release/src/router/libxml2/python/tests/xpath.py

   1 #!/usr/bin/python -u
   2 #
   3 # this test exercise the XPath basic engine, parser, etc, and
   4 # allows to detect memory leaks
   5 #
   6 import sys
   7 import libxml2
   8
   9 # Memory debug specific
  10 libxml2.debugMemory(1)
  11
  12 doc = libxml2.parseFile("tst.xml")
  13 if doc.name != "tst.xml":
  14     print("doc.name error")
  15     sys.exit(1);
  16
  17 ctxt = doc.xpathNewContext()
  18 res = ctxt.xpathEval("//*")
  19 if len(res) != 2:
  20     print("xpath query: wrong node set size")
  21     sys.exit(1)
  22 if res[0].name != "doc" or res[1].name != "foo":
  23     print("xpath query: wrong node set value")
  24     sys.exit(1)
  25 ctxt.setContextNode(res[0])
  26 res = ctxt.xpathEval("foo")
  27 if len(res) != 1:
  28     print("xpath query: wrong node set size")
  29     sys.exit(1)
  30 if res[0].name != "foo":
  31     print("xpath query: wrong node set value")
  32     sys.exit(1)
  33 doc.freeDoc()
  34 ctxt.xpathFreeContext()
  35 i = 1000
  36 while i > 0:
  37     doc = libxml2.parseFile("tst.xml")
  38     ctxt = doc.xpathNewContext()
  39     res = ctxt.xpathEval("//*")
  40     doc.freeDoc()
  41     ctxt.xpathFreeContext()
  42     i = i -1
  43 del ctxt
  44
  45 # Memory debug specific
  46 libxml2.cleanupParser()
  47 if libxml2.debugMemory(1) == 0:
  48     print("OK")
  49 else:
  50     print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
  51     libxml2.dumpMemory()