Rule matchedRule = ruleManager.getRule(responseData);

        assertNull(matchedRule);
    }

    /**
     * Test getRule with null ResponseData
     */
    public void test_getRule_nullResponseData() {
        TestRule rule = new TestRule("rule1", true);

        ruleManager.addRule(rule);

        Rule matchedRule = ruleManager.getRule(null);

        assertNull(matchedRule);
    }

     *
     * @see org.codelibs.fess.crawler.rule.RuleManager#getRule(org.codelibs.fess.crawler.entity.ResponseData)
     */
    /**
     * Gets the first rule that matches the given response data.
     * @param responseData the response data to match against
     * @return the first matching rule, or null if no rule matches
     */
    @Override
    public Rule getRule(final ResponseData responseData) {

     *
     * @param responseData the response data for which the rule is to be retrieved
     * @return the rule associated with the given response data
     */
    Rule getRule(ResponseData responseData);

    /**
     * Adds a new rule to the rule manager.
     *
     * @param rule the rule to be added
     */
    void addRule(Rule rule);

    /**

        responseData.setUrl("http://example.com/");

        final Rule rule = mock(Rule.class);
        final ResponseProcessor responseProcessor = mock(ResponseProcessor.class);

        when(ruleManager.getRule(responseData)).thenReturn(rule);
        when(rule.getRuleId()).thenReturn("test-rule");
        when(rule.getResponseProcessor()).thenReturn(responseProcessor);

        // Use reflection to access protected method

     * Test RuleManager implementation
     */
    public static class TestRuleManager implements RuleManager {
        private final List<Rule> rules = new ArrayList<>();

        @Override
        public Rule getRule(ResponseData responseData) {
            for (Rule rule : rules) {
                if (rule != null && rule.match(responseData)) {
                    return rule;
                }
            }

     */
    protected void processResponse(final UrlQueue<?> urlQueue, final ResponseData responseData) {
        // get a rule
        final Rule rule = crawlerContext.ruleManager.getRule(responseData);
        if (rule == null) {
            log(logHelper, LogType.NO_RULE, crawlerContext, urlQueue, responseData);
        } else {
            responseData.setRuleId(rule.getRuleId());

            responseData.setSessionId(crawlingInfoId);

            final RuleManager ruleManager = SingletonLaContainer.getComponent(RuleManager.class);
            final Rule rule = ruleManager.getRule(responseData);
            if (rule == null) {
                throw new CrawlingAccessException("No url rule for " + url);
            }
            responseData.setRuleId(rule.getRuleId());

        }
    }

    /**
     * Test implementation of RuleManager for testing
     */
    private static class TestRuleManager implements RuleManager {
        @Override
        public Rule getRule(ResponseData responseData) {
            return null;
        }

        @Override
        public void addRule(Rule rule) {
        }

        @Override
        public void addRule(int index, Rule rule) {

            }

            final RuleManager ruleManager = SingletonLaContainer.getComponent(RuleManager.class);
            final Rule rule = ruleManager.getRule(responseData);
            if (rule == null) {
                logger.warn("No matching url rule for url='{}'", url);
            } else {
                responseData.setRuleId(rule.getRuleId());

    }

    @Test
    public void testMultipleGetFile() throws IOException {
        // Calling getFile() multiple times should return the same file
        ContentOutputStream cos = new ContentOutputStream(5, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5 });
        File file1 = cos.getFile();
        File file2 = cos.getFile();
        assertEquals(file1.getAbsolutePath(), file2.getAbsolutePath());