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{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeFamilies #-}
module SQLite.Test where
import Common.Test.Import hiding (from, on)
import Control.Monad (void)
import Control.Monad.Logger (runNoLoggingT, runStderrLoggingT)
import Database.Esqueleto.Legacy hiding (random_)
import Database.Esqueleto.SQLite (random_)
import Database.Persist.Sqlite (createSqlitePool)
import Database.Sqlite (SqliteException)
import Common.Test
testSqliteRandom :: SpecDb
testSqliteRandom = do
itDb "works with random_" $ do
_ <- select $ return (random_ :: SqlExpr (Value Int))
asserting noExceptions
testSqliteSum :: SpecDb
testSqliteSum = do
itDb "works with sum_" $ do
_ <- insert' p1
_ <- insert' p2
_ <- insert' p3
_ <- insert' p4
ret <- select $
from $ \p->
return $ joinV $ sum_ (p ^. PersonAge)
asserting $ ret `shouldBe` [ Value $ Just (36 + 17 + 17 :: Int) ]
testSqliteTwoAscFields :: SpecDb
testSqliteTwoAscFields = do
itDb "works with two ASC fields (one call)" $ do
p1e <- insert' p1
p2e <- insert' p2
p3e <- insert' p3
p4e <- insert' p4
ret <- select $
from $ \p -> do
orderBy [asc (p ^. PersonAge), asc (p ^. PersonName)]
return p
-- in SQLite and MySQL, its the reverse
asserting $ ret `shouldBe` [ p2e, p4e, p3e, p1e ]
testSqliteOneAscOneDesc :: SpecDb
testSqliteOneAscOneDesc = do
itDb "works with one ASC and one DESC field (two calls)" $ do
p1e <- insert' p1
p2e <- insert' p2
p3e <- insert' p3
p4e <- insert' p4
ret <- select $
from $ \p -> do
orderBy [desc (p ^. PersonAge)]
orderBy [asc (p ^. PersonName)]
return p
asserting $ ret `shouldBe` [ p1e, p4e, p3e, p2e ]
testSqliteCoalesce :: SpecDb
testSqliteCoalesce = do
itDb "throws an exception on SQLite with <2 arguments" $ do
eres <- try $ select $
from $ \p -> do
return (coalesce [p ^. PersonAge]) :: SqlQuery (SqlExpr (Value (Maybe Int)))
asserting $ case eres of
Left (_ :: SqliteException) ->
pure ()
Right _ ->
expectationFailure "Expected SqliteException with <2 args to coalesce"
testSqliteUpdate :: SpecDb
testSqliteUpdate = do
itDb "works on a simple example" $ do
p1k <- insert p1
p2k <- insert p2
p3k <- insert p3
let anon = "Anonymous" :: String
() <- update $ \p -> do
set p [ PersonName =. val anon
, PersonAge *=. just (val 2) ]
where_ (p ^. PersonName !=. val "Mike")
n <- updateCount $ \p -> do
set p [ PersonAge +=. just (val 1) ]
where_ (p ^. PersonName !=. val "Mike")
ret <- select $
from $ \p -> do
orderBy [ asc (p ^. PersonName), asc (p ^. PersonAge) ]
return p
-- SQLite: nulls appear first, update returns matched rows.
asserting $ do
n `shouldBe` 2
ret `shouldMatchList`
[ Entity p2k (Person anon Nothing (Just 37) 2)
, Entity p1k (Person anon (Just 73) Nothing 1)
, Entity p3k p3
]
testSqliteTextFunctions :: SpecDb
testSqliteTextFunctions = do
describe "text functions" $ do
itDb "like, (%) and (++.) work on a simple example" $ do
let query :: String -> SqlPersistT IO [Entity Person]
query t =
select $
from $ \p -> do
where_ (like
(p ^. PersonName)
((%) ++. val t ++. (%)))
orderBy [asc (p ^. PersonName)]
return p
[p1e, p2e, p3e, p4e] <- mapM insert' [p1, p2, p3, p4]
r0 <- query "h"
r1 <- query "i"
r2 <- query "iv"
asserting $ do
r0 `shouldBe` [p1e, p2e]
r1 `shouldBe` [p4e, p3e]
r2 `shouldBe` [p4e]
spec :: HasCallStack => Spec
spec = beforeAll mkConnectionPool $ do
tests
describe "SQLite specific tests" $ do
testAscRandom random_
testSqliteRandom
testSqliteSum
testSqliteTwoAscFields
testSqliteOneAscOneDesc
testSqliteCoalesce
testSqliteUpdate
testSqliteTextFunctions
mkConnectionPool :: IO ConnectionPool
mkConnectionPool = do
conn <-
if verbose
then runStderrLoggingT $
createSqlitePool ".esqueleto-test.sqlite" 4
else runNoLoggingT $
createSqlitePool ".esqueleto-test.sqlite" 4
flip runSqlPool conn $ do
migrateIt
pure conn
verbose :: Bool
verbose = False
migrateIt :: MonadUnliftIO m => SqlPersistT m ()
migrateIt = do
void $ runMigrationSilent migrateAll
cleanDB
|
