### Question:
BaseHeader implements ISOHeader, Loggeable { public String getDestination() { return null; } BaseHeader();  BaseHeader(byte[] header); Object clone(); byte[] pack(); int unpack(byte[] header); int getLength(); void setDestination(String dst); void setSource(String src); String getDestination(); String getSource(); void swapDirection(); void dump(PrintStream p, String indent); void setAsciiEncoding(boolean asciiEncoding); boolean isAsciiEncoding();  }### Answer:
@Test public void testGetDestination() throws Throwable { String result = new BaseHeader().getDestination(); assertNull(result, "result"); }