So, I needed a texture pack test map for Minetest Game to fully display my textures.
But, there doesn't seem to be any current ones; so I went ahead and created a simplistic one.
I'm pretty sure I got all the major nodes with unique textures, but it's possible I missed something.
The world is creative, and 'flat'; with a simple tower platform to stand on for the perfect view.
It is to be used with "Minetest 0.5.0-dev". As I've added in the new nodes like the kelp node.
So, just a heads up if you use another version; as you will see unknown nodes.
Anyway, hope this is of some use to any other texture pack creators.
Edit: Update - October 2018 - Added berry bush leaves.
Preview using the default Minetest Game textures:
Download:
https://github.com/MysticTempest/Simple-Texture-Pack-Test-Map/archive/master.zip