#!/usr/bin/python -u # # this test exercise the XPath basic engine, parser, etc, and # allows to detect memory leaks # import sys import libxml2

instance=“”“<?xml version=”1.0“?> <tag xmlns:foo='urn:foo' xmlns:bar='urn:bar' xmlns:baz='urn:baz' />”“”

def namespaceDefs(node):

n = node.nsDefs()
while n:
    yield n
    n = n.next

def checkNamespaceDefs(node, count):

nsList = list(namespaceDefs(node))
#print nsList
if len(nsList) != count :
    raise Exception("Error: saw %d namespace declarations.  Expected %d" % (len(nsList), count))

# Memory debug specific libxml2.debugMemory(1)

# Remove single namespace doc = libxml2.parseDoc(instance) node = doc.getRootElement() checkNamespaceDefs(node, 3) ns = node.removeNsDef('urn:bar') checkNamespaceDefs(node, 2) ns.freeNsList() doc.freeDoc()

# Remove all namespaces doc = libxml2.parseDoc(instance) node = doc.getRootElement() checkNamespaceDefs(node, 3) ns = node.removeNsDef(None) checkNamespaceDefs(node, 0) ns.freeNsList() doc.freeDoc()

# Remove a namespace refered to by a child doc = libxml2.newDoc(“1.0”) root = doc.newChild(None, “root”, None) namespace = root.newNs(“example.com/sample”, “s”) child = root.newChild(namespace, “child”, None) root.removeNsDef(“example.com/sample”) doc.reconciliateNs(root) namespace.freeNsList() doc.serialize() # This should not segfault doc.freeDoc()

# Memory debug specific libxml2.cleanupParser() if libxml2.debugMemory(1) == 0:

print("OK")

else:

print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
libxml2.dumpMemory()