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- """Tests for HTMLParser.py."""
-
- import HTMLParser
- import pprint
- import sys
- import test_support
- import unittest
-
-
- 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"),
- ])
-
- 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_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", "")]),
- ])
-
- 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")]),
- ])
-
- 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)
-
- 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")
- self._parse_error("<a foo='bar'")
- self._parse_error("<a foo='bar")
- self._parse_error("<a foo='>'")
- 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):
- s = """<script> <!-- not a comment --> ¬-an-entity-ref; </script>"""
- self._run_check(s, [
- ("starttag", "script", []),
- ("data", " <!-- not a comment --> ¬-an-entity-ref; "),
- ("endtag", "script"),
- ])
- s = """<script> <not a='start tag'> </script>"""
- self._run_check(s, [
- ("starttag", "script", []),
- ("data", " <not a='start tag'> "),
- ("endtag", "script"),
- ])
-
-
- def test_main():
- test_support.run_unittest(HTMLParserTestCase)
-
-
- if __name__ == "__main__":
- test_main()
-