def owner(request, resource):
body = Body(copy.deepcopy(OWNER))
if request.param == 'state-changing-cause':
cause = ChangingCause(
logger=logging.getLogger('kopf.test.fake.logger'),
indices=OperatorIndexers().indices,
resource=resource,
patch=Patch(),
memo=Memo(),
body=body,
initial=False,
reason=Reason.NOOP,
)
with context([(cause_var, cause)]):
yield body
elif request.param == 'event-watching-cause':
cause = WatchingCause(
logger=logging.getLogger('kopf.test.fake.logger'),
indices=OperatorIndexers().indices,
resource=resource,
patch=Patch(),
memo=Memo(),
body=body,
type='irrelevant',
event=RawEvent(type='irrelevant', object=OWNER),
)
with context([(cause_var, cause)]):
yield body
else:
raise RuntimeError(f"Wrong param for `owner` fixture: {request.param!r}")
def test_with_parent(parent_handler, resource_registry_cls, cause_factory):
cause = cause_factory(resource_registry_cls)
registry = resource_registry_cls()
with context([(handler_var, parent_handler), (subregistry_var, registry)]):
kopf.subhandler()(child_fn)
handlers = registry.get_handlers(cause)
assert len(handlers) == 1
assert handlers[0].fn is child_fn
assert handlers[0].id == 'parent_fn/child_fn'
async def subhandling_context() -> AsyncIterator[None]:
with invocation.context([
(subregistry_var, registries.ChangingRegistry()),
(subexecuted_var, False),
]):
# Go for normal handler invocation.
yield
# If the sub-handlers are not called explicitly, run them implicitly
# as if it was done inside of the handler (still under the try-finally clause).
if not subexecuted_var.get():
await execute()
def test_invalid_oldnew_for_inappropriate_subhandlers(resource, decorator,
registry):
@decorator(*resource)
def fn(**_):
@kopf.subhandler(field='f', old='x')
def fn2(**_):
pass
subregistry = ChangingRegistry()
handler = registry._changing.get_all_handlers()[0]
with context([(handler_var, handler), (subregistry_var, subregistry)]):
with pytest.raises(TypeError,
match="can only be used in update handlers"):
handler.fn()
async def invoke_handler(
*,
handler: Handler,
cause: Cause,
retry: int,
started: datetime.datetime,
runtime: datetime.timedelta,
settings: configuration.OperatorSettings,
lifecycle: Optional[LifeCycleFn],
subrefs: Set[ids.HandlerId],
extra_context: ExtraContext,
) -> Optional[Result]:
"""
Invoke one handler only, according to the calling conventions.
Specifically, calculate the handler-specific fields (e.g. field diffs).
Ensure the global context for this asyncio task is set to the handler and
its cause -- for proper population of the sub-handlers via the decorators
(see `@kopf.subhandler`).
"""
# For the field-handlers, the old/new/diff values must match the field, not the whole object.
cause = handler.adjust_cause(cause)
# The context makes it possible and easy to pass the kwargs _through_ the user-space handlers:
# from the framework to the framework's helper functions (e.g. sub-handling, hierarchies, etc).
with invocation.context([
(sublifecycle_var, lifecycle),
(subsettings_var, settings),
(subrefs_var, list(subrefs_var.get([])) + [subrefs]),
(handler_var, handler),
(cause_var, cause),
]):
async with extra_context():
result = await invocation.invoke(
handler.fn,
settings=settings,
kwargsrc=cause,
kwargs=dict(
param=handler.param,
retry=retry,
started=started,
runtime=runtime,
),
)
# Since we know that we invoked the handler, we cast "any" result to a handler result.
return Result(result)
def test_subhandler_imperatively(parent_handler, cause_factory):
cause = cause_factory(reason=Reason.UPDATE)
registry = ChangingRegistry()
subregistry_var.set(registry)
def fn(**_):
pass
with context([(handler_var, parent_handler)]):
kopf.register(fn)
handlers = registry.get_handlers(cause)
assert len(handlers) == 1
assert handlers[0].fn is fn
