Worked on modernizing the test suite for the palantir/palantir-java-format repository by migrating all test assertions from Google Truth to AssertJ. This transition standardized assertion styles across the codebase, improving both readability and maintainability of Java tests. The migration leveraged AssertJ’s fluent API, resulting in clearer failure messages and reducing the likelihood of false positives during continuous integration runs. By aligning the project with current Java testing practices, the work enhanced onboarding for new contributors and simplified future test extensions. The effort focused on dependency management and unit testing, ultimately contributing to a more robust and reliable testing infrastructure for the project.