Developer advises fixing audit order before refactoring access control code

A software development article advises developers to freeze and test the existing output behavior of a decision-making function before attempting to refactor it. The core function determines access grants based on user roles and actions, returning a decision and logging audit events. The author warns that extracting or moving the underlying decision table prematurely can break implicit contracts that calling code relies on. Therefore, comprehensive tests must first be written to pin down the exact return values, audit log order, and any state changes. Only after these tests are passing should structural changes to the code be considered safe.