@Test
    fun insertUserTest() {
        val user = User(userName = "Test User")
        val userId = appDatabase.userDao().insertUser(user)
        val userFromDb = appDatabase.userDao().user
        assertEquals(userId, 1)
        assertEquals(userFromDb?.userName, user.userName)
    }

    @Test
    fun deleteUserTest() {
        val user = User(userName = "Test User")
        appDatabase.userDao().insertUser(user)
        var userFromDb = appDatabase.userDao().user
        appDatabase.userDao().deleteUser(userFromDb)
        userFromDb = appDatabase.userDao().user
        assertNull(userFromDb)
    }