### Question:
Pcap4jPropertiesLoader { public Integer getDltRaw() { return loader.getInteger(DLT_RAW_KEY, getDefaultDltRaw()); } private  Pcap4jPropertiesLoader(); static Pcap4jPropertiesLoader getInstance(); Integer getAfInet(); Integer getAfInet6(); Integer getAfPacket(); Integer getAfLink(); Integer getDltRaw(); static final String PCAP4J_PROPERTIES_PATH_KEY; static final String AF_INET_KEY; static final String AF_INET6_KEY; static final String AF_PACKET_KEY; static final String AF_LINK_KEY; static final String DLT_RAW_KEY; }### Answer:
@Test public void testHasDefaultDltRaw() { assertNotNull(propertiesLoader.getDltRaw()); assertEquals(getExpectedDefaultDltRaw(), (int) propertiesLoader.getDltRaw()); }