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author | Daniel P. Berrangé <berrange@redhat.com> | 2022-05-17 15:01:19 +0100 |
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committer | Daniel P. Berrangé <berrange@redhat.com> | 2022-06-08 16:43:52 +0100 |
commit | e3fab09382d4a6c439820ed5e6930e57716dcb50 (patch) | |
tree | 75bd89dbae775c6e0b255453a67dbde3a824f879 /tests/eventmock.py | |
parent | b9f79758c973db088b5c687425c6613796fdb250 (diff) | |
download | libvirt-python-e3fab09382d4a6c439820ed5e6930e57716dcb50.tar.gz |
tests: use mocks to allow calling virEventRegisterImpl many times
We currently have to run each of the test_aio.py test cases in a
separate process, because libvirt.virEventRegisterImpl can only be
called once per process. This leads to quite unpleasant console
output when running tests.
By introducing a mock for libvirt.virEventRegisterImpl we can
regain the ability to run everything in a single process. The only
caveat is that it relies on tests to fully cleanup, but in practice
this is ok for our current tests.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'tests/eventmock.py')
-rw-r--r-- | tests/eventmock.py | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/tests/eventmock.py b/tests/eventmock.py new file mode 100644 index 0000000..7298086 --- /dev/null +++ b/tests/eventmock.py @@ -0,0 +1,82 @@ + +import libvirt +import libvirtmod + +_add_handle_impl = None +_update_handle_impl = None +_remove_handle_impl = None + +_add_timeout_impl = None +_update_timeout_impl = None +_remove_timeout_impl = None + +_registered = False + +def _add_handle(fd: int, event: int, cb: libvirt._EventCB, opaque: libvirt._T) -> int: + global _add_handle_impl + assert _add_handle_impl != None + return _add_handle_impl(fd, event, cb, opaque) + +def _update_handle(watch: int, event: int) -> None: + global _update_handle_impl + assert _update_handle_impl != None + _update_handle_impl(watch, event) + +def _remove_handle(watch: int) -> int: + global _remove_handle_impl + assert _remove_handle_impl != None + return _remove_handle_impl(watch) + +def _add_timeout(timeout: int, cb: libvirt._TimerCB, opaque: libvirt._T) -> int: + global _add_timeout_impl + assert _add_timeout_impl != None + return _add_timeout_impl(timeout, cb, opaque) + +def _update_timeout(timer: int, timeout: int) -> None: + global _update_timeout_impl + assert _update_timeout_impl != None + _update_timeout_impl(timer, timeout) + +def _remove_timeout(timer: int) -> int: + global _remove_timeout_impl + assert _remove_timeout_impl != None + return _remove_timeout_impl(timer) + +# libvirt.virEventRegisterImpl() is a one time call per process +# This method is intended to be used with mock patching, so that +# tests can get the appearance of being able to call +# virEventRegisterImpl many times. +# +# Note, this relies on the tests closing all connection objects +# and not leaving any handles/timers pending when they stop +# running their event loop impl. + +def virEventRegisterImplMock(add_handle_impl, + update_handle_impl, + remove_handle_impl, + add_timeout_impl, + update_timeout_impl, + remove_timeout_impl): + global _add_handle_impl + global _update_handle_impl + global _remove_handle_impl + global _add_timeout_impl + global _update_timeout_impl + global _remove_timeout_impl + + _add_handle_impl = add_handle_impl + _update_handle_impl = update_handle_impl + _remove_handle_impl = remove_handle_impl + _add_timeout_impl = add_timeout_impl + _update_timeout_impl = update_timeout_impl + _remove_timeout_impl = remove_timeout_impl + + global _registered + if not _registered: + libvirtmod.virEventRegisterImpl(_add_handle, + _update_handle, + _remove_timeout, + _add_timeout, + _update_timeout, + _remove_timeout) + _registered = True |