logger.info(content);

        // Verify plain text extraction
        assertTrue(content.contains("Introduction"));
        assertTrue(content.contains("This is a sample Markdown document"));
        assertTrue(content.contains("Features"));
        assertTrue(content.contains("Code Examples"));
    }

    public void test_frontMatterExtraction() {

      assertTrue(testInstance.containsColumn(1));
      assertTrue(testInstance.containsColumn(2));
      assertFalse(testInstance.containsColumn(3));
    }
  }

  public void testContainsRow() {
    for (ImmutableTable<Character, Integer, String> testInstance : getTestInstances()) {
      assertTrue(testInstance.containsRow('a'));
      assertTrue(testInstance.containsRow('b'));

        String result = netServerEnum2.toString();

        assertNotNull(result);
        assertTrue(result.contains("NetServerEnum2["));
        assertTrue(result.contains("name=\\PIPE\\LANMAN"));
        assertTrue(result.contains("serverTypes=SV_TYPE_ALL"));
        assertTrue(result.endsWith("]"));
    }

    @Test
    @DisplayName("Test toString with SV_TYPE_DOMAIN_ENUM")

        assertTrue(str.contains("NtlmContext["));
        assertTrue(str.contains("auth="));
        assertTrue(str.contains("ntlmsspFlags="));
        assertTrue(str.contains("workstation="));
        assertTrue(str.contains("isEstablished=false"));
        assertTrue(str.contains("state=1"));
        assertTrue(str.contains("serverChallenge=null"));
        assertTrue(str.contains("signingKey=null"));
    }

    assertTrue(cycle.hasNext());
    assertEquals("b", cycle.next());
    assertTrue(cycle.hasNext());
    assertEquals("a", cycle.next());
    cycle.remove();
    assertEquals(singletonList("b"), iterable);
    assertTrue(cycle.hasNext());
    assertEquals("b", cycle.next());
    assertTrue(cycle.hasNext());
    assertEquals("b", cycle.next());
    cycle.remove();
    assertEquals(emptyList(), iterable);

    assertTrue(TypeToken.of(char[][].class).isArray());
    assertTrue(TypeToken.of(byte[].class).isArray());
    assertTrue(TypeToken.of(short[].class).isArray());
    assertTrue(TypeToken.of(int[].class).isArray());
    assertTrue(TypeToken.of(long[].class).isArray());
    assertTrue(TypeToken.of(float[].class).isArray());
    assertTrue(TypeToken.of(double[].class).isArray());

  }

  public void testContainsAll_notSortedSet() {
    SortedSet<String> set = of("a", "b", "f");
    assertTrue(set.containsAll(emptyList()));
    assertTrue(set.containsAll(asList("b")));
    assertTrue(set.containsAll(asList("b", "b")));
    assertTrue(set.containsAll(asList("b", "f")));
    assertTrue(set.containsAll(asList("b", "f", "a")));
    assertFalse(set.containsAll(asList("d")));

        void testIsForceUnicode() {
            assertTrue(response.isForceUnicode());
        }

        @Test
        @DisplayName("Should consistently return true for unicode")
        void testIsForceUnicodeMultipleCalls() {
            for (int i = 0; i < 5; i++) {
                assertTrue(response.isForceUnicode());
            }
        }
    }

    @Nested

    File i18nFile = getTestFile("i18n.txt");
    assertTrue(Files.equal(i18nFile, temp));
  }

  public void testTouch() throws IOException {
    File temp = createTempFile();
    assertTrue(temp.exists());
    assertTrue(temp.delete());
    assertFalse(temp.exists());
    Files.touch(temp);
    assertTrue(temp.exists());
    Files.touch(temp);
    assertTrue(temp.exists());

    assertThrows(

        final String content = xmlExtractor.getText(in, null).getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
        assertTrue(content.contains("コメント"));
    }

    public void test_getXml_utf8_ignoreCommentTag() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/test_utf8.xml");