Worked on enhancing the reliability and accuracy of UI form tests within the storybookjs/storybook repository by improving the core testing approach. Focused on front end development using JavaScript and TypeScript, the work involved replacing fireEvent with userEvent in unit tests to better simulate real user interactions. This change addressed issues with flaky tests and improved the realism of form validation testing, leading to more stable and actionable CI feedback. Documentation was also updated to reflect the new testing standard, ensuring consistency for future contributors. The work demonstrated a methodical approach to testing improvements across Angular, React, Svelte, and Vue.