[PATCH] Tests for stale responses from upstream that may be cached.

[Thorvaldur Thorvaldsson]

Hi there,

I mentioned in another thread that I'd add a test case for
the most recent revision of the "cache stale from upstream" patch.

I'll post it here in a moment.

By the way, I'm sure there's a better way to set up the tests so
I don't expect this patch to be accepted as-is. It's more about
showing how the effect of the patch.

Best regards,
Thorvaldur