I am using Jtidy I pass an InputSteam and then I tried to validate whether or not the XHTML code in the InputSteam is valid.

InputStream s = new ByteArrayInputStream(my_string).getBytes(StandardCharsets.UTF_8));

Tidy tidy = new Tidy();

tidy.parse(s, System.out);

I would like to validate my test, true or false instead of printing this to the console: 5 warnings, no errors were found!

If I get 1 error how do I make my JUnit reflect a fail?

I noticed that no matter what my string looks like it gets parsed as valid always I tried this:

String my_string = "TABLE width = 400 &&&& table height = ";

That gets parsed as valid without any errors.

2 Answers 2


Try replacing the last line with something like this:

tidy.parse(s, null);
  • tidy.parse(s, null); Gives me this compiler error: The method parse(InputStream, OutputStream) is ambiguous for the type Tidy. How can I fix it? Also Assert is depricated.
    – Mike John
    Jun 17, 2014 at 3:48
  • Try using a cast. Or use a StringWriter instead of null. I assume you can figure out the assertion part on your own.
    – user246
    Jun 17, 2014 at 11:23

I had the same question/problem. This is how I solved it:

String validHtml = "some valid html";
InputStream inputStream = new ByteArrayInputStream(validHtml.getBytes(StandardCharsets.UTF_8));

Tidy tidy = new Tidy();

tidy.parse(inputStream, null);

System.out.println("errors "+tidy.getParseErrors());
System.out.println("warnings "+tidy.getParseWarnings());
assertTrue("HTML has errors and it should not.",tidy.getParseErrors()==0);

The trick is in setXMLTags(true).

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