assertTrue(c2.isClosed());

    assertSuppressed(
        new Suppression(c2, tryException, c2Exception),
        new Suppression(c1, tryException, c1Exception));
  }

  public void testErrors() throws IOException {
    Closer closer = new Closer(suppressor);

    Error c1Exception = new Error();
    Error c2Exception = new Error();
    Error c3Exception = new Error();

    assertTrue(c2.isClosed());

    assertSuppressed(
        new Suppression(c2, tryException, c2Exception),
        new Suppression(c1, tryException, c1Exception));
  }

  public void testErrors() throws IOException {
    Closer closer = new Closer(suppressor);

    Error c1Exception = new Error();
    Error c2Exception = new Error();
    Error c3Exception = new Error();

        errorCount.set(5);
        assertEquals(5, crawlingConfigHelper.getExcludedUrlList("123").size());
        systemProperties.setProperty(Constants.IGNORE_FAILURE_TYPE_PROPERTY, "TestError0");
        assertEquals(4, crawlingConfigHelper.getExcludedUrlList("123").size());
    }

    public void test_getDefaultConfig() {
        assertTrue(crawlingConfigHelper.getDefaultConfig(null).isEmpty());

     * @throws Exception
     */
    @Test
    public void testWarn() throws Exception {
        logger.warn("warn");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testError() throws Exception {
        logger.error("error");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testFatal() throws Exception {
        logger.fatal("fatal");
    }

    }

    public void test_addUpdateConfigListener_withException() {
        systemHelper.addUpdateConfigListener("TestError", () -> {
            throw new RuntimeException("Test error");
        });
        final String result = systemHelper.updateConfiguration();
        assertTrue(result.contains("TestError:"));
        assertTrue(result.contains("Test error"));
    }

    public void test_getFilteredEnvMap_emptyKey() {