feat(observatoire): squelette de dashboard_filters_to_sql (#72)

tests/test_dashboard_filters_to_sql.py

@@ -0,0 +1,18 @@
+from datetime import datetime, timedelta
+
+from src.utils.table_sql import dashboard_filters_to_sql
+
+
+def test_no_filters_uses_default_365_day_window():
+    where_sql, params = dashboard_filters_to_sql()
+    assert where_sql == '"dateNotification" > ?'
+    assert len(params) == 1
+    assert isinstance(params[0], datetime)
+    expected = datetime.now() - timedelta(days=365)
+    assert abs((params[0] - expected).total_seconds()) < 2
+
+
+def test_year_filter_overrides_default_window():
+    where_sql, params = dashboard_filters_to_sql(dashboard_year="2025")
+    assert where_sql == 'YEAR("dateNotification") = ?'
+    assert params == [2025]