private EmbeddedFiles()
    {
    }
@Test
    void testEmbeddedFiles() throws IOException
    {
        String outputFile = "target/test-output/EmbeddedFile.pdf";
        String embeddedFile = "target/test-output/Test.txt";

        new File("target/test-output").mkdirs();
        new File(outputFile).delete();
        new File(embeddedFile).delete();
        String[] args = { outputFile };
        EmbeddedFiles.main(args);
        ExtractEmbeddedFiles.main(args);
        byte[] bytes = Files.readAllBytes(Paths.get(embeddedFile));
        String content = new String(bytes);
        Assertions.assertEquals("This is the contents of the embedded file", content);
        new File(embeddedFile).delete();
        new File(outputFile).delete();
    }