Testing shadcn/ui Apps Built with AI

shadcn/ui components are designed to be composed together following specific patterns. AI tools often nest components incorrectly, pass wrong prop types, or combine components in ways that break their internal state management. A Dialog inside a Popover, a DropdownMenu with incorrect trigger composition, or a Form with mismatched field names are typical examples.

The component registry system means each component is owned by the project, and AI tools frequently modify the base components in ways that break derived components. Changing the underlying Radix primitive props, removing forwardRef implementations, or altering the className merge logic causes cascading failures.

Testers interact with every component in your application, catching composition issues by testing the full interaction lifecycle. They open and close dialogs, navigate dropdown menus, fill out forms, and verify that every component behaves predictably.

shadcn/ui forms built with React Hook Form and Zod validation are a common output of AI tools, but the integration is frequently imperfect. Validation schemas may not match form field names, error messages may not display in the correct location, and form state may not reset properly after submission.

AI tools also struggle with complex form patterns like multi-step forms, dynamic field arrays, and dependent field validation. The shadcn/ui form components handle these patterns well when used correctly, but AI-generated code often bypasses the built-in form control mechanisms.

Testers submit every form in your application with valid data, invalid data, edge cases, and empty submissions. They verify that validation messages appear correctly, that form state persists when navigating between steps, and that successful submissions produce the expected result.

Submit your deployed application and testers will evaluate every shadcn/ui component in context. They test the complete Radix UI primitive behavior including keyboard navigation, focus management, and screen reader announcements. They verify that the theme system works consistently across all components.

Testers also check for common issues like toast notifications that stack incorrectly, command palettes that do not filter results properly, and data tables with broken sorting or pagination. Every component interaction is tested against expected behavior.