Revert "Fix default arguments = [] change to None"

This reverts commit 9edf5c7.

decoimpact/business/entities/rules/multiply_rule.py

@@ -12,7 +12,7 @@
 """
 
 from datetime import datetime as _dt
-from typing import List, Optional
+from typing import List
 
 import numpy as _np
 import xarray as _xr
@@ -31,7 +31,7 @@ def __init__(
         input_variable_names: List[str],
         multipliers: List[List[float]],
         output_variable_name: str = "output",
-        date_range: Optional[List[List[str]]] = None,
+        date_range: List[List[str]] = [],
         description: str = "",
     ):
         super().__init__(name, input_variable_names, output_variable_name, description)
@@ -44,7 +44,7 @@ def multipliers(self) -> List[List[float]]:
         return self._multipliers
 
     @property
-    def date_range(self) -> Optional[List[List[str]]]:
+    def date_range(self) -> List[List[str]]:
         """Date range property"""
         return self._date_range
 
@@ -64,7 +64,7 @@ def execute(self, value_array: _xr.DataArray, logger: ILogger) -> _xr.DataArray:
         old_dr = _xr.DataArray(value_array)
         new_dr = _xr.full_like(old_dr, _np.nan)
         for (index, _mp) in enumerate(result_multipliers):
-            if self.date_range is not None:
+            if len(self.date_range) != 0:
                 # Date is given in DD-MM, convert to MM-DD for comparison
                 start = self._convert_datestr(self.date_range[index][0])
                 end = self._convert_datestr(self.date_range[index][1])

decoimpact/data/entities/multiply_rule_data.py

@@ -12,7 +12,7 @@
 
 """
 
-from typing import List, Optional
+from typing import List
 
 from decoimpact.data.api.i_multiply_rule_data import IMultiplyRuleData
 from decoimpact.data.entities.rule_data import RuleData
@@ -28,7 +28,7 @@ def __init__(
         input_variable: str,
         output_variable: str = "output",
         description: str = "",
-        date_range: Optional[List[List[str]]] = None,
+        date_range: List[List[str]] = [],
     ):
         super().__init__(name, output_variable, description)
         self._input_variable = input_variable

tests/business/entities/rules/test_multiply_rule.py

@@ -11,8 +11,8 @@
 
 from unittest.mock import Mock
 
-import numpy as _np
 import xarray as _xr
+import numpy as _np
 
 from decoimpact.business.entities.rules.multiply_rule import MultiplyRule
 from decoimpact.crosscutting.i_logger import ILogger
@@ -29,7 +29,7 @@ def test_create_multiply_rule_should_set_defaults():
     assert rule.input_variable_names == ["foo"]
     assert rule.output_variable_name == "output"
     assert rule.multipliers == [[0.5, 3.0]]
-    assert rule.date_range == None
+    assert rule.date_range == []
     assert isinstance(rule, MultiplyRule)