WIP test burn over time
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@ -13,6 +13,7 @@ for m in ${modes[@]}; do
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ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_growth.py
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ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_amounts.py
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ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_single.py
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ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_burn.py
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done
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#modes=(SingleCap) # other contracts need to be updted
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@ -18,16 +18,34 @@ from chainlib.eth.block import (
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from erc20_demurrage_token import DemurrageToken
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# test imports
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from erc20_demurrage_token.unittest.base import TestDemurrageDefault
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from erc20_demurrage_token.unittest.base import TestDemurrage
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logging.basicConfig(level=logging.DEBUG)
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logging.basicConfig(level=logging.INFO)
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logg = logging.getLogger()
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testdir = os.path.dirname(__file__)
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class TestBurn(TestDemurrageDefault):
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class TestBurn(TestDemurrage):
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def setUp(self):
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super(TestBurn, self).setUp()
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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self.mode = os.environ.get('ERC20_DEMURRAGE_TOKEN_TEST_MODE')
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if self.mode == None:
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self.mode = 'MultiNocap'
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logg.debug('executing test setup default mode {}'.format(self.mode))
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self.deployer.settings.sink_address = self.accounts[9]
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self.deployer.sink_address = self.accounts[9]
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self.deploy(c, self.mode)
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logg.info('deployed with mode {}'.format(self.mode))
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def test_burn_basic(self):
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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@ -191,5 +209,88 @@ class TestBurn(TestDemurrageDefault):
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self.assert_within_lower(sink_bal, bal, 0.09) # TODO is this ok variance, 1.0 is ppm?
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def test_burn_accumulate(self):
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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(tx_hash, o) = c.add_minter(self.address, self.accounts[0], self.sink_address)
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self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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self.assertEqual(r['status'], 1)
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.sink_address, self.default_supply)
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r = self.rpc.do(o)
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nonce_oracle = RPCNonceOracle(self.sink_address, self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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(tx_hash, o) = c.transfer(self.address, self.sink_address, self.accounts[1], int(self.default_supply / 2))
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r = self.rpc.do(o)
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new_supply = None
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burn_rate = 1000
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sink_bal = None
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bob_bal = None
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bob_refund = None
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o = c.balance(self.address, self.accounts[1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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bob_bal = c.parse_balance(r)
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prev_bob_bal = bob_bal
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for i in range(1, 101):
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nonce_oracle = RPCNonceOracle(self.sink_address, self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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if bob_refund != None:
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(tx_hash, o) = c.transfer(self.address, self.sink_address, self.accounts[1], bob_refund)
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r = self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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self.assertEqual(r['status'], 1)
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(tx_hash, o) = c.burn(self.address, self.sink_address, burn_rate)
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r = self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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self.assertEqual(r['status'], 1)
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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o = c.total_supply(self.address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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new_supply = c.parse_total_supply(r)
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self.backend.time_travel(self.start_time + (self.period_seconds * i))
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(tx_hash, o) = c.change_period(self.address, self.accounts[0])
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self.rpc.do(o)
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o = c.balance(self.address, self.accounts[1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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bob_bal = c.parse_balance(r)
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bob_refund = prev_bob_bal - bob_bal
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o = c.balance(self.address, self.sink_address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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burner_bal = c.parse_balance(r)
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o = c.total_burned(self.address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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total_burned = c.parse_balance(r)
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o = c.to_base_amount(self.address, total_burned, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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total_burned_base = c.parse_balance(r)
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expected_supply = self.default_supply - (burn_rate * i)
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logg.info('checking burn round {} balance burner {} bob {} supply {} expected {} burned {} base {}'.format(i, burner_bal, bob_bal, new_supply, expected_supply, total_burned, total_burned_base))
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self.assertEqual(new_supply, expected_supply)
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sum_supply = burner_bal + bob_bal
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logg.debug('balances sink {} bob {} total {} supply real {} original {}'.format(sink_bal, bob_bal, sum_supply, new_supply, self.default_supply))
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if __name__ == '__main__':
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unittest.main()
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@ -24,7 +24,7 @@ from erc20_demurrage_token import DemurrageToken
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# test imports
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from erc20_demurrage_token.unittest.base import TestDemurrageDefault
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logging.basicConfig(level=logging.DEBUG)
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logging.basicConfig(level=logging.INFO)
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logg = logging.getLogger()
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testdir = os.path.dirname(__file__)
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@ -88,18 +88,31 @@ class TestRedistribution(TestDemurrageDefault):
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[0], supply)
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self.rpc.do(o)
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self.backend.time_travel(self.start_time + (self.period_seconds * 10))
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self.backend.time_travel(self.start_time + (self.period_seconds * 100))
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for i in range(1, 11):
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logg.debug('checking period {}'.format(i))
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balance_minter = None
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balance_sink = None
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real_supply = None
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for i in range(1, 101):
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(tx_hash, o) = c.change_period(self.address, self.accounts[0])
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self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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self.assertEqual(r['status'], 1)
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i = 10
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o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance_sink = c.parse_balance(r)
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o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance_minter = c.parse_balance(r)
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real_supply = balance_sink + balance_minter
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logg.info('period {} testing sink {} mint {} adds up to supply {} of original {} (delta {})'.format(i, balance_sink, balance_minter, real_supply, supply, supply - real_supply))
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i = 100
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o = c.redistributions(self.address, i, sender_address=self.accounts[0])
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redistribution = self.rpc.do(o)
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@ -122,7 +135,7 @@ class TestRedistribution(TestDemurrageDefault):
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r = self.rpc.do(o)
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balance_minter = c.parse_balance(r)
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logg.debug('testing sink {} mint {} adds up to supply {} with demurrage between {} and {}'.format(balance_sink, balance_minter, supply, demurrage_previous, demurrage))
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logg.debug('testing sink {} mint {} adds up to supply {} with demurrage between {} and {}'.format(balance_sink, balance_minter, real_supply, demurrage_previous, demurrage))
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self.assert_within_lower(balance_minter + balance_sink, supply, 0.001)
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@ -11,7 +11,7 @@ contract DemurrageTokenSingleCap {
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uint8 constant shiftRedistributionValue = 32;
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uint256 constant maskRedistributionValue = 0x00000000000000000000000000000000000000ffffffffffffffffff00000000; // ((1 << 72) - 1) << 32
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uint8 constant shiftRedistributionDemurrage = 104;
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uint256 constant maskRedistributionDemurrage = 0x0000000000ffffffffffffffffffffffffffff00000000000000000000000000; // ((1 << 20) - 1) << 140
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uint256 constant maskRedistributionDemurrage = 0x0000000000ffffffffffffffffffffffffffff00000000000000000000000000; // ((1 << 36) - 1) << 140
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// Account balances
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mapping (address => uint256) account;
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