README.md

curve-contract/contracts/testing

Contracts used exclusively for testing. These are not considered part of Curve and so do not fall under the Curve license.

Contracts

• cERC20: Mintable ERC20 with mocked compound cToken lending functionality
• ERC20Mock: Mintable ERC20 that returns True on successful calls
• ERC20MockNoReturn: Mintable ERC20 that returns None on successful calls
• renERC20: Mintable ERC20 with mocked renBTC functionality
• yERC20: Mintable ERC20 with mocked yearn yToken lending functionality

Development

Minting test tokens

All test tokens implement the following method to allow minting to arbitrary addresses during testing:

def _mint_for_testing(_target: address, _value: uint256) -> bool:

• _target: Address to mint tokens to
• _value: Number of tokens to mint

When called on a wrapped token, an amount of the underlying token is also minted at the wrapped token address in order to ensure unwrapping is possible.