mirror of
https://github.com/postgres-haskell/postgres-wire.git
synced 2024-11-23 08:52:33 +03:00
237 lines
8.1 KiB
Haskell
237 lines
8.1 KiB
Haskell
module Driver where
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import Data.Monoid ((<>))
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import Data.Foldable
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import Control.Monad
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import Data.Maybe
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import Data.Either
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import qualified Data.ByteString as B
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import qualified Data.ByteString.Char8 as BS
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import qualified Data.Vector as V
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import Test.Tasty
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import Test.Tasty.HUnit
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import Database.PostgreSQL.Driver.Connection
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import Database.PostgreSQL.Driver.StatementStorage
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import Database.PostgreSQL.Driver.Query
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import Database.PostgreSQL.Protocol.Types
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import Connection
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testDriver :: TestTree
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testDriver = testGroup "Driver"
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[ testCase "Single batch" testBatch
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, testCase "Two batches" testTwoBatches
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, testCase "Multiple batches" testMultipleBatches
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, testCase "Empty query" testEmptyQuery
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, testCase "Query without result" testQueryWithoutResult
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, testCase "Invalid queries" testInvalidBatch
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, testCase "Describe statement" testDescribeStatement
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, testCase "Describe statement with no data" testDescribeStatementNoData
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, testCase "Describe empty statement" testDescribeStatementEmpty
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, testCase "SimpleQuery" testSimpleQuery
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, testCase "SimpleAndExtendedQuery" testSimpleAndExtendedQuery
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, testCase "PreparedStatementCache" testPreparedStatementCache
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, testCase "Query with large response" testLargeQuery
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]
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makeQuery1 :: B.ByteString -> Query
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makeQuery1 n = Query "SELECT $1" (V.fromList [(Oid 23, Just n)])
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Text Text AlwaysCache
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makeQuery2 :: B.ByteString -> B.ByteString -> Query
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makeQuery2 n1 n2 = Query "SELECT $1 + $2"
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(V.fromList [(Oid 23, Just n1), (Oid 23, Just n2)]) Text Text AlwaysCache
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fromRight :: Either e a -> a
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fromRight (Right v) = v
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fromRight _ = error "fromRight"
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fromMessage :: Either e DataMessage -> B.ByteString
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fromMessage (Right (DataMessage [v])) = fromJust $ V.head v
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fromMessage _ = error "from message"
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-- | Single batch.
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testBatch :: IO ()
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testBatch = withConnection $ \c -> do
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let a = "5"
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b = "3"
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sendBatchAndSync c [makeQuery1 a, makeQuery1 b]
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waitReadyForQuery c
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r1 <- readNextData c
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r2 <- readNextData c
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a @=? fromMessage r1
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b @=? fromMessage r2
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-- | Two batches in single transaction.
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testTwoBatches :: IO ()
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testTwoBatches = withConnection $ \c -> do
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let a = 7
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b = 2
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sendBatchAndFlush c [ makeQuery1 (BS.pack (show a))
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, makeQuery1 (BS.pack (show b))]
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r1 <- fromMessage <$> readNextData c
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r2 <- fromMessage <$> readNextData c
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sendBatchAndSync c [makeQuery2 r1 r2]
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r <- readNextData c
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waitReadyForQuery c
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BS.pack (show $ a + b) @=? fromMessage r
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-- | Multiple batches with individual transactions in single connection.
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testMultipleBatches :: IO ()
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testMultipleBatches = withConnection $ replicateM_ 10 . assertSingleBatch
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where
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assertSingleBatch c = do
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let a = "5"
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b = "6"
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sendBatchAndSync c [ makeQuery1 a, makeQuery1 b]
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r1 <- readNextData c
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a @=? fromMessage r1
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r2 <- readNextData c
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b @=? fromMessage r2
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waitReadyForQuery c
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-- | Query is empty string.
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testEmptyQuery :: IO ()
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testEmptyQuery = assertQueryNoData $
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Query "" V.empty Text Text NeverCache
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-- | Query than returns no datarows.
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testQueryWithoutResult :: IO ()
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testQueryWithoutResult = assertQueryNoData $
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Query "SET client_encoding TO UTF8" V.empty Text Text NeverCache
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-- | Asserts that query returns no data rows.
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assertQueryNoData :: Query -> IO ()
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assertQueryNoData q = withConnection $ \c -> do
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sendBatchAndSync c [q]
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r <- fromRight <$> readNextData c
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waitReadyForQuery c
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DataMessage [] @=? r
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-- | Asserts that all the received data rows are in form (Right _)
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checkRightResult :: Connection -> Int -> Assertion
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checkRightResult conn 0 = pure ()
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checkRightResult conn n = readNextData conn >>=
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either (const $ assertFailure "Result is invalid")
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(const $ checkRightResult conn (n - 1))
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-- | Asserts that (Left _) as result exists in the received data rows.
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checkInvalidResult :: Connection -> Int -> Assertion
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checkInvalidResult conn 0 = assertFailure "Result is right"
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checkInvalidResult conn n = readNextData conn >>=
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either (const $ pure ())
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(const $ checkInvalidResult conn (n -1))
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-- | Diffirent invalid queries in batches.
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testInvalidBatch :: IO ()
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testInvalidBatch = do
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let rightQuery = makeQuery1 "5"
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q1 = Query "SEL $1" (V.fromList [(Oid 23, Just "5")]) Text Text NeverCache
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q2 = Query "SELECT $1" (V.fromList [(Oid 23, Just "a")]) Text Text NeverCache
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q4 = Query "SELECT $1" (V.fromList []) Text Text NeverCache
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assertInvalidBatch "Parse error" [q1]
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assertInvalidBatch "Invalid param" [ q2]
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assertInvalidBatch "Missed oid of param" [ q4]
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assertInvalidBatch "Parse error" [rightQuery, q1]
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assertInvalidBatch "Invalid param" [rightQuery, q2]
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assertInvalidBatch "Missed oid of param" [rightQuery, q4]
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where
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assertInvalidBatch desc qs = withConnection $ \c -> do
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sendBatchAndSync c qs
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waitReadyForQuery c
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checkInvalidResult c $ length qs
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-- | Describes usual statement.
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testDescribeStatement :: IO ()
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testDescribeStatement = withConnection $ \c -> do
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r <- describeStatement c $
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"select typname, typnamespace, typowner, typlen, typbyval,"
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<> "typcategory, typispreferred, typisdefined, typdelim, typrelid,"
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<> "typelem, typarray from pg_type where typtypmod = $1 "
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<> "and typisdefined = $2"
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assertBool "Should be Right" $ isRight r
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-- | Describes statement that returns no data.
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testDescribeStatementNoData :: IO ()
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testDescribeStatementNoData = withConnection $ \c -> do
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r <- fromRight <$> describeStatement c "SET client_encoding TO UTF8"
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assertBool "Should be empty" $ V.null (fst r)
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assertBool "Should be empty" $ V.null (snd r)
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-- | Describes statement that is empty string.
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testDescribeStatementEmpty :: IO ()
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testDescribeStatementEmpty = withConnection $ \c -> do
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r <- fromRight <$> describeStatement c ""
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assertBool "Should be empty" $ V.null (fst r)
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assertBool "Should be empty" $ V.null (snd r)
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-- | Query using simple query protocol.
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testSimpleQuery :: IO ()
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testSimpleQuery = withConnection $ \c -> do
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r <- sendSimpleQuery c $
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"DROP TABLE IF EXISTS a;"
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<> "CREATE TABLE a(v int);"
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<> "INSERT INTO a VALUES (1), (2), (3);"
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<> "SELECT * FROM a;"
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<> "DROP TABLE a;"
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assertBool "Should be Right" $ isRight r
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-- | Simple and extended queries in a sinle connection.
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testSimpleAndExtendedQuery :: IO ()
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testSimpleAndExtendedQuery = withConnection $ \c -> do
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let a = "7"
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b = "2"
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d = "5"
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sendBatchAndSync c [ makeQuery1 a , makeQuery1 b]
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waitReadyForQuery c
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checkRightResult c 2
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rs <- sendSimpleQuery c "SELECT * FROM generate_series(1, 10)"
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assertBool "Should be Right" $ isRight rs
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sendBatchAndSync c [makeQuery1 d]
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fr <- waitReadyForQuery c
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assertBool "Should be Right" $ isRight fr
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r <- fromMessage <$> readNextData c
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r @=? d
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-- | Test that cache of statements works.
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testPreparedStatementCache :: IO ()
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testPreparedStatementCache = withConnection $ \c -> do
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let a = 7
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b = 2
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sendBatchAndSync c [ makeQuery1 (BS.pack (show a))
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, makeQuery1 (BS.pack (show b))
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, makeQuery2 (BS.pack (show a)) (BS.pack (show b))]
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waitReadyForQuery c
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r1 <- fromMessage <$> readNextData c
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r2 <- fromMessage <$> readNextData c
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r3 <- fromMessage <$> readNextData c
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BS.pack (show a) @=? r1
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BS.pack (show b) @=? r2
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BS.pack (show $ a + b) @=? r3
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size <- getCacheSize $ connStatementStorage c
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-- 2 different statements were send
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2 @=? size
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-- | Test that large responses are properly handled
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testLargeQuery :: IO ()
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testLargeQuery = withConnection $ \c -> do
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sendBatchAndSync c [Query largeStmt V.empty Text Text NeverCache ]
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waitReadyForQuery c
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r <- readNextData c
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assertBool "Should be Right" $ isRight r
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where
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largeStmt = "select typname, typnamespace, typowner, typlen, typbyval,"
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<> "typcategory, typispreferred, typisdefined, typdelim,"
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<> "typrelid, typelem, typarray from pg_type "
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