Function: setBorrowerDebtCeiling(address borrower, uint256 newDebtCeiling)

Allows the caller who has access to this function to update debtCeiling for borrower. This also initiates the update process of borrower's interest rate as a result of changing the current borrower's utilization ratio.

Inputs

• borrower

  • Constraints: If _borrowersSet does not contain borrower, the _getBorrowerConfig function reverts.

  • Impact: The address of existing borrower.

• newDebtCeiling

  • Constraints: No constraints.

  • Impact: The debt limit — if the debt balance of the borrower is more than debtCeiling, the _availableToBorrow returns zero. Also, it affects the borrower's utilization ratio.

Branches and code coverage

Intended branches

• New borrower's interest rate was calculated properly.

  Test coverage

• Borrower's debtCeiling was updated properly.

  Test coverage

Negative behavior

• Non-whitelisted caller

  Negative test

• The borrower has not been added before.

  Negative test