-- | Coverage for 'Pqi.getvalue': the cell value at a position, 'Nothing'
-- for SQL @NULL@, and out-of-range row and column probes.
module Pqi.Conformance.Operation.Getvalue
  ( spec,
  )
where

import qualified Pqi
import Pqi.Conformance.Harness
import Pqi.Conformance.Prelude
import Test.Hspec

spec :: Pqi.Adapter -> SpecWith ByteString
spec :: Adapter -> SpecWith ByteString
spec Adapter
adapter =
  String -> SpecWith ByteString -> SpecWith ByteString
forall a. HasCallStack => String -> SpecWith a -> SpecWith a
describe String
"getvalue" do
    String
-> (ByteString -> IO ()) -> SpecWith (Arg (ByteString -> IO ()))
forall a.
(HasCallStack, Example a) =>
String -> a -> SpecWith (Arg a)
it String
"reads cells, nulls, and degrades out of range" \ByteString
conninfo ->
      Adapter
-> ByteString
-> (Connection
    -> IO
         (Maybe
            (Maybe ByteString, Maybe ByteString, Maybe ByteString,
             Maybe ByteString)))
-> IO ()
forall a.
(Eq a, Show a, HasCallStack) =>
Adapter -> ByteString -> (Connection -> IO a) -> IO ()
differential Adapter
adapter ByteString
conninfo \Connection
connection -> do
        result <- Connection -> ByteString -> IO (Maybe Result)
Pqi.exec Connection
connection ByteString
"select 'hello' :: text, null :: int4"
        for result \Result
r -> do
          present <- Result -> Int32 -> Int32 -> IO (Maybe ByteString)
Pqi.getvalue Result
r Int32
0 Int32
0
          nullCell <- Pqi.getvalue r 0 1
          badRow <- Pqi.getvalue r 1 0
          badColumn <- Pqi.getvalue r 0 5
          pure (present, nullCell, badRow, badColumn)