mirror of
git://holbrook.no/erc20-demurrage-token
synced 2026-04-27 02:27:15 +02:00
Use timestamps instead of blocks
This commit is contained in:
Louis Holbrook
@@ -3,6 +3,7 @@ import os
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import unittest
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import json
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import logging
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import datetime
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# third-party imports
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import web3
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@@ -18,9 +19,11 @@ logging.getLogger('eth.vm').setLevel(logging.WARNING)
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testdir = os.path.dirname(__file__)
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#BLOCKTIME = 5 # seconds
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TAX_LEVEL = 10000 * 2 # 2%
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TAX_LEVEL = int(10000 * 2) # 2%
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# calc "1-(0.98)^(1/518400)" <- 518400 = 30 days of blocks
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# 0.00000003897127107225
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#PERIOD = int(60/BLOCKTIME) * 60 * 24 * 30 # month
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PERIOD = 10
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PERIOD = 1
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class Test(unittest.TestCase):
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@@ -48,12 +51,15 @@ class Test(unittest.TestCase):
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self.sink_address = self.w3.eth.accounts[9]
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c = self.w3.eth.contract(abi=self.abi, bytecode=self.bytecode)
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tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL, PERIOD, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
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tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL * (10 ** 32), PERIOD, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.contract = self.w3.eth.contract(abi=self.abi, address=r.contractAddress)
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self.start_block = self.w3.eth.blockNumber
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b = self.w3.eth.getBlock(self.start_block)
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self.start_time = b['timestamp']
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def tearDown(self):
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pass
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@@ -61,10 +67,31 @@ class Test(unittest.TestCase):
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def test_hello(self):
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self.assertEqual(self.contract.functions.actualPeriod().call(), 1)
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self.eth_tester.mine_blocks(PERIOD)
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self.eth_tester.time_travel(self.start_time + 61)
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self.assertEqual(self.contract.functions.actualPeriod().call(), 2)
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def test_apply_demurrage(self):
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modifier = 10 * (10 ** 37)
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demurrage_modifier = self.contract.functions.demurrageModifier().call()
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demurrage_modifier &= (1 << 128) - 1
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self.assertEqual(modifier, demurrage_modifier)
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self.eth_tester.time_travel(self.start_time + 59)
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demurrage_modifier = self.contract.functions.demurrageModifier().call()
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demurrage_modifier &= (1 << 128) - 1
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self.assertEqual(modifier, demurrage_modifier)
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self.eth_tester.time_travel(self.start_time + 61)
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tx_hash = self.contract.functions.applyDemurrage().transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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demurrage_modifier = self.contract.functions.demurrageModifier().call()
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demurrage_modifier &= (1 << 128) - 1
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self.assertEqual(int(98 * (10 ** 36)), demurrage_modifier)
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def test_mint(self):
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 1024).transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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@@ -80,6 +107,26 @@ class Test(unittest.TestCase):
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balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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self.assertEqual(balance, 2000)
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self.eth_tester.time_travel(self.start_time + 61)
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balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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self.assertEqual(balance, int(2000 * 0.98))
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def test_base_amount(self):
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 1000).transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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self.eth_tester.time_travel(self.start_time + 61)
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self.contract.functions.applyDemurrage().transact()
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demurrage_modifier = self.contract.functions.demurrageModifier().call()
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demurrage_amount = self.contract.functions.toDemurrageAmount(demurrage_modifier).call()
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logg.debug('d {} {}'.format(demurrage_modifier.to_bytes(32, 'big').hex(), demurrage_amount))
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a = self.contract.functions.toBaseAmount(1000).call();
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self.assertEqual(a, 1020)
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def test_transfer(self):
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 1024).transact()
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@@ -128,60 +175,5 @@ class Test(unittest.TestCase):
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self.assertEqual(balance_alice, 500)
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def test_apply_tax(self):
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self.eth_tester.mine_blocks(PERIOD)
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tx_hash = self.contract.functions.applyTax().transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(self.contract.functions.redistributionCount().call(), 2)
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self.assertEqual(self.contract.functions.demurrageModifier().call(), 980000)
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self.eth_tester.mine_blocks(PERIOD)
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tx_hash = self.contract.functions.applyTax().transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(self.contract.functions.redistributionCount().call(), 3)
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self.assertEqual(self.contract.functions.demurrageModifier().call(), 960400)
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def test_tax_balance(self):
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 1000).transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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self.eth_tester.mine_blocks(PERIOD)
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tx_hash = self.contract.functions.applyTax().transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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self.assertEqual(balance, 980)
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def test_taxed_transfer(self):
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 1000000).transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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self.eth_tester.mine_blocks(PERIOD)
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tx_hash = self.contract.functions.applyTax().transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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balance_alice = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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self.assertEqual(balance_alice, 980000)
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tx_hash = self.contract.functions.transfer(self.w3.eth.accounts[2], 500000).transact({'from': self.w3.eth.accounts[1]})
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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logg.debug('r {}'.format(r))
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self.assertEqual(r.status, 1)
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balance_alice = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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balance_alice_trunc = int(balance_alice/1000)*1000
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self.assertEqual(balance_alice_trunc, 480000)
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balance_bob = self.contract.functions.balanceOf(self.w3.eth.accounts[2]).call()
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balance_bob_trunc = int(balance_bob/1000)*1000
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self.assertEqual(balance_bob_trunc, 500000)
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if __name__ == '__main__':
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unittest.main()
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80
python/tests/test_period.py
Normal file
80
python/tests/test_period.py
Normal file
@@ -0,0 +1,80 @@
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# standard imports
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import os
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import unittest
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import json
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import logging
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# third-party imports
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import web3
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import eth_tester
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import eth_abi
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logging.basicConfig(level=logging.DEBUG)
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logg = logging.getLogger()
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logging.getLogger('web3').setLevel(logging.WARNING)
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logging.getLogger('eth.vm').setLevel(logging.WARNING)
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testdir = os.path.dirname(__file__)
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#BLOCKTIME = 5 # seconds
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TAX_LEVEL = 10000 * 2 # 2%
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#PERIOD = int(60/BLOCKTIME) * 60 * 24 * 30 # month
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PERIOD = 1
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class Test(unittest.TestCase):
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contract = None
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def setUp(self):
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eth_params = eth_tester.backends.pyevm.main.get_default_genesis_params({
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'gas_limit': 9000000,
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})
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f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.bin'), 'r')
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self.bytecode = f.read()
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f.close()
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f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.json'), 'r')
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self.abi = json.load(f)
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f.close()
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backend = eth_tester.PyEVMBackend(eth_params)
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self.eth_tester = eth_tester.EthereumTester(backend)
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provider = web3.Web3.EthereumTesterProvider(self.eth_tester)
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self.w3 = web3.Web3(provider)
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self.sink_address = self.w3.eth.accounts[9]
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c = self.w3.eth.contract(abi=self.abi, bytecode=self.bytecode)
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tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL * (10 ** 32), PERIOD, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.contract = self.w3.eth.contract(abi=self.abi, address=r.contractAddress)
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self.start_block = self.w3.eth.blockNumber
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b = self.w3.eth.getBlock(self.start_block)
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self.start_time = b['timestamp']
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def tearDown(self):
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pass
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def test_period(self):
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 1024).transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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self.eth_tester.time_travel(self.start_time + 61)
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tx_hash = self.contract.functions.changePeriod().transact()
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.assertEqual(r.status, 1)
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redistribution = self.contract.functions.redistributions(1).call()
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self.assertEqual(2, self.contract.functions.toRedistributionPeriod(redistribution).call())
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self.assertEqual(2, self.contract.functions.actualPeriod().call())
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if __name__ == '__main__':
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unittest.main()
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107
python/tests/test_pure.py
Normal file
107
python/tests/test_pure.py
Normal file
@@ -0,0 +1,107 @@
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# standard imports
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import os
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import unittest
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import json
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import logging
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import math
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# third-party imports
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import web3
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import eth_tester
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import eth_abi
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logging.basicConfig(level=logging.DEBUG)
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logg = logging.getLogger()
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logging.getLogger('web3').setLevel(logging.WARNING)
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logging.getLogger('eth.vm').setLevel(logging.WARNING)
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testdir = os.path.dirname(__file__)
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#BLOCKTIME = 5 # seconds
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TAX_LEVEL = int((10000 * 2) * (10 ** 32)) # 2%
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PERIOD = 10
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class Test(unittest.TestCase):
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contract = None
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def setUp(self):
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eth_params = eth_tester.backends.pyevm.main.get_default_genesis_params({
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'gas_limit': 9000000,
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})
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f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.bin'), 'r')
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self.bytecode = f.read()
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f.close()
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f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.json'), 'r')
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self.abi = json.load(f)
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f.close()
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backend = eth_tester.PyEVMBackend(eth_params)
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self.eth_tester = eth_tester.EthereumTester(backend)
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provider = web3.Web3.EthereumTesterProvider(self.eth_tester)
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self.w3 = web3.Web3(provider)
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self.sink_address = self.w3.eth.accounts[9]
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c = self.w3.eth.contract(abi=self.abi, bytecode=self.bytecode)
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tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL, PERIOD, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.contract = self.w3.eth.contract(abi=self.abi, address=r.contractAddress)
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self.start_block = self.w3.eth.blockNumber
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def tearDown(self):
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pass
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def test_tax_period(self):
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t = self.contract.functions.taxLevel().call()
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logg.debug('taxlevel {}'.format(t))
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a = self.contract.functions.toTaxPeriodAmount(1000000, 0).call()
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self.assertEqual(a, 1000000)
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a = self.contract.functions.toTaxPeriodAmount(1000000, 1).call()
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self.assertEqual(a, 980000)
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a = self.contract.functions.toTaxPeriodAmount(1000000, 2).call()
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self.assertEqual(a, 960400)
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a = self.contract.functions.toTaxPeriodAmount(980000, 1).call()
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self.assertEqual(a, 960400)
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def test_fractional_state(self):
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with self.assertRaises(eth_tester.exceptions.TransactionFailed):
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self.contract.functions.remainder(2, 1).call();
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with self.assertRaises(eth_tester.exceptions.TransactionFailed):
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remainder = self.contract.functions.remainder(0, 100001).call();
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remainder = self.contract.functions.remainder(1, 2).call();
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self.assertEqual(remainder, 0);
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whole = 5000001
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parts = 20000
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expect = whole - (math.floor(whole/parts) * parts)
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remainder = self.contract.functions.remainder(parts, whole).call();
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self.assertEqual(remainder, expect)
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parts = 30000
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expect = whole - (math.floor(whole/parts) * parts)
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remainder = self.contract.functions.remainder(parts, whole).call();
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self.assertEqual(remainder, expect)
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parts = 40001
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expect = whole - (math.floor(whole/parts) * parts)
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remainder = self.contract.functions.remainder(parts, whole).call();
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self.assertEqual(remainder, expect)
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if __name__ == '__main__':
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unittest.main()
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198
python/tests/test_redistribution.py
Normal file
198
python/tests/test_redistribution.py
Normal file
@@ -0,0 +1,198 @@
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# standard imports
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import os
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import unittest
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import json
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import logging
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# third-party imports
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import web3
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import eth_tester
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import eth_abi
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logging.basicConfig(level=logging.DEBUG)
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logg = logging.getLogger()
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logging.getLogger('web3').setLevel(logging.WARNING)
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logging.getLogger('eth.vm').setLevel(logging.WARNING)
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testdir = os.path.dirname(__file__)
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#BLOCKTIME = 5 # seconds
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TAX_LEVEL = 10000 * 2 # 2%
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#PERIOD = int(60/BLOCKTIME) * 60 * 24 * 30 # month
|
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PERIOD = 1
|
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class Test(unittest.TestCase):
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contract = None
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def setUp(self):
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eth_params = eth_tester.backends.pyevm.main.get_default_genesis_params({
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'gas_limit': 9000000,
|
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})
|
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|
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f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.bin'), 'r')
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self.bytecode = f.read()
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f.close()
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f = open(os.path.join(testdir, '../../solidity/RedistributedDemurrageToken.json'), 'r')
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self.abi = json.load(f)
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f.close()
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backend = eth_tester.PyEVMBackend(eth_params)
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self.eth_tester = eth_tester.EthereumTester(backend)
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provider = web3.Web3.EthereumTesterProvider(self.eth_tester)
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self.w3 = web3.Web3(provider)
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self.sink_address = self.w3.eth.accounts[9]
|
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c = self.w3.eth.contract(abi=self.abi, bytecode=self.bytecode)
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tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL * (10 ** 32), PERIOD, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
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r = self.w3.eth.getTransactionReceipt(tx_hash)
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self.contract = self.w3.eth.contract(abi=self.abi, address=r.contractAddress)
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self.start_block = self.w3.eth.blockNumber
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b = self.w3.eth.getBlock(self.start_block)
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self.start_time = b['timestamp']
|
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def tearDown(self):
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pass
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||||
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def debug_periods(self):
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pactual = self.contract.functions.actualPeriod().call()
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pstart = self.contract.functions.periodStart().call()
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pduration = self.contract.functions.periodDuration().call()
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blocknumber = self.w3.eth.blockNumber;
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logg.debug('actual {} start {} duration {} blocknumber {}'.format(pactual, pstart, pduration, blocknumber))
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# TODO: check receipt log outputs
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def test_redistribution_storage(self):
|
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self.contract.functions.mintTo(self.w3.eth.accounts[1], 1000000).transact()
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self.contract.functions.mintTo(self.w3.eth.accounts[2], 1000000).transact()
|
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|
||||
external_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
|
||||
tx_hash = self.contract.functions.transfer(external_address, 1000000).transact({'from': self.w3.eth.accounts[2]})
|
||||
tx_hash = self.contract.functions.transfer(external_address, 999999).transact({'from': self.w3.eth.accounts[1]})
|
||||
r = self.w3.eth.getTransactionReceipt(tx_hash)
|
||||
logg.debug('tx before {}'.format(r))
|
||||
self.assertEqual(r.status, 1)
|
||||
|
||||
self.eth_tester.time_travel(self.start_time + 61)
|
||||
|
||||
redistribution = self.contract.functions.redistributions(0).call();
|
||||
self.assertEqual(redistribution.hex(), '000000000100000000000000000000000000000000001e848000000000000001')
|
||||
|
||||
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')
|
||||
|
||||
|
||||
def test_redistribution_balance_on_zero_participants(self):
|
||||
supply = 1000000000000
|
||||
tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], supply).transact()
|
||||
r = self.w3.eth.getTransactionReceipt(tx_hash)
|
||||
|
||||
self.eth_tester.time_travel(self.start_time + 61)
|
||||
|
||||
tx_hash = self.contract.functions.applyDemurrage().transact()
|
||||
r = self.w3.eth.getTransactionReceipt(tx_hash)
|
||||
logg.debug('r {}'.format(r))
|
||||
self.assertEqual(r.status, 1)
|
||||
tx_hash = self.contract.functions.changePeriod().transact()
|
||||
rr = self.w3.eth.getTransactionReceipt(tx_hash)
|
||||
self.assertEqual(rr.status, 1)
|
||||
|
||||
redistribution = self.contract.functions.redistributions(0).call();
|
||||
supply = self.contract.functions.totalSupply().call()
|
||||
|
||||
sink_increment = int(supply * (TAX_LEVEL / 1000000))
|
||||
for l in r['logs']:
|
||||
if l.topics[0].hex() == '0xa0717e54e02bd9829db5e6e998aec0ae9de796b8d150a3cc46a92ab869697755': # event Decayed(uint256,uint256,uint256,uint256)
|
||||
period = int.from_bytes(l.topics[1], 'big')
|
||||
self.assertEqual(period, 2)
|
||||
b = bytes.fromhex(l.data[2:])
|
||||
remainder = int.from_bytes(b, 'big')
|
||||
self.assertEqual(remainder, int((1000000 - TAX_LEVEL) * (10 ** 32)))
|
||||
logg.debug('period {} remainder {}'.format(period, remainder))
|
||||
|
||||
sink_balance = self.contract.functions.balanceOf(self.sink_address).call()
|
||||
logg.debug('{} {}'.format(sink_increment, sink_balance))
|
||||
self.assertEqual(sink_balance, int(sink_increment * 0.98))
|
||||
self.assertEqual(sink_balance, int(sink_increment * (1000000 - TAX_LEVEL) / 1000000))
|
||||
|
||||
balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
|
||||
self.assertEqual(balance, supply - sink_increment)
|
||||
|
||||
|
||||
def test_redistribution_two_of_ten(self):
|
||||
mint_amount = 100000000
|
||||
z = 0
|
||||
for i in range(10):
|
||||
self.contract.functions.mintTo(self.w3.eth.accounts[i], mint_amount).transact()
|
||||
z += mint_amount
|
||||
|
||||
initial_balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
|
||||
|
||||
spend_amount = 1000000
|
||||
external_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
|
||||
self.contract.functions.transfer(external_address, spend_amount).transact({'from': self.w3.eth.accounts[1]})
|
||||
tx_hash = self.contract.functions.transfer(external_address, spend_amount).transact({'from': self.w3.eth.accounts[2]})
|
||||
r = self.w3.eth.getTransactionReceipt(tx_hash)
|
||||
# No cheating!
|
||||
self.contract.functions.transfer(self.w3.eth.accounts[3], spend_amount).transact({'from': self.w3.eth.accounts[3]})
|
||||
# Cheapskate!
|
||||
self.contract.functions.transfer(external_address, spend_amount-1).transact({'from': self.w3.eth.accounts[4]})
|
||||
|
||||
self.assertEqual(r.status, 1)
|
||||
|
||||
self.eth_tester.time_travel(self.start_time + 61)
|
||||
|
||||
self.contract.functions.applyDemurrage().transact()
|
||||
self.contract.functions.changePeriod().transact()
|
||||
|
||||
bummer_balance = self.contract.functions.balanceOf(self.w3.eth.accounts[3]).call()
|
||||
self.assertEqual(bummer_balance, mint_amount - (mint_amount * (TAX_LEVEL / 1000000)))
|
||||
logg.debug('bal {} '.format(bummer_balance))
|
||||
|
||||
bummer_balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
|
||||
spender_balance = mint_amount - spend_amount
|
||||
spender_decayed_balance = int(spender_balance - (spender_balance * (TAX_LEVEL / 1000000)))
|
||||
self.assertEqual(bummer_balance, spender_decayed_balance)
|
||||
logg.debug('bal {} '.format(bummer_balance))
|
||||
|
||||
tx_hash = self.contract.functions.applyRedistributionOnAccount(self.w3.eth.accounts[1]).transact()
|
||||
r = self.w3.eth.getTransactionReceipt(tx_hash)
|
||||
logg.debug('log {}'.format(r.logs))
|
||||
|
||||
self.contract.functions.applyRedistributionOnAccount(self.w3.eth.accounts[2]).transact()
|
||||
|
||||
redistribution_data = self.contract.functions.redistributions(0).call()
|
||||
logg.debug('redist data {}'.format(redistribution_data.hex()))
|
||||
|
||||
account_period_data = self.contract.functions.accountPeriod(self.w3.eth.accounts[1]).call()
|
||||
logg.debug('account period {}'.format(account_period_data))
|
||||
|
||||
actual_period = self.contract.functions.actualPeriod().call()
|
||||
logg.debug('period {}'.format(actual_period))
|
||||
|
||||
redistribution = int((z / 2) * (TAX_LEVEL / 1000000))
|
||||
spender_new_base_balance = ((mint_amount - spend_amount) + redistribution)
|
||||
spender_new_decayed_balance = int(spender_new_base_balance - (spender_new_base_balance * (TAX_LEVEL / 1000000)))
|
||||
|
||||
spender_actual_balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
|
||||
logg.debug('rrr {} {}'.format(redistribution, spender_new_decayed_balance))
|
||||
|
||||
self.assertEqual(spender_actual_balance, spender_new_decayed_balance)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
|
||||
|
||||
Reference in New Issue
Block a user