diff --git a/src/core/space_heat_demand/zone.rs b/src/core/space_heat_demand/zone.rs
index c3d5c9c..7b79a96 100644
--- a/src/core/space_heat_demand/zone.rs
+++ b/src/core/space_heat_demand/zone.rs
@@ -7,9 +7,7 @@ use crate::core::space_heat_demand::thermal_bridge::{
     heat_transfer_coefficient_for_thermal_bridge, ThermalBridging,
 };
 use crate::core::space_heat_demand::ventilation_element::{
-    temp_supply_for_window_opening,
-    VentilationElement,
-    WindowOpeningForCooling,
+    temp_supply_for_window_opening, VentilationElement, WindowOpeningForCooling,
 };
 use crate::core::units::{kelvin_to_celsius, SECONDS_PER_HOUR, WATTS_PER_KILOWATT};
 use crate::external_conditions::ExternalConditions;
@@ -1202,6 +1200,7 @@ struct HeatBalance {
 mod test {
     use super::*;
     use crate::core::space_heat_demand::thermal_bridge::ThermalBridge;
+    use crate::core::space_heat_demand::ventilation_element::VentilationElementInfiltration;
     use crate::core::units::DAYS_IN_MONTH;
     use crate::external_conditions::DaylightSavingsConfig;
     use crate::input::{
diff --git a/src/external_conditions.rs b/src/external_conditions.rs
index 67bd3bc..7a28098 100644
--- a/src/external_conditions.rs
+++ b/src/external_conditions.rs
@@ -1,7 +1,4 @@
-
-use crate::simulation_time::{
-    SimulationTimeIterator, HOURS_IN_DAY,
-};
+use crate::simulation_time::{SimulationTimeIterator, HOURS_IN_DAY};
 use itertools::Itertools;
 use serde::Deserialize;
 
@@ -980,10 +977,7 @@ impl ExternalConditions {
         }
 
         // following is finding the max value of fdiff_list
-        *fdiff_list
-            .iter()
-            .max_by(|a, b| a.total_cmp(b))
-            .unwrap()
+        *fdiff_list.iter().max_by(|a, b| a.total_cmp(b)).unwrap()
     }
 
     // commenting out for now as uses broken method direct_shading_reduction_factor
@@ -1470,6 +1464,7 @@ fn init_dimensionless_sky_brightness_parameter(
 #[cfg(test)]
 mod test {
     use super::*;
+    use crate::core::units::DAYS_IN_MONTH;
     use crate::external_conditions::DaylightSavingsConfig::NotApplicable;
     use crate::simulation_time::{SimulationTime, HOURS_IN_DAY};
     use rstest::*;