A mock file is a copy of a workflow file that is used to simulate the behavior of the original workflow without affecting it1. When you create a mock file, the original workflow file is automatically added to the project dependencies, and the mock file is added to the test folder2. If you update the original workflow file, the changes are not reflected in the mock file, unless you manually update the mock file as well3. Therefore, if you add a Log Message activity and a Verify Expression activity to “MySequence” workflow file and save the project, the “MySequencemock” file will remain unchanged.