Week 14 of #100DaysOfCode: Completing JUnit 5 and Mastering Java Testing

In the 14th week of the #100DaysOfCode challenge, the author focused on deepening their expertise in software testing with JUnit 5. The developer successfully completed the 'Mastering Software Testing with JUnit 5' course, achieving a 70% score. Key topics mastered include the JUnit 5 lifecycle, advanced assertions, dynamic tests, parameterized testing, and the framework's extension model. Furthermore, the author explored integrating JUnit 5 with industry-standard tools such as Mockito, Spring, Selenium, and Cucumber to enhance backend development workflows. Beyond testing, the developer began building a new personal portfolio using Next.js, Tailwind CSS, and Motion, while also initiating a study of Docker for containerization. This week underscored the importance of balancing new technology acquisition with consistent practice and the revision of core development concepts, marking a significant milestone in the author's journey toward becoming a more proficient Java backend developer.