#!/usr/bin/python import sys, libxml2
libxml2.debugMemory(True)
expect=“”“–> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression –> Invalid expression ”“” err=“” def callback(ctx, str):
global err err = err + "%s %s" % (ctx, str)
libxml2.registerErrorHandler(callback, “–>”)
doc = libxml2.parseDoc(“<fish/>”) ctxt = doc.xpathNewContext() ctxt.setContextNode(doc) badexprs = (
":false()", "bad:()", "bad(:)", ":bad(:)", "bad:(:)", "bad:bad(:)", "a:/b", "/c:/d", "//e:/f", "g://h" )
for expr in badexprs:
try: ctxt.xpathEval(expr) except libxml2.xpathError: pass else: print("Unexpectedly legal expression:", expr)
ctxt.xpathFreeContext() doc.freeDoc()
if err != expect:
print("error") print("received %s" %(err)) print("expected %s" %(expect)) sys.exit(1)
libxml2.cleanupParser() leakedbytes = libxml2.debugMemory(True) if leakedbytes == 0:
print("OK")
else:
print("Memory leak", leakedbytes, "bytes") # drop file to .memdump file in cwd, but won't work if not compiled in libxml2.dumpMemory()