def test_serialize_deserialize_pickle():
"""
Test that serialization and the deserialization of a
MemoryDetectionElement instance with populated detection components
results in a different but equivalent instance.
"""
expected_uuid = 'some-uuid'
expected_bbox = AxisAlignedBoundingBox([0, 0], [1, 2])
expected_ce_map = {'a': .24, 'b': 0.5, 0: .26}
expected_ce = MemoryClassificationElement('ce-type', expected_uuid)
expected_ce.set_classification(expected_ce_map)
e1 = MemoryDetectionElement(expected_uuid)
e1._bbox = expected_bbox
e1._classification = expected_ce
buff = pickle.dumps(e1)
#: :type: MemoryDetectionElement
e2 = pickle.loads(buff)
assert e2 is not e1
assert e2.uuid == expected_uuid
e2_bbox, e2_ce = e2.get_detection()
# Intentionally checking e2_bbox is not the same instance
assert e2_bbox is not expected_bbox # lgtm[py/comparison-using-is]
assert e2_bbox == expected_bbox
assert e2_ce is not expected_ce
assert e2_ce == expected_ce
assert e2_ce.get_classification() == expected_ce_map
def test_has_detection_one_none_member():
"""
Test that has_detections is false if at least one of the members is None.
"""
# Possible "valid" values.
bbox = mock.MagicMock(spec_set=AxisAlignedBoundingBox)
celem = mock.MagicMock(spec_set=ClassificationElement)
celem.has_classifications.return_value = True
inst = MemoryDetectionElement(0)
inst._bbox = None
inst._classification = celem
assert inst.has_detection() is False
inst._bbox = bbox
inst._classification = None
assert inst.has_detection() is False
def test_get_classification():
""" Test successfully getting the detection classification element. """
c_elem = mock.MagicMock(spec_set=ClassificationElement)
# Simulate a populated ClassificationElement
c_elem.has_classifications.return_value = True
inst = MemoryDetectionElement(0)
inst._classification = c_elem
assert inst.get_classification() == c_elem
def test_has_detection():
"""
Test that has_detection is true for True-evaluating attributes
"""
inst = MemoryDetectionElement(0)
inst._bbox = mock.MagicMock(spec=AxisAlignedBoundingBox)
# Simulate having a non-empty element.
inst._classification = mock.MagicMock(spec_set=ClassificationElement)
inst._classification.has_classifications.return_value = True
assert inst.has_detection() is True
def test_get_detection():
""" Test successfully getting the detection components. """
bbox = mock.MagicMock(spec_set=AxisAlignedBoundingBox)
c_elem = mock.MagicMock(spec_set=ClassificationElement)
# Simulate a populated ClassificationElement
c_elem.has_classifications.return_value = True
inst = MemoryDetectionElement(0)
inst._bbox = bbox
inst._classification = c_elem
assert inst.get_detection() == (bbox, c_elem)
def test_get_classification_empty_classification():
""" Test attempting to get the classification element when it is empty. """
c_elem = mock.MagicMock(spec_set=ClassificationElement)
# Simulate an empty ClassificationElement
c_elem.has_classifications.return_value = False
inst = MemoryDetectionElement(0)
inst._classification = c_elem
with pytest.raises(NoDetectionError,
match="Missing or empty classification for in-memory "
"detection with UUID 0"):
inst.get_classification()
def test_has_detection_empty_classification_element():
"""
Test that when one or both attributes are false-evaluating but not None,
has_detection returns false.
"""
bbox = mock.MagicMock(spec_set=AxisAlignedBoundingBox)
celem = mock.MagicMock(spec_set=ClassificationElement)
celem.has_classifications.return_value = False
inst = MemoryDetectionElement(0)
inst._bbox = bbox
inst._classification = celem
assert inst.has_detection() is False
def test_get_detection_error_empty_classification():
"""
Test that NoDetectionError is raised when the classification element is
false-evaluating.
"""
bbox = mock.MagicMock(spec_set=AxisAlignedBoundingBox)
celem = mock.MagicMock(spec_set=ClassificationElement)
celem.has_classifications.return_value = False
inst = MemoryDetectionElement(0)
inst._bbox = bbox
inst._classification = celem
with pytest.raises(NoDetectionError,
match="Missing detection bounding box or "
"missing/invalid classification for in-memory "
"detection with UUID 0"):
inst.get_detection()