Harness.hs

-- @generated by keiro-dsl 0.17.0.0 (language keiro-dsl 6) from aggregate IncidentSaga; do not edit.
module Generated.ProcessTimers.IncidentSaga.Harness (harnessAssertions) where

import Generated.ProcessTimers.IncidentSaga.Domain
import Generated.ProcessTimers.IncidentSaga.Codec (encodeIncidentSagaEvent, parseIncidentSagaEvent, incidentSagaCodec)
import Generated.ProcessTimers.IncidentSaga.Transducer (incidentSagaTransducer)
import Keiki.Core (applyEventsEither, defaultValidationOptions, step, validateTransducer)
import Keiro.Codec (eventType)
import Generated.ProcessTimers.Nominals (IncidentId, parseIncidentId)

-- | (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 incidentSagaTransducer))
  -- clock-free: spec samples no wall clock (verified at scaffold time)
  , ("golden round-trip: IncidentRecorded", roundTrips sampleEventIncidentRecorded)
  , ("accepts RecordIncident from IncidentSagaOpen", acceptRecordIncident)
  ]
  ++ forwardReplayRecordIncident

roundTrips :: IncidentSagaEvent -> Bool
roundTrips e = parseIncidentSagaEvent (eventType incidentSagaCodec e) (encodeIncidentSagaEvent e) == Right e

sampleIncidentId :: IncidentId
sampleIncidentId =
  case parseIncidentId "inc_01h455vb4pex5vsknk084sn02q" of
    Right parsed -> parsed
    Left problem -> error (show problem)

sampleEventIncidentRecorded :: IncidentSagaEvent
sampleEventIncidentRecorded = IncidentRecorded (IncidentRecordedData sampleIncidentId)

acceptRecordIncident :: Bool
acceptRecordIncident =
  case step incidentSagaTransducer (IncidentSagaOpen, initialIncidentSagaRegs) (RecordIncident (RecordIncidentData sampleIncidentId)) of
    Just (v, _, _) -> v == IncidentSagaOpen
    Nothing -> False

-- forward/replay equality (plan 147): cross the persisted codec boundary,
-- replay the emitted chain, and compare the final vertex and every register.
forwardReplayRecordIncident :: [(String, Bool)]
forwardReplayRecordIncident =
  case step incidentSagaTransducer (IncidentSagaOpen, initialIncidentSagaRegs) (RecordIncident (RecordIncidentData sampleIncidentId)) of
    Nothing -> [(prefix <> "forward step accepted", False)]
    Just (forwardVertex, _forwardRegs, emitted) ->
      case mapM (\event -> parseIncidentSagaEvent (eventType incidentSagaCodec event) (encodeIncidentSagaEvent event)) emitted of
        Left _ -> [(prefix <> "emitted chain decodes", False)]
        Right decodedEvents ->
          case applyEventsEither incidentSagaTransducer (IncidentSagaOpen, initialIncidentSagaRegs) decodedEvents of
            Left _ -> [(prefix <> "replay succeeds", False)]
            Right (replayVertex, _replayRegs) ->
              [ (prefix <> "final vertex", replayVertex == forwardVertex)
              ]
  where
    prefix = "forward/replay equality: RecordIncident from IncidentSagaOpen -- "