# 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.
#
# PLEASE write all new tests using the standard unittest infrastructure and
# not doctest.
#
# IMPORTANT: the same tests 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 html
import io
import sys
import unittest
import weakref
from test import support
from test.support import findfile, import_fresh_module, gc_collect
pyET = import_fresh_module('xml.etree.ElementTree', blocked=['_elementtree'])
SIMPLE_XMLFILE = findfile("simple.xml", subdir="xmltestdata")
try:
SIMPLE_XMLFILE.encode("utf-8")
except UnicodeEncodeError:
raise unittest.SkipTest("filename is not encodable to utf8")
SIMPLE_NS_XMLFILE = findfile("simple-ns.xml", subdir="xmltestdata")
SAMPLE_XML = """\
textsubtext
"""
SAMPLE_SECTION = """\
subtext
"""
SAMPLE_XML_NS = """
textsubtext
"""
SAMPLE_XML_NS_ELEMS = """
ApplesBananasAfrican Coffee Table80120
"""
def sanity():
"""
Import sanity.
>>> from xml.etree import ElementTree
>>> from xml.etree import ElementInclude
>>> from xml.etree import ElementPath
"""
def check_method(method):
if not hasattr(method, '__call__'):
print(method, "not callable")
def serialize(elem, to_string=True, encoding='unicode', **options):
import io
if encoding != 'unicode':
file = io.BytesIO()
else:
file = io.StringIO()
tree = ET.ElementTree(elem)
tree.write(file, encoding=encoding, **options)
if to_string:
return file.getvalue()
else:
file.seek(0)
return file
def summarize(elem):
if elem.tag == ET.Comment:
return ""
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("")
>>> serialize(elem)
''
>>> e = ET.Element("tag2")
>>> elem.append(e)
>>> serialize(elem)
''
>>> elem.remove(e)
>>> serialize(elem)
''
>>> elem.insert(0, e)
>>> serialize(elem)
''
>>> elem.remove(e)
>>> elem.extend([e])
>>> serialize(elem)
''
>>> elem.remove(e)
>>> element = ET.Element("tag", key="value")
>>> serialize(element) # 1
''
>>> subelement = ET.Element("subtag")
>>> element.append(subelement)
>>> serialize(element) # 2
''
>>> element.insert(0, subelement)
>>> serialize(element) # 3
''
>>> element.remove(subelement)
>>> serialize(element) # 4
''
>>> element.remove(subelement)
>>> serialize(element) # 5
''
>>> element.remove(subelement)
Traceback (most recent call last):
ValueError: list.remove(x): x not in list
>>> serialize(element) # 6
''
>>> element[0:0] = [subelement, subelement, subelement]
>>> serialize(element[1])
''
>>> element[1:9] == [element[1], element[2]]
True
>>> element[:9:2] == [element[0], element[2]]
True
>>> del element[1:2]
>>> serialize(element)
''
"""
def cdata():
"""
Test CDATA handling (etc).
>>> serialize(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.
>>> ElementTree = pyET
>>> 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.
>>> from xml.etree import ElementPath
>>> elem = ET.XML(SAMPLE_XML)
>>> for i in range(10): ET.ElementTree(elem).find('./'+str(i))
>>> cache_len_10 = len(ElementPath._cache)
>>> for i in range(10): ET.ElementTree(elem).find('./'+str(i))
>>> len(ElementPath._cache) == cache_len_10
True
>>> for i in range(20): ET.ElementTree(elem).find('./'+str(i))
>>> len(ElementPath._cache) > cache_len_10
True
>>> for i in range(600): ET.ElementTree(elem).find('./'+str(i))
>>> len(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)
''
>>> elem.clear()
>>> serialize(elem)
''
>>> elem.append(subelem)
>>> serialize(elem)
''
>>> elem.extend([subelem, subelem])
>>> serialize(elem)
''
>>> elem[:] = [subelem]
>>> serialize(elem)
''
>>> elem[:] = tuple([subelem])
>>> serialize(elem)
''
"""
def parsefile():
"""
Test parsing from file.
>>> tree = ET.parse(SIMPLE_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout, encoding='unicode')
texttexttail
>>> tree = ET.parse(SIMPLE_NS_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout, encoding='unicode')
texttexttail
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> parser = ET.XMLParser()
>>> parser.version # doctest: +ELLIPSIS
'Expat ...'
>>> parser.feed(data)
>>> print(serialize(parser.close()))
texttexttail
>>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
>>> parser.feed(data)
>>> print(serialize(parser.close()))
texttexttail
>>> target = ET.TreeBuilder()
>>> parser = ET.XMLParser(target=target)
>>> parser.feed(data)
>>> print(serialize(parser.close()))
texttexttail
"""
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")
>>> with open(SIMPLE_XMLFILE, "rb") as f:
... iterparse(f, 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("junk")
>>> try:
... for action, elem in iterparse(source):
... print(action, elem.tag)
... except ET.ParseError as v:
... print(v)
end document
junk after document element: line 1, column 12
"""
def writefile():
"""
>>> elem = ET.Element("tag")
>>> elem.text = "text"
>>> serialize(elem)
'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.
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> 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(data)
start root
start element
end element
start element
end element
start empty-element
end empty-element
end root
>>> with open(SIMPLE_NS_XMLFILE) as f:
... data = f.read()
>>> 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(data)
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()
>>> with open(SIMPLE_XMLFILE, "rb") as f:
... tree = ET.parse(f)
>>> 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("" % encoding)
def encoding():
r"""
Test encoding issues.
>>> elem = ET.Element("tag")
>>> elem.text = "abc"
>>> serialize(elem)
'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)
''
>>> serialize(elem, encoding="utf-8")
b''
>>> serialize(elem, encoding="us-ascii")
b''
>>> serialize(elem, encoding="iso-8859-1")
b'\n'
>>> elem.text = '\xe5\xf6\xf6<>'
>>> elem.attrib.clear()
>>> 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)
''
>>> serialize(elem, encoding="utf-8")
b''
>>> serialize(elem, encoding="us-ascii")
b''
>>> serialize(elem, encoding="iso-8859-1")
b'\n'
"""
def methods():
r"""
Test serialization methods.
>>> e = ET.XML("")
>>> e.tail = "\n"
>>> serialize(e)
'\n'
>>> serialize(e, method=None)
'\n'
>>> serialize(e, method="xml")
'\n'
>>> serialize(e, method="html")
'\n'
>>> serialize(e, method="text")
'1 < 2\n'
"""
def iterators():
"""
Test iterators.
>>> e = ET.XML("this is a 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 namespace():
"""
Test namespace issues.
1) xml namespace
>>> elem = ET.XML("")
>>> serialize(elem) # 1.1
''
2) other "well-known" namespaces
>>> elem = ET.XML("")
>>> serialize(elem) # 2.1
''
>>> elem = ET.XML("")
>>> serialize(elem) # 2.2
''
>>> elem = ET.XML("")
>>> serialize(elem) # 2.3
''
3) unknown namespaces
>>> elem = ET.XML(SAMPLE_XML_NS)
>>> print(serialize(elem))
textsubtext
"""
def qname():
"""
Test QName handling.
1) decorated tags
>>> elem = ET.Element("{uri}tag")
>>> serialize(elem) # 1.1
''
>>> elem = ET.Element(ET.QName("{uri}tag"))
>>> serialize(elem) # 1.2
''
>>> elem = ET.Element(ET.QName("uri", "tag"))
>>> serialize(elem) # 1.3
''
>>> elem = ET.Element(ET.QName("uri", "tag"))
>>> subelem = ET.SubElement(elem, ET.QName("uri", "tag1"))
>>> subelem = ET.SubElement(elem, ET.QName("uri", "tag2"))
>>> serialize(elem) # 1.4
''
2) decorated attributes
>>> elem.clear()
>>> elem.attrib["{uri}key"] = "value"
>>> serialize(elem) # 2.1
''
>>> elem.clear()
>>> elem.attrib[ET.QName("{uri}key")] = "value"
>>> serialize(elem) # 2.2
''
3) decorated values are not converted by default, but the
QName wrapper can be used for values
>>> elem.clear()
>>> elem.attrib["{uri}key"] = "{uri}value"
>>> serialize(elem) # 3.1
''
>>> elem.clear()
>>> elem.attrib["{uri}key"] = ET.QName("{uri}value")
>>> serialize(elem) # 3.2
''
>>> elem.clear()
>>> subelem = ET.Element("tag")
>>> subelem.attrib["{uri1}key"] = ET.QName("{uri2}value")
>>> elem.append(subelem)
>>> elem.append(subelem)
>>> serialize(elem) # 3.3
''
4) Direct QName tests
>>> str(ET.QName('ns', 'tag'))
'{ns}tag'
>>> str(ET.QName('{ns}tag'))
'{ns}tag'
>>> q1 = ET.QName('ns', 'tag')
>>> q2 = ET.QName('ns', 'tag')
>>> q1 == q2
True
>>> q2 = ET.QName('ns', 'other-tag')
>>> q1 == q2
False
>>> q1 == 'ns:tag'
False
>>> q1 == '{ns}tag'
True
"""
def doctype_public():
"""
Test PUBLIC doctype.
>>> elem = ET.XML(''
... 'text')
"""
def xpath_tokenizer(p):
"""
Test the XPath tokenizer.
>>> # tests from the xml specification
>>> xpath_tokenizer("*")
['*']
>>> xpath_tokenizer("text()")
['text', '()']
>>> xpath_tokenizer("@name")
['@', 'name']
>>> xpath_tokenizer("@*")
['@', '*']
>>> xpath_tokenizer("para[1]")
['para', '[', '1', ']']
>>> xpath_tokenizer("para[last()]")
['para', '[', 'last', '()', ']']
>>> xpath_tokenizer("*/para")
['*', '/', 'para']
>>> xpath_tokenizer("/doc/chapter[5]/section[2]")
['/', 'doc', '/', 'chapter', '[', '5', ']', '/', 'section', '[', '2', ']']
>>> xpath_tokenizer("chapter//para")
['chapter', '//', 'para']
>>> xpath_tokenizer("//para")
['//', 'para']
>>> xpath_tokenizer("//olist/item")
['//', 'olist', '/', 'item']
>>> xpath_tokenizer(".")
['.']
>>> xpath_tokenizer(".//para")
['.', '//', 'para']
>>> xpath_tokenizer("..")
['..']
>>> xpath_tokenizer("../@lang")
['..', '/', '@', 'lang']
>>> xpath_tokenizer("chapter[title]")
['chapter', '[', 'title', ']']
>>> xpath_tokenizer("employee[@secretary and @assistant]")
['employee', '[', '@', 'secretary', '', 'and', '', '@', 'assistant', ']']
>>> # additional tests
>>> xpath_tokenizer("{http://spam}egg")
['{http://spam}egg']
>>> xpath_tokenizer("./spam.egg")
['.', '/', 'spam.egg']
>>> xpath_tokenizer(".//{http://spam}egg")
['.', '//', '{http://spam}egg']
"""
from xml.etree import ElementPath
out = []
for op, tag in ElementPath.xpath_tokenizer(p):
out.append(op or tag)
return out
def processinginstruction():
"""
Test ProcessingInstruction directly
>>> ET.tostring(ET.ProcessingInstruction('test', 'instruction'))
b''
>>> ET.tostring(ET.PI('test', 'instruction'))
b''
Issue #2746
>>> ET.tostring(ET.PI('test', ''))
b'?>'
>>> ET.tostring(ET.PI('test', '\xe3'), 'latin-1')
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.