unitTests :: TestTree
unitTests = testGroup "Unit tests" [
    testGroup "Serialisation"   $ testCases serializationTest
  , testGroup "Deserialisation" $ testCases deserializationTest
  ]
unitTests :: TestTree
unitTests = testGroup "Unit tests" [
    testGroup "Serialisation"   $ testCases serializationTest
  , testGroup "Deserialisation" $ testCases deserializationTest
  ]
unitTests = testGroup "Unit tests" [
    testGroup "Serialisation"   $ testCases serializationTest
  , testGroup "Deserialisation" $ testCases deserializationTest
  ]