Expand automated testing pyramid (unit + integration + broader e2e coverage)

[clFaster]

Goal

Expand automated testing pyramid (unit + integration + broader e2e coverage)

Type

Technical + Quality

Effort

M

Impact

High

Evidence

Only system tests exist currently (see e2e/specs/system.e2e.mjs); no frontend unit or Rust unit tests present

First Implementation Step

Add unit tests for boardListDnd.ts, import parsing, and Rust command logic

[m13v]

starting with unit tests for boardListDnd.ts is smart since drag-and-drop logic is notoriously hard to test at the E2E level. for the Rust unit tests, keep them colocated with the source (mod tests in each file) rather than in a separate tests directory, it makes the feedback loop much faster during development. for the E2E layer, one thing we learned is to not try to cover the entire pyramid at once. write the unit tests first, then look at what failure modes they miss, and only add integration or E2E tests for the gaps. otherwise you end up with redundant coverage that slows down CI without catching new bugs.

[m13v]

for the e2e layer, we open sourced a test generation tool that auto-discovers test scenarios by crawling your running app. the discovery engine: https://github.com/assrt-ai/assrt-freestyle/blob/main/src/core/freestyle.ts and the browser session management for test isolation: https://github.com/assrt-ai/assrt-freestyle/blob/main/src/core/browser.ts