@Test
public void processNewLineUsesQuestionMarkForUnknownClientIds() {

  myReceiver.processNewLine("[ 1516739696.789 99:99 V/UnknownClient     ]");
  myReceiver.processNewLine("Dummy Message");
  String expected = "2018-01-23 12:34:56.789 99-99/? V/UnknownClient: Dummy Message\n";
  assertThat(myLogcatListener.toString()).isEqualTo(expected);
}