Files.writeString(jcifsPropertiesPath, "jcifs.smb.client.nativeOs=FileOS");
        System.setProperty("jcifs.properties", jcifsPropertiesPath.toString());

        SingletonContext.init(null);
        CIFSContext context = SingletonContext.getInstance();
        assertNotNull(context);
        assertEquals("FileOS", context.getConfig().getNativeOs());
    }

    @Test