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
new file mode 100644
index 0000000000..0fb932494d
--- /dev/null
+++ b/tests/unit_tests/fixtures/core/config/area_id_hash_collision.yaml
@@ -0,0 +1,10 @@
+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_id_collision.yaml b/tests/unit_tests/fixtures/core/config/device_id_collision.yaml
new file mode 100644
index 0000000000..a34454fc26
--- /dev/null
+++ b/tests/unit_tests/fixtures/core/config/device_id_collision.yaml
@@ -0,0 +1,10 @@
+esphome:
+  name: test
+  devices:
+    - id: test_2258
+      name: "Device 1"
+    - id: d6ka
+      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
new file mode 100644
index 0000000000..e27976cbbc
--- /dev/null
+++ b/tests/unit_tests/fixtures/core/config/device_invalid_area.yaml
@@ -0,0 +1,12 @@
+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