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|
{-# LANGUAGE DataKinds, ScopedTypeVariables #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE ExistentialQuantification #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE UndecidableInstances #-}
--
-- DeriveAnyClass is not actually used by persistent-template
-- But a long standing bug was that if it was enabled, it was used to derive instead of GeneralizedNewtypeDeriving
-- This was fixed by using DerivingStrategies to specify newtype deriving should be used.
-- This pragma is left here as a "test" that deriving works when DeriveAnyClass is enabled.
-- See https://github.com/yesodweb/persistent/issues/578
{-# LANGUAGE DeriveAnyClass #-}
module Database.Persist.TH.ToFromPersistValuesSpec where
import TemplateTestImports
import Database.Persist.Sql.Util
import Database.Persist.Class.PersistEntity
import Data.List.NonEmpty (NonEmpty(..))
import qualified Data.List.NonEmpty as NEL
instance PersistFieldSql a => PersistFieldSql (NonEmpty a) where
sqlType _ = SqlString
instance PersistField a => PersistField (NonEmpty a) where
toPersistValue = toPersistValue . NEL.toList
fromPersistValue pv = do
xs <- fromPersistValue pv
case xs of
[] -> Left "PersistField: NonEmpty found unexpected Empty List"
(l:ls) -> Right (l:|ls)
mkPersist sqlSettings [persistLowerCase|
NormalModel
name Text
age Int
deriving Eq Show
PrimaryModel
name Text
age Int
Primary name age
deriving Eq Show
IsMigrationOnly
name Text
age Int
blargh Int MigrationOnly
deriving Eq Show
HasListField
names [Text]
deriving Eq Show
HasNonEmptyListField
names (NonEmpty Text)
deriving Eq Show
HasNonEmptyListKeyField
names (NonEmpty (Key NormalModel))
deriving Eq Show
|]
spec :: Spec
spec = describe "{to,from}PersistValues" $ do
let
toPersistValues
:: PersistEntity rec => rec -> [PersistValue]
toPersistValues =
map toPersistValue . toPersistFields
subject
:: (PersistEntity rec, Show rec, Eq rec)
=> rec
-> [PersistValue]
-> Spec
subject model fields = do
it "toPersistValues" $ do
toPersistValues model
`shouldBe`
fields
it "fromPersistValues" $ do
fromPersistValues fields
`shouldBe`
Right model
describe "NormalModel" $ do
subject
(NormalModel "hello" 30)
[ PersistText "hello"
, PersistInt64 30
]
describe "PrimaryModel" $ do
subject
(PrimaryModel "hello" 30)
[ PersistText "hello"
, PersistInt64 30
]
describe "IsMigrationOnly" $ do
subject
(IsMigrationOnly "hello" 30)
[ PersistText "hello"
, PersistInt64 30
]
describe "mkInsertValues" $ do
describe "NormalModel" $ do
it "has all values" $ do
mkInsertValues (NormalModel "hello" 30)
`shouldBe`
[ PersistText "hello"
, PersistInt64 30
]
describe "PrimaryModel" $ do
it "has all values" $ do
mkInsertValues (PrimaryModel "hello" 30)
`shouldBe`
[ PersistText "hello"
, PersistInt64 30
]
describe "IsMigrationOnly" $ do
it "has all values" $ do
mkInsertValues (IsMigrationOnly "hello" 30)
`shouldBe`
[ PersistText "hello"
, PersistInt64 30
]
describe "parseEntityValues" $ do
let
subject
:: forall rec. (PersistEntity rec, Show rec, Eq rec)
=> [PersistValue]
-> Entity rec
-> Spec
subject pvs rec =
it "parses" $ do
parseEntityValues (entityDef (Proxy @rec)) pvs
`shouldBe`
Right rec
describe "NormalModel" $ do
subject
[ PersistInt64 20
, PersistText "hello"
, PersistInt64 30
]
Entity
{ entityKey =
NormalModelKey 20
, entityVal =
NormalModel "hello" 30
}
describe "PrimaryModel" $ do
subject
[ PersistText "hey"
, PersistInt64 30
]
Entity
{ entityKey =
PrimaryModelKey "hey" 30
, entityVal =
PrimaryModel "hey" 30
}
describe "IsMigrationOnly" $ do
subject
[ PersistInt64 20
, PersistText "hello"
, PersistInt64 30
]
Entity
{ entityKey =
IsMigrationOnlyKey 20
, entityVal =
IsMigrationOnly "hello" 30
}
describe "entityValues" $ do
let
subject
:: forall rec. (PersistEntity rec, Show rec, Eq rec)
=> [PersistValue]
-> Entity rec
-> Spec
subject pvals entity = do
it "renders as you would expect"$ do
entityValues entity
`shouldBe`
pvals
it "round trips with parseEntityValues" $ do
parseEntityValues
(entityDef $ Proxy @rec)
(entityValues entity)
`shouldBe`
Right entity
describe "NormalModel" $ do
subject
[ PersistInt64 10
, PersistText "hello"
, PersistInt64 20
]
Entity
{ entityKey =
NormalModelKey 10
, entityVal =
NormalModel "hello" 20
}
describe "PrimaryModel" $ do
subject
[ PersistText "hello"
, PersistInt64 20
]
Entity
{ entityKey =
PrimaryModelKey "hello" 20
, entityVal =
PrimaryModel "hello" 20
}
describe "IsMigrationOnly" $ do
subject
[ PersistInt64 20
, PersistText "hello"
, PersistInt64 20
]
Entity
{ entityKey =
IsMigrationOnlyKey 20
, entityVal =
IsMigrationOnly "hello" 20
}
describe "HasListField" $ do
subject
[ PersistInt64 10
, PersistList [PersistText "hello"]
]
Entity
{ entityKey =
HasListFieldKey 10
, entityVal =
HasListField ["hello"]
}
describe "HasNonEmptyListField" $ do
subject
[ PersistInt64 10
, PersistList [PersistText "hello"]
]
Entity
{ entityKey =
HasNonEmptyListFieldKey 10
, entityVal =
HasNonEmptyListField (pure "hello")
}
describe "HasNonEmptyListKeyField" $ do
subject
[ PersistInt64 5
, PersistList [PersistInt64 4]
]
Entity
{ entityKey =
HasNonEmptyListKeyFieldKey 5
, entityVal =
HasNonEmptyListKeyField (pure (NormalModelKey 4))
}
|
