[fix] changed leftover np.random to global rng. Added global rng logic to test_mutation.py

Author: kabarmaz

WeatherRoutingTool/algorithms/genetic/mutation.py

@@ -247,10 +247,10 @@ def variable_plateau_size(self, route_length) -> bool:
         if route_length < 9:
             return False
 
-        plateau_length = np.random.randint(7, np.floor(0.9 * route_length))
+        plateau_length = int(self.rng.integers(7, np.floor(0.9 * route_length)))
         if plateau_length % 2 != 1:
             plateau_length = plateau_length - 1
-        self.plateau_size = np.random.randint(2, plateau_length - 4)
+        self.plateau_size = int(self.rng.integers(2, plateau_length - 4))
         if self.plateau_size % 2 != 1:
             self.plateau_size += 1
         self.plateau_slope = (plateau_length + 2 - self.plateau_size) / 2

tests/test_mutation.py

@@ -23,11 +23,11 @@ def test_variable_plateau_size(route_length):
     dirname = os.path.dirname(__file__)
     configpath = os.path.join(dirname, 'config.isofuel_single_route.json')
     config = Config.assign_config(Path(configpath))
+    config.GENETIC_RANDOM_SEED = 1
     constraint_list = basic_test_func.generate_dummy_constraint_list()
 
     mt = RandomPlateauMutation(config=config, constraints_list=constraint_list)
 
-    np.random.seed(1)
     for _ in range(100):
         mt.variable_plateau_size(route_length)