    @Test
    public void test_changeOneKeyguardFeaturesDisabled() throws Exception {

        int expected = DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS
                + DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT;
        int result = KeyguardFeatures.setFingerprintDisabled(
                DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS, true);
        assertEquals(expected, result);
    }