Merge branch 'multi_device' into integration

tests/components/esphome/common.yaml

@@ -2,7 +2,9 @@ esphome:
   debug_scheduler: true
   platformio_options:
     board_build.flash_mode: dio
-  area: testing
+  area:
+    id: testing_area
+    name: Testing Area
   on_boot:
     logger.log: on_boot
   on_shutdown:
@@ -17,4 +19,20 @@ esphome:
     version: "1.1"
     on_update:
       logger.log: on_update
+  areas:
+    - id: another_area
+      name: Another area
+  devices:
+    - id: other_device
+      name: Another device
+      area_id: another_area
+    - id: test_device
+      name: Test device in main area
+      area_id: testing_area  # Reference the main area (not in areas)
+    - id: no_area_device
+      name: Device without area  # This device has no area_id
 
+binary_sensor:
+  - platform: template
+    name: Other device sensor
+    device_id: other_device