Function: approve(address _poolAddress, uint256 _amount)

Should allow the approval of the ERC-20 token to a pool.

Inputs

• _poolAddress

  • Control: Fully controlled by the admin.

  • Constraints: None.

  • Impact: The address of the pool to approve.

• _amount

  • Control: Fully controlled by the admin.

  • Constraints: None.

  • Impact: The amount to approve.

Branches and code coverage (including function calls)

Intended branches

• Should approve the _amount on the _poolAddress.

  Test coverage

Negative behavior

• Should not allow anyone other than the admin to call this function. Ensured through the onlyAdmin modifier.

  Negative test

Function call analysis

• IStakePool(_poolAddress).approveForStakeManager(erc20TokenAddress, _amount)

  • What is controllable? poolAddress and _amount.

  • If return value controllable, how is it used and how can it go wrong? N/A.

  • What happens if it reverts, reenters, or does other unusual control flow? Approval fails.