Testing That Protects Momentum

2025-08-15

• #testing
• #integration
• #discipline

I’m optimizing for momentum, not perfection. Good tests protect momentum by catching regressions early while staying fast and focused.

Principles I’m following here:

• Start with a failing test that expresses intent.
• Prefer integration tests for user-visible behavior; unit tests for sharply-defined helpers.
• Build hermetically where possible (temp workspaces, UTC normalization) to avoid flakiness.

Tooling choices:

• Vitest: fast, familiar, good DX.
• Eleventy: predictable builds, simple inputs/outputs, easy to test via CLI.

The result is confidence to ship small changes daily and keep the writing streak alive.