### Question:
App { public String getGreeting() { return "[DOWNLOADER] Welcome to web downloader.\n Type \"help\" for a list of commands available."; }  static void main(String[] args); String getGreeting();  }### Answer:
@Test public void testAppHasAGreeting() { App classUnderTest = new App(); assertNotNull("app should have a greeting", classUnderTest.getGreeting()); }