Testing Vue components ensures your application works correctly and prevents regressions when refactoring or adding features. With 12 years of experience building Vue applications since 2014 and as the creator of CoreUI, I’ve established comprehensive testing strategies for production applications. The most efficient approach is using Vitest with Vue Test Utils, which provides fast test execution, Vue 3 Composition API support, and seamless integration with Vite. This combination offers instant feedback during development and reliable test coverage for components, composables, and business logic.