YAML linting (#3779)

.editorconfig

@@ -25,10 +25,9 @@ indent_size = 2
 [*.{yaml,yml}]
 indent_style = space
 indent_size = 2
-quote_type = single
+quote_type = double
 
 # JSON
 [*.json]
 indent_style = space
 indent_size = 2
-

.github/FUNDING.yml

@@ -1,3 +1,4 @@
+---
 # These are supported funding model platforms
 
 custom: https://www.nabucasa.com

.github/ISSUE_TEMPLATE/config.yml

@@ -1,3 +1,4 @@
+---
 blank_issues_enabled: false
 contact_links:
   - name: Issue Tracker
@@ -5,7 +6,10 @@ contact_links:
     about: Please create bug reports in the dedicated issue tracker.
   - name: Feature Request Tracker
     url: https://github.com/esphome/feature-requests
-    about: Please create feature requests in the dedicated feature request tracker.
+    about: |
+      Please create feature requests in the dedicated feature request tracker.
   - name: Frequently Asked Question
     url: https://esphome.io/guides/faq.html
-    about: Please view the FAQ for common questions and what to include in a bug report.
+    about: |
+      Please view the FAQ for common questions and what
+      to include in a bug report.

.github/dependabot.yml

@@ -1,13 +1,14 @@
+---
 version: 2
 updates:
-  - package-ecosystem: "pip"
+  - package-ecosystem: pip
     directory: "/"
     schedule:
-      interval: "daily"
+      interval: daily
     ignore:
       # Hypotehsis is only used for testing and is updated quite often
       - dependency-name: hypothesis
-  - package-ecosystem: "github-actions"
+  - package-ecosystem: github-actions
     directory: "/"
     schedule:
       interval: daily

.github/workflows/ci-docker.yml

@@ -1,21 +1,23 @@
+---
 name: CI for docker images
 
 # Only run when docker paths change
+# yamllint disable-line rule:truthy
 on:
   push:
     branches: [dev, beta, release]
     paths:
-      - 'docker/**'
+      - "docker/**"
-      - '.github/workflows/**'
+      - ".github/workflows/**"
-      - 'requirements*.txt'
+      - "requirements*.txt"
-      - 'platformio.ini'
+      - "platformio.ini"
 
   pull_request:
     paths:
-      - 'docker/**'
+      - "docker/**"
-      - '.github/workflows/**'
+      - ".github/workflows/**"
-      - 'requirements*.txt'
+      - "requirements*.txt"
-      - 'platformio.ini'
+      - "platformio.ini"
 
 permissions:
   contents: read
@@ -34,7 +36,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-        python-version: '3.9'
+          python-version: "3.9"
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
       - name: Set up QEMU

.github/workflows/ci.yml

@@ -1,5 +1,7 @@
+---
 name: CI
 
+# yamllint disable-line rule:truthy
 on:
   push:
     branches: [dev, beta, release]
@@ -10,6 +12,7 @@ permissions:
   contents: read
 
 concurrency:
+  # yamllint disable-line rule:line-length
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
@@ -73,6 +76,8 @@ jobs:
             name: Run script/clang-tidy for ESP32 IDF
             options: --environment esp32-idf-tidy --grep USE_ESP_IDF
             pio_cache_key: tidyesp32-idf
+          - id: yamllint
+            name: Run yamllint
 
     steps:
       - uses: actions/checkout@v3
@@ -80,17 +85,19 @@ jobs:
         uses: actions/setup-python@v4
         id: python
         with:
-          python-version: '3.8'
+          python-version: "3.8"
 
       - name: Cache virtualenv
         uses: actions/cache@v3
         with:
           path: .venv
+          # yamllint disable-line rule:line-length
           key: venv-${{ steps.python.outputs.python-version }}-${{ hashFiles('requirements*.txt') }}
           restore-keys: |
             venv-${{ steps.python.outputs.python-version }}-
 
       - name: Set up virtualenv
+        # yamllint disable rule:line-length
         run: |
           python -m venv .venv
           source .venv/bin/activate
@@ -99,12 +106,14 @@ jobs:
           pip install -e .
           echo "$GITHUB_WORKSPACE/.venv/bin" >> $GITHUB_PATH
           echo "VIRTUAL_ENV=$GITHUB_WORKSPACE/.venv" >> $GITHUB_ENV
+        # yamllint enable rule:line-length
 
       # Use per check platformio cache because checks use different parts
       - name: Cache platformio
         uses: actions/cache@v3
         with:
           path: ~/.platformio
+          # yamllint disable-line rule:line-length
           key: platformio-${{ matrix.pio_cache_key }}-${{ hashFiles('platformio.ini') }}
         if: matrix.id == 'test' || matrix.id == 'clang-tidy'
 
@@ -145,8 +154,9 @@ jobs:
           pytest -vv --tb=native tests
         if: matrix.id == 'pytest'
 
-      # Also run git-diff-index so that the step is marked as failed on formatting errors,
+      # Also run git-diff-index so that the step is marked as failed on
-      # since clang-format doesn't do anything but change files if -i is passed.
+      # formatting errors, since clang-format doesn't do anything but
+      # change files if -i is passed.
       - name: Run clang-format
         run: |
           script/clang-format -i
@@ -161,6 +171,11 @@ jobs:
           # Also cache libdeps, store them in a ~/.platformio subfolder
           PLATFORMIO_LIBDEPS_DIR: ~/.platformio/libdeps
 
+      - name: Run yamllint
+        if: matrix.id == 'yamllint'
+        uses: frenck/action-yamllint@v1.2.0
+
       - name: Suggested changes
         run: script/ci-suggest-changes
+        # yamllint disable-line rule:line-length
         if: always() && (matrix.id == 'clang-tidy' || matrix.id == 'clang-format' || matrix.id == 'lint-python')

.github/workflows/lock.yml

@@ -1,8 +1,10 @@
+---
 name: Lock
 
+# yamllint disable-line rule:truthy
 on:
   schedule:
-    - cron: '30 0 * * *'
+    - cron: "30 0 * * *"
   workflow_dispatch:
 
 permissions:

.github/workflows/release.yml

@@ -1,5 +1,7 @@
+---
 name: Publish Release
 
+# yamllint disable-line rule:truthy
 on:
   workflow_dispatch:
   release:
@@ -20,6 +22,7 @@ jobs:
       - uses: actions/checkout@v3
       - name: Get tag
         id: tag
+        # yamllint disable rule:line-length
         run: |
           if [[ "$GITHUB_EVENT_NAME" = "release" ]]; then
             TAG="${GITHUB_REF#refs/tags/}"
@@ -29,6 +32,7 @@ jobs:
             TAG="${TAG}${today}"
           fi
           echo "::set-output name=tag::${TAG}"
+        # yamllint enable rule:line-length
 
   deploy-pypi:
     name: Build and publish to PyPi
@@ -39,7 +43,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.x'
+          python-version: "3.x"
       - name: Set up python environment
         run: |
           script/setup
@@ -69,7 +73,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-        python-version: '3.9'
+          python-version: "3.9"
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
@@ -112,7 +116,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-        python-version: '3.9'
+          python-version: "3.9"
       - name: Enable experimental manifest support
         run: |
           mkdir -p ~/.docker
@@ -144,6 +148,7 @@ jobs:
     steps:
       - env:
           TOKEN: ${{ secrets.DEPLOY_HA_ADDON_REPO_TOKEN }}
+        # yamllint disable rule:line-length
         run: |
           TAG="${GITHUB_REF#refs/tags/}"
           curl \
@@ -152,3 +157,4 @@ jobs:
             -H "Accept: application/vnd.github.v3+json" \
             https://api.github.com/repos/esphome/home-assistant-addon/actions/workflows/bump-version.yml/dispatches \
             -d "{\"ref\":\"main\",\"inputs\":{\"version\":\"$TAG\"}}"
+        # yamllint enable rule:line-length

.github/workflows/stale.yml

@@ -1,8 +1,10 @@
+---
 name: Stale
 
+# yamllint disable-line rule:truthy
 on:
   schedule:
-    - cron: '30 0 * * *'
+    - cron: "30 0 * * *"
   workflow_dispatch:
 
 permissions:
@@ -31,7 +33,8 @@ jobs:
             and will be closed if no further activity occurs within 7 days.
             Thank you for your contributions.
 
-  # Use stale to automatically close issues with a reference to the issue tracker
+  # Use stale to automatically close issues with a
+  # reference to the issue tracker
   close-issues:
     runs-on: ubuntu-latest
     steps:

.gitpod.yml

@@ -1,6 +1,8 @@
+---
 ports:
   - port: 6052
     onOpen: open-preview
 tasks:
+  # yamllint disable-line rule:line-length
   - before: pyenv local $(pyenv version | grep '^3\.' | cut -d ' ' -f 1) && script/setup
     command: python -m esphome dashboard config

.pre-commit-config.yaml

@@ -1,3 +1,4 @@
+---
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks
 repos:

.yamllint

@@ -0,0 +1,3 @@
+---
+ignore: |
+  venv/

tests/component_tests/binary_sensor/test_binary_sensor.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: test
   platform: ESP8266
@@ -6,13 +7,13 @@ esphome:
 binary_sensor:
   - platform: gpio
     id: bs_1
-    name: "test bs1"
+    name: test bs1
     internal: true
     pin:
       number: D0
   - platform: gpio
     id: bs_2
-    name: "test bs2"
+    name: test bs2
     internal: false
     pin:
       number: D1

tests/component_tests/button/test_button.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: test
   platform: ESP8266

tests/component_tests/deep_sleep/test_deep_sleep1.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: test
   platform: ESP32

tests/component_tests/deep_sleep/test_deep_sleep2.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: test
   platform: ESP32

tests/component_tests/sensor/test_sensor.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: test
   platform: ESP8266
@@ -7,6 +8,6 @@ sensor:
   - platform: adc
     pin: A0
     id: s_1
-    name: "test s1"
+    name: test s1
     update_interval: 60s
-    device_class: "voltage"
+    device_class: voltage

tests/test4.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: $devicename
   platform: ESP32
@@ -25,7 +26,7 @@ api:
 i2c:
   sda: 21
   scl: 22
-  scan: False
+  scan: false
 
 spi:
   clk_pin: GPIO21
@@ -38,7 +39,7 @@ uart:
   baud_rate: 115200
 
 ota:
-  safe_mode: True
+  safe_mode: true
   port: 3286
 
 logger:
@@ -226,22 +227,22 @@ sensor:
     pv_charging_power:
       id: inverter0_pv_charging_power
       name: inverter0_pv_charging_power
-  - platform: "hrxl_maxsonar_wr"
+  - platform: hrxl_maxsonar_wr
-    name: "Rainwater Tank Level"
+    name: Rainwater Tank Level
     filters:
       - sliding_window_moving_average:
           window_size: 12
           send_every: 12
       - or:
-        - throttle: "20min"
+          - throttle: 20min
           - delta: 0.02
   - platform: mcp3204
-    name: "MCP3204 Pin 1"
+    name: MCP3204 Pin 1
     number: 1
     id: mcp_sensor
   - platform: copy
     source_id: mcp_sensor
-    name: "MCP binary sensor copy"
+    name: MCP binary sensor copy
 
 #
 # platform sensor.apds9960 requires component apds9960
@@ -321,7 +322,7 @@ binary_sensor:
       name: inverter0_backlight_on
   - platform: template
     id: ar1
-    lambda: 'return {};'
+    lambda: "return {};"
     filters:
       - autorepeat:
           - delay: 2s
@@ -356,8 +357,7 @@ binary_sensor:
     y_min: 0
     y_max: 100
     on_press:
-      - logger.log: "Touched"
+      - logger.log: Touched
-
 
 climate:
   - platform: tuya
@@ -392,7 +392,7 @@ switch:
 light:
   - platform: fastled_clockless
     id: led_matrix_32x8
-    name: "led_matrix_32x8"
+    name: led_matrix_32x8
     chipset: WS2812B
     pin: GPIO15
     num_leds: 256
@@ -417,7 +417,7 @@ cover:
     position_datapoint: 2
   - platform: copy
     source_id: tuya_cover
-    name: "Tuya Cover copy"
+    name: Tuya Cover copy
 
 display:
   - platform: addressable_light
@@ -516,7 +516,7 @@ text_sensor:
       name: inverter0_last_qflag
   - platform: copy
     source_id: inverter0_device_mode
-    name: "Inverter Text Sensor Copy"
+    name: Inverter Text Sensor Copy
 
 output:
   - platform: pipsolar
@@ -524,37 +524,37 @@ output:
     battery_recharge_voltage:
       id: inverter0_battery_recharge_voltage_out
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 0
-    id: 'dac7678_1_ch0'
+    id: dac7678_1_ch0
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 1
-    id: 'dac7678_1_ch1'
+    id: dac7678_1_ch1
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 2
-    id: 'dac7678_1_ch2'
+    id: dac7678_1_ch2
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 3
-    id: 'dac7678_1_ch3'
+    id: dac7678_1_ch3
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 4
-    id: 'dac7678_1_ch4'
+    id: dac7678_1_ch4
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 5
-    id: 'dac7678_1_ch5'
+    id: dac7678_1_ch5
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 6
-    id: 'dac7678_1_ch6'
+    id: dac7678_1_ch6
   - platform: dac7678
-    dac7678_id: 'dac7678_hub1'
+    dac7678_id: dac7678_hub1
     channel: 7
-    id: 'dac7678_1_ch7'
+    id: dac7678_1_ch7
 esp32_camera:
   name: ESP-32 Camera
   data_pins: [GPIO17, GPIO35, GPIO34, GPIO5, GPIO39, GPIO18, GPIO36, GPIO19]
@@ -581,9 +581,9 @@ esp32_camera_web_server:
 external_components:
   - source: github://esphome/esphome@dev
     refresh: 1d
-    components: ["bh1750"]
+    components: [bh1750]
   - source: ../esphome/components
-    components: ["sntp"]
+    components: [sntp]
 xpt2046:
   id: xpt_touchscreen
   cs_pin: 17
@@ -597,8 +597,9 @@ xpt2046:
   calibration_x_max: 280
   calibration_y_min: 340
   calibration_y_max: 3860
-  swap_x_y: False
+  swap_x_y: false
   on_state:
+    # yamllint disable rule:line-length
     - lambda: |-
         ESP_LOGI("main", "args x=%d, y=%d, touched=%s", x, y, (touched ? "touch" : "release"));
         ESP_LOGI("main", "member x=%d, y=%d, touched=%d, x_raw=%d, y_raw=%d, z_raw=%d",
@@ -609,6 +610,7 @@ xpt2046:
             id(xpt_touchscreen).y_raw,
             id(xpt_touchscreen).z_raw
             );
+    # yamllint enable rule:line-length
 
 button:
   - platform: restart
@@ -622,7 +624,6 @@ button:
     source_id: shutdown_btn
     name: Shutdown Button Copy
 
-
 touchscreen:
   - platform: ektf2232
     interrupt_pin: GPIO36
@@ -631,7 +632,7 @@ touchscreen:
     on_touch:
       - logger.log:
           format: Touch at (%d, %d)
-          args: ["touch.x", "touch.y"]
+          args: [touch.x, touch.y]
 
   - platform: lilygo_t5_47
     id: lilygo_touchscreen
@@ -640,7 +641,7 @@ touchscreen:
     on_touch:
       - logger.log:
           format: Touch at (%d, %d)
-          args: ["touch.x", "touch.y"]
+          args: [touch.x, touch.y]
 
 media_player:
   - platform: i2s_audio
@@ -673,4 +674,4 @@ prometheus:
   relabel:
     ha_hello_world:
       id: hellow_world
-      name: "Hello World"
+      name: Hello World

tests/test5.yaml

@@ -1,3 +1,4 @@
+---
 esphome:
   name: test5
   build_path: build/test5
@@ -60,8 +61,10 @@ mqtt:
     topic: testing/sensor/testing_sensor/state
     qos: 0
     then:
+      # yamllint disable rule:line-length
       - lambda: |-
           ESP_LOGD("Mqtt Test", "testing/sensor/testing_sensor/state=[%s]", x.c_str());
+      # yamllint enable rule:line-length
 
 binary_sensor:
   - platform: gpio
@@ -75,7 +78,7 @@ binary_sensor:
     register_type: read
     address: 0x3200
     bitmask: 0x80  # (bit 8)
-    lambda: !lambda "{ return x ;}"
+    lambda: "return x;"
 
 tlc5947:
   data_pin: GPIO12
@@ -108,8 +111,8 @@ demo:
 esp32_ble:
 
 esp32_ble_server:
-  manufacturer: "ESPHome"
+  manufacturer: ESPHome
-  model: "Test5"
+  model: Test5
 
 esp32_improv:
   authorizer: io0_button
@@ -128,12 +131,12 @@ number:
     mode: slider
     on_value:
       - logger.log:
-          format: "Number changed to %f"
+          format: Number changed to %f
-          args: ["x"]
+          args: [x]
     set_action:
       - logger.log:
-          format: "Template Number set to %f"
+          format: Template Number set to %f
-          args: ["x"]
+          args: [x]
       - number.set:
           id: template_number_id
           value: 50
@@ -163,7 +166,7 @@ number:
   - id: modbus_numbertest
     platform: modbus_controller
     modbus_controller_id: modbus_controller_test
-    name: "ModbusNumber"
+    name: ModbusNumber
     address: 0x9002
     value_type: U_WORD
     lambda: "return  x * 1.0;"
@@ -180,11 +183,11 @@ select:
     restore_value: true
     on_value:
       - logger.log:
-          format: "Select changed to %s (index %d)"
+          format: Select changed to %s (index %d)"
           args: ["x.c_str()", "i"]
     set_action:
       - logger.log:
-          format: "Template Select set to %s"
+          format: Template Select set to %s
           args: ["x.c_str()"]
       - select.set:
           id: template_select_id
@@ -216,7 +219,7 @@ select:
       - three
 
   - platform: modbus_controller
-    name: "Modbus Select Register 1000"
+    name: Modbus Select Register 1000
     address: 1000
     value_type: U_WORD
     optionsmap:
@@ -228,41 +231,41 @@ select:
 sensor:
   - platform: selec_meter
     total_active_energy:
-      name: "SelecEM2M Total Active Energy"
+      name: SelecEM2M Total Active Energy
     import_active_energy:
-      name: "SelecEM2M Import Active Energy"
+      name: SelecEM2M Import Active Energy
     export_active_energy:
-      name: "SelecEM2M Export Active Energy"
+      name: SelecEM2M Export Active Energy
     total_reactive_energy:
-      name: "SelecEM2M Total Reactive Energy"
+      name: SelecEM2M Total Reactive Energy
     import_reactive_energy:
-      name: "SelecEM2M Import Reactive Energy"
+      name: SelecEM2M Import Reactive Energy
     export_reactive_energy:
-      name: "SelecEM2M Export Reactive Energy"
+      name: SelecEM2M Export Reactive Energy
     apparent_energy:
-      name: "SelecEM2M Apparent Energy"
+      name: SelecEM2M Apparent Energy
     active_power:
-      name: "SelecEM2M Active Power"
+      name: SelecEM2M Active Power
     reactive_power:
-      name: "SelecEM2M Reactive Power"
+      name: SelecEM2M Reactive Power
     apparent_power:
-      name: "SelecEM2M Apparent Power"
+      name: SelecEM2M Apparent Power
     voltage:
-      name: "SelecEM2M Voltage"
+      name: SelecEM2M Voltage
     current:
-      name: "SelecEM2M Current"
+      name: SelecEM2M Current
     power_factor:
-      name: "SelecEM2M Power Factor"
+      name: SelecEM2M Power Factor
     frequency:
-      name: "SelecEM2M Frequency"
+      name: SelecEM2M Frequency
     maximum_demand_active_power:
-      name: "SelecEM2M Maximum Demand Active Power"
+      name: SelecEM2M Maximum Demand Active Power
       disabled_by_default: true
     maximum_demand_reactive_power:
-      name: "SelecEM2M Maximum Demand Reactive Power"
+      name: SelecEM2M Maximum Demand Reactive Power
       disabled_by_default: true
     maximum_demand_apparent_power:
-      name: "SelecEM2M Maximum Demand Apparent Power"
+      name: SelecEM2M Maximum Demand Apparent Power
       disabled_by_default: true
 
   - id: modbus_sensortest
@@ -279,41 +282,41 @@ sensor:
 
   - platform: bmp3xx
     temperature:
-      name: "BMP Temperature"
+      name: BMP Temperature
       oversampling: 16x
     pressure:
-      name: "BMP Pressure"
+      name: BMP Pressure
     address: 0x77
     iir_filter: 2X
 
   - platform: sen5x
     id: sen54
     temperature:
-      name: "Temperature"
+      name: Temperature
       accuracy_decimals: 1
     humidity:
-      name: "Humidity"
+      name: Humidity
       accuracy_decimals: 0
     pm_1_0:
-      name: " PM <1µm Weight concentration"
+      name: PM <1µm Weight concentration
       id: pm_1_0
       accuracy_decimals: 1
     pm_2_5:
-      name: " PM <2.5µm Weight concentration"
+      name: PM <2.5µm Weight concentration
       id: pm_2_5
       accuracy_decimals: 1
     pm_4_0:
-      name: " PM <4µm Weight concentration"
+      name: PM <4µm Weight concentration
       id: pm_4_0
       accuracy_decimals: 1
     pm_10_0:
-      name: " PM <10µm Weight concentration"
+      name: PM <10µm Weight concentration
       id: pm_10_0
       accuracy_decimals: 1
     nox:
-      name: "NOx"
+      name: NOx
     voc:
-      name: "VOC"
+      name: VOC
       algorithm_tuning:
         index_offset: 100
         learning_time_offset_hours: 12
@@ -332,9 +335,9 @@ sensor:
   - platform: mcp9600
     thermocouple_type: K
     hot_junction:
-      name: "Thermocouple Temperature"
+      name: Thermocouple Temperature
     cold_junction:
-      name: "Ambient Temperature"
+      name: Ambient Temperature
 
 script:
   - id: automation_test
@@ -342,7 +345,7 @@ script:
       - repeat:
           count: 5
           then:
-            - logger.log: "looping!"
+            - logger.log: looping!
 
 switch:
   - platform: modbus_controller

tests/test_packages/test_packages_package1.yaml

@@ -1,2 +1,3 @@
+---
 sensor:
   - <<: !include ./test_uptime_sensor.yaml

tests/test_packages/test_packages_package_wifi.yaml

@@ -1,4 +1,5 @@
+---
 wifi:
   networks:
-  - ssid: 'WiFiFromPackage'
+    - ssid: "WiFiFromPackage"
-    password: 'password1'
+      password: "password1"

tests/test_packages/test_uptime_sensor.yaml

@@ -1,3 +1,4 @@
+---
 # Uptime sensor.
 platform: uptime
 id: ${devicename}_uptime_pcg

tests/unit_tests/fixtures/yaml_util/includes/scalar.yaml

@@ -1 +1,2 @@
+---
 ${var1}

tests/unit_tests/fixtures/yaml_util/includetest.yaml

@@ -8,7 +8,8 @@ wifi: !include
     name: my_custom_ssid
 
 esphome:
-  # should be substituted as 'original', not overwritten by vars in the !include above
+  # should be substituted as 'original',
+  # not overwritten by vars in the !include above
   name: ${name}
   name_add_mac_suffix: true
   platform: esp8266