Function: claimFees()

This function is used to claim the accumulated protocol fees.

Branches and code coverage

Intended branches

• Update the last fee claim time.

  Test coverage

• Transfer the fee amount to the fee beneficiary.

  Test coverage

Negative behavior

• Revert if the caller is not the fee beneficiary.

  Negative test

• Revert if there are no fees to claim.

  Negative test