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ERC4626

ERC4626 is a solidity contract that allows users to stake a token (TokenA) and earn rewards in another token (RewardToken) over time. They receive X amount of VaultTokens based on their deposit, which they can burn on withdrawal.

Usage

To use the contract, users must first approve the contract to spend their token A. They can then call the stake function to stake their token A and start earning rewards.

Users can check their earned rewards by calling the earned function. They can claim their earned rewards by calling the getReward function.

Users can also withdraw their staked token A by calling the withdraw function.

Tests

The contract includes a test suite that checks its functionality. To run the tests:

npm install
npx hardhat test

The test suite includes a simulation of a scenario and tests for depositing rewards, staking and withdrawing token A, claiming earned rewards and handling edge cases.

Passing tests image