@Test
public void testCreateSSLClientContextObjectEmptyTrustStore() {

    String filePath = Resources.getResource("keystore.pkcs12").getFile();
    System.setProperty("athenz.ssl_key_store", filePath);
    System.setProperty("athenz.ssl_key_store_password", "123456");
    // make sure we have no truststore path
    System.clearProperty("athenz.ssl_trust_store");
    SSLContext sslContext = ZTSUtils.createServerClientSSLContext(null);
    assertNull(sslContext);
}