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Romain Guillebert committed 02d0c3e

Puts back the original test_pyexpat

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Files changed (1)

lib-python/2.7/test/test_pyexpat.py

+# XXX TypeErrors on calling handlers, or on bad return values from a
+# handler, are obscure and unhelpful.
+
+import StringIO, sys
+import unittest
+
+from xml.parsers import expat
+
+from test.test_support import sortdict, run_unittest
+
+
+class SetAttributeTest(unittest.TestCase):
+    def setUp(self):
+        self.parser = expat.ParserCreate(namespace_separator='!')
+        self.set_get_pairs = [
+            [0, 0],
+            [1, 1],
+            [2, 1],
+            [0, 0],
+            ]
+
+    def test_returns_unicode(self):
+        for x, y in self.set_get_pairs:
+            self.parser.returns_unicode = x
+            self.assertEqual(self.parser.returns_unicode, y)
+
+    def test_ordered_attributes(self):
+        for x, y in self.set_get_pairs:
+            self.parser.ordered_attributes = x
+            self.assertEqual(self.parser.ordered_attributes, y)
+
+    def test_specified_attributes(self):
+        for x, y in self.set_get_pairs:
+            self.parser.specified_attributes = x
+            self.assertEqual(self.parser.specified_attributes, y)
+
+
+data = '''\
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
+<?xml-stylesheet href="stylesheet.css"?>
+<!-- comment data -->
+<!DOCTYPE quotations SYSTEM "quotations.dtd" [
+<!ELEMENT root ANY>
+<!NOTATION notation SYSTEM "notation.jpeg">
+<!ENTITY acirc "&#226;">
+<!ENTITY external_entity SYSTEM "entity.file">
+<!ENTITY unparsed_entity SYSTEM "entity.file" NDATA notation>
+%unparsed_entity;
+]>
+
+<root attr1="value1" attr2="value2&#8000;">
+<myns:subelement xmlns:myns="http://www.python.org/namespace">
+     Contents of subelements
+</myns:subelement>
+<sub2><![CDATA[contents of CDATA section]]></sub2>
+&external_entity;
+</root>
+'''
+
+
+# Produce UTF-8 output
+class ParseTest(unittest.TestCase):
+    class Outputter:
+        def __init__(self):
+            self.out = []
+
+        def StartElementHandler(self, name, attrs):
+            self.out.append('Start element: ' + repr(name) + ' ' +
+                            sortdict(attrs))
+
+        def EndElementHandler(self, name):
+            self.out.append('End element: ' + repr(name))
+
+        def CharacterDataHandler(self, data):
+            data = data.strip()
+            if data:
+                self.out.append('Character data: ' + repr(data))
+
+        def ProcessingInstructionHandler(self, target, data):
+            self.out.append('PI: ' + repr(target) + ' ' + repr(data))
+
+        def StartNamespaceDeclHandler(self, prefix, uri):
+            self.out.append('NS decl: ' + repr(prefix) + ' ' + repr(uri))
+
+        def EndNamespaceDeclHandler(self, prefix):
+            self.out.append('End of NS decl: ' + repr(prefix))
+
+        def StartCdataSectionHandler(self):
+            self.out.append('Start of CDATA section')
+
+        def EndCdataSectionHandler(self):
+            self.out.append('End of CDATA section')
+
+        def CommentHandler(self, text):
+            self.out.append('Comment: ' + repr(text))
+
+        def NotationDeclHandler(self, *args):
+            name, base, sysid, pubid = args
+            self.out.append('Notation declared: %s' %(args,))
+
+        def UnparsedEntityDeclHandler(self, *args):
+            entityName, base, systemId, publicId, notationName = args
+            self.out.append('Unparsed entity decl: %s' %(args,))
+
+        def NotStandaloneHandler(self, userData):
+            self.out.append('Not standalone')
+            return 1
+
+        def ExternalEntityRefHandler(self, *args):
+            context, base, sysId, pubId = args
+            self.out.append('External entity ref: %s' %(args[1:],))
+            return 1
+
+        def DefaultHandler(self, userData):
+            pass
+
+        def DefaultHandlerExpand(self, userData):
+            pass
+
+    handler_names = [
+        'StartElementHandler', 'EndElementHandler',
+        'CharacterDataHandler', 'ProcessingInstructionHandler',
+        'UnparsedEntityDeclHandler', 'NotationDeclHandler',
+        'StartNamespaceDeclHandler', 'EndNamespaceDeclHandler',
+        'CommentHandler', 'StartCdataSectionHandler',
+        'EndCdataSectionHandler',
+        'DefaultHandler', 'DefaultHandlerExpand',
+        #'NotStandaloneHandler',
+        'ExternalEntityRefHandler'
+        ]
+
+    def test_utf8(self):
+
+        out = self.Outputter()
+        parser = expat.ParserCreate(namespace_separator='!')
+        for name in self.handler_names:
+            setattr(parser, name, getattr(out, name))
+        parser.returns_unicode = 0
+        parser.Parse(data, 1)
+
+        # Verify output
+        op = out.out
+        self.assertEqual(op[0], 'PI: \'xml-stylesheet\' \'href="stylesheet.css"\'')
+        self.assertEqual(op[1], "Comment: ' comment data '")
+        self.assertEqual(op[2], "Notation declared: ('notation', None, 'notation.jpeg', None)")
+        self.assertEqual(op[3], "Unparsed entity decl: ('unparsed_entity', None, 'entity.file', None, 'notation')")
+        self.assertEqual(op[4], "Start element: 'root' {'attr1': 'value1', 'attr2': 'value2\\xe1\\xbd\\x80'}")
+        self.assertEqual(op[5], "NS decl: 'myns' 'http://www.python.org/namespace'")
+        self.assertEqual(op[6], "Start element: 'http://www.python.org/namespace!subelement' {}")
+        self.assertEqual(op[7], "Character data: 'Contents of subelements'")
+        self.assertEqual(op[8], "End element: 'http://www.python.org/namespace!subelement'")
+        self.assertEqual(op[9], "End of NS decl: 'myns'")
+        self.assertEqual(op[10], "Start element: 'sub2' {}")
+        self.assertEqual(op[11], 'Start of CDATA section')
+        self.assertEqual(op[12], "Character data: 'contents of CDATA section'")
+        self.assertEqual(op[13], 'End of CDATA section')
+        self.assertEqual(op[14], "End element: 'sub2'")
+        self.assertEqual(op[15], "External entity ref: (None, 'entity.file', None)")
+        self.assertEqual(op[16], "End element: 'root'")
+
+    def test_unicode(self):
+        # Try the parse again, this time producing Unicode output
+        out = self.Outputter()
+        parser = expat.ParserCreate(namespace_separator='!')
+        parser.returns_unicode = 1
+        for name in self.handler_names:
+            setattr(parser, name, getattr(out, name))
+
+        parser.Parse(data, 1)
+
+        op = out.out
+        self.assertEqual(op[0], 'PI: u\'xml-stylesheet\' u\'href="stylesheet.css"\'')
+        self.assertEqual(op[1], "Comment: u' comment data '")
+        self.assertEqual(op[2], "Notation declared: (u'notation', None, u'notation.jpeg', None)")
+        self.assertEqual(op[3], "Unparsed entity decl: (u'unparsed_entity', None, u'entity.file', None, u'notation')")
+        self.assertEqual(op[4], "Start element: u'root' {u'attr1': u'value1', u'attr2': u'value2\\u1f40'}")
+        self.assertEqual(op[5], "NS decl: u'myns' u'http://www.python.org/namespace'")
+        self.assertEqual(op[6], "Start element: u'http://www.python.org/namespace!subelement' {}")
+        self.assertEqual(op[7], "Character data: u'Contents of subelements'")
+        self.assertEqual(op[8], "End element: u'http://www.python.org/namespace!subelement'")
+        self.assertEqual(op[9], "End of NS decl: u'myns'")
+        self.assertEqual(op[10], "Start element: u'sub2' {}")
+        self.assertEqual(op[11], 'Start of CDATA section')
+        self.assertEqual(op[12], "Character data: u'contents of CDATA section'")
+        self.assertEqual(op[13], 'End of CDATA section')
+        self.assertEqual(op[14], "End element: u'sub2'")
+        self.assertEqual(op[15], "External entity ref: (None, u'entity.file', None)")
+        self.assertEqual(op[16], "End element: u'root'")
+
+    def test_parse_file(self):
+        # Try parsing a file
+        out = self.Outputter()
+        parser = expat.ParserCreate(namespace_separator='!')
+        parser.returns_unicode = 1
+        for name in self.handler_names:
+            setattr(parser, name, getattr(out, name))
+        file = StringIO.StringIO(data)
+
+        parser.ParseFile(file)
+
+        op = out.out
+        self.assertEqual(op[0], 'PI: u\'xml-stylesheet\' u\'href="stylesheet.css"\'')
+        self.assertEqual(op[1], "Comment: u' comment data '")
+        self.assertEqual(op[2], "Notation declared: (u'notation', None, u'notation.jpeg', None)")
+        self.assertEqual(op[3], "Unparsed entity decl: (u'unparsed_entity', None, u'entity.file', None, u'notation')")
+        self.assertEqual(op[4], "Start element: u'root' {u'attr1': u'value1', u'attr2': u'value2\\u1f40'}")
+        self.assertEqual(op[5], "NS decl: u'myns' u'http://www.python.org/namespace'")
+        self.assertEqual(op[6], "Start element: u'http://www.python.org/namespace!subelement' {}")
+        self.assertEqual(op[7], "Character data: u'Contents of subelements'")
+        self.assertEqual(op[8], "End element: u'http://www.python.org/namespace!subelement'")
+        self.assertEqual(op[9], "End of NS decl: u'myns'")
+        self.assertEqual(op[10], "Start element: u'sub2' {}")
+        self.assertEqual(op[11], 'Start of CDATA section')
+        self.assertEqual(op[12], "Character data: u'contents of CDATA section'")
+        self.assertEqual(op[13], 'End of CDATA section')
+        self.assertEqual(op[14], "End element: u'sub2'")
+        self.assertEqual(op[15], "External entity ref: (None, u'entity.file', None)")
+        self.assertEqual(op[16], "End element: u'root'")
+
+
+class NamespaceSeparatorTest(unittest.TestCase):
+    def test_legal(self):
+        # Tests that make sure we get errors when the namespace_separator value
+        # is illegal, and that we don't for good values:
+        expat.ParserCreate()
+        expat.ParserCreate(namespace_separator=None)
+        expat.ParserCreate(namespace_separator=' ')
+
+    def test_illegal(self):
+        try:
+            expat.ParserCreate(namespace_separator=42)
+            self.fail()
+        except TypeError, e:
+            self.assertEqual(str(e),
+                'ParserCreate() argument 2 must be string or None, not int')
+
+        try:
+            expat.ParserCreate(namespace_separator='too long')
+            self.fail()
+        except ValueError, e:
+            self.assertEqual(str(e),
+                'namespace_separator must be at most one character, omitted, or None')
+
+    def test_zero_length(self):
+        # ParserCreate() needs to accept a namespace_separator of zero length
+        # to satisfy the requirements of RDF applications that are required
+        # to simply glue together the namespace URI and the localname.  Though
+        # considered a wart of the RDF specifications, it needs to be supported.
+        #
+        # See XML-SIG mailing list thread starting with
+        # http://mail.python.org/pipermail/xml-sig/2001-April/005202.html
+        #
+        expat.ParserCreate(namespace_separator='') # too short
+
+
+class InterningTest(unittest.TestCase):
+    def test(self):
+        # Test the interning machinery.
+        p = expat.ParserCreate()
+        L = []
+        def collector(name, *args):
+            L.append(name)
+        p.StartElementHandler = collector
+        p.EndElementHandler = collector
+        p.Parse("<e> <e/> <e></e> </e>", 1)
+        tag = L[0]
+        self.assertEqual(len(L), 6)
+        for entry in L:
+            # L should have the same string repeated over and over.
+            self.assertTrue(tag is entry)
+
+
+class BufferTextTest(unittest.TestCase):
+    def setUp(self):
+        self.stuff = []
+        self.parser = expat.ParserCreate()
+        self.parser.buffer_text = 1
+        self.parser.CharacterDataHandler = self.CharacterDataHandler
+
+    def check(self, expected, label):
+        self.assertEqual(self.stuff, expected,
+                "%s\nstuff    = %r\nexpected = %r"
+                % (label, self.stuff, map(unicode, expected)))
+
+    def CharacterDataHandler(self, text):
+        self.stuff.append(text)
+
+    def StartElementHandler(self, name, attrs):
+        self.stuff.append("<%s>" % name)
+        bt = attrs.get("buffer-text")
+        if bt == "yes":
+            self.parser.buffer_text = 1
+        elif bt == "no":
+            self.parser.buffer_text = 0
+
+    def EndElementHandler(self, name):
+        self.stuff.append("</%s>" % name)
+
+    def CommentHandler(self, data):
+        self.stuff.append("<!--%s-->" % data)
+
+    def setHandlers(self, handlers=[]):
+        for name in handlers:
+            setattr(self.parser, name, getattr(self, name))
+
+    def test_default_to_disabled(self):
+        parser = expat.ParserCreate()
+        self.assertFalse(parser.buffer_text)
+
+    def test_buffering_enabled(self):
+        # Make sure buffering is turned on
+        self.assertTrue(self.parser.buffer_text)
+        self.parser.Parse("<a>1<b/>2<c/>3</a>", 1)
+        self.assertEqual(self.stuff, ['123'],
+                         "buffered text not properly collapsed")
+
+    def test1(self):
+        # XXX This test exposes more detail of Expat's text chunking than we
+        # XXX like, but it tests what we need to concisely.
+        self.setHandlers(["StartElementHandler"])
+        self.parser.Parse("<a>1<b buffer-text='no'/>2\n3<c buffer-text='yes'/>4\n5</a>", 1)
+        self.assertEqual(self.stuff,
+                         ["<a>", "1", "<b>", "2", "\n", "3", "<c>", "4\n5"],
+                         "buffering control not reacting as expected")
+
+    def test2(self):
+        self.parser.Parse("<a>1<b/>&lt;2&gt;<c/>&#32;\n&#x20;3</a>", 1)
+        self.assertEqual(self.stuff, ["1<2> \n 3"],
+                         "buffered text not properly collapsed")
+
+    def test3(self):
+        self.setHandlers(["StartElementHandler"])
+        self.parser.Parse("<a>1<b/>2<c/>3</a>", 1)
+        self.assertEqual(self.stuff, ["<a>", "1", "<b>", "2", "<c>", "3"],
+                          "buffered text not properly split")
+
+    def test4(self):
+        self.setHandlers(["StartElementHandler", "EndElementHandler"])
+        self.parser.CharacterDataHandler = None
+        self.parser.Parse("<a>1<b/>2<c/>3</a>", 1)
+        self.assertEqual(self.stuff,
+                         ["<a>", "<b>", "</b>", "<c>", "</c>", "</a>"])
+
+    def test5(self):
+        self.setHandlers(["StartElementHandler", "EndElementHandler"])
+        self.parser.Parse("<a>1<b></b>2<c/>3</a>", 1)
+        self.assertEqual(self.stuff,
+            ["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "3", "</a>"])
+
+    def test6(self):
+        self.setHandlers(["CommentHandler", "EndElementHandler",
+                    "StartElementHandler"])
+        self.parser.Parse("<a>1<b/>2<c></c>345</a> ", 1)
+        self.assertEqual(self.stuff,
+            ["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "345", "</a>"],
+            "buffered text not properly split")
+
+    def test7(self):
+        self.setHandlers(["CommentHandler", "EndElementHandler",
+                    "StartElementHandler"])
+        self.parser.Parse("<a>1<b/>2<c></c>3<!--abc-->4<!--def-->5</a> ", 1)
+        self.assertEqual(self.stuff,
+                         ["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "3",
+                          "<!--abc-->", "4", "<!--def-->", "5", "</a>"],
+                         "buffered text not properly split")
+
+
+# Test handling of exception from callback:
+class HandlerExceptionTest(unittest.TestCase):
+    def StartElementHandler(self, name, attrs):
+        raise RuntimeError(name)
+
+    def test(self):
+        parser = expat.ParserCreate()
+        parser.StartElementHandler = self.StartElementHandler
+        try:
+            parser.Parse("<a><b><c/></b></a>", 1)
+            self.fail()
+        except RuntimeError, e:
+            self.assertEqual(e.args[0], 'a',
+                             "Expected RuntimeError for element 'a', but" + \
+                             " found %r" % e.args[0])
+
+
+# Test Current* members:
+class PositionTest(unittest.TestCase):
+    def StartElementHandler(self, name, attrs):
+        self.check_pos('s')
+
+    def EndElementHandler(self, name):
+        self.check_pos('e')
+
+    def check_pos(self, event):
+        pos = (event,
+               self.parser.CurrentByteIndex,
+               self.parser.CurrentLineNumber,
+               self.parser.CurrentColumnNumber)
+        self.assertTrue(self.upto < len(self.expected_list),
+                        'too many parser events')
+        expected = self.expected_list[self.upto]
+        self.assertEqual(pos, expected,
+                'Expected position %s, got position %s' %(pos, expected))
+        self.upto += 1
+
+    def test(self):
+        self.parser = expat.ParserCreate()
+        self.parser.StartElementHandler = self.StartElementHandler
+        self.parser.EndElementHandler = self.EndElementHandler
+        self.upto = 0
+        self.expected_list = [('s', 0, 1, 0), ('s', 5, 2, 1), ('s', 11, 3, 2),
+                              ('e', 15, 3, 6), ('e', 17, 4, 1), ('e', 22, 5, 0)]
+
+        xml = '<a>\n <b>\n  <c/>\n </b>\n</a>'
+        self.parser.Parse(xml, 1)
+
+
+class sf1296433Test(unittest.TestCase):
+    def test_parse_only_xml_data(self):
+        # http://python.org/sf/1296433
+        #
+        xml = "<?xml version='1.0' encoding='iso8859'?><s>%s</s>" % ('a' * 1025)
+        # this one doesn't crash
+        #xml = "<?xml version='1.0'?><s>%s</s>" % ('a' * 10000)
+
+        class SpecificException(Exception):
+            pass
+
+        def handler(text):
+            raise SpecificException
+
+        parser = expat.ParserCreate()
+        parser.CharacterDataHandler = handler
+
+        self.assertRaises(Exception, parser.Parse, xml)
+
+class ChardataBufferTest(unittest.TestCase):
+    """
+    test setting of chardata buffer size
+    """
+
+    def test_1025_bytes(self):
+        self.assertEqual(self.small_buffer_test(1025), 2)
+
+    def test_1000_bytes(self):
+        self.assertEqual(self.small_buffer_test(1000), 1)
+
+    def test_wrong_size(self):
+        parser = expat.ParserCreate()
+        parser.buffer_text = 1
+        def f(size):
+            parser.buffer_size = size
+
+        self.assertRaises(TypeError, f, sys.maxint+1)
+        self.assertRaises(ValueError, f, -1)
+        self.assertRaises(ValueError, f, 0)
+
+    def test_unchanged_size(self):
+        xml1 = ("<?xml version='1.0' encoding='iso8859'?><s>%s" % ('a' * 512))
+        xml2 = 'a'*512 + '</s>'
+        parser = expat.ParserCreate()
+        parser.CharacterDataHandler = self.counting_handler
+        parser.buffer_size = 512
+        parser.buffer_text = 1
+
+        # Feed 512 bytes of character data: the handler should be called
+        # once.
+        self.n = 0
+        parser.Parse(xml1)
+        self.assertEqual(self.n, 1)
+
+        # Reassign to buffer_size, but assign the same size.
+        parser.buffer_size = parser.buffer_size
+        self.assertEqual(self.n, 1)
+
+        # Try parsing rest of the document
+        parser.Parse(xml2)
+        self.assertEqual(self.n, 2)
+
+
+    def test_disabling_buffer(self):
+        xml1 = "<?xml version='1.0' encoding='iso8859'?><a>%s" % ('a' * 512)
+        xml2 = ('b' * 1024)
+        xml3 = "%s</a>" % ('c' * 1024)
+        parser = expat.ParserCreate()
+        parser.CharacterDataHandler = self.counting_handler
+        parser.buffer_text = 1
+        parser.buffer_size = 1024
+        self.assertEqual(parser.buffer_size, 1024)
+
+        # Parse one chunk of XML
+        self.n = 0
+        parser.Parse(xml1, 0)
+        self.assertEqual(parser.buffer_size, 1024)
+        self.assertEqual(self.n, 1)
+
+        # Turn off buffering and parse the next chunk.
+        parser.buffer_text = 0
+        self.assertFalse(parser.buffer_text)
+        self.assertEqual(parser.buffer_size, 1024)
+        for i in range(10):
+            parser.Parse(xml2, 0)
+        self.assertEqual(self.n, 11)
+
+        parser.buffer_text = 1
+        self.assertTrue(parser.buffer_text)
+        self.assertEqual(parser.buffer_size, 1024)
+        parser.Parse(xml3, 1)
+        self.assertEqual(self.n, 12)
+
+
+
+    def make_document(self, bytes):
+        return ("<?xml version='1.0'?><tag>" + bytes * 'a' + '</tag>')
+
+    def counting_handler(self, text):
+        self.n += 1
+
+    def small_buffer_test(self, buffer_len):
+        xml = "<?xml version='1.0' encoding='iso8859'?><s>%s</s>" % ('a' * buffer_len)
+        parser = expat.ParserCreate()
+        parser.CharacterDataHandler = self.counting_handler
+        parser.buffer_size = 1024
+        parser.buffer_text = 1
+
+        self.n = 0
+        parser.Parse(xml)
+        return self.n
+
+    def test_change_size_1(self):
+        xml1 = "<?xml version='1.0' encoding='iso8859'?><a><s>%s" % ('a' * 1024)
+        xml2 = "aaa</s><s>%s</s></a>" % ('a' * 1025)
+        parser = expat.ParserCreate()
+        parser.CharacterDataHandler = self.counting_handler
+        parser.buffer_text = 1
+        parser.buffer_size = 1024
+        self.assertEqual(parser.buffer_size, 1024)
+
+        self.n = 0
+        parser.Parse(xml1, 0)
+        parser.buffer_size *= 2
+        self.assertEqual(parser.buffer_size, 2048)
+        parser.Parse(xml2, 1)
+        self.assertEqual(self.n, 2)
+
+    def test_change_size_2(self):
+        xml1 = "<?xml version='1.0' encoding='iso8859'?><a>a<s>%s" % ('a' * 1023)
+        xml2 = "aaa</s><s>%s</s></a>" % ('a' * 1025)
+        parser = expat.ParserCreate()
+        parser.CharacterDataHandler = self.counting_handler
+        parser.buffer_text = 1
+        parser.buffer_size = 2048
+        self.assertEqual(parser.buffer_size, 2048)
+
+        self.n=0
+        parser.Parse(xml1, 0)
+        parser.buffer_size //= 2
+        self.assertEqual(parser.buffer_size, 1024)
+        parser.Parse(xml2, 1)
+        self.assertEqual(self.n, 4)
+
+class MalformedInputText(unittest.TestCase):
+    def test1(self):
+        xml = "\0\r\n"
+        parser = expat.ParserCreate()
+        try:
+            parser.Parse(xml, True)
+            self.fail()
+        except expat.ExpatError as e:
+            self.assertEqual(str(e), 'unclosed token: line 2, column 0')
+
+    def test2(self):
+        xml = "<?xml version\xc2\x85='1.0'?>\r\n"
+        parser = expat.ParserCreate()
+        try:
+            parser.Parse(xml, True)
+            self.fail()
+        except expat.ExpatError as e:
+            self.assertEqual(str(e), 'XML declaration not well-formed: line 1, column 14')
+
+def test_main():
+    run_unittest(SetAttributeTest,
+                 ParseTest,
+                 NamespaceSeparatorTest,
+                 InterningTest,
+                 BufferTextTest,
+                 HandlerExceptionTest,
+                 PositionTest,
+                 sf1296433Test,
+                 ChardataBufferTest,
+                 MalformedInputText)
+
+if __name__ == "__main__":
+    test_main()