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

   1 #!/usr/bin/python -u
   2 import sys
   3 import libxml2
   4
   5 #memory debug specific
   6 libxml2.debugMemory(1)
   7
   8 #
   9 # A document hosting the nodes returned from the extension function
  10 #
  11 mydoc = libxml2.newDoc("1.0")
  12
  13 def foo(ctx, str):
  14     global mydoc
  15
  16     #
  17     # test returning a node set works as expected
  18     #
  19     parent = mydoc.newDocNode(None, 'p', None)
  20     mydoc.addChild(parent)
  21     node = mydoc.newDocText(str)
  22     parent.addChild(node)
  23     return [parent]
  24
  25 doc = libxml2.parseFile("tst.xml")
  26 ctxt = doc.xpathNewContext()
  27 libxml2.registerXPathFunction(ctxt._o, "foo", None, foo)
  28 res = ctxt.xpathEval("foo('hello')")
  29 if type(res) != type([]):
  30     print("Failed to return a nodeset")
  31     sys.exit(1)
  32 if len(res) != 1:
  33     print("Unexpected nodeset size")
  34     sys.exit(1)
  35 node = res[0]
  36 if node.name != 'p':
  37     print("Unexpected nodeset element result")
  38     sys.exit(1)
  39 node = node.children
  40 if node.type != 'text':
  41     print("Unexpected nodeset element children type")
  42     sys.exit(1)
  43 if node.content != 'hello':
  44     print("Unexpected nodeset element children content")
  45     sys.exit(1)
  46
  47 doc.freeDoc()
  48 mydoc.freeDoc()
  49 ctxt.xpathFreeContext()
  50
  51 #memory debug specific
  52 libxml2.cleanupParser()
  53 if libxml2.debugMemory(1) == 0:
  54     print("OK")
  55 else:
  56     print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
  57     libxml2.dumpMemory()