[libxml2]Add libxml2 library

libxml2/python/tests/dtdvalid.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+import setup_test
+import libxml2
+import sys
+
+# 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()
+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)))
+