#!/usr/bin/python -u import sys import libxml2

memory debug specific libxml2.debugMemory(1)

called = “”

def foo(ctx, x):

global called

#
# test that access to the XPath evaluation contexts
#
pctxt = libxml2.xpathParserContext(_obj=ctx)
ctxt = pctxt.context()
called = ctxt.function()
return x + 1

def bar(ctxt, x):

return "%d" % (x + 2)

doc = libxml2.parseFile(“tst.xml”) ctxt = doc.xpathNewContext() res = ctxt.xpathEval(“//*”) if len(res) != 2:

print("xpath query: wrong node set size")
sys.exit(1)

if res.name != “doc” or res.name != “foo”:

print("xpath query: wrong node set value")
sys.exit(1)

libxml2.registerXPathFunction(ctxt._o, “foo”, None, foo) libxml2.registerXPathFunction(ctxt._o, “bar”, None, bar) i = 10000 while i > 0:

res = ctxt.xpathEval("foo(1)")
if res != 2:
    print("xpath extension failure")
    sys.exit(1)
i = i - 1

i = 10000 while i > 0:

res = ctxt.xpathEval("bar(1)")
if res != "3":
    print("xpath extension failure got %s expecting '3'")
    sys.exit(1)
i = i - 1

doc.freeDoc() ctxt.xpathFreeContext()

if called != “foo”:

print("xpath function: failed to access the context")
print("xpath function: %s" % (called))
sys.exit(1)

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

print("OK")

else:

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