[morzh]

Testing caps is probably a good idea.....myself, never do it.
I am yet to meet my first bad aluminum can or film cap in my 32 years professional plus 13 years prior to that life.
Tantallums - that's another story, their infant mortality is just bad. And in some is simply horrific - I saw 10% of caps to heat up and melt off of the board I left in a lab overnight.

That is, I only use brands.