// allMatch may short-circuit, so chain3 might not be called
        assertTrue(chain3.changePasswordCallCount <= 1);
    }

    // Test delete with no chains
    public void test_delete_noChains() {
        User user = createTestUser("testuser");
        authenticationManager.delete(user);
        // Should not throw exception even with no chains
    }

    // Test delete with single chain