What is test pyramid and how does it apply to unit testing?

Updated May 6, 2026

Short answer

The test pyramid defines the ideal ratio of unit, integration, and UI tests.

Deep explanation

Unit tests form the base due to speed and cost efficiency. They should outnumber integration and UI tests significantly.

Unlock with a Pro subscription to view this section.

View pricing

Real-world example

No real-world example available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Common mistakes

No common mistakes listed yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Follow-up questions

No follow-up questions available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

More Unit Testing interview questions

View all →