      `shouldBe` (Just mockItem, [[GetItem existingItemId]])
    it "should return Nothing, if the Item does not belong to user" $
      runTest (getItemBelongingToUserId existingItemId 456 mockEnv)
      `shouldBe` (Nothing, [[GetItem existingItemId]])
    it "should return Nothing, if the Item does not exist" $
      runTest (getItemBelongingToUserId 123 existingItemUserId mockEnv)