kc3-lang/libxml2/python/tests/tstxpath.py

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• Hash : 138213ac
  Author :
  Date : 2023-08-15T12:49:27
  

  python: Fix tests on MinGW
  
  Add the directory containing libxml2.dll with os.add_dll_directory to
  make tests work on MinGW.
  
  This has changed in Python 3.8 but for some reason, the issue only
  turned up with Python 3.11 on MinGW. Contrary to documentation, copying
  libxml2.dll into the directory containing the .pyd file doesn't work.
  

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• python/tests/tstxpath.py

• #!/usr/bin/env python3
  import sys
  import setup_test
  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[0].name != "doc" or res[1].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)))
  

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