public void valid_login() {
Authentication auth =
provider.authenticate(new UsernamePasswordAuthenticationToken("scott", "tiger"));
assertNotNull(auth);
UserDetails principal = (UserDetails) auth.getPrincipal();
assertEquals(principal.getClass(), SessionContext.class);
assertEquals(principal.getUsername(), "scott");
}
@Test(expectedExceptions = BadCredentialsException.class)
public void invalid_login() {
provider.authenticate(new UsernamePasswordAuthenticationToken("scott", "lion"));
}