Archives: FAQs

A: Service stubs are simple ES6 classes implementing the same methods (and return types) as a real service, but returning mock data or controlled behavior. They are used to avoid making real HTTP calls or external dependencies during unit tests — ensuring tests are fast, deterministic, and focused on form and component logic.

A: The post covers email validations, maximum characters for text fields, numeric field bounds, date bounds, and patterns (regex), as well as tests for enabling/disabling buttons depending on form validity.

A: Because forms are often where user input, validation logic, asynchronous behavior (e.g., debouncing or reactive forms), and user interaction come together — mistakes here can lead to bugs, security issues (e.g. XSS, SQL injection), or bad UX. Effective testing ensures validations, button states, and reactive behavior work as intended.

 A: Yes, it can work alongside Context API, Zustand, or React Query depending on project needs.

A: Actions describe events, reducers handle state updates, and the store holds the application state.

 A: Yes. Despite newer libraries, Redux remains popular for large applications needing strict state management.

A: Redux is more powerful for large apps with complex state, while Context is better for small or medium use cases.

A: Redux provides a single source of truth, making complex state predictable and easier to debug.

 A: It can be, but for simple projects, Angular services or signals might be enough.

A: The learning curve, boilerplate code, and over-engineering for small projects.