mirror of https://github.com/python/cpython
459 lines
17 KiB
Python
459 lines
17 KiB
Python
"""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()
|