Files
nym/contracts/basic-bandwidth-generation/contracts/CosmosToken.sol
T
Mx f8fb6f524e Move cleaned up smart contracts to main code repo (#929)
* moved contracts from gitlab to main codebase

* added missing event param

* removed erroneous  from description

* updates:
* changed maths of token -> MB conversion
* new tests for changed maths
* length check on cosmos address
* begun code doc

* code documentation

* small comment cleanup

* cont. w tests, may have found bug in maths re: using not whole tokens: investigating

* finished code doc

* included requested changes to contract

* change to maths operations, shrunk test error to < .9

* updates:
* updated tests
* updated readme

* removed commented out code, changed variable name to be more informative

* removed unnecessary byte32 length check
2021-12-18 01:32:47 +00:00

34 lines
833 B
Solidity

pragma solidity ^0.6.6;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
/**
* This is a slightly modified version of the cosmos erc20 contract
* which I have done for unit testing.
*
* All that has been changed is the MAX_UINT variable to allow
* me to mint some tokens more easily in unit tests, and the
* addition of the public mint() function.
*/
contract CosmosERC20 is ERC20 {
/* canonical amount */
// uint256 MAX_UINT = 2**256 - 1;
/* unit testing amount */
uint256 HALF_MAX_UINT = 2**256 / 2;
constructor(
address _gravityAddress,
string memory _name,
string memory _symbol,
uint8 _decimals
) public ERC20(_name, _symbol) {
_setupDecimals(_decimals);
_mint(_gravityAddress, HALF_MAX_UINT);
}
function mintForUnitTesting(address _to, uint _amount) public {
_mint(_to, _amount);
}
}