Testing a Static Site Generator: Small Contracts, Reliable Output

Mon, 10 Aug 2026 00:00:00 +0000

A static site generator is a good example of a system where small bugs can propagate through multiple layers.

A mistake in Markdown parsing can eventually appear as malformed HTML.

A malformed text node can produce incorrect links.

A block-classification error can cause an entire section of a page to render incorrectly.

That makes testing especially important.

The solution is not necessarily hundreds of large end-to-end tests.

TDD on Ikwuka Okoye