Function: registerReferralCode(uint32 _referralCode, uint64 _referralFee, address _beneficiary)

This unpermissioned function allows to register a new referral code. Referral codes can have a referral fee, capped at max 2%.

Inputs

• _referralCode

  • Control: Arbitrary.

  • Constraints: Must not be an existing referral code.

  • Impact: Integer identifying the referrer.

• _referralFee

  • Control: Arbitrary.

  • Constraints: Must represent a fee of at most 2%; must be zero if _referralCode <= REFERRAL_WITH_FEE_THRESHOLD.

  • Impact: Determines the referral fee.

• _beneficiary

  • Control: Arbitrary.

  • Constraints: Must not be the null address.

  • Impact: Address of the referrer — receives the fees generated by the referral code.

Branches and code coverage (including function calls)

Intended branches

• Registers the new referral code.

  Test coverage

Negative behavior

• Reverts if the fee is > 2%.

  Negative test

• Reverts if the fee is > 0% and _referralCode <= REFERRAL_WITH_FEE_THRESHOLD.

  Negative test

• Reverts if the fee is 0% and _referralCode > REFERRAL_WITH_FEE_THRESHOLD.

  Negative test

• Reverts if the referral code is already registered.

  Negative test

• Reverts if the beneficiary address is the null address.

  Negative test