No test environment here aside from my development machines
(home, office, and laptop), but that's mostly because I'm
not at a software company and trying to buy more hardware
is like getting blood from a stone. Last job I had as a
developer (I'm supposed to be an admin now, but I end up
writing internal-use apps anyhow), I fought hard to get
proper test environments and bug tracking systems in place,
but it just wouldn't be worth it at my current company.