diff --git a/tests/test_refrigerator.py b/tests/test_refrigerator.py
index 27f3d65..297e6d8 100644
--- a/tests/test_refrigerator.py
+++ b/tests/test_refrigerator.py
@@ -35,7 +35,7 @@ async def test_attributes(
 
     await refrigerator.connect()
     assert refrigerator.get_online() is False
-    assert refrigerator.get_current_temp(True) == '0'
+    assert refrigerator.get_current_temp(True) == "0"
     assert refrigerator.get_turbo_mode() is False
     assert refrigerator.get_display_lock() is False
     await refrigerator.disconnect()
@@ -48,20 +48,20 @@ async def test_attributes(
     assert refrigerator.get_online() is True
     assert refrigerator.get_turbo_mode() is True
     assert refrigerator.get_display_lock() is True
-    assert refrigerator.get_current_temp(True) == '5'
+    assert refrigerator.get_current_temp(True) == "5"
     await refrigerator.disconnect()
 
 
 @pytest.mark.parametrize(
     ["method", "argument", "expected_json"],
     [
-        (Refrigerator.set_temp, -4, {'Refrigerator_OpSetTempPreset': '12'}),
-        (Refrigerator.set_temp, -2, {'Refrigerator_OpSetTempPreset': '11'}),
-        (Refrigerator.set_temp, 0, {'Refrigerator_OpSetTempPreset': '10'}),
-        (Refrigerator.set_temp, 3, {'Refrigerator_OpSetTempPreset': '9'}),
-        (Refrigerator.set_temp, 5, {'Refrigerator_OpSetTempPreset': '8'}),
-        (Refrigerator.set_turbo_mode, True, {'Sys_OpSetMaxCool': '1'}),
-        (Refrigerator.set_turbo_mode, False, {'Sys_OpSetMaxCool': '0'}),
+        (Refrigerator.set_temp, -4, {"Refrigerator_OpSetTempPreset": "12"}),
+        (Refrigerator.set_temp, -2, {"Refrigerator_OpSetTempPreset": "11"}),
+        (Refrigerator.set_temp, 0, {"Refrigerator_OpSetTempPreset": "10"}),
+        (Refrigerator.set_temp, 3, {"Refrigerator_OpSetTempPreset": "9"}),
+        (Refrigerator.set_temp, 5, {"Refrigerator_OpSetTempPreset": "8"}),
+        (Refrigerator.set_turbo_mode, True, {"Sys_OpSetMaxCool": "1"}),
+        (Refrigerator.set_turbo_mode, False, {"Sys_OpSetMaxCool": "0"}),
         (Refrigerator.set_display_lock, True, {"Sys_OpSetControlLock": "1"}),
         (Refrigerator.set_display_lock, False, {"Sys_OpSetControlLock": "0"}),
     ],