Why could test cases need to be refactored in an Agile project?

In Agile projects, test cases may need to be refactored to make them simpler and less costly to modify. This is crucial because Agile methodologies prioritize adaptability and frequent changes to the codebase and documentation. Refactoring test cases in this context ensures that they remain aligned with the continuously evolving project requirements, are easier for teams to manage, and can be quickly adjusted to accommodate new or changed functionality without significant rework costs .