Looking for a PureScript package for golden testing

shinzui · October 3, 2020, 7:53pm

Is there a PureScript package that supports golden tests similar to tasty-golden in Haskell or Jest in Node?

natefaubion · October 3, 2020, 9:32pm

I don’t know of any specifically. I wrote an ad-hoc golden/snapshot test runner for dodo-printer that you might be able to extract (I’m not really interested in maintaining it as a separate library).

github.com

natefaubion/purescript-dodo-printer/blob/master/test/Snapshot.purs

module Test.Snapshot where

import Prelude

import Control.MonadZero (guard)
import Control.Parallel (parTraverse)
import Data.Array (mapMaybe)
import Data.Array as Array
import Data.Either (Either(..))
import Data.Foldable (for_)
import Data.Maybe (Maybe(..))
import Data.Posix.Signal (Signal(..))
import Data.String (Pattern(..))
import Data.String as String
import Data.String.CodeUnits (stripSuffix)
import Effect (Effect)
import Effect.AVar as EffectAVar
import Effect.Aff (Aff, Error, catchError, effectCanceler, makeAff, throwError, try)
import Effect.Aff.AVar as AVar
import Effect.Class (liftEffect)

This file has been truncated. show original

Note that this is specifically executing purs files and capturing their stdout for the snapshot.

shinzui · October 3, 2020, 9:47pm

This looks great and might be enough for my current use case. Thank you.