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# regression test for SAX 2.0 -*- coding: iso-8859-1 -*-
# $Id: test_sax.py 54954 2007-04-25 06:42:41Z neal.norwitz $
from xml.sax import make_parser, ContentHandler, \
SAXException, SAXReaderNotAvailable, SAXParseException
try:
make_parser()
except SAXReaderNotAvailable:
# don't try to test this module if we cannot create a parser
raise ImportError("no XML parsers available")
from xml.sax.saxutils import XMLGenerator, escape, unescape, quoteattr, \
XMLFilterBase
from xml.sax.expatreader import create_parser
from xml.sax.xmlreader import InputSource, AttributesImpl, AttributesNSImpl
from cStringIO import StringIO
from test.test_support import verify, verbose, TestFailed, findfile
import os
# ===== Utilities
tests = 0
failures = []
def confirm(outcome, name):
global tests
tests = tests + 1
if outcome:
if verbose:
print "Passed", name
else:
failures.append(name)
def test_make_parser2():
try:
# Creating parsers several times in a row should succeed.
# Testing this because there have been failures of this kind
# before.
from xml.sax import make_parser
p = make_parser()
from xml.sax import make_parser
p = make_parser()
from xml.sax import make_parser
p = make_parser()
from xml.sax import make_parser
p = make_parser()
from xml.sax import make_parser
p = make_parser()
from xml.sax import make_parser
p = make_parser()
except:
return 0
else:
return p
# ===========================================================================
#
# saxutils tests
#
# ===========================================================================
# ===== escape
def test_escape_basic():
return escape("Donald Duck & Co") == "Donald Duck & Co"
def test_escape_all():
return escape("<Donald Duck & Co>") == "<Donald Duck & Co>"
def test_escape_extra():
return escape("Hei på deg", {"å" : "å"}) == "Hei på deg"
# ===== unescape
def test_unescape_basic():
return unescape("Donald Duck & Co") == "Donald Duck & Co"
def test_unescape_all():
return unescape("<Donald Duck & Co>") == "<Donald Duck & Co>"
def test_unescape_extra():
return unescape("Hei på deg", {"å" : "å"}) == "Hei på deg"
def test_unescape_amp_extra():
return unescape("&foo;", {"&foo;": "splat"}) == "&foo;"
# ===== quoteattr
def test_quoteattr_basic():
return quoteattr("Donald Duck & Co") == '"Donald Duck & Co"'
def test_single_quoteattr():
return (quoteattr('Includes "double" quotes')
== '\'Includes "double" quotes\'')
def test_double_quoteattr():
return (quoteattr("Includes 'single' quotes")
== "\"Includes 'single' quotes\"")
def test_single_double_quoteattr():
return (quoteattr("Includes 'single' and \"double\" quotes")
== "\"Includes 'single' and "double" quotes\"")
# ===== make_parser
def test_make_parser():
try:
# Creating a parser should succeed - it should fall back
# to the expatreader
p = make_parser(['xml.parsers.no_such_parser'])
except:
return 0
else:
return p
# ===== XMLGenerator
start = '<?xml version="1.0" encoding="iso-8859-1"?>\n'
def test_xmlgen_basic():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startElement("doc", {})
gen.endElement("doc")
gen.endDocument()
return result.getvalue() == start + "<doc></doc>"
def test_xmlgen_content():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startElement("doc", {})
gen.characters("huhei")
gen.endElement("doc")
gen.endDocument()
return result.getvalue() == start + "<doc>huhei</doc>"
def test_xmlgen_pi():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.processingInstruction("test", "data")
gen.startElement("doc", {})
gen.endElement("doc")
gen.endDocument()
return result.getvalue() == start + "<?test data?><doc></doc>"
def test_xmlgen_content_escape():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startElement("doc", {})
gen.characters("<huhei&")
gen.endElement("doc")
gen.endDocument()
return result.getvalue() == start + "<doc><huhei&</doc>"
def test_xmlgen_attr_escape():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startElement("doc", {"a": '"'})
gen.startElement("e", {"a": "'"})
gen.endElement("e")
gen.startElement("e", {"a": "'\""})
gen.endElement("e")
gen.startElement("e", {"a": "\n\r\t"})
gen.endElement("e")
gen.endElement("doc")
gen.endDocument()
return result.getvalue() == start + ("<doc a='\"'><e a=\"'\"></e>"
"<e a=\"'"\"></e>"
"<e a=\" 	\"></e></doc>")
def test_xmlgen_ignorable():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startElement("doc", {})
gen.ignorableWhitespace(" ")
gen.endElement("doc")
gen.endDocument()
return result.getvalue() == start + "<doc> </doc>"
ns_uri = "http://www.python.org/xml-ns/saxtest/"
def test_xmlgen_ns():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startPrefixMapping("ns1", ns_uri)
gen.startElementNS((ns_uri, "doc"), "ns1:doc", {})
# add an unqualified name
gen.startElementNS((None, "udoc"), None, {})
gen.endElementNS((None, "udoc"), None)
gen.endElementNS((ns_uri, "doc"), "ns1:doc")
gen.endPrefixMapping("ns1")
gen.endDocument()
return result.getvalue() == start + \
('<ns1:doc xmlns:ns1="%s"><udoc></udoc></ns1:doc>' %
ns_uri)
def test_1463026_1():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startElementNS((None, 'a'), 'a', {(None, 'b'):'c'})
gen.endElementNS((None, 'a'), 'a')
gen.endDocument()
return result.getvalue() == start+'<a b="c"></a>'
def test_1463026_2():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startPrefixMapping(None, 'qux')
gen.startElementNS(('qux', 'a'), 'a', {})
gen.endElementNS(('qux', 'a'), 'a')
gen.endPrefixMapping(None)
gen.endDocument()
return result.getvalue() == start+'<a xmlns="qux"></a>'
def test_1463026_3():
result = StringIO()
gen = XMLGenerator(result)
gen.startDocument()
gen.startPrefixMapping('my', 'qux')
gen.startElementNS(('qux', 'a'), 'a', {(None, 'b'):'c'})
gen.endElementNS(('qux', 'a'), 'a')
gen.endPrefixMapping('my')
gen.endDocument()
return result.getvalue() == start+'<my:a xmlns:my="qux" b="c"></my:a>'
# ===== Xmlfilterbase
def test_filter_basic():
result = StringIO()
gen = XMLGenerator(result)
filter = XMLFilterBase()
filter.setContentHandler(gen)
filter.startDocument()
filter.startElement("doc", {})
filter.characters("content")
filter.ignorableWhitespace(" ")
filter.endElement("doc")
filter.endDocument()
return result.getvalue() == start + "<doc>content </doc>"
# ===========================================================================
#
# expatreader tests
#
# ===========================================================================
# ===== XMLReader support
def test_expat_file():
parser = create_parser()
result = StringIO()
xmlgen = XMLGenerator(result)
parser.setContentHandler(xmlgen)
parser.parse(open(findfile("test"+os.extsep+"xml")))
return result.getvalue() == xml_test_out
# ===== DTDHandler support
class TestDTDHandler:
def __init__(self):
self._notations = []
self._entities = []
def notationDecl(self, name, publicId, systemId):
self._notations.append((name, publicId, systemId))
def unparsedEntityDecl(self, name, publicId, systemId, ndata):
self._entities.append((name, publicId, systemId, ndata))
def test_expat_dtdhandler():
parser = create_parser()
handler = TestDTDHandler()
parser.setDTDHandler(handler)
parser.feed('<!DOCTYPE doc [\n')
parser.feed(' <!ENTITY img SYSTEM "expat.gif" NDATA GIF>\n')
parser.feed(' <!NOTATION GIF PUBLIC "-//CompuServe//NOTATION Graphics Interchange Format 89a//EN">\n')
parser.feed(']>\n')
parser.feed('<doc></doc>')
parser.close()
return handler._notations == [("GIF", "-//CompuServe//NOTATION Graphics Interchange Format 89a//EN", None)] and \
handler._entities == [("img", None, "expat.gif", "GIF")]
# ===== EntityResolver support
class TestEntityResolver:
def resolveEntity(self, publicId, systemId):
inpsrc = InputSource()
inpsrc.setByteStream(StringIO("<entity/>"))
return inpsrc
def test_expat_entityresolver():
parser = create_parser()
parser.setEntityResolver(TestEntityResolver())
result = StringIO()
parser.setContentHandler(XMLGenerator(result))
parser.feed('<!DOCTYPE doc [\n')
parser.feed(' <!ENTITY test SYSTEM "whatever">\n')
parser.feed(']>\n')
parser.feed('<doc>&test;</doc>')
parser.close()
return result.getvalue() == start + "<doc><entity></entity></doc>"
# ===== Attributes support
class AttrGatherer(ContentHandler):
def startElement(self, name, attrs):
self._attrs = attrs
def startElementNS(self, name, qname, attrs):
self._attrs = attrs
def test_expat_attrs_empty():
parser = create_parser()
gather = AttrGatherer()
parser.setContentHandler(gather)
parser.feed("<doc/>")
parser.close()
return verify_empty_attrs(gather._attrs)
def test_expat_attrs_wattr():
parser = create_parser()
gather = AttrGatherer()
parser.setContentHandler(gather)
parser.feed("<doc attr='val'/>")
parser.close()
return verify_attrs_wattr(gather._attrs)
def test_expat_nsattrs_empty():
parser = create_parser(1)
gather = AttrGatherer()
parser.setContentHandler(gather)
parser.feed("<doc/>")
parser.close()
return verify_empty_nsattrs(gather._attrs)
def test_expat_nsattrs_wattr():
parser = create_parser(1)
gather = AttrGatherer()
parser.setContentHandler(gather)
parser.feed("<doc xmlns:ns='%s' ns:attr='val'/>" % ns_uri)
parser.close()
attrs = gather._attrs
return attrs.getLength() == 1 and \
attrs.getNames() == [(ns_uri, "attr")] and \
(attrs.getQNames() == [] or attrs.getQNames() == ["ns:attr"]) and \
len(attrs) == 1 and \
attrs.has_key((ns_uri, "attr")) and \
attrs.keys() == [(ns_uri, "attr")] and \
attrs.get((ns_uri, "attr")) == "val" and \
attrs.get((ns_uri, "attr"), 25) == "val" and \
attrs.items() == [((ns_uri, "attr"), "val")] and \
attrs.values() == ["val"] and \
attrs.getValue((ns_uri, "attr")) == "val" and \
attrs[(ns_uri, "attr")] == "val"
# ===== InputSource support
xml_test_out = open(findfile("test"+os.extsep+"xml"+os.extsep+"out")).read()
def test_expat_inpsource_filename():
parser = create_parser()
result = StringIO()
xmlgen = XMLGenerator(result)
parser.setContentHandler(xmlgen)
parser.parse(findfile("test"+os.extsep+"xml"))
return result.getvalue() == xml_test_out
def test_expat_inpsource_sysid():
parser = create_parser()
result = StringIO()
xmlgen = XMLGenerator(result)
parser.setContentHandler(xmlgen)
parser.parse(InputSource(findfile("test"+os.extsep+"xml")))
return result.getvalue() == xml_test_out
def test_expat_inpsource_stream():
parser = create_parser()
result = StringIO()
xmlgen = XMLGenerator(result)
parser.setContentHandler(xmlgen)
inpsrc = InputSource()
inpsrc.setByteStream(open(findfile("test"+os.extsep+"xml")))
parser.parse(inpsrc)
return result.getvalue() == xml_test_out
# ===== IncrementalParser support
def test_expat_incremental():
result = StringIO()
xmlgen = XMLGenerator(result)
parser = create_parser()
parser.setContentHandler(xmlgen)
parser.feed("<doc>")
parser.feed("</doc>")
parser.close()
return result.getvalue() == start + "<doc></doc>"
def test_expat_incremental_reset():
result = StringIO()
xmlgen = XMLGenerator(result)
parser = create_parser()
parser.setContentHandler(xmlgen)
parser.feed("<doc>")
parser.feed("text")
result = StringIO()
xmlgen = XMLGenerator(result)
parser.setContentHandler(xmlgen)
parser.reset()
parser.feed("<doc>")
parser.feed("text")
parser.feed("</doc>")
parser.close()
return result.getvalue() == start + "<doc>text</doc>"
# ===== Locator support
def test_expat_locator_noinfo():
result = StringIO()
xmlgen = XMLGenerator(result)
parser = create_parser()
parser.setContentHandler(xmlgen)
parser.feed("<doc>")
parser.feed("</doc>")
parser.close()
return parser.getSystemId() is None and \
parser.getPublicId() is None and \
parser.getLineNumber() == 1
def test_expat_locator_withinfo():
result = StringIO()
xmlgen = XMLGenerator(result)
parser = create_parser()
parser.setContentHandler(xmlgen)
parser.parse(findfile("test.xml"))
return parser.getSystemId() == findfile("test.xml") and \
parser.getPublicId() is None
# ===========================================================================
#
# error reporting
#
# ===========================================================================
def test_expat_inpsource_location():
parser = create_parser()
parser.setContentHandler(ContentHandler()) # do nothing
source = InputSource()
source.setByteStream(StringIO("<foo bar foobar>")) #ill-formed
name = "a file name"
source.setSystemId(name)
try:
parser.parse(source)
except SAXException, e:
return e.getSystemId() == name
def test_expat_incomplete():
parser = create_parser()
parser.setContentHandler(ContentHandler()) # do nothing
try:
parser.parse(StringIO("<foo>"))
except SAXParseException:
return 1 # ok, error found
else:
return 0
def test_sax_parse_exception_str():
# pass various values from a locator to the SAXParseException to
# make sure that the __str__() doesn't fall apart when None is
# passed instead of an integer line and column number
#
# use "normal" values for the locator:
str(SAXParseException("message", None,
DummyLocator(1, 1)))
# use None for the line number:
str(SAXParseException("message", None,
DummyLocator(None, 1)))
# use None for the column number:
str(SAXParseException("message", None,
DummyLocator(1, None)))
# use None for both:
str(SAXParseException("message", None,
DummyLocator(None, None)))
return 1
class DummyLocator:
def __init__(self, lineno, colno):
self._lineno = lineno
self._colno = colno
def getPublicId(self):
return "pubid"
def getSystemId(self):
return "sysid"
def getLineNumber(self):
return self._lineno
def getColumnNumber(self):
return self._colno
# ===========================================================================
#
# xmlreader tests
#
# ===========================================================================
# ===== AttributesImpl
def verify_empty_attrs(attrs):
try:
attrs.getValue("attr")
gvk = 0
except KeyError:
gvk = 1
try:
attrs.getValueByQName("attr")
gvqk = 0
except KeyError:
gvqk = 1
try:
attrs.getNameByQName("attr")
gnqk = 0
except KeyError:
gnqk = 1
try:
attrs.getQNameByName("attr")
gqnk = 0
except KeyError:
gqnk = 1
try:
attrs["attr"]
gik = 0
except KeyError:
gik = 1
return attrs.getLength() == 0 and \
attrs.getNames() == [] and \
attrs.getQNames() == [] and \
len(attrs) == 0 and \
not attrs.has_key("attr") and \
attrs.keys() == [] and \
attrs.get("attrs") is None and \
attrs.get("attrs", 25) == 25 and \
attrs.items() == [] and \
attrs.values() == [] and \
gvk and gvqk and gnqk and gik and gqnk
def verify_attrs_wattr(attrs):
return attrs.getLength() == 1 and \
attrs.getNames() == ["attr"] and \
attrs.getQNames() == ["attr"] and \
len(attrs) == 1 and \
attrs.has_key("attr") and \
attrs.keys() == ["attr"] and \
attrs.get("attr") == "val" and \
attrs.get("attr", 25) == "val" and \
attrs.items() == [("attr", "val")] and \
attrs.values() == ["val"] and \
attrs.getValue("attr") == "val" and \
attrs.getValueByQName("attr") == "val" and \
attrs.getNameByQName("attr") == "attr" and \
attrs["attr"] == "val" and \
attrs.getQNameByName("attr") == "attr"
def test_attrs_empty():
return verify_empty_attrs(AttributesImpl({}))
def test_attrs_wattr():
return verify_attrs_wattr(AttributesImpl({"attr" : "val"}))
# ===== AttributesImpl
def verify_empty_nsattrs(attrs):
try:
attrs.getValue((ns_uri, "attr"))
gvk = 0
except KeyError:
gvk = 1
try:
attrs.getValueByQName("ns:attr")
gvqk = 0
except KeyError:
gvqk = 1
try:
attrs.getNameByQName("ns:attr")
gnqk = 0
except KeyError:
gnqk = 1
try:
attrs.getQNameByName((ns_uri, "attr"))
gqnk = 0
except KeyError:
gqnk = 1
try:
attrs[(ns_uri, "attr")]
gik = 0
except KeyError:
gik = 1
return attrs.getLength() == 0 and \
attrs.getNames() == [] and \
attrs.getQNames() == [] and \
len(attrs) == 0 and \
not attrs.has_key((ns_uri, "attr")) and \
attrs.keys() == [] and \
attrs.get((ns_uri, "attr")) is None and \
attrs.get((ns_uri, "attr"), 25) == 25 and \
attrs.items() == [] and \
attrs.values() == [] and \
gvk and gvqk and gnqk and gik and gqnk
def test_nsattrs_empty():
return verify_empty_nsattrs(AttributesNSImpl({}, {}))
def test_nsattrs_wattr():
attrs = AttributesNSImpl({(ns_uri, "attr") : "val"},
{(ns_uri, "attr") : "ns:attr"})
return attrs.getLength() == 1 and \
attrs.getNames() == [(ns_uri, "attr")] and \
attrs.getQNames() == ["ns:attr"] and \
len(attrs) == 1 and \
attrs.has_key((ns_uri, "attr")) and \
attrs.keys() == [(ns_uri, "attr")] and \
attrs.get((ns_uri, "attr")) == "val" and \
attrs.get((ns_uri, "attr"), 25) == "val" and \
attrs.items() == [((ns_uri, "attr"), "val")] and \
attrs.values() == ["val"] and \
attrs.getValue((ns_uri, "attr")) == "val" and \
attrs.getValueByQName("ns:attr") == "val" and \
attrs.getNameByQName("ns:attr") == (ns_uri, "attr") and \
attrs[(ns_uri, "attr")] == "val" and \
attrs.getQNameByName((ns_uri, "attr")) == "ns:attr"
# During the development of Python 2.5, an attempt to move the "xml"
# package implementation to a new package ("xmlcore") proved painful.
# The goal of this change was to allow applications to be able to
# obtain and rely on behavior in the standard library implementation
# of the XML support without needing to be concerned about the
# availability of the PyXML implementation.
#
# While the existing import hackery in Lib/xml/__init__.py can cause
# PyXML's _xmlpus package to supplant the "xml" package, that only
# works because either implementation uses the "xml" package name for
# imports.
#
# The move resulted in a number of problems related to the fact that
# the import machinery's "package context" is based on the name that's
# being imported rather than the __name__ of the actual package
# containment; it wasn't possible for the "xml" package to be replaced
# by a simple module that indirected imports to the "xmlcore" package.
#
# The following two tests exercised bugs that were introduced in that
# attempt. Keeping these tests around will help detect problems with
# other attempts to provide reliable access to the standard library's
# implementation of the XML support.
def test_sf_1511497():
# Bug report: http://www.python.org/sf/1511497
import sys
old_modules = sys.modules.copy()
for modname in sys.modules.keys():
if modname.startswith("xml."):
del sys.modules[modname]
try:
import xml.sax.expatreader
module = xml.sax.expatreader
return module.__name__ == "xml.sax.expatreader"
finally:
sys.modules.update(old_modules)
def test_sf_1513611():
# Bug report: http://www.python.org/sf/1513611
sio = StringIO("invalid")
parser = make_parser()
from xml.sax import SAXParseException
try:
parser.parse(sio)
except SAXParseException:
return True
else:
return False
# ===== Main program
def make_test_output():
parser = create_parser()
result = StringIO()
xmlgen = XMLGenerator(result)
parser.setContentHandler(xmlgen)
parser.parse(findfile("test"+os.extsep+"xml"))
outf = open(findfile("test"+os.extsep+"xml"+os.extsep+"out"), "w")
outf.write(result.getvalue())
outf.close()
items = locals().items()
items.sort()
for (name, value) in items:
if name[ : 5] == "test_":
confirm(value(), name)
# We delete the items variable so that the assignment to items above
# doesn't pick up the old value of items (which messes with attempts
# to find reference leaks).
del items
if verbose:
print "%d tests, %d failures" % (tests, len(failures))
if failures:
raise TestFailed("%d of %d tests failed: %s"
% (len(failures), tests, ", ".join(failures)))