#!/usr/bin/env python
import libxml2

try:
    import libxml2mod
except ModuleNotFoundError:
    from libxmlmods import libxml2mod

import sys

def error(msg, data):
    pass

# Memory debug specific
libxml2.debugMemory(1)

dtd="""<!ELEMENT foo EMPTY>"""
instance="""<?xml version="1.0"?>
<foo></foo>"""

dtd = libxml2.parseDTD(None, 'test.dtd')
ctxt = libxml2.newValidCtxt()
libxml2mod.xmlSetValidErrors(ctxt._o, error, error)
doc = libxml2.parseDoc(instance)
ret = doc.validateDtd(ctxt, dtd)
if ret != 1:
    print("error doing DTD validation")
    sys.exit(1)

doc.freeDoc()
dtd.freeDtd()
del dtd
del ctxt

# Memory debug specific
libxml2.cleanupParser()
if libxml2.debugMemory(1) == 0:
    print("OK")
else:
    print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
    libxml2.dumpMemory()
