@Test
public void should_not_save_user_twice() throws Exception {
running(fakeApplication, new Runnable() {
@Override
public void run() {
final Identity identity = defaultIdentity;
assertThat(userService.doSave(identity)).isNotNull()
.isEqualTo(defaultIdentity);
assertThat(userService.doSave(identity)).isNotNull()
.isEqualTo(defaultIdentity);