@Test(expected = PolicyEngineException.class)
public void testStdPolicyEngineInitialize_PropertyFileMissingMandatoryProperties_Exception()
        throws Exception {

    final File file = temporaryFolder.newFile(INVALID_CONFIG_PROPERTY_FILE);
    final Properties properties = new Properties();
    properties.setProperty(PDP_URL_PROP_NAME, PDP_PROP_VALUE);
    creatPropertyFile(file, properties);
    new StdPolicyEngine(file.toString(), (String) null);
}