# xml.etree test.  This file contains enough tests to make sure that
# all included components work as they should.
# Large parts are extracted from the upstream test suite.
# IMPORTANT: the same doctests are run from "test_xml_etree_c" in
# order to ensure consistency between the C implementation and the
# Python implementation.
#
# For this purpose, the module-level "ET" symbol is temporarily
# monkey-patched when running the "test_xml_etree_c" test suite.
# Don't re-import "xml.etree.ElementTree" module in the docstring,
# except if the test is specific to the Python implementation.
import sys
import cgi
import unittest
from test import support
from test.support import findfile
from xml.etree import ElementTree as ET
SIMPLE_XMLFILE = findfile("simple.xml", subdir="xmltestdata")
try:
    SIMPLE_XMLFILE.encode("utf8")
except UnicodeEncodeError:
    raise unittest.SkipTest("filename is not encodable to utf8")
SIMPLE_NS_XMLFILE = findfile("simple-ns.xml", subdir="xmltestdata")
SAMPLE_XML = """\
  text 
  text 
  "
    return elem.tag
def summarize_list(seq):
    return [summarize(elem) for elem in seq]
def normalize_crlf(tree):
    for elem in tree.iter():
        if elem.text:
            elem.text = elem.text.replace("\r\n", "\n")
        if elem.tail:
            elem.tail = elem.tail.replace("\r\n", "\n")
def normalize_exception(func, *args, **kwargs):
    # Ignore the exception __module__
    try:
        func(*args, **kwargs)
    except Exception as err:
        print("Traceback (most recent call last):")
        print("{}: {}".format(err.__class__.__name__, err))
def check_string(string):
    len(string)
    for char in string:
        if len(char) != 1:
            print("expected one-character string, got %r" % char)
    new_string = string + ""
    new_string = string + " "
    string[:0]
def check_mapping(mapping):
    len(mapping)
    keys = mapping.keys()
    items = mapping.items()
    for key in keys:
        item = mapping[key]
    mapping["key"] = "value"
    if mapping["key"] != "value":
        print("expected value string, got %r" % mapping["key"])
def check_element(element):
    if not ET.iselement(element):
        print("not an element")
    if not hasattr(element, "tag"):
        print("no tag member")
    if not hasattr(element, "attrib"):
        print("no attrib member")
    if not hasattr(element, "text"):
        print("no text member")
    if not hasattr(element, "tail"):
        print("no tail member")
    check_string(element.tag)
    check_mapping(element.attrib)
    if element.text is not None:
        check_string(element.text)
    if element.tail is not None:
        check_string(element.tail)
    for elem in element:
        check_element(elem)
# --------------------------------------------------------------------
# element tree tests
def interface():
    """
    Test element tree interface.
    >>> element = ET.Element("tag")
    >>> check_element(element)
    >>> tree = ET.ElementTree(element)
    >>> check_element(tree.getroot())
    >>> element = ET.Element("t\\xe4g", key="value")
    >>> tree = ET.ElementTree(element)
    >>> repr(element)   # doctest: +ELLIPSIS
    ""
    >>> element = ET.Element("tag", key="value")
    Make sure all standard element methods exist.
    >>> check_method(element.append)
    >>> check_method(element.extend)
    >>> check_method(element.insert)
    >>> check_method(element.remove)
    >>> check_method(element.getchildren)
    >>> check_method(element.find)
    >>> check_method(element.iterfind)
    >>> check_method(element.findall)
    >>> check_method(element.findtext)
    >>> check_method(element.clear)
    >>> check_method(element.get)
    >>> check_method(element.set)
    >>> check_method(element.keys)
    >>> check_method(element.items)
    >>> check_method(element.iter)
    >>> check_method(element.itertext)
    >>> check_method(element.getiterator)
    These methods return an iterable. See bug 6472.
    >>> check_method(element.iter("tag").__next__)
    >>> check_method(element.iterfind("tag").__next__)
    >>> check_method(element.iterfind("*").__next__)
    >>> check_method(tree.iter("tag").__next__)
    >>> check_method(tree.iterfind("tag").__next__)
    >>> check_method(tree.iterfind("*").__next__)
    These aliases are provided:
    >>> assert ET.XML == ET.fromstring
    >>> assert ET.PI == ET.ProcessingInstruction
    >>> assert ET.XMLParser == ET.XMLTreeBuilder
    """
def simpleops():
    """
    Basic method sanity checks.
    >>> elem = ET.XML("hello "))
    'hello '
    >>> serialize(ET.XML("hello "))
    'hello '
    >>> serialize(ET.XML("hello '
    """
# Only with Python implementation
def simplefind():
    """
    Test find methods using the elementpath fallback.
    >>> from xml.etree import ElementTree
    >>> CurrentElementPath = ElementTree.ElementPath
    >>> ElementTree.ElementPath = ElementTree._SimpleElementPath()
    >>> elem = ElementTree.XML(SAMPLE_XML)
    >>> elem.find("tag").tag
    'tag'
    >>> ElementTree.ElementTree(elem).find("tag").tag
    'tag'
    >>> elem.findtext("tag")
    'text'
    >>> elem.findtext("tog")
    >>> elem.findtext("tog", "default")
    'default'
    >>> ElementTree.ElementTree(elem).findtext("tag")
    'text'
    >>> summarize_list(elem.findall("tag"))
    ['tag', 'tag']
    >>> summarize_list(elem.findall(".//tag"))
    ['tag', 'tag', 'tag']
    Path syntax doesn't work in this case.
    >>> elem.find("section/tag")
    >>> elem.findtext("section/tag")
    >>> summarize_list(elem.findall("section/tag"))
    []
    >>> ElementTree.ElementPath = CurrentElementPath
    """
def find():
    """
    Test find methods (including xpath syntax).
    >>> elem = ET.XML(SAMPLE_XML)
    >>> elem.find("tag").tag
    'tag'
    >>> ET.ElementTree(elem).find("tag").tag
    'tag'
    >>> elem.find("section/tag").tag
    'tag'
    >>> elem.find("./tag").tag
    'tag'
    >>> ET.ElementTree(elem).find("./tag").tag
    'tag'
    >>> ET.ElementTree(elem).find("/tag").tag
    'tag'
    >>> elem[2] = ET.XML(SAMPLE_SECTION)
    >>> elem.find("section/nexttag").tag
    'nexttag'
    >>> ET.ElementTree(elem).find("section/tag").tag
    'tag'
    >>> ET.ElementTree(elem).find("tog")
    >>> ET.ElementTree(elem).find("tog/foo")
    >>> elem.findtext("tag")
    'text'
    >>> elem.findtext("section/nexttag")
    ''
    >>> elem.findtext("section/nexttag", "default")
    ''
    >>> elem.findtext("tog")
    >>> elem.findtext("tog", "default")
    'default'
    >>> ET.ElementTree(elem).findtext("tag")
    'text'
    >>> ET.ElementTree(elem).findtext("tog/foo")
    >>> ET.ElementTree(elem).findtext("tog/foo", "default")
    'default'
    >>> ET.ElementTree(elem).findtext("./tag")
    'text'
    >>> ET.ElementTree(elem).findtext("/tag")
    'text'
    >>> elem.findtext("section/tag")
    'subtext'
    >>> ET.ElementTree(elem).findtext("section/tag")
    'subtext'
    >>> summarize_list(elem.findall("."))
    ['body']
    >>> summarize_list(elem.findall("tag"))
    ['tag', 'tag']
    >>> summarize_list(elem.findall("tog"))
    []
    >>> summarize_list(elem.findall("tog/foo"))
    []
    >>> summarize_list(elem.findall("*"))
    ['tag', 'tag', 'section']
    >>> summarize_list(elem.findall(".//tag"))
    ['tag', 'tag', 'tag', 'tag']
    >>> summarize_list(elem.findall("section/tag"))
    ['tag']
    >>> summarize_list(elem.findall("section//tag"))
    ['tag', 'tag']
    >>> summarize_list(elem.findall("section/*"))
    ['tag', 'nexttag', 'nextsection']
    >>> summarize_list(elem.findall("section//*"))
    ['tag', 'nexttag', 'nextsection', 'tag']
    >>> summarize_list(elem.findall("section/.//*"))
    ['tag', 'nexttag', 'nextsection', 'tag']
    >>> summarize_list(elem.findall("*/*"))
    ['tag', 'nexttag', 'nextsection']
    >>> summarize_list(elem.findall("*//*"))
    ['tag', 'nexttag', 'nextsection', 'tag']
    >>> summarize_list(elem.findall("*/tag"))
    ['tag']
    >>> summarize_list(elem.findall("*/./tag"))
    ['tag']
    >>> summarize_list(elem.findall("./tag"))
    ['tag', 'tag']
    >>> summarize_list(elem.findall(".//tag"))
    ['tag', 'tag', 'tag', 'tag']
    >>> summarize_list(elem.findall("././tag"))
    ['tag', 'tag']
    >>> summarize_list(elem.findall(".//tag[@class]"))
    ['tag', 'tag', 'tag']
    >>> summarize_list(elem.findall(".//tag[@class='a']"))
    ['tag']
    >>> summarize_list(elem.findall(".//tag[@class='b']"))
    ['tag', 'tag']
    >>> summarize_list(elem.findall(".//tag[@id]"))
    ['tag']
    >>> summarize_list(elem.findall(".//section[tag]"))
    ['section']
    >>> summarize_list(elem.findall(".//section[element]"))
    []
    >>> summarize_list(elem.findall("../tag"))
    []
    >>> summarize_list(elem.findall("section/../tag"))
    ['tag', 'tag']
    >>> summarize_list(ET.ElementTree(elem).findall("./tag"))
    ['tag', 'tag']
    Following example is invalid in 1.2.
    A leading '*' is assumed in 1.3.
    >>> elem.findall("section//") == elem.findall("section//*")
    True
    ET's Path module handles this case incorrectly; this gives
    a warning in 1.3, and the behaviour will be modified in 1.4.
    >>> summarize_list(ET.ElementTree(elem).findall("/tag"))
    ['tag', 'tag']
    >>> elem = ET.XML(SAMPLE_XML_NS)
    >>> summarize_list(elem.findall("tag"))
    []
    >>> summarize_list(elem.findall("{http://effbot.org/ns}tag"))
    ['{http://effbot.org/ns}tag', '{http://effbot.org/ns}tag']
    >>> summarize_list(elem.findall(".//{http://effbot.org/ns}tag"))
    ['{http://effbot.org/ns}tag', '{http://effbot.org/ns}tag', '{http://effbot.org/ns}tag']
    """
def file_init():
    """
    >>> import io
    >>> stringfile = io.BytesIO(SAMPLE_XML.encode("utf-8"))
    >>> tree = ET.ElementTree(file=stringfile)
    >>> tree.find("tag").tag
    'tag'
    >>> tree.find("section/tag").tag
    'tag'
    >>> tree = ET.ElementTree(file=SIMPLE_XMLFILE)
    >>> tree.find("element").tag
    'element'
    >>> tree.find("element/../empty-element").tag
    'empty-element'
    """
def bad_find():
    """
    Check bad or unsupported path expressions.
    >>> elem = ET.XML(SAMPLE_XML)
    >>> elem.findall("/tag")
    Traceback (most recent call last):
    SyntaxError: cannot use absolute path on element
    """
def path_cache():
    """
    Check that the path cache behaves sanely.
    >>> elem = ET.XML(SAMPLE_XML)
    >>> for i in range(10): ET.ElementTree(elem).find('./'+str(i))
    >>> cache_len_10 = len(ET.ElementPath._cache)
    >>> for i in range(10): ET.ElementTree(elem).find('./'+str(i))
    >>> len(ET.ElementPath._cache) == cache_len_10
    True
    >>> for i in range(20): ET.ElementTree(elem).find('./'+str(i))
    >>> len(ET.ElementPath._cache) > cache_len_10
    True
    >>> for i in range(600): ET.ElementTree(elem).find('./'+str(i))
    >>> len(ET.ElementPath._cache) < 500
    True
    """
def copy():
    """
    Test copy handling (etc).
    >>> import copy
    >>> e1 = ET.XML("hello ")
    >>> e2 = copy.copy(e1)
    >>> e3 = copy.deepcopy(e1)
    >>> e1.find("foo").tag = "bar"
    >>> serialize(e1)
    'hello '
    >>> serialize(e2)
    'hello '
    >>> serialize(e3)
    'hello '
    """
def attrib():
    """
    Test attribute handling.
    >>> elem = ET.Element("tag")
    >>> elem.get("key") # 1.1
    >>> elem.get("key", "default") # 1.2
    'default'
    >>> elem.set("key", "value")
    >>> elem.get("key") # 1.3
    'value'
    >>> elem = ET.Element("tag", key="value")
    >>> elem.get("key") # 2.1
    'value'
    >>> elem.attrib # 2.2
    {'key': 'value'}
    >>> attrib = {"key": "value"}
    >>> elem = ET.Element("tag", attrib)
    >>> attrib.clear() # check for aliasing issues
    >>> elem.get("key") # 3.1
    'value'
    >>> elem.attrib # 3.2
    {'key': 'value'}
    >>> attrib = {"key": "value"}
    >>> elem = ET.Element("tag", **attrib)
    >>> attrib.clear() # check for aliasing issues
    >>> elem.get("key") # 4.1
    'value'
    >>> elem.attrib # 4.2
    {'key': 'value'}
    >>> elem = ET.Element("tag", {"key": "other"}, key="value")
    >>> elem.get("key") # 5.1
    'value'
    >>> elem.attrib # 5.2
    {'key': 'value'}
    >>> elem = ET.Element('test')
    >>> elem.text = "aa"
    >>> elem.set('testa', 'testval')
    >>> elem.set('testb', 'test2')
    >>> ET.tostring(elem)
    b'aa '
    >>> sorted(elem.keys())
    ['testa', 'testb']
    >>> sorted(elem.items())
    [('testa', 'testval'), ('testb', 'test2')]
    >>> elem.attrib['testb']
    'test2'
    >>> elem.attrib['testb'] = 'test1'
    >>> elem.attrib['testc'] = 'test2'
    >>> ET.tostring(elem)
    b'aa '
    """
def makeelement():
    """
    Test makeelement handling.
    >>> elem = ET.Element("tag")
    >>> attrib = {"key": "value"}
    >>> subelem = elem.makeelement("subtag", attrib)
    >>> if subelem.attrib is attrib:
    ...     print("attrib aliasing")
    >>> elem.append(subelem)
    >>> serialize(elem)
    '
       text 
       text tail
        
    >>> tree = ET.parse(SIMPLE_NS_XMLFILE)
    >>> normalize_crlf(tree)
    >>> tree.write(sys.stdout, encoding='unicode')
    
       text 
       text tail
        
    >>> parser = ET.XMLParser()
    >>> parser.version  # doctest: +ELLIPSIS
    'Expat ...'
    >>> parser.feed(open(SIMPLE_XMLFILE).read())
    >>> print(serialize(parser.close()))
    
       text 
       text tail
        
    >>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
    >>> parser.feed(open(SIMPLE_XMLFILE).read())
    >>> print(serialize(parser.close()))
    
       text 
       text tail
        
    >>> target = ET.TreeBuilder()
    >>> parser = ET.XMLParser(target=target)
    >>> parser.feed(open(SIMPLE_XMLFILE).read())
    >>> print(serialize(parser.close()))
    
       text 
       text tail
        
    """
def parseliteral():
    """
    >>> element = ET.XML("text")
    >>> ET.ElementTree(element).write(sys.stdout, encoding='unicode')
    text
    >>> element = ET.fromstring("text")
    >>> ET.ElementTree(element).write(sys.stdout, encoding='unicode')
    text
    >>> sequence = ["", "text"]
    >>> element = ET.fromstringlist(sequence)
    >>> ET.tostring(element)
    b'text'
    >>> b"".join(ET.tostringlist(element))
    b'text'
    >>> ET.tostring(element, "ascii")
    b"\\ntext"
    >>> _, ids = ET.XMLID("text")
    >>> len(ids)
    0
    >>> _, ids = ET.XMLID("text")
    >>> len(ids)
    1
    >>> ids["body"].tag
    'body'
    """
def iterparse():
    """
    Test iterparse interface.
    >>> iterparse = ET.iterparse
    >>> context = iterparse(SIMPLE_XMLFILE)
    >>> action, elem = next(context)
    >>> print(action, elem.tag)
    end element
    >>> for action, elem in context:
    ...   print(action, elem.tag)
    end element
    end empty-element
    end root
    >>> context.root.tag
    'root'
    >>> context = iterparse(SIMPLE_NS_XMLFILE)
    >>> for action, elem in context:
    ...   print(action, elem.tag)
    end {namespace}element
    end {namespace}element
    end {namespace}empty-element
    end {namespace}root
    >>> events = ()
    >>> context = iterparse(SIMPLE_XMLFILE, events)
    >>> for action, elem in context:
    ...   print(action, elem.tag)
    >>> events = ()
    >>> context = iterparse(SIMPLE_XMLFILE, events=events)
    >>> for action, elem in context:
    ...   print(action, elem.tag)
    >>> events = ("start", "end")
    >>> context = iterparse(SIMPLE_XMLFILE, events)
    >>> for action, elem in context:
    ...   print(action, elem.tag)
    start root
    start element
    end element
    start element
    end element
    start empty-element
    end empty-element
    end root
    >>> events = ("start", "end", "start-ns", "end-ns")
    >>> context = iterparse(SIMPLE_NS_XMLFILE, events)
    >>> for action, elem in context:
    ...   if action in ("start", "end"):
    ...     print(action, elem.tag)
    ...   else:
    ...     print(action, elem)
    start-ns ('', 'namespace')
    start {namespace}root
    start {namespace}element
    end {namespace}element
    start {namespace}element
    end {namespace}element
    start {namespace}empty-element
    end {namespace}empty-element
    end {namespace}root
    end-ns None
    >>> events = ("start", "end", "bogus")
    >>> context = iterparse(SIMPLE_XMLFILE, events)
    Traceback (most recent call last):
    ValueError: unknown event 'bogus'
    >>> import io
    >>> source = io.BytesIO(
    ...     b"\\n"
    ...     b"text\\n")
    >>> events = ("start-ns",)
    >>> context = iterparse(source, events)
    >>> for action, elem in context:
    ...     print(action, elem)
    start-ns ('', 'http://\\xe9ffbot.org/ns')
    start-ns ('cl\\xe9', 'http://effbot.org/ns')
    >>> source = io.StringIO("text '
    >>> ET.SubElement(elem, "subtag").text = "subtext"
    >>> serialize(elem)
    'textsubtext  '
    Test tag suppression
    >>> elem.tag = None
    >>> serialize(elem)
    'textsubtext '
    >>> elem.insert(0, ET.Comment("comment"))
    >>> serialize(elem)     # assumes 1.3
    'textsubtext '
    >>> elem[0] = ET.PI("key", "value")
    >>> serialize(elem)
    'textsubtext '
    """
def custom_builder():
    """
    Test parser w. custom builder.
    >>> class Builder:
    ...     def start(self, tag, attrib):
    ...         print("start", tag)
    ...     def end(self, tag):
    ...         print("end", tag)
    ...     def data(self, text):
    ...         pass
    >>> builder = Builder()
    >>> parser = ET.XMLParser(target=builder)
    >>> parser.feed(open(SIMPLE_XMLFILE, "r").read())
    start root
    start element
    end element
    start element
    end element
    start empty-element
    end empty-element
    end root
    >>> class Builder:
    ...     def start(self, tag, attrib):
    ...         print("start", tag)
    ...     def end(self, tag):
    ...         print("end", tag)
    ...     def data(self, text):
    ...         pass
    ...     def pi(self, target, data):
    ...         print("pi", target, repr(data))
    ...     def comment(self, data):
    ...         print("comment", repr(data))
    >>> builder = Builder()
    >>> parser = ET.XMLParser(target=builder)
    >>> parser.feed(open(SIMPLE_NS_XMLFILE, "r").read())
    pi pi 'data'
    comment ' comment '
    start {namespace}root
    start {namespace}element
    end {namespace}element
    start {namespace}element
    end {namespace}element
    start {namespace}empty-element
    end {namespace}empty-element
    end {namespace}root
    """
def getchildren():
    """
    Test Element.getchildren()
    >>> tree = ET.parse(open(SIMPLE_XMLFILE, "rb"))
    >>> for elem in tree.getroot().iter():
    ...     summarize_list(elem.getchildren())
    ['element', 'element', 'empty-element']
    []
    []
    []
    >>> for elem in tree.getiterator():
    ...     summarize_list(elem.getchildren())
    ['element', 'element', 'empty-element']
    []
    []
    []
    >>> elem = ET.XML(SAMPLE_XML)
    >>> len(elem.getchildren())
    3
    >>> len(elem[2].getchildren())
    1
    >>> elem[:] == elem.getchildren()
    True
    >>> child1 = elem[0]
    >>> child2 = elem[2]
    >>> del elem[1:2]
    >>> len(elem.getchildren())
    2
    >>> child1 == elem[0]
    True
    >>> child2 == elem[1]
    True
    >>> elem[0:2] = [child2, child1]
    >>> child2 == elem[0]
    True
    >>> child1 == elem[1]
    True
    >>> child1 == elem[0]
    False
    >>> elem.clear()
    >>> elem.getchildren()
    []
    """
def writestring():
    """
    >>> elem = ET.XML("text")
    >>> ET.tostring(elem)
    b'text'
    >>> elem = ET.fromstring("text")
    >>> ET.tostring(elem)
    b'text'
    """
def check_encoding(encoding):
    """
    >>> check_encoding("ascii")
    >>> check_encoding("us-ascii")
    >>> check_encoding("iso-8859-1")
    >>> check_encoding("iso-8859-15")
    >>> check_encoding("cp437")
    >>> check_encoding("mac-roman")
    """
    ET.XML("abc '
    >>> serialize(elem, encoding="utf-8")
    b'abc '
    >>> serialize(elem, encoding="us-ascii")
    b'abc '
    >>> serialize(elem, encoding="iso-8859-1")
    b"\nabc "
    >>> elem.text = "<&\"\'>"
    >>> serialize(elem)
    '<&"\'> '
    >>> serialize(elem, encoding="utf-8")
    b'<&"\'> '
    >>> serialize(elem, encoding="us-ascii") # cdata characters
    b'<&"\'> '
    >>> serialize(elem, encoding="iso-8859-1")
    b'\n<&"\'> '
    >>> elem.attrib["key"] = "<&\"\'>"
    >>> elem.text = None
    >>> serialize(elem)
    '\xe5\xf6\xf6<> '
    >>> serialize(elem, encoding="utf-8")
    b'\xc3\xa5\xc3\xb6\xc3\xb6<> '
    >>> serialize(elem, encoding="us-ascii")
    b'åöö<> '
    >>> serialize(elem, encoding="iso-8859-1")
    b"\n\xe5\xf6\xf6<> "
    >>> elem.attrib["key"] = '\xe5\xf6\xf6<>'
    >>> elem.text = None
    >>> serialize(elem)
    'paragraph ...")
    >>> summarize_list(e.iter())
    ['html', 'body', 'i']
    >>> summarize_list(e.find("body").iter())
    ['body', 'i']
    >>> summarize(next(e.iter()))
    'html'
    >>> "".join(e.itertext())
    'this is a paragraph...'
    >>> "".join(e.find("body").itertext())
    'this is a paragraph.'
    >>> next(e.itertext())
    'this is a '
    Method iterparse should return an iterator. See bug 6472.
    >>> sourcefile = serialize(e, to_string=False)
    >>> next(ET.iterparse(sourcefile))  # doctest: +ELLIPSIS
    ('end', )
    >>> tree = ET.ElementTree(None)
    >>> tree.iter()
    Traceback (most recent call last):
    AttributeError: 'NoneType' object has no attribute 'iter'
    """
ENTITY_XML = """\
%user-entities;
]>
&entity; 
"""
def entity():
    """
    Test entity handling.
    1) good entities
    >>> e = ET.XML("test ")
    >>> serialize(e, encoding="us-ascii")
    b'test '
    >>> serialize(e)
    'test '
    2) bad entities
    >>> normalize_exception(ET.XML, "&entity; ")
    Traceback (most recent call last):
    ParseError: undefined entity: line 1, column 10
    >>> normalize_exception(ET.XML, ENTITY_XML)
    Traceback (most recent call last):
    ParseError: undefined entity &entity;: line 5, column 10
    3) custom entity
    >>> parser = ET.XMLParser()
    >>> parser.entity["entity"] = "text"
    >>> parser.feed(ENTITY_XML)
    >>> root = parser.close()
    >>> serialize(root)
    'text '
    """
def error(xml):
    """
    Test error handling.
    >>> issubclass(ET.ParseError, SyntaxError)
    True
    >>> error("foo").position
    (1, 0)
    >>> error("&foo; ").position
    (1, 5)
    >>> error("foobar<").position
    (1, 6)
    """
    try:
        ET.XML(xml)
    except ET.ParseError:
        return sys.exc_info()[1]
def namespace():
    """
    Test namespace issues.
    1) xml namespace
    >>> elem = ET.XML("
      text 
      
        subtext 
       
     
    """
def qname():
    """
    Test QName handling.
    1) decorated tags
    >>> elem = ET.Element("{uri}tag")
    >>> serialize(elem) # 1.1
    ''))
    b'?>'
    >>> ET.tostring(ET.PI('test', '\xe3'), 'latin1')
    b"\\n\\xe3?>"
    """
#
# xinclude tests (samples from appendix C of the xinclude specification)
XINCLUDE = {}
XINCLUDE["C1.xml"] = """\
  120 Mz is adequate for an average home user.
   
"""
XINCLUDE["disclaimer.xml"] = """\
  The opinions represented herein represent those of the individual
  and should not be interpreted as official policy endorsed by this
  organization.
 
"""
XINCLUDE["C2.xml"] = """\
  This document has been accessed
  
 
"""
XINCLUDE["count.txt"] = "324387"
XINCLUDE["C2b.xml"] = """\
  This document has been accessed 
  
 
"""
XINCLUDE["C3.xml"] = """\
  The following is the source of the "data.xml" resource:
   
"""
XINCLUDE["data.xml"] = """\
  
 
"""
XINCLUDE["C5.xml"] = """\
"""
XINCLUDE["default.xml"] = """\
  Example.
   
""".format(cgi.escape(SIMPLE_XMLFILE, True))
def xinclude_loader(href, parse="xml", encoding=None):
    try:
        data = XINCLUDE[href]
    except KeyError:
        raise IOError("resource not found")
    if parse == "xml":
        from xml.etree.ElementTree import XML
        return XML(data)
    return data
def xinclude():
    r"""
    Basic inclusion example (XInclude C.1)
    >>> from xml.etree import ElementTree as ET
    >>> from xml.etree import ElementInclude
    >>> document = xinclude_loader("C1.xml")
    >>> ElementInclude.include(document, xinclude_loader)
    >>> print(serialize(document)) # C1
    
      120 Mz is adequate for an average home user.
      
      The opinions represented herein represent those of the individual
      and should not be interpreted as official policy endorsed by this
      organization.
     
     
    Textual inclusion example (XInclude C.2)
    >>> document = xinclude_loader("C2.xml")
    >>> ElementInclude.include(document, xinclude_loader)
    >>> print(serialize(document)) # C2
    
      This document has been accessed
      324387 times.
     
    Textual inclusion after sibling element (based on modified XInclude C.2)
    >>> document = xinclude_loader("C2b.xml")
    >>> ElementInclude.include(document, xinclude_loader)
    >>> print(serialize(document)) # C2b
    
      This document has been accessed 
      324387 times.
     
    Textual inclusion of XML example (XInclude C.3)
    >>> document = xinclude_loader("C3.xml")
    >>> ElementInclude.include(document, xinclude_loader)
    >>> print(serialize(document)) # C3
    
      The following is the source of the "data.xml" resource:
      <?xml version='1.0'?>
    <data>
      <item><![CDATA[Brooks & Shields]]></item>
    </data>
     
     
    Fallback example (XInclude C.5)
    Note! Fallback support is not yet implemented
    >>> document = xinclude_loader("C5.xml")
    >>> ElementInclude.include(document, xinclude_loader)
    Traceback (most recent call last):
    IOError: resource not found
    >>> # print(serialize(document)) # C5
    """
def xinclude_default():
    """
    >>> from xml.etree import ElementInclude
    >>> document = xinclude_loader("default.xml")
    >>> ElementInclude.include(document)
    >>> print(serialize(document)) # default
    
      Example.
      
       text 
       text tail
        
     
    """
#
# badly formatted xi:include tags
XINCLUDE_BAD = {}
XINCLUDE_BAD["B1.xml"] = """\
  120 Mz is adequate for an average home user.
   
"""
XINCLUDE_BAD["B2.xml"] = """\
    
"""
def xinclude_failures():
    r"""
    Test failure to locate included XML file.
    >>> from xml.etree import ElementInclude
    >>> def none_loader(href, parser, encoding=None):
    ...     return None
    >>> document = ET.XML(XINCLUDE["C1.xml"])
    >>> ElementInclude.include(document, loader=none_loader)
    Traceback (most recent call last):
    xml.etree.ElementInclude.FatalIncludeError: cannot load 'disclaimer.xml' as 'xml'
    Test failure to locate included text file.
    >>> document = ET.XML(XINCLUDE["C2.xml"])
    >>> ElementInclude.include(document, loader=none_loader)
    Traceback (most recent call last):
    xml.etree.ElementInclude.FatalIncludeError: cannot load 'count.txt' as 'text'
    Test bad parse type.
    >>> document = ET.XML(XINCLUDE_BAD["B1.xml"])
    >>> ElementInclude.include(document, loader=none_loader)
    Traceback (most recent call last):
    xml.etree.ElementInclude.FatalIncludeError: unknown parse type in xi:include tag ('BAD_TYPE')
    Test xi:fallback outside xi:include.
    >>> document = ET.XML(XINCLUDE_BAD["B2.xml"])
    >>> ElementInclude.include(document, loader=none_loader)
    Traceback (most recent call last):
    xml.etree.ElementInclude.FatalIncludeError: xi:fallback tag must be child of xi:include ('{http://www.w3.org/2001/XInclude}fallback')
    """
# --------------------------------------------------------------------
# reported bugs
def bug_xmltoolkit21():
    """
    marshaller gives obscure errors for non-string values
    >>> elem = ET.Element(123)
    >>> serialize(elem) # tag
    Traceback (most recent call last):
    TypeError: cannot serialize 123 (type int)
    >>> elem = ET.Element("elem")
    >>> elem.text = 123
    >>> serialize(elem) # text
    Traceback (most recent call last):
    TypeError: cannot serialize 123 (type int)
    >>> elem = ET.Element("elem")
    >>> elem.tail = 123
    >>> serialize(elem) # tail
    Traceback (most recent call last):
    TypeError: cannot serialize 123 (type int)
    >>> elem = ET.Element("elem")
    >>> elem.set(123, "123")
    >>> serialize(elem) # attribute key
    Traceback (most recent call last):
    TypeError: cannot serialize 123 (type int)
    >>> elem = ET.Element("elem")
    >>> elem.set("123", 123)
    >>> serialize(elem) # attribute value
    Traceback (most recent call last):
    TypeError: cannot serialize 123 (type int)
    """
def bug_xmltoolkit25():
    """
    typo in ElementTree.findtext
    >>> elem = ET.XML(SAMPLE_XML)
    >>> tree = ET.ElementTree(elem)
    >>> tree.findtext("tag")
    'text'
    >>> tree.findtext("section/tag")
    'subtext'
    """
def bug_xmltoolkit28():
    """
    .//tag causes exceptions
    >>> tree = ET.XML("text ")
    >>> ET.tostring(tree, "utf-8")
    b'text '
    >>> tree = ET.Element("t\u00e4g")
    >>> ET.tostring(tree, "utf-8")
    b'&ldots; ")
    >>> serialize(e, encoding="us-ascii")
    b'舰 '
    >>> serialize(e)
    '\u8230 '
    """
def bug_xmltoolkit55():
    """
    make sure we're reporting the first error, not the last
    >>> normalize_exception(ET.XML, b"&ldots;&ndots;&rdots; ")
    Traceback (most recent call last):
    ParseError: undefined entity &ldots;: line 1, column 36
    """
class ExceptionFile:
    def read(self, x):
        raise IOError
def xmltoolkit60():
    """
    Handle crash in stream source.
    >>> tree = ET.parse(ExceptionFile())
    Traceback (most recent call last):
    IOError
    """
XMLTOOLKIT62_DOC = """
A new cultivar of Begonia plant named ‘BCT9801BEG’. 
 
 """
def xmltoolkit62():
    """
    Don't crash when using custom entities.
    >>> xmltoolkit62()
    'A new cultivar of Begonia plant named \u2018BCT9801BEG\u2019.'
    """
    ENTITIES = {'rsquo': '\u2019', 'lsquo': '\u2018'}
    parser = ET.XMLTreeBuilder()
    parser.entity.update(ENTITIES)
    parser.feed(XMLTOOLKIT62_DOC)
    t = parser.close()
    return t.find('.//paragraph').text
def xmltoolkit63():
    """
    Check reference leak.
    >>> xmltoolkit63()
    >>> count = sys.getrefcount(None)
    >>> for i in range(1000):
    ...     xmltoolkit63()
    >>> sys.getrefcount(None) - count
    0
    """
    tree = ET.TreeBuilder()
    tree.start("tag", {})
    tree.data("text")
    tree.end("tag")
# --------------------------------------------------------------------
def bug_200708_newline():
    r"""
    Preserve newlines in attributes.
    >>> e = ET.Element('SomeTag', text="def _f():\n  return 3\n")
    >>> ET.tostring(e)
    b'some text ")
    >>> summarize(parser.close())
    'element'
    Test custom builder.
    >>> class EchoTarget:
    ...     def close(self):
    ...         return ET.Element("element") # simulate root
    >>> parser = ET.XMLParser(EchoTarget())
    >>> parser.feed("some text ")
    >>> summarize(parser.close())
    'element'
    """
def bug_200709_default_namespace():
    """
    >>> e = ET.Element("{default}elem")
    >>> s = ET.SubElement(e, "{default}elem")
    >>> serialize(e, default_namespace="default") # 1
    '']
    """
# --------------------------------------------------------------------
# reported on bugs.python.org
def bug_1534630():
    """
    >>> bob = ET.TreeBuilder()
    >>> e = bob.data("data")
    >>> e = bob.start("tag", {})
    >>> e = bob.end("tag")
    >>> e = bob.close()
    >>> serialize(e)
    '