### Question:
URLConfigSource extends AbstractConfigSource { @Override public Reader getReader() throws IOException { return location.getReader(); } URLConfigSource(final URL url);   URLConfigSource(final URLLocation location); @Override Reader getReader(); @Override VisitableLocation getLocation();  }### Answer:
@Test public void testGetReader() throws IOException { final Reader reader = source.getReader(); assertNotNull(reader); assertTrue((reader instanceof InputStreamReader)); }