generated from tpl/purs
353 lines
12 KiB
Haskell
353 lines
12 KiB
Haskell
module Test.Main
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( main
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) where
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import Prelude
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import Control.Monad.Error.Class (throwError, try)
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import Control.Monad.Except.Trans (runExceptT)
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import Control.Monad.Trans.Class (lift)
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import Data.Array (zip)
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import Data.Date (Date, canonicalDate)
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import Data.DateTime.Instant (Instant, unInstant)
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import Data.Decimal as D
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import Data.Either (Either(..))
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import Data.Enum (toEnum)
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import Data.Foldable (all, length)
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import Data.JSDate (JSDate, jsdate, toInstant)
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import Data.JSDate as JSDate
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import Data.Maybe (Maybe(..), fromJust)
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import Data.Newtype (unwrap)
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import Data.Tuple (Tuple(..))
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import Data.Tuple.Nested ((/\))
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import Database.PostgreSQL.PG (Connection, PGError(..), Pool, PoolConfiguration, Query(Query), Row0(Row0), Row1(Row1), Row2(Row2), Row3(Row3), Row9(Row9), command, execute, newPool, onIntegrityError, query, scalar)
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import Effect (Effect)
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import Effect.Aff (Aff, error, launchAff)
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import Effect.Class (liftEffect)
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import Effect.Exception (message)
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import Foreign.Object (Object, fromFoldable)
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import Global.Unsafe (unsafeStringify)
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import Math ((%))
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import Partial.Unsafe (unsafePartial)
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import Test.Assert (assert)
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import Test.README (run, PG, withConnection, withTransaction) as README
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import Test.Unit (TestSuite, suite)
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import Test.Unit as Test.Unit
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import Test.Unit.Assert (equal)
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import Test.Unit.Main (runTest)
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type PG a = README.PG a
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withConnection :: forall a. Pool -> (Connection -> PG a) -> PG a
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withConnection = README.withConnection
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withTransaction :: forall a. Connection -> PG a -> PG a
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withTransaction = README.withTransaction
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pgEqual :: forall a. Eq a => Show a => a -> a -> PG Unit
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pgEqual a b = lift $ equal a b
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withRollback
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∷ Connection
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→ PG Unit
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→ PG Unit
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withRollback conn action =
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begin *> action *> rollback
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where
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begin = execute conn (Query "BEGIN TRANSACTION") Row0
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rollback = execute conn (Query "ROLLBACK TRANSACTION") Row0
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test
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∷ Connection
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→ String
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→ PG Unit
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→ TestSuite
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test conn name action =
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Test.Unit.test name $ checkPGErrors $ withRollback conn action
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transactionTest
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∷ String
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→ PG Unit
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→ TestSuite
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transactionTest name action =
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Test.Unit.test name $ checkPGErrors $ action
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checkPGErrors :: PG Unit -> Aff Unit
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checkPGErrors action = do
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runExceptT action >>= case _ of
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Left pgError -> Test.Unit.failure ("Unexpected PostgreSQL error occured:" <> unsafeStringify pgError)
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Right _ -> pure unit
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now ∷ Effect Instant
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now = unsafePartial $ (fromJust <<< toInstant) <$> JSDate.now
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date ∷ Int → Int → Int → Date
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date y m d = unsafePartial $ fromJust $ canonicalDate <$> toEnum y <*> toEnum m <*> toEnum d
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jsdate_ ∷ Number → Number → Number → Number → Number → Number → Number → JSDate
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jsdate_ year month day hour minute second millisecond =
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jsdate { year, month, day, hour, minute, second, millisecond }
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main ∷ Effect Unit
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main = do
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void $ launchAff do
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-- Running guide from README
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void $ runExceptT $ README.run
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-- Actual test suite
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pool <- liftEffect $ newPool config
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checkPGErrors $ withConnection pool \conn -> do
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execute conn (Query """
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CREATE TEMPORARY TABLE foods (
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name text NOT NULL,
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delicious boolean NOT NULL,
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price NUMERIC(4,2) NOT NULL,
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added TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (name)
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);
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CREATE TEMPORARY TABLE dates (
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date date NOT NULL
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);
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CREATE TEMPORARY TABLE timestamps (
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timestamp timestamptz NOT NULL
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);
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CREATE TEMPORARY TABLE jsons (
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json json NOT NULL,
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jsonb jsonb NOT NULL
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);
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""") Row0
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liftEffect $ runTest $ do
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suite "PostgreSQL client" $ do
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let
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testCount n = do
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count <- scalar conn (Query """
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SELECT count(*) = $1
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FROM foods
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""") (Row1 n)
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liftEffect <<< assert $ count == Just true
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transactionTest "transaction commit" do
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withTransaction conn do
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execute conn (Query """
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INSERT INTO foods (name, delicious, price)
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VALUES ($1, $2, $3)
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""") (Row3 "pork" true (D.fromString "8.30"))
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testCount 1
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testCount 1
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execute conn (Query """
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DELETE FROM foods
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""") Row0
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transactionTest "transaction rollback on PostgreSQL error" $ do
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_ <- try $ withTransaction conn do
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execute conn (Query """
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INSERT INTO foods (name, delicious, price)
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VALUES ($1, $2, $3)
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""") (Row3 "pork" true (D.fromString "8.30"))
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testCount 1
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-- invalid SQL query --> PGError is thrown
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execute conn (Query "foo bar") Row0
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-- transaction should've been rolled back
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testCount 0
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transactionTest "transaction rollback on JavaScript exception" $ do
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result <- lift $ try $ runExceptT $ withTransaction conn do
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execute conn (Query """
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INSERT INTO foods (name, delicious, price)
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VALUES ($1, $2, $3)
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""") (Row3 "pork" true (D.fromString "8.30"))
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testCount 1
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-- throw a JavaScript error
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lift $ throwError $ error "fail"
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-- make sure the JavaScript error was thrown
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liftEffect $ case result of
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Left jsErr -> assert (message jsErr == "fail")
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Right _ -> assert false
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-- transaction should've been rolled back
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testCount 0
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test conn "usage of rows represented by nested tuples" $ do
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execute conn (Query """
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INSERT INTO foods (name, delicious, price)
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VALUES ($1, $2, $3), ($4, $5, $6), ($7, $8, $9)
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""")
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( ("pork" /\ true /\ (D.fromString "8.30"))
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/\ ("sauerkraut" /\ false /\ (D.fromString "3.30"))
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/\ ("rookworst" /\ true /\ (D.fromString "5.60")))
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names <- query conn (Query """
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SELECT name, delicious
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FROM foods
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WHERE delicious
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ORDER BY name ASC
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""") Row0
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liftEffect <<< assert $ names == ["pork" /\ true, "rookworst" /\ true]
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test conn "nested tuples as rows - just one element" $ do
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let row = date 2010 2 31 /\ unit
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execute conn (Query """
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INSERT INTO dates (date)
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VALUES ($1)
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""") row
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rows <- query conn (Query "SELECT date FROM dates") Row0
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liftEffect <<< assert $ rows == [row]
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let
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insertFood =
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execute conn (Query """
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INSERT INTO foods (name, delicious, price)
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VALUES ($1, $2, $3), ($4, $5, $6), ($7, $8, $9)
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""") (Row9
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"pork" true (D.fromString "8.30")
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"sauerkraut" false (D.fromString "3.30")
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"rookworst" true (D.fromString "5.60"))
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test conn "select column subset" $ do
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insertFood
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names <- query conn (Query """
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SELECT name, delicious
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FROM foods
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WHERE delicious
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ORDER BY name ASC
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""") Row0
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liftEffect <<< assert $ names == [Row2 "pork" true, Row2 "rookworst" true]
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test conn "delete returning columns subset" $ do
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insertFood
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deleted <- query conn (Query """
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DELETE FROM foods
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WHERE delicious
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RETURNING name, delicious
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""") Row0
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liftEffect <<< assert $ deleted == [Row2 "pork" true, Row2 "rookworst" true]
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test conn "delete returning command tag value" $ do
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insertFood
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deleted <- command conn (Query """
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DELETE FROM foods
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WHERE delicious
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""") Row0
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liftEffect <<< assert $ deleted == 2
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test conn "handling instant value" $ do
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before <- liftEffect $ (unwrap <<< unInstant) <$> now
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insertFood
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added <- query conn (Query """
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SELECT added
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FROM foods
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""") Row0
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after <- liftEffect $ (unwrap <<< unInstant) <$> now
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-- | timestamps are fetched without milliseconds so we have to
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-- | round before value down
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liftEffect <<< assert $ all
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(\(Row1 t) ->
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( unwrap $ unInstant t) >= (before - before % 1000.0)
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&& after >= (unwrap $ unInstant t))
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added
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test conn "handling decimal value" $ do
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insertFood
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sauerkrautPrice <- query conn (Query """
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SELECT price
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FROM foods
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WHERE NOT delicious
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""") Row0
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liftEffect <<< assert $ sauerkrautPrice == [Row1 (D.fromString "3.30")]
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transactionTest "integrity error handling" $ do
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withRollback conn do
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result <- onIntegrityError (pure "integrity error was handled") do
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insertFood
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insertFood
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pure "integrity error was not handled"
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liftEffect $ assert $ result == "integrity error was handled"
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test conn "handling date value" $ do
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let
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d1 = date 2010 2 31
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d2 = date 2017 2 1
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d3 = date 2020 6 31
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execute conn (Query """
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INSERT INTO dates (date)
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VALUES ($1), ($2), ($3)
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""") (Row3 d1 d2 d3)
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(dates :: Array (Row1 Date)) <- query conn (Query """
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SELECT *
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FROM dates
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ORDER BY date ASC
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""") Row0
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pgEqual 3 (length dates)
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liftEffect <<< assert $ all (\(Tuple (Row1 r) e) -> e == r) $ (zip dates [d1, d2, d3])
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test conn "handling json and jsonb value" $ do
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let jsonIn = fromFoldable [Tuple "a" 1, Tuple "a" 2, Tuple "2" 3]
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let expected = fromFoldable [Tuple "a" 2, Tuple "2" 3]
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execute conn (Query """
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INSERT INTO jsons (json, jsonb)
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VALUES ($1, $2)
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""") (Row2 jsonIn jsonIn)
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(js ∷ Array (Row2 (Object Int) (Object Int))) <- query conn (Query """SELECT * FROM JSONS""") Row0
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liftEffect $ assert $ all (\(Row2 j1 j2) → j1 == expected && expected == j2) js
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test conn "handling jsdate value" $ do
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let
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jsd1 = jsdate_ 2010.0 2.0 31.0 6.0 23.0 1.0 123.0
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jsd2 = jsdate_ 2017.0 2.0 1.0 12.0 59.0 42.0 999.0
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jsd3 = jsdate_ 2020.0 6.0 31.0 23.0 3.0 59.0 333.0
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execute conn (Query """
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INSERT INTO timestamps (timestamp)
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VALUES ($1), ($2), ($3)
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""") (Row3 jsd1 jsd2 jsd3)
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(timestamps :: Array (Row1 JSDate)) <- query conn (Query """
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SELECT *
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FROM timestamps
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ORDER BY timestamp ASC
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""") Row0
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pgEqual 3 (length timestamps)
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liftEffect <<< assert $ all (\(Tuple (Row1 r) e) -> e == r) $ (zip timestamps [jsd1, jsd2, jsd3])
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suite "PostgreSQL connection errors" $ do
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let doNothing _ = pure unit
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Test.Unit.test "connection refused" do
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testPool <- liftEffect $ newPool cannotConnectConfig
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runExceptT (withConnection testPool doNothing) >>= case _ of
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Left (ConnectionError cause) -> equal cause "ECONNREFUSED"
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_ -> Test.Unit.failure "foo"
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Test.Unit.test "no such database" do
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testPool <- liftEffect $ newPool noSuchDatabaseConfig
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runExceptT (withConnection testPool doNothing) >>= case _ of
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Left (ProgrammingError { code, message }) -> equal code "3D000"
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_ -> Test.Unit.failure "PostgreSQL error was expected"
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config :: PoolConfiguration
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config =
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{ user: Nothing
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, password: Nothing
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, host: Nothing
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, port: Nothing
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, database: "purspg"
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, max: Nothing
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, idleTimeoutMillis: Just 1000
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}
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noSuchDatabaseConfig :: PoolConfiguration
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noSuchDatabaseConfig =
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config { database = "this-database-does-not-exist" }
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cannotConnectConfig :: PoolConfiguration
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cannotConnectConfig =
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config { host = Just "127.0.0.1", port = Just 45287 }
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