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

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• Hash : 4762c856
  Author :
  Date : 2022-12-06T21:40:01
  

  Use python3 not python
  
  As per https://peps.python.org/pep-0394/, the python binary can be one
  of the following options:
  - Python 2
  - Python 3
  - Not exist
  
  All of the scripts in libxml2 use 'python', which may not exist.
  
  As Python 2 reached EOL on the 1st January 2020, it's safe to move the
  scripts to use python3 explicitly.
  

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• python/tests/nsdel.py

• #!/usr/bin/env python3
  #
  # this test exercise the XPath basic engine, parser, etc, and
  # allows to detect memory leaks
  #
  import sys
  import libxml2
  
  instance="""<?xml version="1.0"?>
  <tag xmlns:foo='urn:foo' xmlns:bar='urn:bar' xmlns:baz='urn:baz' />"""
  
  def namespaceDefs(node):
      n = node.nsDefs()
      while n:
          yield n
          n = n.next
  
  def checkNamespaceDefs(node, count):
      nsList = list(namespaceDefs(node))
      #print nsList
      if len(nsList) != count :
          raise Exception("Error: saw %d namespace declarations.  Expected %d" % (len(nsList), count))
      
  # Memory debug specific
  libxml2.debugMemory(1)
  
  # Remove single namespace
  doc = libxml2.parseDoc(instance)
  node = doc.getRootElement()
  checkNamespaceDefs(node, 3)
  ns = node.removeNsDef('urn:bar')
  checkNamespaceDefs(node, 2)
  ns.freeNsList()
  doc.freeDoc()
  
  # Remove all namespaces
  doc = libxml2.parseDoc(instance)
  node = doc.getRootElement()
  checkNamespaceDefs(node, 3)
  ns = node.removeNsDef(None)
  checkNamespaceDefs(node, 0)
  ns.freeNsList()
  doc.freeDoc()
  
  # Remove a namespace referred to by a child
  doc = libxml2.newDoc("1.0")
  root = doc.newChild(None, "root", None)
  namespace = root.newNs("http://example.com/sample", "s")
  child = root.newChild(namespace, "child", None)
  root.removeNsDef("http://example.com/sample")
  doc.reconciliateNs(root)
  namespace.freeNsList()
  doc.serialize() # This should not segfault
  doc.freeDoc()
  
  # Memory debug specific
  libxml2.cleanupParser()
  if libxml2.debugMemory(1) == 0:
      print("OK")
  else:
      print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
      libxml2.dumpMemory()
  

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