def test_init(self):
''' Make sure the individual can be initialized correctly.
'''
indv = BinaryIndividual(ranges=[(0, 1)], eps=0.001)
# Check chromsome initialization.
indv.init(chromsome=[0, 1, 1, 0, 0, 0, 1, 1, 1, 0])
self.assertListEqual([0, 1, 1, 0, 0, 0, 1, 1, 1, 0], indv.chromsome)
self.assertListEqual(indv.solution, [0.388671875])
# Check solution initialization.
indv.init(solution=[0.398])
self.assertListEqual(indv.solution, [0.398])
self.assertListEqual(indv.chromsome, [0, 1, 1, 0, 0, 1, 0, 1, 1])
def test_binary_encoding(self):
''' Make sure individual can decode and encode binary gene correctly.
'''
indv = BinaryIndividual(ranges=[(0, 1)], eps=0.001)
indv.init(solution=[0.398])
# Test binary chromsome.
ref_chromsome = [0, 1, 1, 0, 0, 1, 0, 1, 1]
self.assertListEqual(indv.chromsome, ref_chromsome)
# Test decode.
self.assertListEqual(indv.decode(), [0.396484375])
indv = BinaryIndividual(ranges=[(0, 1), (-1, 1)], eps=0.001)
indv.init(solution=[0.398, 0.66])
# Test binary chromsome.
ref_chromsome = [
0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1
]
self.assertListEqual(indv.chromsome, ref_chromsome)
# Test decode.
self.assertListEqual(indv.decode(), [0.396484375, 0.658203125])