Initial test suite

[adnelson]

• Query builder -- any non-trivial transformations
• Query rendering
  • Postgres
  • Sqlite3
• Create/Retrieve
  • Postgres
  • SQLite3

[baransu]

It seams snapshot testing should give basic test coverage with little effort 🙂

[adnelson]

Hmm, what did you have in mind? I'm not familiar with that approach, although I have some theories 😅

[baransu]

It would be basicly constructing examples of queries, rendering them and dumping into snapshot. You can verify them by hand just by looking or using some sql validator. You have snapshots in repo all the time and after every change you verify agains snapshots if you have some unwanted regressions.

In Jest documentation it’s mentioned for UI but our usecase it also makes sense:
https://jestjs.io/docs/en/snapshot-testing