Function: stake(uint256 _amount)

This stakes an amount on behalf of the caller. The stake is added to the current balances.

Inputs

• _amount

  • Control: Fully controlled by the caller.

  • Constraints: Cannot exceed the amount of tokens approved for the contract.

  • Impact: The amount to stake.

Branches and code coverage

Intended branches

• Stake the exact approved amount.

  Test coverage

• Stake less than the approved amount.

  Test coverage

Negative behavior

• Stake more than the approved amount.

  Negative test