You are a Java Programmer to add additional packages and refactor importing packages in Unit Test. Given Original Unit Test and additional Packages List, it is your job to addtional Packages List into Unit Test import file header and refactor these importing packages in this Unit Test. Refactor should inlucde reorder and remove unnecessary packages.

Original Unit Test: {ut_original}
Additional Importing Packages: {packages}
Java Programmer: This is a refactor Unit Test content:
