def test_find_old_classifier_none(self, cfg):
# given
classifier_list = ClassifiersList(cfg=cfg)
cl = Classifier(cfg=cfg)
# when
old_cl = classifier_list.find_old_classifier(cl)
assert old_cl is None
def test_find_old_classifier_only_subsumer(self, cfg):
# given
subsumer1 = Classifier(condition='1##0####',
action=3,
effect='##1#####',
quality=0.93,
reward=1.35,
experience=23,
cfg=cfg)
subsumer2 = Classifier(condition='#1#0####',
action=3,
effect='##1#####',
quality=0.93,
reward=1.35,
experience=23,
cfg=cfg)
most_general = Classifier(condition='###0####',
action=3,
effect='##1#####',
quality=0.93,
reward=1.35,
experience=23,
cfg=cfg)
nonsubsumer = Classifier(cfg=cfg)
classifier = Classifier(condition='11#0####',
action=3,
effect='##1#####',
quality=0.5,
reward=0.35,
experience=1,
cfg=cfg)
classifiers_list = ClassifiersList(*[
nonsubsumer, subsumer1, nonsubsumer, most_general, subsumer2,
nonsubsumer
],
cfg=cfg)
# when
actual_old_classifier = classifiers_list.find_old_classifier(
classifier)
# then
assert most_general == actual_old_classifier
def test_find_old_classifier_only_similar(self, cfg):
# given
classifier_1 = Classifier(action=1, experience=32, cfg=cfg)
classifier_2 = Classifier(action=1, cfg=cfg)
classifiers = ClassifiersList(*[
classifier_1,
Classifier(action=2, cfg=cfg),
Classifier(action=3, cfg=cfg), classifier_2
],
cfg=cfg)
# when
actual_old_classifier = classifiers.find_old_classifier(
Classifier(action=1, cfg=cfg))
# then
assert classifier_1 == actual_old_classifier
def test_find_old_classifier_similar_and_subsumer_subsumer_returned(
self, cfg):
# given
subsumer = Classifier(condition='1#######',
action=1,
experience=21,
quality=0.95,
cfg=cfg)
similar = Classifier(condition='10######', action=1, cfg=cfg)
existing_classifiers = ClassifiersList(*[similar, subsumer], cfg=cfg)
classifier = Classifier(condition='10######', action=1, cfg=cfg)
# when
old_cls = existing_classifiers.find_old_classifier(classifier)
# then
assert subsumer.does_subsume(classifier) is True
assert similar == classifier
assert subsumer == old_cls
