Merge multiple context managers in tests (#48146)

tests/components/emulated_hue/test_init.py

@@ -13,29 +13,30 @@ def test_config_google_home_entity_id_to_number():
     with patch(
         "homeassistant.components.emulated_hue.load_json",
         return_value={"1": "light.test2"},
-    ) as json_loader:
-        with patch("homeassistant.components.emulated_hue.save_json") as json_saver:
-            number = conf.entity_id_to_number("light.test")
-            assert number == "2"
+    ) as json_loader, patch(
+        "homeassistant.components.emulated_hue.save_json"
+    ) as json_saver:
+        number = conf.entity_id_to_number("light.test")
+        assert number == "2"
 
-            assert json_saver.mock_calls[0][1][1] == {
-                "1": "light.test2",
-                "2": "light.test",
-            }
+        assert json_saver.mock_calls[0][1][1] == {
+            "1": "light.test2",
+            "2": "light.test",
+        }
 
-            assert json_saver.call_count == 1
-            assert json_loader.call_count == 1
+        assert json_saver.call_count == 1
+        assert json_loader.call_count == 1
 
-            number = conf.entity_id_to_number("light.test")
-            assert number == "2"
-            assert json_saver.call_count == 1
+        number = conf.entity_id_to_number("light.test")
+        assert number == "2"
+        assert json_saver.call_count == 1
 
-            number = conf.entity_id_to_number("light.test2")
-            assert number == "1"
-            assert json_saver.call_count == 1
+        number = conf.entity_id_to_number("light.test2")
+        assert number == "1"
+        assert json_saver.call_count == 1
 
-            entity_id = conf.number_to_entity_id("1")
-            assert entity_id == "light.test2"
+        entity_id = conf.number_to_entity_id("1")
+        assert entity_id == "light.test2"
 
 
 def test_config_google_home_entity_id_to_number_altered():
@@ -47,28 +48,29 @@ def test_config_google_home_entity_id_to_number_altered():
     with patch(
         "homeassistant.components.emulated_hue.load_json",
         return_value={"21": "light.test2"},
-    ) as json_loader:
-        with patch("homeassistant.components.emulated_hue.save_json") as json_saver:
-            number = conf.entity_id_to_number("light.test")
-            assert number == "22"
-            assert json_saver.call_count == 1
-            assert json_loader.call_count == 1
+    ) as json_loader, patch(
+        "homeassistant.components.emulated_hue.save_json"
+    ) as json_saver:
+        number = conf.entity_id_to_number("light.test")
+        assert number == "22"
+        assert json_saver.call_count == 1
+        assert json_loader.call_count == 1
 
-            assert json_saver.mock_calls[0][1][1] == {
-                "21": "light.test2",
-                "22": "light.test",
-            }
+        assert json_saver.mock_calls[0][1][1] == {
+            "21": "light.test2",
+            "22": "light.test",
+        }
 
-            number = conf.entity_id_to_number("light.test")
-            assert number == "22"
-            assert json_saver.call_count == 1
+        number = conf.entity_id_to_number("light.test")
+        assert number == "22"
+        assert json_saver.call_count == 1
 
-            number = conf.entity_id_to_number("light.test2")
-            assert number == "21"
-            assert json_saver.call_count == 1
+        number = conf.entity_id_to_number("light.test2")
+        assert number == "21"
+        assert json_saver.call_count == 1
 
-            entity_id = conf.number_to_entity_id("21")
-            assert entity_id == "light.test2"
+        entity_id = conf.number_to_entity_id("21")
+        assert entity_id == "light.test2"
 
 
 def test_config_google_home_entity_id_to_number_empty():
@@ -79,25 +81,26 @@ def test_config_google_home_entity_id_to_number_empty():
 
     with patch(
         "homeassistant.components.emulated_hue.load_json", return_value={}
-    ) as json_loader:
-        with patch("homeassistant.components.emulated_hue.save_json") as json_saver:
-            number = conf.entity_id_to_number("light.test")
-            assert number == "1"
-            assert json_saver.call_count == 1
-            assert json_loader.call_count == 1
+    ) as json_loader, patch(
+        "homeassistant.components.emulated_hue.save_json"
+    ) as json_saver:
+        number = conf.entity_id_to_number("light.test")
+        assert number == "1"
+        assert json_saver.call_count == 1
+        assert json_loader.call_count == 1
 
-            assert json_saver.mock_calls[0][1][1] == {"1": "light.test"}
+        assert json_saver.mock_calls[0][1][1] == {"1": "light.test"}
 
-            number = conf.entity_id_to_number("light.test")
-            assert number == "1"
-            assert json_saver.call_count == 1
+        number = conf.entity_id_to_number("light.test")
+        assert number == "1"
+        assert json_saver.call_count == 1
 
-            number = conf.entity_id_to_number("light.test2")
-            assert number == "2"
-            assert json_saver.call_count == 2
+        number = conf.entity_id_to_number("light.test2")
+        assert number == "2"
+        assert json_saver.call_count == 2
 
-            entity_id = conf.number_to_entity_id("2")
-            assert entity_id == "light.test2"
+        entity_id = conf.number_to_entity_id("2")
+        assert entity_id == "light.test2"
 
 
 def test_config_alexa_entity_id_to_number():