Function: latestPrice(OrigamiMath.Rounding roundingMode)
Gets the latest price (rounded in ideal correction and scaled to 1e18).
Inputs
roundingMode
Control: Full.
Constraints: None.
Impact: The direction to round.
Branches and code coverage
Intended branches
Direction to round is correctly followed.
Exchange rate is scaled to 1e18.
Negative behavior
Verifies floor and ceiling requirements.