| """Tests for HTMLParser.py.""" |
| |
| import HTMLParser |
| import pprint |
| import unittest |
| from test import test_support |
| |
| |
| class EventCollector(HTMLParser.HTMLParser): |
| |
| def __init__(self): |
| self.events = [] |
| self.append = self.events.append |
| HTMLParser.HTMLParser.__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 handle_starttag(self, tag, attrs): |
| self.append(("starttag", tag, attrs)) |
| |
| def handle_startendtag(self, tag, attrs): |
| self.append(("startendtag", tag, attrs)) |
| |
| def handle_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, data): |
| self.append(("decl", data)) |
| |
| 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 EventCollectorExtra(EventCollector): |
| |
| def handle_starttag(self, tag, attrs): |
| EventCollector.handle_starttag(self, tag, attrs) |
| self.append(("starttag_text", self.get_starttag_text())) |
| |
| |
| class TestCaseBase(unittest.TestCase): |
| |
| def _run_check(self, source, expected_events, collector=EventCollector): |
| parser = collector() |
| for s in source: |
| parser.feed(s) |
| parser.close() |
| events = parser.get_events() |
| 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 _run_check_extra(self, source, events): |
| self._run_check(source, events, EventCollectorExtra) |
| |
| def _parse_error(self, source): |
| def parse(source=source): |
| parser = HTMLParser.HTMLParser() |
| parser.feed(source) |
| parser.close() |
| self.assertRaises(HTMLParser.HTMLParseError, parse) |
| |
| |
| class HTMLParserTestCase(TestCaseBase): |
| |
| def test_processing_instruction_only(self): |
| self._run_check("<?processing instruction>", [ |
| ("pi", "processing instruction"), |
| ]) |
| self._run_check("<?processing instruction ?>", [ |
| ("pi", "processing instruction ?"), |
| ]) |
| |
| def test_simple_html(self): |
| self._run_check(""" |
| <!DOCTYPE html PUBLIC 'foo'> |
| <HTML>&entity;  |
| <!--comment1a |
| -></foo><bar><<?pi?></foo<bar |
| comment1b--> |
| <Img sRc='Bar' isMAP>sample |
| text |
| “ |
| <!--comment2a-- --comment2b--><!> |
| </Html> |
| """, [ |
| ("data", "\n"), |
| ("decl", "DOCTYPE html PUBLIC 'foo'"), |
| ("data", "\n"), |
| ("starttag", "html", []), |
| ("entityref", "entity"), |
| ("charref", "32"), |
| ("data", "\n"), |
| ("comment", "comment1a\n-></foo><bar><<?pi?></foo<bar\ncomment1b"), |
| ("data", "\n"), |
| ("starttag", "img", [("src", "Bar"), ("ismap", None)]), |
| ("data", "sample\ntext\n"), |
| ("charref", "x201C"), |
| ("data", "\n"), |
| ("comment", "comment2a-- --comment2b"), |
| ("data", "\n"), |
| ("endtag", "html"), |
| ("data", "\n"), |
| ]) |
| |
| def test_unclosed_entityref(self): |
| self._run_check("&entityref foo", [ |
| ("entityref", "entityref"), |
| ("data", " foo"), |
| ]) |
| |
| def test_doctype_decl(self): |
| inside = """\ |
| DOCTYPE html [ |
| <!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._run_check("<!%s>" % inside, [ |
| ("decl", inside), |
| ]) |
| |
| def test_bad_nesting(self): |
| # Strangely, this *is* supposed to test that overlapping |
| # elements are allowed. HTMLParser is more geared toward |
| # lexing the input that parsing the structure. |
| self._run_check("<a><b></a></b>", [ |
| ("starttag", "a", []), |
| ("starttag", "b", []), |
| ("endtag", "a"), |
| ("endtag", "b"), |
| ]) |
| |
| def test_bare_ampersands(self): |
| self._run_check("this text & contains & ampersands &", [ |
| ("data", "this text & contains & ampersands &"), |
| ]) |
| |
| def test_bare_pointy_brackets(self): |
| self._run_check("this < text > contains < bare>pointy< brackets", [ |
| ("data", "this < text > contains < bare>pointy< brackets"), |
| ]) |
| |
| def test_illegal_declarations(self): |
| self._parse_error('<!spacer type="block" height="25">') |
| |
| def test_starttag_end_boundary(self): |
| self._run_check("""<a b='<'>""", [("starttag", "a", [("b", "<")])]) |
| self._run_check("""<a b='>'>""", [("starttag", "a", [("b", ">")])]) |
| |
| def test_buffer_artefacts(self): |
| output = [("starttag", "a", [("b", "<")])] |
| self._run_check(["<a b='<'>"], output) |
| self._run_check(["<a ", "b='<'>"], output) |
| self._run_check(["<a b", "='<'>"], output) |
| self._run_check(["<a b=", "'<'>"], output) |
| self._run_check(["<a b='<", "'>"], output) |
| self._run_check(["<a b='<'", ">"], output) |
| |
| output = [("starttag", "a", [("b", ">")])] |
| self._run_check(["<a b='>'>"], output) |
| self._run_check(["<a ", "b='>'>"], output) |
| self._run_check(["<a b", "='>'>"], output) |
| self._run_check(["<a b=", "'>'>"], output) |
| self._run_check(["<a b='>", "'>"], output) |
| self._run_check(["<a b='>'", ">"], output) |
| |
| output = [("comment", "abc")] |
| self._run_check(["", "<!--abc-->"], output) |
| self._run_check(["<", "!--abc-->"], output) |
| self._run_check(["<!", "--abc-->"], output) |
| self._run_check(["<!-", "-abc-->"], output) |
| self._run_check(["<!--", "abc-->"], output) |
| self._run_check(["<!--a", "bc-->"], output) |
| self._run_check(["<!--ab", "c-->"], output) |
| self._run_check(["<!--abc", "-->"], output) |
| self._run_check(["<!--abc-", "->"], output) |
| self._run_check(["<!--abc--", ">"], output) |
| self._run_check(["<!--abc-->", ""], output) |
| |
| def test_starttag_junk_chars(self): |
| self._parse_error("</>") |
| self._parse_error("</$>") |
| self._parse_error("</") |
| self._parse_error("</a") |
| self._parse_error("<a<a>") |
| self._parse_error("</a<a>") |
| self._parse_error("<!") |
| self._parse_error("<a") |
| self._parse_error("<a foo='bar'") |
| self._parse_error("<a foo='bar") |
| self._parse_error("<a foo='>'") |
| self._parse_error("<a foo='>") |
| |
| def test_declaration_junk_chars(self): |
| self._parse_error("<!DOCTYPE foo $ >") |
| |
| def test_startendtag(self): |
| self._run_check("<p/>", [ |
| ("startendtag", "p", []), |
| ]) |
| self._run_check("<p></p>", [ |
| ("starttag", "p", []), |
| ("endtag", "p"), |
| ]) |
| self._run_check("<p><img src='foo' /></p>", [ |
| ("starttag", "p", []), |
| ("startendtag", "img", [("src", "foo")]), |
| ("endtag", "p"), |
| ]) |
| |
| def test_get_starttag_text(self): |
| s = """<foo:bar \n one="1"\ttwo=2 >""" |
| self._run_check_extra(s, [ |
| ("starttag", "foo:bar", [("one", "1"), ("two", "2")]), |
| ("starttag_text", s)]) |
| |
| def test_cdata_content(self): |
| contents = [ |
| '<!-- not a comment --> ¬-an-entity-ref;', |
| "<not a='start tag'>", |
| '<a href="" /> <p> <span></span>', |
| 'foo = "</scr" + "ipt>";', |
| 'foo = "</SCRIPT" + ">";', |
| 'foo = <\n/script> ', |
| '<!-- document.write("</scr" + "ipt>"); -->', |
| ('\n//<![CDATA[\n' |
| 'document.write(\'<s\'+\'cript type="text/javascript" ' |
| 'src="http://www.example.org/r=\'+new ' |
| 'Date().getTime()+\'"><\\/s\'+\'cript>\');\n//]]>'), |
| '\n<!-- //\nvar foo = 3.14;\n// -->\n', |
| 'foo = "</sty" + "le>";', |
| u'<!-- \u2603 -->', |
| # these two should be invalid according to the HTML 5 spec, |
| # section 8.1.2.2 |
| #'foo = </\nscript>', |
| #'foo = </ script>', |
| ] |
| elements = ['script', 'style', 'SCRIPT', 'STYLE', 'Script', 'Style'] |
| for content in contents: |
| for element in elements: |
| element_lower = element.lower() |
| s = u'<{element}>{content}</{element}>'.format(element=element, |
| content=content) |
| self._run_check(s, [("starttag", element_lower, []), |
| ("data", content), |
| ("endtag", element_lower)]) |
| |
| def test_cdata_with_closing_tags(self): |
| # see issue #13358 |
| # make sure that HTMLParser calls handle_data only once for each CDATA. |
| # The normal event collector normalizes the events in get_events, |
| # so we override it to return the original list of events. |
| class Collector(EventCollector): |
| def get_events(self): |
| return self.events |
| |
| content = """<!-- not a comment --> ¬-an-entity-ref; |
| <a href="" /> </p><p> & <span></span></style> |
| '</script' + '>' </html> </head> </scripter>!""" |
| for element in [' script', 'script ', ' script ', |
| '\nscript', 'script\n', '\nscript\n']: |
| s = u'<script>{content}</{element}>'.format(element=element, |
| content=content) |
| self._run_check(s, [("starttag", "script", []), |
| ("data", content), |
| ("endtag", "script")], |
| collector=Collector) |
| |
| def test_malformatted_charref(self): |
| self._run_check("<p>&#bad;</p>", [ |
| ("starttag", "p", []), |
| ("data", "&#bad;"), |
| ("endtag", "p"), |
| ]) |
| |
| def test_unescape_function(self): |
| parser = HTMLParser.HTMLParser() |
| self.assertEqual(parser.unescape('&#bad;'),'&#bad;') |
| self.assertEqual(parser.unescape('&'),'&') |
| |
| |
| |
| class AttributesTestCase(TestCaseBase): |
| |
| def test_attr_syntax(self): |
| output = [ |
| ("starttag", "a", [("b", "v"), ("c", "v"), ("d", "v"), ("e", None)]) |
| ] |
| self._run_check("""<a b='v' c="v" d=v e>""", output) |
| self._run_check("""<a b = 'v' c = "v" d = v e>""", output) |
| self._run_check("""<a\nb\n=\n'v'\nc\n=\n"v"\nd\n=\nv\ne>""", output) |
| self._run_check("""<a\tb\t=\t'v'\tc\t=\t"v"\td\t=\tv\te>""", output) |
| |
| def test_attr_values(self): |
| self._run_check("""<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._run_check("""<a b='' c="">""", |
| [("starttag", "a", [("b", ""), ("c", "")])]) |
| # Regression test for SF patch #669683. |
| self._run_check("<e a=rgb(1,2,3)>", |
| [("starttag", "e", [("a", "rgb(1,2,3)")])]) |
| # Regression test for SF bug #921657. |
| self._run_check( |
| "<a href=mailto:xyz@example.com>", |
| [("starttag", "a", [("href", "mailto:xyz@example.com")])]) |
| |
| def test_attr_nonascii(self): |
| # see issue 7311 |
| self._run_check( |
| u"<img src=/foo/bar.png alt=\u4e2d\u6587>", |
| [("starttag", "img", [("src", "/foo/bar.png"), |
| ("alt", u"\u4e2d\u6587")])]) |
| self._run_check( |
| u"<a title='\u30c6\u30b9\u30c8' href='\u30c6\u30b9\u30c8.html'>", |
| [("starttag", "a", [("title", u"\u30c6\u30b9\u30c8"), |
| ("href", u"\u30c6\u30b9\u30c8.html")])]) |
| self._run_check( |
| u'<a title="\u30c6\u30b9\u30c8" href="\u30c6\u30b9\u30c8.html">', |
| [("starttag", "a", [("title", u"\u30c6\u30b9\u30c8"), |
| ("href", u"\u30c6\u30b9\u30c8.html")])]) |
| |
| def test_attr_entity_replacement(self): |
| self._run_check( |
| "<a b='&><"''>", |
| [("starttag", "a", [("b", "&><\"'")])]) |
| |
| def test_attr_funky_names(self): |
| self._run_check( |
| "<a a.b='v' c:d=v e-f=v>", |
| [("starttag", "a", [("a.b", "v"), ("c:d", "v"), ("e-f", "v")])]) |
| self._run_check( |
| "<a $><b $=%><c \=/>", |
| [("starttag", "a", [("$", None)]), |
| ("starttag", "b", [("$", "%")]), |
| ("starttag", "c", [("\\", "/")])]) |
| |
| def test_entityrefs_in_attributes(self): |
| self._run_check( |
| "<html foo='€&aa&unsupported;'>", |
| [("starttag", "html", [("foo", u"\u20AC&aa&unsupported;")])]) |
| |
| def test_entities_in_attribute_value(self): |
| # see #1200313 |
| for entity in ['&', '&', '&', '&']: |
| self._run_check('<a href="%s">' % entity, |
| [("starttag", "a", [("href", "&")])]) |
| self._run_check("<a href='%s'>" % entity, |
| [("starttag", "a", [("href", "&")])]) |
| self._run_check("<a href=%s>" % entity, |
| [("starttag", "a", [("href", "&")])]) |
| |
| def test_malformed_attributes(self): |
| # see #13357 |
| html = ( |
| "<a href=test'style='color:red;bad1'>test - bad1</a>" |
| "<a href=test'+style='color:red;ba2'>test - bad2</a>" |
| "<a href=test' style='color:red;bad3'>test - bad3</a>" |
| "<a href = test' style='color:red;bad4' >test - bad4</a>" |
| ) |
| expected = [ |
| ('starttag', 'a', [('href', "test'style='color:red;bad1'")]), |
| ('data', 'test - bad1'), ('endtag', 'a'), |
| ('starttag', 'a', [('href', "test'+style='color:red;ba2'")]), |
| ('data', 'test - bad2'), ('endtag', 'a'), |
| ('starttag', 'a', [('href', u"test'\xa0style='color:red;bad3'")]), |
| ('data', 'test - bad3'), ('endtag', 'a'), |
| ('starttag', 'a', [('href', u"test'\xa0style='color:red;bad4'")]), |
| ('data', 'test - bad4'), ('endtag', 'a') |
| ] |
| self._run_check(html, expected) |
| |
| def test_malformed_adjacent_attributes(self): |
| # see #12629 |
| self._run_check('<x><y z=""o"" /></x>', |
| [('starttag', 'x', []), |
| ('startendtag', 'y', [('z', ''), ('o""', None)]), |
| ('endtag', 'x')]) |
| self._run_check('<x><y z="""" /></x>', |
| [('starttag', 'x', []), |
| ('startendtag', 'y', [('z', ''), ('""', None)]), |
| ('endtag', 'x')]) |
| |
| # see #755670 for the following 3 tests |
| def test_adjacent_attributes(self): |
| self._run_check('<a width="100%"cellspacing=0>', |
| [("starttag", "a", |
| [("width", "100%"), ("cellspacing","0")])]) |
| |
| self._run_check('<a id="foo"class="bar">', |
| [("starttag", "a", |
| [("id", "foo"), ("class","bar")])]) |
| |
| def test_missing_attribute_value(self): |
| self._run_check('<a v=>', |
| [("starttag", "a", [("v", "")])]) |
| |
| def test_javascript_attribute_value(self): |
| self._run_check("<a href=javascript:popup('/popup/help.html')>", |
| [("starttag", "a", |
| [("href", "javascript:popup('/popup/help.html')")])]) |
| |
| def test_end_tag_in_attribute_value(self): |
| # see #1745761 |
| self._run_check("<a href='http://www.example.org/\">;'>spam</a>", |
| [("starttag", "a", |
| [("href", "http://www.example.org/\">;")]), |
| ("data", "spam"), ("endtag", "a")]) |
| |
| |
| def test_main(): |
| test_support.run_unittest(HTMLParserTestCase, AttributesTestCase) |
| |
| |
| if __name__ == "__main__": |
| test_main() |