Coverage for moptipy / operators / bitstrings / op0_random.py: 100%

1"""A nullary operator filling a bit string with random values.""" 

2 

3 

4import numpy as np 

5from numpy.random import Generator 

6 

7from moptipy.api.operators import Op0 

8 

9 

10class Op0Random(Op0): 

11 """Fill a bit string with random values.""" 

12 

13 def op0(self, random: Generator, dest: np.ndarray) -> None: 

14 """ 

15 Fill the string `dest` with random values. 

16 

17 :param random: the random number generator 

18 :param dest: the bit string to fill. Afterwards, its contents will 

19 be random. 

20 """ 

21 np.copyto(dest, random.integers(0, 2, dest.shape, dest.dtype)) 

22 

23 def __str__(self) -> str: 

24 """ 

25 Get the name of this operator. 

26 

27 :return: "randomize" 

28 """ 

29 return "randomize"