def test_list(self):
# same length
self.assertEqual(distance_metric(self.list_a, self.list_b), 4.4)
# different length
self.assertEqual(distance_metric(self.list_b, self.list_c), 1.0)
# sanity check, same objects
self.assertEqual(distance_metric(self.list_b, self.list_b), 0.0)
def test_array(self):
# same length
self.assertEqual(
distance_metric(np.array(self.list_a), np.array(self.list_b)), 4.4)
# different length
self.assertEqual(
distance_metric(
np.array(self.list_b).reshape(1, 3), np.array(self.list_c)),
1.0,
)
# sanity check, same objects
self.assertEqual(
distance_metric(np.array(self.list_b), np.array(self.list_b)), 0.0)
def test_hark_object_distance(self):
self.obj_a.distance_criteria = ["var_1", "var_2", "var_3"]
self.obj_b.distance_criteria = ["var_1", "var_2", "var_3"]
self.obj_c.distance_criteria = ["var_5"]
# if attributes don't exist or don't match
self.assertEqual(distance_metric(self.obj_a, self.obj_b), 1000.0)
self.assertEqual(distance_metric(self.obj_a, self.obj_c), 1000.0)
# add single numbers to attributes
self.obj_a.var_1, self.obj_a.var_2, self.obj_a.var_3 = 0.1, 1, 2.1
self.obj_b.var_1, self.obj_b.var_2, self.obj_b.var_3 = 1.8, -1, 0.1
self.assertEqual(distance_metric(self.obj_a, self.obj_b), 2.0)
# sanity check - same objects
self.assertEqual(distance_metric(self.obj_a, self.obj_a), 0.0)