Harness.hs

{-# LANGUAGE OverloadedLabels #-}
-- @generated by keiro-dsl 0.9.0.0 (language keiro-dsl 4) from aggregate Subscription; do not edit.
module Generated.Billing.Subscription.Harness (harnessAssertions) where

import Generated.Billing.Subscription.Domain
import Generated.Billing.Subscription.Codec (encodeSubscriptionEvent, parseSubscriptionEvent, subscriptionCodec)
import Generated.Billing.Subscription.Transducer (subscriptionTransducer)
import Keiki.Core (applyEventsEither, defaultValidationOptions, step, validateTransducer, (!))
import Keiro.Codec (eventType)
import Generated.Billing.Nominals (CustomerId, parseCustomerId, Plan (..), SubscriptionId, parseSubscriptionId)

-- | (label, passed). A driver runs these and exits non-zero on any False,
-- naming the failing assertion. Filling a hole wrongly turns a specific
-- entry False; the scaffold cannot.
harnessAssertions :: [(String, Bool)]
harnessAssertions =
  [ ("validateTransducer is empty", null (validateTransducer defaultValidationOptions subscriptionTransducer))
  , ("clock-free: spec samples no wall clock", True)
  , ("golden round-trip: SubscriptionActivated", roundTrips sampleEventSubscriptionActivated)
  , ("golden round-trip: SubscriptionCancelled", roundTrips sampleEventSubscriptionCancelled)
  , ("accepts ActivateSubscription from SubscriptionInactive", acceptActivateSubscription)
  ]
  ++ forwardReplayActivateSubscription

roundTrips :: SubscriptionEvent -> Bool
roundTrips e = parseSubscriptionEvent (eventType subscriptionCodec e) (encodeSubscriptionEvent e) == Right e

sampleEventSubscriptionActivated :: SubscriptionEvent
sampleEventSubscriptionActivated = (SubscriptionActivated (SubscriptionActivatedData (case parseSubscriptionId "sub_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") (case parseCustomerId "cust_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") Paid))

sampleEventSubscriptionCancelled :: SubscriptionEvent
sampleEventSubscriptionCancelled = (SubscriptionCancelled (SubscriptionCancelledData (case parseSubscriptionId "sub_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") (case parseCustomerId "cust_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse")))

acceptActivateSubscription :: Bool
acceptActivateSubscription =
  case step subscriptionTransducer (SubscriptionInactive, initialSubscriptionRegs) ((ActivateSubscription (ActivateSubscriptionData (case parseSubscriptionId "sub_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") (case parseCustomerId "cust_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") Paid))) of
    Just (v, _, _) -> v == SubscriptionActive
    Nothing -> False

-- forward/replay equality (plan 147): cross the persisted codec boundary,
-- replay the emitted chain, and compare the final vertex and every register.
forwardReplayActivateSubscription :: [(String, Bool)]
forwardReplayActivateSubscription =
  case step subscriptionTransducer (SubscriptionInactive, initialSubscriptionRegs) ((ActivateSubscription (ActivateSubscriptionData (case parseSubscriptionId "sub_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") (case parseCustomerId "cust_01h455vb4pex5vsknk084sn02q" of Right parsed -> parsed; Left _ -> error "generated valid ID sample failed to parse") Paid))) of
    Nothing -> [(prefix <> "forward step accepted", False)]
    Just (forwardVertex, forwardRegs, emitted) ->
      case mapM (\event -> parseSubscriptionEvent (eventType subscriptionCodec event) (encodeSubscriptionEvent event)) emitted of
        Left _ -> [(prefix <> "emitted chain decodes", False)]
        Right decodedEvents ->
          case applyEventsEither subscriptionTransducer (SubscriptionInactive, initialSubscriptionRegs) decodedEvents of
            Left _ -> [(prefix <> "replay succeeds", False)]
            Right (replayVertex, replayRegs) ->
              [ (prefix <> "final vertex", replayVertex == forwardVertex)
              , (prefix <> "register plan", (replayRegs ! #plan) == (forwardRegs ! #plan))
              ]
  where
    prefix = "forward/replay equality: ActivateSubscription from SubscriptionInactive -- "