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git://holbrook.no/erc20-demurrage-token
synced 2024-11-05 10:06:45 +01:00
Add apply tax on mint, transfer
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@ -56,42 +56,42 @@ class Test(unittest.TestCase):
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pass
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def test_period(self):
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def test_hello(self):
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self.assertEqual(self.contract.functions.actualPeriod().call(), 0)
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self.eth_tester.mine_blocks(PERIOD)
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self.assertEqual(self.contract.functions.actualPeriod().call(), 1)
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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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self.assertEqual(r.status, 1);
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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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balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call();
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self.assertEqual(balance, 1024);
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balance = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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self.assertEqual(balance, 1024)
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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 976).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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tx_hash = self.contract.functions.mintTo(self.w3.eth.accounts[1], 976).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, 2000);
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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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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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r = self.w3.eth.getTransactionReceipt(tx_hash);
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self.assertEqual(r.status, 1);
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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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tx_hash = self.contract.functions.transfer(self.w3.eth.accounts[2], 500).transact({'from': self.w3.eth.accounts[1]});
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r = self.w3.eth.getTransactionReceipt(tx_hash);
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self.assertEqual(r.status, 1);
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tx_hash = self.contract.functions.transfer(self.w3.eth.accounts[2], 500).transact({'from': self.w3.eth.accounts[1]})
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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, 524);
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balance_alice = self.contract.functions.balanceOf(self.w3.eth.accounts[1]).call()
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self.assertEqual(balance_alice, 524)
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balance_bob = self.contract.functions.balanceOf(self.w3.eth.accounts[2]).call();
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self.assertEqual(balance_bob, 500);
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balance_bob = self.contract.functions.balanceOf(self.w3.eth.accounts[2]).call()
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self.assertEqual(balance_bob, 500)
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def test_apply_tax(self):
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@ -133,7 +133,7 @@ class Test(unittest.TestCase):
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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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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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@ -148,19 +148,5 @@ class Test(unittest.TestCase):
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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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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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tx_hash = self.contract.functions.transfer(self.w3.eth.accounts[2], 500).transact({'from': self.w3.eth.accounts[1]});
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r = self.w3.eth.getTransactionReceipt(tx_hash);
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self.assertEqual(r.status, 1);
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period = self.contract.functions.accountPeriod(self.w3.eth.accounts[1]).call();
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self.assertEqual(period, 11);
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if __name__ == '__main__':
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unittest.main()
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@ -22,6 +22,7 @@ contract RedistributedDemurrageToken {
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event Transfer(address indexed _from, address indexed _to, uint256 _value);
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event Approval(address indexed _owner, address indexed _spender, uint256 _value);
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event Mint(address indexed _minter, address indexed _beneficiary, uint256 _amount);
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event Debug(uint256 _foo);
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constructor(string memory _name, string memory _symbol, uint32 _taxLevel, uint256 _period) {
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owner = msg.sender;
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@ -63,6 +64,7 @@ contract RedistributedDemurrageToken {
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function decreaseBalance(address _account, uint256 _delta) private returns (bool) {
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uint256 oldBalance = getBaseBalance(_account);
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require(oldBalance >= _delta);
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account[_account] &= bytes20(0x00);
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account[_account] |= bytes32((oldBalance - _delta) & 0x00ffffffffffffffffffffffffffffffffffffffff);
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return true;
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@ -70,7 +72,9 @@ contract RedistributedDemurrageToken {
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function mintTo(address _beneficiary, uint256 _amount) external returns (bool) {
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require(minter[msg.sender]);
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// TODO: get base amount for minting
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applyTax();
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totalSupply += _amount;
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increaseBalance(_beneficiary, _amount);
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emit Mint(msg.sender, _beneficiary, _amount);
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@ -88,7 +92,7 @@ contract RedistributedDemurrageToken {
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}
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function toRedistributionPeriod(bytes32 redistribution) public pure returns (uint256) {
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return uint256(redistribution & bytes7(0xffffffffffffff));
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return uint256(redistribution & 0x00000000000000000000000000000000000000000000000000ffffffffffffff);
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}
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function redistributionCount() public view returns (uint256) {
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@ -104,6 +108,7 @@ contract RedistributedDemurrageToken {
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currentRedistribution &= 0x0000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff;
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currentRedistribution |= participants << 216;
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emit Debug(participants);
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redistributions[redistributions.length-1] = bytes32(currentRedistribution);
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}
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@ -112,19 +117,20 @@ contract RedistributedDemurrageToken {
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currentRedistribution = uint256(redistributions[redistributions.length-1]);
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currentRedistribution &= 0xffffffffff0000000000000000000000000000000000000000ffffffffffffff;
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currentRedistribution |= totalSupply << 56; //& 0x0000000000ffffffffffffffffffffffffffffffffffffffff00000000000000;;
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currentRedistribution |= totalSupply << 56;
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redistributions[redistributions.length-1] = bytes32(currentRedistribution);
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}
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function actualPeriod() public view returns (uint256) {
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return (block.number - periodStart) / periodDuration;
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return (block.number - periodStart) / periodDuration + 1;
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}
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//function checkPeriod() private view returns (bytes32) {
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function checkPeriod() private view returns (bytes32) {
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bytes32 lastRedistribution = redistributions[redistributions.length-1];
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uint256 currentPeriod = this.actualPeriod();
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if (currentPeriod < toRedistributionPeriod(lastRedistribution)) {
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if (currentPeriod <= toRedistributionPeriod(lastRedistribution)) {
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return bytes32(0x00);
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}
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return lastRedistribution;
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@ -137,11 +143,11 @@ contract RedistributedDemurrageToken {
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pendingRedistribution = checkPeriod();
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if (pendingRedistribution == bytes32(0x00)) {
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return demurrageModifier;
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return demurrageModifier;
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}
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demurrageModifier -= (demurrageModifier * taxLevel) / 1000000;
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currentPeriod = toRedistributionPeriod(pendingRedistribution);
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nextRedistribution = toRedistribution(0, currentPeriod + 1, 0);
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nextRedistribution = toRedistribution(0, totalSupply, currentPeriod + 1);
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redistributions.push(nextRedistribution);
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return demurrageModifier;
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}
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@ -161,6 +167,7 @@ contract RedistributedDemurrageToken {
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uint256 baseValue;
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bool result;
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applyTax();
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baseValue = (_value * 1000000) / demurrageModifier;
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result = transferBase(msg.sender, _to, baseValue);
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emit Transfer(msg.sender, _to, _value);
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