def _setup(self, filter_=True):
inst = PathStore("path_policy")
inst.path_policy = create_mock(["check_filters"])
if not filter_:
inst.path_policy.check_filters.side_effect = SCIONPathPolicyViolated()
pcb = create_mock(["get_hops_hash", "get_timestamp"],
class_=PathSegment)
return inst, pcb
def check_filters(self, pcb):
"""
Runs some checks, including: unwanted ASes and min/max property values.
:param pcb: beacon to analyze.
:type pcb: :class:`PathSegment`
:raises:
SCIONPathPolicyViolated if any unwanted AS is present or a range is not respected.
"""
assert isinstance(pcb, PathSegment), type(pcb)
isd_as = self._check_unwanted_ases(pcb)
if isd_as:
raise SCIONPathPolicyViolated("Unwanted AS(%s): %s", isd_as,
pcb.short_desc())
reasons = self._check_property_ranges(pcb)
if reasons:
raise SCIONPathPolicyViolated(", ".join(reasons), pcb.short_desc())
ia = self._check_remote_ifid(pcb)
if ia:
raise SCIONPathPolicyViolated("Remote IFID of %s unknown", ia)