samples/basic/rgb_led/sample.yaml

sample:
  name: RGB LED
tests:
  sample.rgb_led:
    filter: DT_ALIAS_RED_PWM_LED_PWMS_CONTROLLER and
            DT_ALIAS_GREEN_PWM_LED_PWMS_CONTROLLER and
            DT_ALIAS_BLUE_PWM_LED_PWMS_CONTROLLER
    tags: drivers pwm
    depends_on: pwm
    harness: led