Initie des tests unitaires de calcul des strates

tests/computing/test_calculate_impact_strates.py

+from typing import List
+import pytest
+
+from leximpact_dotations_back.dotations_types import Dotation
+from leximpact_dotations_back.main_types import StrateImpact
+from leximpact_dotations_back.preload import configuration, MODEL_OFDL_BASE
+from leximpact_dotations_back.computing.calculate_impact_strates import format_strates_impact, init_strates_demographiques
+from leximpact_dotations_back.computing.dotations_simulation import DotationsSimulation
+from leximpact_dotations_back.computing.strate_demographique import StrateDemographique
+
+
+@pytest.fixture
+def dotation_simulation() -> DotationsSimulation:
+    dotations_simulation_base_2024 = DotationsSimulation(
+        data_directory=configuration['data_directory'],
+        model=MODEL_OFDL_BASE,
+        annee=2024
+        )
+    
+    return dotations_simulation_base_2024
+
+
+@pytest.fixture
+def strates_demographiques(dotation_simulation) -> List[StrateDemographique]:
+    strates_year_period = dotation_simulation.model.parameters(2024).population.groupes_demographiques
+    strates_demographiques_2024_base = init_strates_demographiques(dotation_simulation, strates_year_period)
+    return strates_demographiques_2024_base
+
+
+def test_format_strates_impact(dotation_simulation, strates_demographiques):
+    strates_impact: List[StrateImpact] = format_strates_impact(dotation_simulation, strates_demographiques)
+    strate_testee = strates_impact[0]
+
+    assert strate_testee is not None
+    assert strate_testee["tendance"] is None
+    assert strate_testee["dotationsImpacts"] is not None
+
+    # toutes les dotations connues de l'application ont la réforme calculée
+    assert len(strate_testee["dotationsImpacts"]) == len(Dotation), Dotation
+
+    for dotationImpact in strate_testee["dotationsImpacts"]:
+        assert dotationImpact["dotation"] in Dotation
+        assert dotationImpact["dotationMoyenneParHabitant"] is not None