The Python tools for Polylith Architecture have introduced a new command called poly test, which includes a sub-command poly test diff.Polylith is an architecture that supports having multiple Microservices in a Monorepo and allows code sharing between services.The poly test command helps identify bricks and projects affected by changes in tests, similar to the existing poly diff command.This new command provides a structured way to identify affected bricks and projects when automated tests are updated.