samples/basic/rgb_led/sample.yaml

sample:
  name: RGB LED
tests:
  sample.rgb_led:
    filter: dt_alias_exists("red-pwm-led") and
            dt_alias_exists("green-pwm-led") and
            dt_alias_exists("blue-pwm-led")
    tags: drivers pwm
    depends_on: pwm
    harness: led