@MountainMarker - 14w03b - Testing For Player NBT Data

Via: https://www.youtube.com/watch?v=lkzDB6xt2lU

"I know its probably in the description, but could you give me the exact command to test if you are wearing armor and which piece(s)?"

Must be in order by Slot number (ascending) and no other items can be in the inventory. Must include all 4 base tags "id", "Damage", "Count", and "Slot", labeling their tag-types. Thus cannot testfor if armor becomes unexpectedly damaged. Full iron armor:

/testfor @p {Inventory:[{id:minecraft:iron_boots,Damage:0s,Count:1b,Slot:100b},{id:minecraft:iron_leggings,Damage:0s,Count:1b,Slot:101b},{id:minecraft:iron_chestplate,Damage:0s,Count:1b,Slot:102b},{id:minecraft:iron_helmet,Damage:0s,Count:1b,Slot:103b}]}