Yitz Gale added the comment:
Sure. Here is a simple test case:
def testUseCharacterStream(self):
'''If the source is an InputSource with a character stream, use
it.'''
src = xml.sax.xmlreader.InputSource(temp_file_name)
src.setCharacterStream(StringIO.StringIO(u"foo"))
prep = xml.sax.saxutils.prepare_input_source(src)
self.failIf(prep.getCharacterStream() is None, "ignored character
stream")
If "temp_file_name" is omitted, you'll get an
AttributeError, and if you put it in but the
file doesn't exist, you'll get an IOError.
I'm attaching an almost full set of tests.
It omits the case of a URL. You can easily
put that in if you have a handy function that
converts a file path to a file URL, with all
the fidgety stuff you need for Windows. (Does that
already exist somewhere?)
Unfortunately, I now see that the problem
is a bit deeper than this. There are two more
related bugs that need to be fixed before
this really works.
See #2174 and #2175.
Added file: http://bugs.python.org/file9536/test_prepare_input_source.py
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