assertNull(pdfExtractor.getPassword(params));
    }

    public void test_getPassword() {
        String url;
        String resourceName;
        pdfExtractor.addPassword(".*hoge1.pdf", "password");
        pdfExtractor.addPassword("fuga.pdf", "PASSWORD");
        HashMap<String, String> params = new HashMap<>();

        url = null;
        resourceName = null;
        params.put(ExtractData.URL, url);

    protected Map<Pattern, String> passwordMap = new HashMap<>();

    private final Map<String, List<Pair<Pattern, String>>> configPasswordMap = new ConcurrentHashMap<>();

    public void addPassword(final String regex, final String password) {
        passwordMap.put(Pattern.compile(regex), password);
    }

    protected String getPassword(final Map<String, String> params) {