Found some 6 month old mushroom gel caps - how do I test if they're still good?

[Extinction]

Forgot I had these stored away in a cardboard box in a cool, dry area for the last 6 months or so. They came from a friend who makes them himself, basically grinds up mushrooms and puts them in caps from what I gather.

So how do I test if they're going to make me sick or something? Should I crack them open and inspect?

Apologies in advance, I am a noob

Edit: Should have googled this first, found my answers here pretty much

http://www.shroomery.org/6254/MUSHROOM-CAPSULE-FAQ#4

Seems like they may still be ok, but probably not as potent. Going to find out I guess

 

[nAON]

I'm not really sure if you can test if the active ingredients have degraded, but may be worth looking it over in case some damp got in and its mouldy or something.

 

[Solipsis]

Yes, right ^ open one up and check how dry the stuff is, if it pulverizes like a cracker or is still a little flexible - it should be cracker dry. Then check if you smell anything obnoxious besides a possible slight shroomy smell (I doubt it even has that), or see weird discolorations besides black and blue. Wet and green is what you could look out for, as an example.

Forget about checking the potency in any way other than just eating some and trying them out. Assume they are full strength, that way it is not as easy to overdose.

I see that you have some answers already, so if there is nothing else - let's not bump this further, and it can be closed.