This is a map i made that you can use to test yours or someone elses texturepack it has pretty much all of the blocks in game at the moment of 1.7.4 and i will be updating it for future versions it has everything you need for your texturepack testing needs including but not limited too
-Blocks
-Item catalog
-Passive and Hostile mob area
-GUI area
-End
-Paintings
-and more!
Tell me if i missed anything or if you have any suggestions or just what you think of it. :)