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Diffstat (limited to 'lib/python2.7/test/test_sgmllib.py')
| -rw-r--r-- | lib/python2.7/test/test_sgmllib.py | 439 |
1 files changed, 439 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_sgmllib.py b/lib/python2.7/test/test_sgmllib.py new file mode 100644 index 0000000..c18bcc3 --- /dev/null +++ b/lib/python2.7/test/test_sgmllib.py @@ -0,0 +1,439 @@ +import pprint +import re +import unittest +from test import test_support +sgmllib = test_support.import_module('sgmllib', deprecated=True) + + +class EventCollector(sgmllib.SGMLParser): + + def __init__(self): + self.events = [] + self.append = self.events.append + sgmllib.SGMLParser.__init__(self) + + def get_events(self): + # Normalize the list of events so that buffer artefacts don't + # separate runs of contiguous characters. + L = [] + prevtype = None + for event in self.events: + type = event[0] + if type == prevtype == "data": + L[-1] = ("data", L[-1][1] + event[1]) + else: + L.append(event) + prevtype = type + self.events = L + return L + + # structure markup + + def unknown_starttag(self, tag, attrs): + self.append(("starttag", tag, attrs)) + + def unknown_endtag(self, tag): + self.append(("endtag", tag)) + + # all other markup + + def handle_comment(self, data): + self.append(("comment", data)) + + def handle_charref(self, data): + self.append(("charref", data)) + + def handle_data(self, data): + self.append(("data", data)) + + def handle_decl(self, decl): + self.append(("decl", decl)) + + def handle_entityref(self, data): + self.append(("entityref", data)) + + def handle_pi(self, data): + self.append(("pi", data)) + + def unknown_decl(self, decl): + self.append(("unknown decl", decl)) + + +class CDATAEventCollector(EventCollector): + def start_cdata(self, attrs): + self.append(("starttag", "cdata", attrs)) + self.setliteral() + + +class HTMLEntityCollector(EventCollector): + + entity_or_charref = re.compile('(?:&([a-zA-Z][-.a-zA-Z0-9]*)' + '|&#(x[0-9a-zA-Z]+|[0-9]+))(;?)') + + def convert_charref(self, name): + self.append(("charref", "convert", name)) + if name[0] != "x": + return EventCollector.convert_charref(self, name) + + def convert_codepoint(self, codepoint): + self.append(("codepoint", "convert", codepoint)) + EventCollector.convert_codepoint(self, codepoint) + + def convert_entityref(self, name): + self.append(("entityref", "convert", name)) + return EventCollector.convert_entityref(self, name) + + # These to record that they were called, then pass the call along + # to the default implementation so that it's actions can be + # recorded. + + def handle_charref(self, data): + self.append(("charref", data)) + sgmllib.SGMLParser.handle_charref(self, data) + + def handle_entityref(self, data): + self.append(("entityref", data)) + sgmllib.SGMLParser.handle_entityref(self, data) + + +class SGMLParserTestCase(unittest.TestCase): + + collector = EventCollector + + def get_events(self, source): + parser = self.collector() + try: + for s in source: + parser.feed(s) + parser.close() + except: + #self.events = parser.events + raise + return parser.get_events() + + def check_events(self, source, expected_events): + try: + events = self.get_events(source) + except: + #import sys + #print >>sys.stderr, pprint.pformat(self.events) + raise + if events != expected_events: + self.fail("received events did not match expected events\n" + "Expected:\n" + pprint.pformat(expected_events) + + "\nReceived:\n" + pprint.pformat(events)) + + def check_parse_error(self, source): + parser = EventCollector() + try: + parser.feed(source) + parser.close() + except sgmllib.SGMLParseError: + pass + else: + self.fail("expected SGMLParseError for %r\nReceived:\n%s" + % (source, pprint.pformat(parser.get_events()))) + + def test_doctype_decl_internal(self): + inside = """\ +DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01//EN' + SYSTEM 'http://www.w3.org/TR/html401/strict.dtd' [ + <!ELEMENT html - O EMPTY> + <!ATTLIST html + version CDATA #IMPLIED + profile CDATA 'DublinCore'> + <!NOTATION datatype SYSTEM 'http://xml.python.org/notations/python-module'> + <!ENTITY myEntity 'internal parsed entity'> + <!ENTITY anEntity SYSTEM 'http://xml.python.org/entities/something.xml'> + <!ENTITY % paramEntity 'name|name|name'> + %paramEntity; + <!-- comment --> +]""" + self.check_events(["<!%s>" % inside], [ + ("decl", inside), + ]) + + def test_doctype_decl_external(self): + inside = "DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01//EN'" + self.check_events("<!%s>" % inside, [ + ("decl", inside), + ]) + + def test_underscore_in_attrname(self): + # SF bug #436621 + """Make sure attribute names with underscores are accepted""" + self.check_events("<a has_under _under>", [ + ("starttag", "a", [("has_under", "has_under"), + ("_under", "_under")]), + ]) + + def test_underscore_in_tagname(self): + # SF bug #436621 + """Make sure tag names with underscores are accepted""" + self.check_events("<has_under></has_under>", [ + ("starttag", "has_under", []), + ("endtag", "has_under"), + ]) + + def test_quotes_in_unquoted_attrs(self): + # SF bug #436621 + """Be sure quotes in unquoted attributes are made part of the value""" + self.check_events("<a href=foo'bar\"baz>", [ + ("starttag", "a", [("href", "foo'bar\"baz")]), + ]) + + def test_xhtml_empty_tag(self): + """Handling of XHTML-style empty start tags""" + self.check_events("<br />text<i></i>", [ + ("starttag", "br", []), + ("data", "text"), + ("starttag", "i", []), + ("endtag", "i"), + ]) + + def test_processing_instruction_only(self): + self.check_events("<?processing instruction>", [ + ("pi", "processing instruction"), + ]) + + def test_bad_nesting(self): + self.check_events("<a><b></a></b>", [ + ("starttag", "a", []), + ("starttag", "b", []), + ("endtag", "a"), + ("endtag", "b"), + ]) + + def test_bare_ampersands(self): + self.check_events("this text & contains & ampersands &", [ + ("data", "this text & contains & ampersands &"), + ]) + + def test_bare_pointy_brackets(self): + self.check_events("this < text > contains < bare>pointy< brackets", [ + ("data", "this < text > contains < bare>pointy< brackets"), + ]) + + def test_attr_syntax(self): + output = [ + ("starttag", "a", [("b", "v"), ("c", "v"), ("d", "v"), ("e", "e")]) + ] + self.check_events("""<a b='v' c="v" d=v e>""", output) + self.check_events("""<a b = 'v' c = "v" d = v e>""", output) + self.check_events("""<a\nb\n=\n'v'\nc\n=\n"v"\nd\n=\nv\ne>""", output) + self.check_events("""<a\tb\t=\t'v'\tc\t=\t"v"\td\t=\tv\te>""", output) + + def test_attr_values(self): + self.check_events("""<a b='xxx\n\txxx' c="yyy\t\nyyy" d='\txyz\n'>""", + [("starttag", "a", [("b", "xxx\n\txxx"), + ("c", "yyy\t\nyyy"), + ("d", "\txyz\n")]) + ]) + self.check_events("""<a b='' c="">""", [ + ("starttag", "a", [("b", ""), ("c", "")]), + ]) + # URL construction stuff from RFC 1808: + safe = "$-_.+" + extra = "!*'()," + reserved = ";/?:@&=" + url = "http://example.com:8080/path/to/file?%s%s%s" % ( + safe, extra, reserved) + self.check_events("""<e a=%s>""" % url, [ + ("starttag", "e", [("a", url)]), + ]) + # Regression test for SF patch #669683. + self.check_events("<e a=rgb(1,2,3)>", [ + ("starttag", "e", [("a", "rgb(1,2,3)")]), + ]) + + def test_attr_values_entities(self): + """Substitution of entities and charrefs in attribute values""" + # SF bug #1452246 + self.check_events("""<a b=< c=<> d=<-> e='< ' + f="&xxx;" g=' !' h='Ǵ' + i='x?a=b&c=d;' + j='&#42;' k='&#42;'>""", + [("starttag", "a", [("b", "<"), + ("c", "<>"), + ("d", "<->"), + ("e", "< "), + ("f", "&xxx;"), + ("g", " !"), + ("h", "Ǵ"), + ("i", "x?a=b&c=d;"), + ("j", "*"), + ("k", "*"), + ])]) + + def test_convert_overrides(self): + # This checks that the character and entity reference + # conversion helpers are called at the documented times. No + # attempt is made to really change what the parser accepts. + # + self.collector = HTMLEntityCollector + self.check_events(('<a title="“test”">foo</a>' + '&foobar;*'), [ + ('entityref', 'convert', 'ldquo'), + ('charref', 'convert', 'x201d'), + ('starttag', 'a', [('title', '“test”')]), + ('data', 'foo'), + ('endtag', 'a'), + ('entityref', 'foobar'), + ('entityref', 'convert', 'foobar'), + ('charref', '42'), + ('charref', 'convert', '42'), + ('codepoint', 'convert', 42), + ]) + + def test_attr_funky_names(self): + self.check_events("""<a a.b='v' c:d=v e-f=v>""", [ + ("starttag", "a", [("a.b", "v"), ("c:d", "v"), ("e-f", "v")]), + ]) + + def test_attr_value_ip6_url(self): + # http://www.python.org/sf/853506 + self.check_events(("<a href='http://[1080::8:800:200C:417A]/'>" + "<a href=http://[1080::8:800:200C:417A]/>"), [ + ("starttag", "a", [("href", "http://[1080::8:800:200C:417A]/")]), + ("starttag", "a", [("href", "http://[1080::8:800:200C:417A]/")]), + ]) + + def test_weird_starttags(self): + self.check_events("<a<a>", [ + ("starttag", "a", []), + ("starttag", "a", []), + ]) + self.check_events("</a<a>", [ + ("endtag", "a"), + ("starttag", "a", []), + ]) + + def test_declaration_junk_chars(self): + self.check_parse_error("<!DOCTYPE foo $ >") + + def test_get_starttag_text(self): + s = """<foobar \n one="1"\ttwo=2 >""" + self.check_events(s, [ + ("starttag", "foobar", [("one", "1"), ("two", "2")]), + ]) + + def test_cdata_content(self): + s = ("<cdata> <!-- not a comment --> ¬-an-entity-ref; </cdata>" + "<notcdata> <!-- comment --> </notcdata>") + self.collector = CDATAEventCollector + self.check_events(s, [ + ("starttag", "cdata", []), + ("data", " <!-- not a comment --> ¬-an-entity-ref; "), + ("endtag", "cdata"), + ("starttag", "notcdata", []), + ("data", " "), + ("comment", " comment "), + ("data", " "), + ("endtag", "notcdata"), + ]) + s = """<cdata> <not a='start tag'> </cdata>""" + self.check_events(s, [ + ("starttag", "cdata", []), + ("data", " <not a='start tag'> "), + ("endtag", "cdata"), + ]) + + def test_illegal_declarations(self): + s = 'abc<!spacer type="block" height="25">def' + self.check_events(s, [ + ("data", "abc"), + ("unknown decl", 'spacer type="block" height="25"'), + ("data", "def"), + ]) + + def test_enumerated_attr_type(self): + s = "<!DOCTYPE doc [<!ATTLIST doc attr (a | b) >]>" + self.check_events(s, [ + ('decl', 'DOCTYPE doc [<!ATTLIST doc attr (a | b) >]'), + ]) + + def test_read_chunks(self): + # SF bug #1541697, this caused sgml parser to hang + # Just verify this code doesn't cause a hang. + CHUNK = 1024 # increasing this to 8212 makes the problem go away + + f = open(test_support.findfile('sgml_input.html')) + fp = sgmllib.SGMLParser() + while 1: + data = f.read(CHUNK) + fp.feed(data) + if len(data) != CHUNK: + break + + def test_only_decode_ascii(self): + # SF bug #1651995, make sure non-ascii character references are not decoded + s = '<signs exclamation="!" copyright="©" quoteleft="‘">' + self.check_events(s, [ + ('starttag', 'signs', + [('exclamation', '!'), ('copyright', '©'), + ('quoteleft', '‘')]), + ]) + + # XXX These tests have been disabled by prefixing their names with + # an underscore. The first two exercise outstanding bugs in the + # sgmllib module, and the third exhibits questionable behavior + # that needs to be carefully considered before changing it. + + def _test_starttag_end_boundary(self): + self.check_events("<a b='<'>", [("starttag", "a", [("b", "<")])]) + self.check_events("<a b='>'>", [("starttag", "a", [("b", ">")])]) + + def _test_buffer_artefacts(self): + output = [("starttag", "a", [("b", "<")])] + self.check_events(["<a b='<'>"], output) + self.check_events(["<a ", "b='<'>"], output) + self.check_events(["<a b", "='<'>"], output) + self.check_events(["<a b=", "'<'>"], output) + self.check_events(["<a b='<", "'>"], output) + self.check_events(["<a b='<'", ">"], output) + + output = [("starttag", "a", [("b", ">")])] + self.check_events(["<a b='>'>"], output) + self.check_events(["<a ", "b='>'>"], output) + self.check_events(["<a b", "='>'>"], output) + self.check_events(["<a b=", "'>'>"], output) + self.check_events(["<a b='>", "'>"], output) + self.check_events(["<a b='>'", ">"], output) + + output = [("comment", "abc")] + self.check_events(["", "<!--abc-->"], output) + self.check_events(["<", "!--abc-->"], output) + self.check_events(["<!", "--abc-->"], output) + self.check_events(["<!-", "-abc-->"], output) + self.check_events(["<!--", "abc-->"], output) + self.check_events(["<!--a", "bc-->"], output) + self.check_events(["<!--ab", "c-->"], output) + self.check_events(["<!--abc", "-->"], output) + self.check_events(["<!--abc-", "->"], output) + self.check_events(["<!--abc--", ">"], output) + self.check_events(["<!--abc-->", ""], output) + + def _test_starttag_junk_chars(self): + self.check_parse_error("<") + self.check_parse_error("<>") + self.check_parse_error("</$>") + self.check_parse_error("</") + self.check_parse_error("</a") + self.check_parse_error("<$") + self.check_parse_error("<$>") + self.check_parse_error("<!") + self.check_parse_error("<a $>") + self.check_parse_error("<a") + self.check_parse_error("<a foo='bar'") + self.check_parse_error("<a foo='bar") + self.check_parse_error("<a foo='>'") + self.check_parse_error("<a foo='>") + self.check_parse_error("<a foo=>") + + +def test_main(): + test_support.run_unittest(SGMLParserTestCase) + + +if __name__ == "__main__": + test_main() |