@Test(expected = AmbariException.class)
public void testModifyPassword() throws Exception {
users.createUser("user", "user");
UserEntity userEntity = userDAO.findLocalUserByName("user");
assertNotSame("user", userEntity.getUserPassword());
assertTrue(passwordEncoder.matches("user", userEntity.getUserPassword()));
users.modifyPassword("user", "user", "resu");
assertNotSame(userEntity.getUserPassword(), userDAO.findLocalUserByName("user").getUserPassword());
users.modifyPassword("user", "error", "new");
fail("Exception was not thrown");
}