Hi! I'm using dom4j's great XPath processing to do extensive unit
testing of XHTML. Changing the pages to be explicitly XHTML broke all my
XPaths, and I'm wondering how to fix that. Ideally, I'd like the default
namespace in my documents to be the default namespace in my XPaths.
For starters, let me explain the situation. Consider this simple document:
<html><head><title>Hi!</title></head><body><p>Hello</p></body></html>
You could test for the presence of the paragraph like this:
assertThat(document.selectNodes("//p").size(),is(1));
However, suppose I add the proper doctype:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
And then start the document like this:
<html xmlns="http://www.w3.org/1999/xhtml"; xml:lang="en" lang="en">
Suddenly, my test fails! The XPath no longer matches.
This has been discussed in the archives before. The solution mentioned
is to set it up so that the XPaths have an explicit namespace, and then
to set a namespace map in the DocumentFactory. But for me, that would
require changing hundreds of test assertions, and in a way that would
make them harder to read.
Is there some way I can fix this without changing my tests? I tried
explicitly telling the DocumentFactory that "" should map to the XHTML
namespace, and in the debugger it looks like the Document object has
that right. But I still can't do a selectNodes call and have it return
anything.
Any help is appreciated.
Thanks,
William
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