}

        assertEquals(1, chain.deleteCalls.size());
    }

    // Test changePassword with valid credentials
    public void test_changePassword_success() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.changePasswordResult = true;

        boolean result = chain.changePassword("testuser", "newpassword123");

        assertTrue(result);

        assertEquals(user, chain3.lastUpdatedUser);
    }

    // Test changePassword with no chains
    public void test_changePassword_noChains() {
        boolean result = authenticationManager.changePassword("testuser", "newpass");
        assertTrue(result); // Returns true when no chains present
    }

    // Test changePassword with single chain success
    public void test_changePassword_singleChain_success() {

        changePassword(username, password);
    }

    @Override
    public void delete(final User user) {
        final String username = user.getName();
        if (isTargetUser(username)) {
            executeCommand(deleteCommand, username, StringUtil.EMPTY);
        }
    }

    @Override
    public boolean changePassword(final String username, final String password) {