3.eth.getTransactionReceipt(tx_hash)
+            contract = self.w3.eth.contract(abi=self.abi, address=r.contractAddress)
+
+            start_block = self.w3.eth.blockNumber
+            b = self.w3.eth.getBlock(start_block)
+            start_time = b['timestamp']
+
+            period_seconds = period * 60
+            self.eth_tester.time_travel(start_time + period_seconds + (60 * (10 ** i)))
+            tx_hash = contract.functions.changePeriod().transact()
+            r = self.w3.eth.getTransactionReceipt(tx_hash)
+
+            print('{} ({}): {}'.format(i, 60 * (10 ** i), r['gasUsed']))
+
+if __name__ == '__main__':
+    unittest.main()
+
+ 

python/tests/test_redistribution.py

@@ -84,14 +84,14 @@ class Test(unittest.TestCase):
         self.eth_tester.time_travel(self.start_time + 61)
 
         redistribution = self.contract.functions.redistributions(0).call();
-        self.assertEqual(redistribution.hex(), '000000000100000000000000000000000000000000001e848000000000000001')
+        self.assertEqual(redistribution.hex(), '000000000000000000000000f42400000000010000000000001e848000000001')
 
         tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[0], 1000000).transact()
         r = self.w3.eth.getTransactionReceipt(tx_hash)
         self.assertEqual(r.status, 1)
 
         redistribution = self.contract.functions.redistributions(1).call()
-        self.assertEqual(redistribution.hex(), '000000000000000000000000000000000000000000002dc6c000000000000002')
+        self.assertEqual(redistribution.hex(), '000000000000000000000000ef4200000000000000000000002dc6c000000002')
     
 
     def test_redistribution_balance_on_zero_participants(self):