Fake RecyclerView Adapter for testing purpose

FakeAdapter

private class FakeAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = object :
        RecyclerView.ViewHolder(TextView(parent.context)) {}

    override fun getItemCount() = 100

    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
        (holder.itemView as? TextView)?.text = position.toString()
    }
}