@Test
public void testSyncUpdate() throws Exception {
// create user upfront in order to test update mode
Authorizable user = userManager.createUser(USER_ID, null);
ExternalUser externalUser = idp.getUser(USER_ID);
user.setProperty("rep:externalId", new ValueFactoryImpl(root, NamePathMapper.DEFAULT).createValue(externalUser.getExternalId().getString()));
root.commit();
ContentSession cs = null;
try {
cs = login(new SimpleCredentials(USER_ID, USER_PWD.toCharArray()));