def test_core_deidentify_safe_private(a_dataset, a_safe_private_definition):
"""Private elements marked as safe should not be removed by Clean()"""
assert Tag("00b10010") in a_dataset # a private creator tag
assert Tag("00b11001") in a_dataset # and a private tag
# A core instance that should clean() private tags, but one tag is deemed safe
ruleset = RuleSet(
[Rule(PrivateTags(), Clean(safe_private=a_safe_private_definition))])
core = Core(profile=Profile([ruleset]))
# One tag should be kept
deltas = extract_signature(deidentifier=core, dataset=a_dataset)
assert {x.tag: x for x in deltas}[Tag("00b10010")].status == "REMOVED"
assert {x.tag: x for x in deltas}[Tag("00b11001")].status == "UNCHANGED"
# but only so long as dataset has modality = CT
a_dataset.Modality = "US"
deltas = extract_signature(deidentifier=core, dataset=a_dataset)
assert {x.tag: x for x in deltas}[Tag("00b10010")].status == "REMOVED"
assert {x.tag: x for x in deltas}[Tag("00b11001")].status == "REMOVED"
def test_default_core(a_safe_private_definition):
core = create_default_core(
safe_private_definition=a_safe_private_definition)
core.deidentify(CTDatasetFactory())
signature = extract_signature(deidentifier=core,
dataset=CTDatasetFactory())
assert len(signature) == 108
with pytest.raises(DeidentificationException):
# suspicious, but this type of dataset is not in a_safe_private_definition
core.deidentify(CTDatasetFactory(Modality="US"))
def test_signature(a_core, a_dataset):
deltas = extract_signature(a_core, a_dataset)
assert [x.status for x in deltas] == [
DeltaStatusCodes.UNCHANGED,
DeltaStatusCodes.CHANGED,
DeltaStatusCodes.UNCHANGED,
DeltaStatusCodes.REMOVED,
DeltaStatusCodes.REMOVED,
DeltaStatusCodes.REMOVED,
DeltaStatusCodes.REMOVED,
DeltaStatusCodes.CREATED,
]
def test_signature_realistic_dataset(a_core):
"""Check with a realistic dataset. Nothing should crash"""
deltas = extract_signature(a_core, CTDatasetFactory())
assert len([x for x in deltas if x.has_changed()]) == 19
def test_signature_include_each_element(a_core, a_dataset):
"""Make sure all DICOM elements in dataset get a delta"""
deltas = extract_signature(a_core, a_dataset)
assert len(
deltas) == len(a_dataset) + 1 # +1 because a_core inserts 1 element
def test_signature_leave_input_dataset_unaltered(a_core, a_dataset):
"""Make sure extracting a signature does not alter input dataset"""
len_before = len(a_dataset)
extract_signature(a_core, a_dataset)
assert len(a_dataset) == len_before