In order to run the unit and functional Glance tests on Windows, we
have to:
* avoid monkey patching the os module on Windows (which causes Popen
to fail)
* update sqlite connection URL
* avoid os.fork, not available on Windows.
* we'll use subprocess.Popen when spinning up http servers.
* for the really simple ones defined in the test helpers, we'll just
use threads
* do not attempt to connect to '0.0.0.0', use '127.0.0.1' instead
* some tests aren't properly skipped (xattr ones), so we're covering that
as well
* skip log rotation test, we can't move in-use files. Log rotation can
be performed by the log handler itself.
* expect an exception when hitting connection timeouts
* avoid installing unavailable test requirements (xattr, pysendfile)
* pin the instance creation timestamp. some tests that deal with
markers rely on ordering, which can be flipped if the timestamps are
identical (can happen in case of resources created one after the
other, not sure yet if this happens really fast or the clock isn't
accurate enough).
* add a few seconds to some timeouts (much needed when running the tests
in VMs).
blueprint windows-support
Change-Id: Ife69f56a3f9f4d81e1e2e47fde4778efd490938f
98b7ef195c