[test] add Test.Core.AsyncUpdates

test/Test/Core/AsyncUpdates.hs

+{-|
+Module      : Core.AsyncUpdates
+Description :
+Copyright   : (c) CNRS, 2017-Present
+License     : AGPL + CECILL v3
+Maintainer  : team@gargantext.org
+Stability   : experimental
+Portability : POSIX
+
+-}
+
+module Test.Core.AsyncUpdates where
+
+import Data.Aeson qualified as A
+import Gargantext.Core.AsyncUpdates.CentralExchange.Types
+import Gargantext.Prelude
+import Test.Hspec
+
+test :: Spec
+test = do
+  describe "check if json serialization of CEMessage works" $ do
+    it "UpdateTreeFirstLevel serialization" $ do
+      let ce = UpdateTreeFirstLevel 15
+      A.decode (A.encode ce) `shouldBe` (Just ce)