### Question:
PasswordEntry { static void delete(byte[] buf, short ofs, byte len) { PasswordEntry pe = search(buf, ofs, len); if (pe != null) { JCSystem.beginTransaction(); pe.remove(); pe.recycle(); JCSystem.commitTransaction(); } } private  PasswordEntry(); static PasswordEntry getFirst(); byte getIdLength(); PasswordEntry getNext(); void setId(byte[] buf, short ofs, byte len); void setUserName(byte[] buf, short ofs, byte len); void setPassword(byte[] buf, short ofs, byte len); static short SIZE_ID; static short SIZE_USERNAME; static short SIZE_PASSWORD; }### Answer:
@Test public void deleteTest() throws NoSuchFieldException, IllegalAccessException { assertEquals("init length", 0, getLength()); addItem(ID_BASIC, USERNAME_BASIC, PASSWORD_BASIC); assertEquals("length after addition", 1, getLength()); deleteItem(ID_BASIC); assertEquals("length after deletion", 0, getLength()); }