mirror of
git://holbrook.no/erc20-demurrage-token
synced 2024-12-22 11:57:32 +01:00
103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
# 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 = 10000 * 2 # 2%
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#PERIOD = int(60/BLOCKTIME) * 60 * 24 * 30 # month
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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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a = self.contract.functions.toTaxPeriodAmount(1000000, 0).call()
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self.assertEqual(1000000, a)
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a = self.contract.functions.toTaxPeriodAmount(1000000, 1).call()
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self.assertEqual(980000, a)
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a = self.contract.functions.toTaxPeriodAmount(1000000, 2).call()
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self.assertEqual(960400, a)
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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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