graphql-engine/server/tests-hspec/Harness/TestEnvironment.hs
Daniel Harvey 2e2b894ed3 tests: log everything posted to HGE in hspec tests
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5636
GitOrigin-RevId: d6bc47857e3ad3c6a995284ba6756a643cfb9c4c
2022-08-30 08:54:04 +00:00

89 lines
2.9 KiB
Haskell

-- | TestEnvironment shared by tests. We intentionally use an abstract type to
-- wrap up the values we need for tests, with accessors. This way, the
-- tests are less liable to refactorings when we add or change the
-- testEnvironment.
module Harness.TestEnvironment
( TestEnvironment (..),
Server (..),
getServer,
serverUrl,
stopServer,
testLog,
testLogShow,
testLogBytestring,
)
where
import Control.Concurrent.Async (Async)
import Control.Concurrent.Async qualified as Async
import Data.ByteString.Lazy qualified as LBS
import Data.String (fromString)
import Data.Text qualified as T
import Data.Text.Encoding
import Data.UUID (UUID)
import Data.Word
import Harness.Test.BackendType
import Hasura.Prelude
import System.Log.FastLogger qualified as FL
-- | A testEnvironment that's passed to all tests.
data TestEnvironment = TestEnvironment
{ -- | connection details for the instance of HGE we're connecting to
server :: Server,
-- | shared function to log information from tests
logger :: FL.LogStr -> IO (),
-- | action to clean up logger
loggerCleanup :: IO (),
-- | a uuid generated for each test suite used to generate a unique
-- `SchemaName`
uniqueTestId :: UUID,
-- | the main backend type of the test, if applicable (ie, where we are not
-- testing `remote <-> remote` joins or someting similarly esoteric)
backendType :: Maybe BackendType
}
instance Show TestEnvironment where
show TestEnvironment {server} = "<TestEnvironment: " ++ urlPrefix server ++ ":" ++ show (port server) ++ " >"
-- | Information about a server that we're working with.
data Server = Server
{ -- | The port to connect on.
port :: Word16,
-- | The full URI prefix e.g. http://localhost
urlPrefix :: String,
-- | The thread that the server is running on, so we can stop it later.
thread :: Async ()
}
-- | Retrieve the 'Server' associated with some 'TestEnvironment'.
getServer :: TestEnvironment -> Server
getServer TestEnvironment {server} = server
-- | Extracts the full URL prefix and port number from a given 'Server'.
--
-- @
-- > serverUrl (Server 8080 "http://localhost" someThreadId)
-- "http://localhost:8080"
-- @
serverUrl :: Server -> String
serverUrl Server {urlPrefix, port} = urlPrefix ++ ":" ++ show port
-- | Forcibly stop a given 'Server'.
stopServer :: Server -> IO ()
stopServer Server {thread} = Async.cancel thread
-- | log a string out in tests
testLog :: TestEnvironment -> String -> IO ()
testLog testEnv =
logger testEnv . fromString . (<>) "\n"
-- | log a Show-able value in tests
testLogShow :: (Show a) => TestEnvironment -> a -> IO ()
testLogShow testEnv =
testLog testEnv . show
-- | log a UTF-8 Bytestring. Forgive me Padre for converting through String
testLogBytestring :: TestEnvironment -> LBS.ByteString -> IO ()
testLogBytestring testEnv =
testLog testEnv . T.unpack . decodeUtf8 . LBS.toStrict