public static boolean deleteFile(String path, String fileName) {
        File file = Paths.get(path, fileName).toFile();
        if (file.exists()) {
            return file.delete();
        }
        return false;
    }
@Test
    void testDeleteFile() throws IOException {
        File tmpFile = DiskUtils.createTmpFile(UUID.randomUUID().toString(), ".ut");
        assertTrue(DiskUtils.deleteFile(tmpFile.getParent(), tmpFile.getName()));
        assertFalse(DiskUtils.deleteFile(tmpFile.getParent(), tmpFile.getName()));
    }