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

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• Hash : 4258b9c8
  Author :
  Date : 2002-12-20T10:29:40
  

  one really need to provide the base URI information when creating a reader
  
  * doc/libxml2-api.xml python/tests/reader.py: one really need
    to provide the base URI information when creating a reader parser
    from an input stream. Updated the API and the example using it.
  Daniel
  

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• python/tests/reader.py

• #!/usr/bin/python -u
  import libxml2
  import StringIO
  import sys
  
  # Memory debug specific
  libxml2.debugMemory(1)
  
  f = StringIO.StringIO("""<a><b b1="b1"/><c>content of c</c></a>""")
  input = libxml2.inputBuffer(f)
  reader = input.newTextReader("test1")
  ret = reader.read()
  if ret != 1:
      print "Error reading to first element"
      sys.exit(1)
  if reader.name() != "a" or reader.isEmptyElement() != 0 or \
     reader.nodeType() != 1 or reader.hasAttributes() != 0:
      print "Error reading the first element"
      sys.exit(1)
  ret = reader.read()
  if ret != 1:
      print "Error reading to second element"
      sys.exit(1)
  if reader.name() != "b" or reader.isEmptyElement() != 1 or \
     reader.nodeType() != 1 or reader.hasAttributes() != 1:
      print "Error reading the second element"
      sys.exit(1)
  ret = reader.read()
  if ret != 1:
      print "Error reading to third element"
      sys.exit(1)
  if reader.name() != "c" or reader.isEmptyElement() != 0 or \
     reader.nodeType() != 1 or reader.hasAttributes() != 0:
      print "Error reading the third element"
      sys.exit(1)
  ret = reader.read()
  if ret != 1:
      print "Error reading to text node"
      sys.exit(1)
  if reader.name() != "#text" or reader.isEmptyElement() != 0 or \
     reader.nodeType() != 3 or reader.hasAttributes() != 0 or \
     reader.value() != "content of c":
      print "Error reading the text node"
      sys.exit(1)
  ret = reader.read()
  if ret != 1:
      print "Error reading to end of third element"
      sys.exit(1)
  if reader.name() != "c" or reader.isEmptyElement() != 0 or \
     reader.nodeType() != 15 or reader.hasAttributes() != 0:
      print "Error reading the end of third element"
      sys.exit(1)
  ret = reader.read()
  if ret != 1:
      print "Error reading to end of first element"
      sys.exit(1)
  if reader.name() != "a" or reader.isEmptyElement() != 0 or \
     reader.nodeType() != 15 or reader.hasAttributes() != 0:
      print "Error reading the end of first element"
      sys.exit(1)
  ret = reader.read()
  if ret != 0:
      print "Error reading to end of document"
      sys.exit(1)
  
  #
  # example from the XmlTextReader docs
  #
  f = StringIO.StringIO("""<test xmlns:dt="urn:datatypes" dt:type="int"/>""")
  input = libxml2.inputBuffer(f)
  reader = input.newTextReader("test2")
  
  ret = reader.read()
  if ret != 1:
      print "Error reading test element"
      sys.exit(1)
  if reader.getAttributeNo(0) != "urn:datatypes" or \
     reader.getAttributeNo(1) != "int" or \
     reader.getAttributeNs("type", "urn:datatypes") != "int" or \
     reader.getAttribute("dt:type") != "int":
      print "error reading test attributes"
      sys.exit(1)
  
  #
  # example from the XmlTextReader docs
  #
  f = StringIO.StringIO("""<root xmlns:a="urn:456">
  <item>
  <ref href="a:b"/>
  </item>
  </root>""")
  input = libxml2.inputBuffer(f)
  reader = input.newTextReader("test3")
  
  ret = reader.read()
  while ret == 1:
      if reader.name() == "ref":
          if reader.lookupNamespace("a") != "urn:456":
  	    print "error resolving namespace prefix"
  	    sys.exit(1)
  	break
      ret = reader.read()
  if ret != 1:
      print "Error finding the ref element"
      sys.exit(1)
  
  #
  # Home made example for the various attribute access functions
  #
  f = StringIO.StringIO("""<testattr xmlns="urn:1" xmlns:a="urn:2" b="b" a:b="a:b"/>""")
  input = libxml2.inputBuffer(f)
  reader = input.newTextReader("test4")
  ret = reader.read()
  if ret != 1:
      print "Error reading the testattr element"
      sys.exit(1)
  #
  # Attribute exploration by index
  #
  if reader.moveToAttributeNo(0) != 1:
      print "Failed moveToAttribute(0)"
      sys.exit(1)
  if reader.value() != "urn:1":
      print "Failed to read attribute(0)"
      sys.exit(1)
  if reader.name() != "xmlns":
      print "Failed to read attribute(0) name"
      sys.exit(1)
  if reader.moveToAttributeNo(1) != 1:
      print "Failed moveToAttribute(1)"
      sys.exit(1)
  if reader.value() != "urn:2":
      print "Failed to read attribute(1)"
      sys.exit(1)
  if reader.name() != "xmlns:a":
      print "Failed to read attribute(1) name"
      sys.exit(1)
  if reader.moveToAttributeNo(2) != 1:
      print "Failed moveToAttribute(2)"
      sys.exit(1)
  if reader.value() != "b":
      print "Failed to read attribute(2)"
      sys.exit(1)
  if reader.name() != "b":
      print "Failed to read attribute(2) name"
      sys.exit(1)
  if reader.moveToAttributeNo(3) != 1:
      print "Failed moveToAttribute(3)"
      sys.exit(1)
  if reader.value() != "a:b":
      print "Failed to read attribute(3)"
      sys.exit(1)
  if reader.name() != "a:b":
      print "Failed to read attribute(3) name"
      sys.exit(1)
  #
  # Attribute exploration by name
  #
  if reader.moveToAttribute("xmlns") != 1:
      print "Failed moveToAttribute('xmlns')"
      sys.exit(1)
  if reader.value() != "urn:1":
      print "Failed to read attribute('xmlns')"
      sys.exit(1)
  if reader.moveToAttribute("xmlns:a") != 1:
      print "Failed moveToAttribute('xmlns')"
      sys.exit(1)
  if reader.value() != "urn:2":
      print "Failed to read attribute('xmlns:a')"
      sys.exit(1)
  if reader.moveToAttribute("b") != 1:
      print "Failed moveToAttribute('b')"
      sys.exit(1)
  if reader.value() != "b":
      print "Failed to read attribute('b')"
      sys.exit(1)
  if reader.moveToAttribute("a:b") != 1:
      print "Failed moveToAttribute('a:b')"
      sys.exit(1)
  if reader.value() != "a:b":
      print "Failed to read attribute('a:b')"
      sys.exit(1)
  if reader.moveToAttributeNs("b", "urn:2") != 1:
      print "Failed moveToAttribute('b', 'urn:2')"
      sys.exit(1)
  if reader.value() != "a:b":
      print "Failed to read attribute('b', 'urn:2')"
      sys.exit(1)
  #
  # Go back and read in sequence
  #
  if reader.moveToElement() != 1:
      print "Failed to move back to element"
      sys.exit(1)
  if reader.moveToFirstAttribute() != 1:
      print "Failed to move to first attribute"
      sys.exit(1)
  if reader.value() != "urn:1":
      print "Failed to read attribute(0)"
      sys.exit(1)
  if reader.name() != "xmlns":
      print "Failed to read attribute(0) name"
      sys.exit(1)
  if reader.moveToNextAttribute() != 1:
      print "Failed to move to next attribute"
      sys.exit(1)
  if reader.value() != "urn:2":
      print "Failed to read attribute(1)"
      sys.exit(1)
  if reader.name() != "xmlns:a":
      print "Failed to read attribute(1) name"
      sys.exit(1)
  if reader.moveToNextAttribute() != 1:
      print "Failed to move to next attribute"
      sys.exit(1)
  if reader.value() != "b":
      print "Failed to read attribute(2)"
      sys.exit(1)
  if reader.name() != "b":
      print "Failed to read attribute(2) name"
      sys.exit(1)
  if reader.moveToNextAttribute() != 1:
      print "Failed to move to next attribute"
      sys.exit(1)
  if reader.value() != "a:b":
      print "Failed to read attribute(3)"
      sys.exit(1)
  if reader.name() != "a:b":
      print "Failed to read attribute(3) name"
      sys.exit(1)
  if reader.moveToNextAttribute() != 0:
      print "Failed to detect last attribute"
      sys.exit(1)
  
  del f
  del input
  del reader
  
  # 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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