Balancer V3 ERC4626 Fork Tests

This repository contains tests to ensure that an ERC4626 token is compatible with Balancer V3 buffers. For compatibility, an ERC4626 token must meet the following requirements:

Full ERC4626 Compliance

The token must implement all functions defined by the ERC-4626: Tokenized Vaults standard. The tests validate the correct implementation of the following functions:

• asset
• convertToAssets
• convertToShares
• previewDeposit
• previewMint
• previewWithdraw
• previewRedeem
• deposit
• mint
• withdraw
• redeem

No Deposit or Withdraw Fees

The ERC4626 wrapper should not impose deposit or withdrawal fees. For example, a deposit of amount tokens should allow the user to withdraw at least amount - 1 tokens.

Accurate Conversions

The convert and preview functions must produce results that are close, with a maximum allowable difference of 1 wei.

Preview and Operation Consistency

The results of preview functions must match the outcomes of their corresponding operations precisely.

Exact-Input for Deposit and Redeem

The deposit and redeem functions must behave as EXACT_IN functions, consuming the exact amount of tokens specified in their input arguments.

Exact-Output for Mint and Withdraw

The mint and withdraw functions must behave as EXACT_OUT functions, returning the exact number of tokens specified in their output values.