Allow removing VMs based on multiple prefixes at once. Removing them
separately doesn't handle all the dependencies (default_netvm, netvm)
correctly. This is needed for backup compatibility tests, where VMs are
created with `test-` prefix and `disp-tests-`. Additionally backup code
will create `disp-no-netvm`, which also may need to be removed.
If QUBES_TEST_TEMPLATES or QUBES_TEST_LOAD_ALL is set, create testcases
on modules import, instead of waiting until `load_tests` is called.
The `QUBES_TEST_TEMPLATES` doesn't require `qubes.xml` access, so it
should be safe to do regardless of the environment. The
`QUBES_TEST_LOAD_ALL` force loading tests (and reading `qubes.xml`)
regardless.
This is useful for test runners not supporting load_tests protocol. Or
with limited support - for example both default `unittest` runner and
`nose2` can either use load_tests protocol _or_ select individual tests.
Setting any of those variable allow to run a single test with those
runners.
With this feature used together load_tests protocol, tests could be
registered twice. Avoid this by not listing already defined test classes
in create_testcases_for_templates (according to load_tests protocol,
those should already be registered).
Allow easily list templates to be tested, without enumerating all the
test classes. This is especially useful with nose2 runner which can't
use load tests protocol _and_ select subset of tests.
If any object is leaked, QubesTestCase.cleanup_gc() raises an exception,
which have leaked objects list referenced in its traceback. This happens
after cleanup_traceback(), so isn't cleaned, causing cleanup_gc() fail
for all the further tests in the same test run.
Avoid this, by dropping list just before checking if any object is
leaked.
When a VM (or its template) does not explicitly set a qrexec_timeout,
fall back to a global default_qrexec_timeout (with default value 60),
instead of hardcoding the fallback value to 60.
This makes it easy to set a higher timeout for the whole system, which
helps users who habitually launch applications from several (not yet
started) VMs at the same time. 60 seconds can be too short for that.
* tests-20180913:
tests: fix time sync test
tests: wait for DispVM's qubes.VMShell exit
tests: exclude whonixcheck and NetworkManager from editor window search
tests: reenable some qrexec tests, convert them to py3k/asyncio
tests: skip tests not relevant on Whonix
tests: improve shutdown timeout handling
tests: drop qvm-prefs tests
qvm-sync-clock no longer fetches time from the network, by design.
So, lets not break clockvm's time and check only if everything else
correctly synchronize with it.
It isn't enough to wait for window to disappear, the service may still
be running. And if it is, test cleanup logic will complain about FD
leak.
To avoid deadlock on some test failure, do it with a timeout.
volume.path and volume.export() refer to the same thing in lvm_thin and
'file', but not in file-reflink (where volume.path is the -dirty.img,
which doesn't exist if the volume is not started).
Use the file-reflink storage driver if /var/lib/qubes is on a filesystem
that supports reflinks, e.g. when the btrfs layout was selected in
Anaconda. If it doesn't support reflinks (or if detection fails, e.g. in
an unprivileged test environment), use 'file' as before.
_wait_and_reraise() is similar to asyncio.gather(), but it preserves the
current behavior of waiting for all futures and only _then_ reraising
the first exception (if there is any) in line.
Also switch Storage.create() and Storage.clone() to _wait_and_reraise().
Previously, they called asyncio.wait() and implicitly swallowed all
exceptions.
