zephyr/samples/subsys/usb/cdc_acm_composite/sample.yaml

sample:
  name: CDC ACM Composite USB
tests:
  sample.usb.cdc-acm-composite:
    depends_on: usb_device gpio
    tags: usb
    harness: console
    harness_config:
      type: one_line
      regex:
        - "Wait for DTR"