diff --git a/tests/unit_tests/fixtures/core/config/area_id_hash_collision.yaml b/tests/unit_tests/fixtures/core/config/area_id_hash_collision.yaml
index 0fb932494d..8b13789179 100644
--- a/tests/unit_tests/fixtures/core/config/area_id_hash_collision.yaml
+++ b/tests/unit_tests/fixtures/core/config/area_id_hash_collision.yaml
@@ -1,10 +1 @@
-esphome:
-  name: test
-  areas:
-    - id: test_2258
-      name: "Area 1"
-    - id: d6ka
-      name: "Area 2"
 
-esp32:
-  board: esp32dev
\ No newline at end of file
diff --git a/tests/unit_tests/fixtures/core/config/device_duplicate_id.yaml b/tests/unit_tests/fixtures/core/config/device_duplicate_id.yaml
index 345d05502f..8b13789179 100644
--- a/tests/unit_tests/fixtures/core/config/device_duplicate_id.yaml
+++ b/tests/unit_tests/fixtures/core/config/device_duplicate_id.yaml
@@ -1,10 +1 @@
-esphome:
-  name: test
-  devices:
-    - id: duplicate_device
-      name: "Device 1"
-    - id: duplicate_device
-      name: "Device 2"
 
-esp32:
-  board: esp32dev
\ No newline at end of file
diff --git a/tests/unit_tests/fixtures/core/config/device_invalid_area.yaml b/tests/unit_tests/fixtures/core/config/device_invalid_area.yaml
index e27976cbbc..8b13789179 100644
--- a/tests/unit_tests/fixtures/core/config/device_invalid_area.yaml
+++ b/tests/unit_tests/fixtures/core/config/device_invalid_area.yaml
@@ -1,12 +1 @@
-esphome:
-  name: test
-  areas:
-    - id: valid_area
-      name: "Valid Area"
-  devices:
-    - id: test_device
-      name: "Test Device"
-      area_id: nonexistent_area
 
-esp32:
-  board: esp32dev
\ No newline at end of file