| 1 | #!/usr/bin/env python2
|
| 2 | from __future__ import print_function
|
| 3 |
|
| 4 | import unittest
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| 5 |
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| 6 | from _devbuild.gen.htm8_asdl import h8_id, h8_id_str
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| 7 | from data_lang import htm8
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| 8 | from lazylex import html # module under test log = html.log
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| 9 |
|
| 10 | from typing import List, Tuple
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| 11 |
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| 12 | log = html.log
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| 13 |
|
| 14 | with open('data_lang/testdata/hello.htm8') as f:
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| 15 | TEST_HTML = f.read()
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| 16 |
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| 17 |
|
| 18 | class RegexTest(unittest.TestCase):
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| 19 |
|
| 20 | def testDotAll(self):
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| 21 | # type: () -> None
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| 22 | import re
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| 23 |
|
| 24 | # Note that $ matches end of line, not end of string
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| 25 | p1 = re.compile(r'.')
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| 26 | print(p1.match('\n'))
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| 27 |
|
| 28 | p2 = re.compile(r'.', re.DOTALL)
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| 29 | print(p2.match('\n'))
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| 30 |
|
| 31 | #p3 = re.compile(r'[.\n]', re.VERBOSE)
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| 32 | p3 = re.compile(r'[.\n]')
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| 33 | print(p3.match('\n'))
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| 34 |
|
| 35 | print('Negation')
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| 36 |
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| 37 | p4 = re.compile(r'[^>]')
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| 38 | print(p4.match('\n'))
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| 39 |
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| 40 | def testAttrRe(self):
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| 41 | # type: () -> None
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| 42 | _ATTR_RE = htm8._ATTR_RE
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| 43 | m = _ATTR_RE.match(' empty= val')
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| 44 | print(m.groups())
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| 45 |
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| 46 |
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| 47 | class FunctionsTest(unittest.TestCase):
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| 48 |
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| 49 | def testFindLineNum(self):
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| 50 | # type: () -> None
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| 51 | s = 'foo\n' * 3
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| 52 | for pos in [1, 5, 10, 50]: # out of bounds
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| 53 | line_num = htm8.FindLineNum(s, pos)
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| 54 | print(line_num)
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| 55 |
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| 56 | def testToText(self):
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| 57 | # type: () -> None
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| 58 | t = html.ToText('<b name="&"> three < four && five </b>')
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| 59 | self.assertEqual(' three < four && five ', t)
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| 60 |
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| 61 |
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| 62 | def _MakeTagLexer(s):
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| 63 | # type: (str) -> html.TagLexer
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| 64 | lex = html.TagLexer(s)
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| 65 | lex.Reset(0, len(s))
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| 66 | return lex
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| 67 |
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| 68 |
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| 69 | def _PrintTokens(lex):
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| 70 | # type: (html.TagLexer) -> None
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| 71 | log('')
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| 72 | log('tag = %r', lex.GetTagName())
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| 73 | for tok, start, end in lex.Tokens():
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| 74 | log('%s %r', tok, lex.s[start:end])
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| 75 |
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| 76 |
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| 77 | class TagLexerTest(unittest.TestCase):
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| 78 |
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| 79 | def testTagLexer(self):
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| 80 | # type: () -> None
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| 81 | # Invalid!
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| 82 | #lex = _MakeTagLexer('< >')
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| 83 | #print(lex.Tag())
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| 84 |
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| 85 | lex = _MakeTagLexer('<a>')
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| 86 | _PrintTokens(lex)
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| 87 |
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| 88 | lex = _MakeTagLexer('<a novalue>')
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| 89 | _PrintTokens(lex)
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| 90 |
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| 91 | # Note: we could have a different HasAttr() method
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| 92 | # <a novalue> means lex.Get('novalue') == ''
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| 93 | # https://developer.mozilla.org/en-US/docs/Web/API/Element/hasAttribute
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| 94 | self.assertEqual('', lex.GetAttrRaw('novalue'))
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| 95 |
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| 96 | lex = _MakeTagLexer('<a href="double quoted">')
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| 97 | _PrintTokens(lex)
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| 98 |
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| 99 | self.assertEqual('double quoted', lex.GetAttrRaw('href'))
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| 100 | self.assertEqual(None, lex.GetAttrRaw('oops'))
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| 101 |
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| 102 | lex = _MakeTagLexer('<a href=foo class="bar">')
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| 103 | _PrintTokens(lex)
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| 104 |
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| 105 | lex = _MakeTagLexer('<a href=foo class="bar" />')
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| 106 | _PrintTokens(lex)
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| 107 |
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| 108 | lex = _MakeTagLexer('<a href="?foo=1&bar=2" />')
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| 109 | self.assertEqual('?foo=1&bar=2', lex.GetAttrRaw('href'))
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| 110 |
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| 111 | def testTagName(self):
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| 112 | # type: () -> None
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| 113 | lex = _MakeTagLexer('<a href=foo class="bar" />')
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| 114 | self.assertEqual('a', lex.GetTagName())
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| 115 |
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| 116 | def testAllAttrs(self):
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| 117 | # type: () -> None
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| 118 | """
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| 119 | [('key', 'value')] for all
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| 120 | """
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| 121 | # closed
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| 122 | lex = _MakeTagLexer('<a href=foo class="bar" />')
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| 123 | self.assertEqual([('href', 'foo'), ('class', 'bar')],
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| 124 | lex.AllAttrsRaw())
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| 125 |
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| 126 | lex = _MakeTagLexer('<a href="?foo=1&bar=2" />')
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| 127 | self.assertEqual([('href', '?foo=1&bar=2')], lex.AllAttrsRaw())
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| 128 |
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| 129 | def testEmptyMissingValues(self):
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| 130 | # type: () -> None
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| 131 | # equivalent to <button disabled="">
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| 132 | lex = _MakeTagLexer('<button disabled>')
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| 133 | all_attrs = lex.AllAttrsRaw()
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| 134 | self.assertEqual([('disabled', '')], all_attrs)
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| 135 |
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| 136 | slices = lex.AllAttrsRawSlice()
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| 137 | log('slices %s', slices)
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| 138 |
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| 139 | lex = _MakeTagLexer(
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| 140 | '''<p double="" single='' empty= value missing empty2=>''')
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| 141 | all_attrs = lex.AllAttrsRaw()
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| 142 | self.assertEqual([
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| 143 | ('double', ''),
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| 144 | ('single', ''),
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| 145 | ('empty', 'value'),
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| 146 | ('missing', ''),
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| 147 | ('empty2', ''),
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| 148 | ], all_attrs)
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| 149 | # TODO: should have
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| 150 | log('all %s', all_attrs)
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| 151 |
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| 152 | slices = lex.AllAttrsRawSlice()
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| 153 | log('slices %s', slices)
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| 154 |
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| 155 | def testInvalidTag(self):
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| 156 | # type: () -> None
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| 157 | try:
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| 158 | lex = _MakeTagLexer('<a foo=bar !></a>')
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| 159 | all_attrs = lex.AllAttrsRaw()
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| 160 | except html.LexError as e:
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| 161 | print(e)
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| 162 | else:
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| 163 | self.fail('Expected LexError')
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| 164 |
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| 165 |
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| 166 | def _MakeAttrValueLexer(s):
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| 167 | # type: (str) -> html.AttrValueLexer
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| 168 | lex = html.AttrValueLexer(s)
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| 169 | lex.Reset(0, len(s))
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| 170 | return lex
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| 171 |
|
| 172 |
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| 173 | class AttrValueLexerTest(unittest.TestCase):
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| 174 |
|
| 175 | def testGood(self):
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| 176 | # type: () -> None
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| 177 | lex = _MakeAttrValueLexer('?foo=42&bar=99')
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| 178 | n = lex.NumTokens()
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| 179 | self.assertEqual(3, n)
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| 180 |
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| 181 |
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| 182 | def Lex(h, no_special_tags=False):
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| 183 | # type: (str, bool) -> List[Tuple[int, int]]
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| 184 | print(repr(h))
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| 185 | tokens = html.ValidTokenList(h, no_special_tags=no_special_tags)
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| 186 | start_pos = 0
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| 187 | for tok_id, end_pos in tokens:
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| 188 | frag = h[start_pos:end_pos]
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| 189 | log('%d %s %r', end_pos, h8_id_str(tok_id), frag)
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| 190 | start_pos = end_pos
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| 191 | return tokens
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| 192 |
|
| 193 |
|
| 194 | class LexerTest(unittest.TestCase):
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| 195 |
|
| 196 | # IndexLinker in devtools/make_help.py
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| 197 | # <pre> sections in doc/html_help.py
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| 198 | # TocExtractor in devtools/cmark.py
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| 199 |
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| 200 | def testPstrip(self):
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| 201 | # type: () -> None
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| 202 | """Remove anything like this.
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| 203 |
|
| 204 | <p><pstrip> </pstrip></p>
|
| 205 | """
|
| 206 | pass
|
| 207 |
|
| 208 | def testCommentParse(self):
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| 209 | # type: () -> None
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| 210 | n = len(TEST_HTML)
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| 211 | tokens = Lex(TEST_HTML)
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| 212 |
|
| 213 | def testCommentParse2(self):
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| 214 | # type: () -> None
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| 215 | h = '''
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| 216 | hi <!-- line 1
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| 217 | line 2 --><br/>'''
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| 218 | tokens = Lex(h)
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| 219 |
|
| 220 | self.assertEqual(
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| 221 | [
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| 222 | (h8_id.RawData, 12),
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| 223 | (h8_id.Comment, 50), # <? err ?>
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| 224 | (h8_id.StartEndTag, 55),
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| 225 | (h8_id.EndOfStream, 55),
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| 226 | ],
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| 227 | tokens)
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| 228 |
|
| 229 | def testProcessingInstruction(self):
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| 230 | # type: () -> None
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| 231 | # <?xml ?> header
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| 232 | h = 'hi <? err ?>'
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| 233 | tokens = Lex(h)
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| 234 |
|
| 235 | self.assertEqual(
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| 236 | [
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| 237 | (h8_id.RawData, 3),
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| 238 | (h8_id.Processing, 12), # <? err ?>
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| 239 | (h8_id.EndOfStream, 12),
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| 240 | ],
|
| 241 | tokens)
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| 242 |
|
| 243 | def testScriptStyle(self):
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| 244 | # type: () -> None
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| 245 | h = '''
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| 246 | hi <script src=""> if (x < 1 && y > 2 ) { console.log(""); }
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| 247 | </script>
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| 248 | '''
|
| 249 | tokens = Lex(h)
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| 250 |
|
| 251 | expected = [
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| 252 | (h8_id.RawData, 12),
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| 253 | (h8_id.StartTag, 27), # <script>
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| 254 | (h8_id.HtmlCData, 78), # JavaScript code is HTML CData
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| 255 | (h8_id.EndTag, 87), # </script>
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| 256 | (h8_id.RawData, 96), # \n
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| 257 | (h8_id.EndOfStream, 96), # \n
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| 258 | ]
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| 259 | self.assertEqual(expected, tokens)
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| 260 |
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| 261 | # Test case matching
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| 262 | tokens = Lex(h.replace('script', 'scrIPT'))
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| 263 | self.assertEqual(expected, tokens)
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| 264 |
|
| 265 | def testScriptStyleXml(self):
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| 266 | # type: () -> None
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| 267 | h = 'hi <script src=""> < </script>'
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| 268 | # XML mode
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| 269 | tokens = Lex(h, no_special_tags=True)
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| 270 |
|
| 271 | self.assertEqual(
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| 272 | [
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| 273 | (h8_id.RawData, 3),
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| 274 | (h8_id.StartTag, 18), # <script>
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| 275 | (h8_id.RawData, 19), # space
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| 276 | (h8_id.CharEntity, 23), # </script>
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| 277 | (h8_id.RawData, 24), # \n
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| 278 | (h8_id.EndTag, 33), # \n
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| 279 | (h8_id.EndOfStream, 33), # \n
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| 280 | ],
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| 281 | tokens)
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| 282 |
|
| 283 | def testCData(self):
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| 284 | # type: () -> None
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| 285 |
|
| 286 | # from
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| 287 | # /home/andy/src/languages/Python-3.11.5/Lib/test/xmltestdata/c14n-20/inC14N4.xml
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| 288 | h = '<compute><![CDATA[value>"0" && value<"10" ?"valid":"error"]]></compute>'
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| 289 | tokens = Lex(h)
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| 290 |
|
| 291 | self.assertEqual([
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| 292 | (h8_id.StartTag, 9),
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| 293 | (h8_id.CData, 61),
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| 294 | (h8_id.EndTag, 71),
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| 295 | (h8_id.EndOfStream, 71),
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| 296 | ], tokens)
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| 297 |
|
| 298 | def testEntity(self):
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| 299 | # type: () -> None
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| 300 |
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| 301 | # from
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| 302 | # /home/andy/src/Python-3.12.4/Lib/test/xmltestdata/c14n-20/inC14N5.xml
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| 303 | h = '&ent1;, &ent2;!'
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| 304 |
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| 305 | tokens = Lex(h)
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| 306 |
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| 307 | self.assertEqual([
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| 308 | (h8_id.CharEntity, 6),
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| 309 | (h8_id.RawData, 8),
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| 310 | (h8_id.CharEntity, 14),
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| 311 | (h8_id.RawData, 15),
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| 312 | (h8_id.EndOfStream, 15),
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| 313 | ], tokens)
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| 314 |
|
| 315 | def testStartTag(self):
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| 316 | # type: () -> None
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| 317 |
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| 318 | h = '<a>hi</a>'
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| 319 | tokens = Lex(h)
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| 320 |
|
| 321 | self.assertEqual([
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| 322 | (h8_id.StartTag, 3),
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| 323 | (h8_id.RawData, 5),
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| 324 | (h8_id.EndTag, 9),
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| 325 | (h8_id.EndOfStream, 9),
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| 326 | ], tokens)
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| 327 |
|
| 328 | # Make sure we don't consume too much
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| 329 | h = '<a><source>1.7</source></a>'
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| 330 |
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| 331 | tokens = Lex(h)
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| 332 |
|
| 333 | self.assertEqual([
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| 334 | (h8_id.StartTag, 3),
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| 335 | (h8_id.StartTag, 11),
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| 336 | (h8_id.RawData, 14),
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| 337 | (h8_id.EndTag, 23),
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| 338 | (h8_id.EndTag, 27),
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| 339 | (h8_id.EndOfStream, 27),
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| 340 | ], tokens)
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| 341 |
|
| 342 | return
|
| 343 |
|
| 344 | h = '''
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| 345 | <configuration>
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| 346 | <source>1.7</source>
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| 347 | </configuration>'''
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| 348 |
|
| 349 | tokens = Lex(h)
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| 350 |
|
| 351 | self.assertEqual([
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| 352 | (h8_id.RawData, 9),
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| 353 | (h8_id.StartTag, 24),
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| 354 | (h8_id.RawData, 9),
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| 355 | (h8_id.EndOfStream, 9),
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| 356 | ], tokens)
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| 357 |
|
| 358 | def testBad(self):
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| 359 | # type: () -> None
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| 360 | h = '&'
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| 361 | tokens = Lex(h)
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| 362 |
|
| 363 | self.assertEqual([
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| 364 | (h8_id.BadAmpersand, 1),
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| 365 | (h8_id.EndOfStream, 1),
|
| 366 | ], tokens)
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| 367 |
|
| 368 | h = '>'
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| 369 | tokens = Lex(h)
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| 370 |
|
| 371 | self.assertEqual([
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| 372 | (h8_id.BadGreaterThan, 1),
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| 373 | (h8_id.EndOfStream, 1),
|
| 374 | ], tokens)
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| 375 |
|
| 376 | def testInvalid(self):
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| 377 | # type: () -> None
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| 378 | for s in INVALID_LEX:
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| 379 | try:
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| 380 | tokens = html.ValidTokenList(s)
|
| 381 | except html.LexError as e:
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| 382 | print(e)
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| 383 | else:
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| 384 | self.fail('Expected LexError %r' % s)
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| 385 |
|
| 386 | def testValid(self):
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| 387 | # type: () -> None
|
| 388 | for s, _ in VALID_LEX:
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| 389 | tokens = Lex(s)
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| 390 | print()
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| 391 |
|
| 392 |
|
| 393 | INVALID_LEX = [
|
| 394 | '<a><',
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| 395 | '&<',
|
| 396 | '&<',
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| 397 | # Hm > is allowed?
|
| 398 | #'a > b',
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| 399 | 'a < b',
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| 400 | '<!-- unfinished comment',
|
| 401 | '<? unfinished processing',
|
| 402 | '</div bad=attr> <a> <b>',
|
| 403 |
|
| 404 | # not allowed, but 3 > 4 is allowed
|
| 405 | '<a> 3 < 4 </a>',
|
| 406 | # Not a CDATA tag
|
| 407 | '<STYLEz><</STYLEz>',
|
| 408 | ]
|
| 409 |
|
| 410 | SKIP = 0
|
| 411 | UNCHANGED = 1
|
| 412 |
|
| 413 | VALID_LEX = [
|
| 414 | # TODO: convert these to XML
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| 415 | ('<foo></foo>', UNCHANGED),
|
| 416 | ('<foo x=y></foo>', ''),
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| 417 | #('<foo x="&"></foo>', '<foo x="&"></foo>'),
|
| 418 | ('<foo x="&"></foo>', ''),
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| 419 |
|
| 420 | # Allowed with BadAmpersand
|
| 421 | ('<p> x & y </p>', '<p> x & y </p>'),
|
| 422 | ]
|
| 423 |
|
| 424 | INVALID_PARSE = [
|
| 425 | '<a></b>',
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| 426 | '<a>', # missing closing tag
|
| 427 | '<meta></meta>', # this is a self-closing tag
|
| 428 | ]
|
| 429 |
|
| 430 | VALID_PARSE = [
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| 431 | ('<!DOCTYPE html>\n', ''),
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| 432 | ('<!DOCTYPE>', ''),
|
| 433 |
|
| 434 | # empty strings
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| 435 | ('<p x=""></p>', UNCHANGED),
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| 436 | ("<p x=''></p>", UNCHANGED),
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| 437 | ('<self-closing a="b" />', UNCHANGED),
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| 438 |
|
| 439 | # We could also normalize CDATA?
|
| 440 | # Note that CDATA has an escaping problem: you need to handle it ]]> with
|
| 441 | # concatenation. It just "pushes the problem around".
|
| 442 | # So I think it's better to use ONE kind of escaping, which is <
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| 443 | ('<script><![CDATA[ <wtf> >< ]]></script>', UNCHANGED),
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| 444 |
|
| 445 | # allowed, but 3 < 4 is not allowed
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| 446 | ('<a> 3 > 4 </a>', '<a> 3 > 4 </a>'),
|
| 447 | # allowed, but 3 > 4 is not allowed
|
| 448 | ('<p x="3 < 4"></p>', ''),
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| 449 | ('<b><a href="foo">link</a></b>', UNCHANGED),
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| 450 |
|
| 451 | # TODO: should be self-closing
|
| 452 | #('<meta><a></a>', '<meta/><a></a>'),
|
| 453 | ('<meta><a></a>', ''),
|
| 454 |
|
| 455 | # no attribute
|
| 456 | ('<button disabled></button>', ''),
|
| 457 | ('<button disabled=></button>', ''),
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| 458 | ('<button disabled= ></button>', ''),
|
| 459 |
|
| 460 | # single quoted is pretty common
|
| 461 | ("<a href='single'></a>", ''),
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| 462 |
|
| 463 | # Conceding to reality - I used these myself
|
| 464 | ('<a href=ble.sh></a>', ''),
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| 465 | ('<a href=foo.html></a>', ''),
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| 466 | ('<foo x="&"></foo>', ''),
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| 467 |
|
| 468 | # caps
|
| 469 | ('<foo></FOO>', ''),
|
| 470 | ('<Foo></fOO>', ''),
|
| 471 |
|
| 472 | # capital VOID tag
|
| 473 | ('<META><a></a>', ''),
|
| 474 | ('<script><</script>', ''),
|
| 475 | # matching
|
| 476 | ('<SCRipt><</SCRipt>', ''),
|
| 477 | ('<SCRIPT><</SCRIPT>', ''),
|
| 478 | ('<STYLE><</STYLE>', ''),
|
| 479 | #'<SCRipt><</script>',
|
| 480 |
|
| 481 | # Note: Python HTMLParser.py does DYNAMIC compilation of regex with re.I
|
| 482 | # flag to handle this! Gah I want something faster.
|
| 483 | #'<script><</SCRIPT>',
|
| 484 |
|
| 485 | # TODO: Test <svg> and <math> ?
|
| 486 | ]
|
| 487 |
|
| 488 | VALID_XML = [
|
| 489 | '<meta></meta>',
|
| 490 | ]
|
| 491 |
|
| 492 | INVALID_TAG_LEX = [
|
| 493 | # not allowed, but 3 < 4 is allowed
|
| 494 | '<p x="3 > 4"></p>',
|
| 495 | # same thing
|
| 496 | '<a href=">"></a>',
|
| 497 | '<a foo=bar !></a>', # bad attr
|
| 498 | ]
|
| 499 |
|
| 500 |
|
| 501 | class ValidateTest(unittest.TestCase):
|
| 502 |
|
| 503 | def testInvalid(self):
|
| 504 | # type: () -> None
|
| 505 | counters = html.Counters()
|
| 506 | for s in INVALID_LEX + INVALID_TAG_LEX:
|
| 507 | try:
|
| 508 | html.Validate(s, html.BALANCED_TAGS, counters)
|
| 509 | except html.LexError as e:
|
| 510 | print(e)
|
| 511 | else:
|
| 512 | self.fail('Expected LexError %r' % s)
|
| 513 |
|
| 514 | for s in INVALID_PARSE:
|
| 515 | try:
|
| 516 | html.Validate(s, html.BALANCED_TAGS, counters)
|
| 517 | except html.ParseError as e:
|
| 518 | print(e)
|
| 519 | else:
|
| 520 | self.fail('Expected ParseError')
|
| 521 |
|
| 522 | def testValid(self):
|
| 523 | # type: () -> None
|
| 524 | counters = html.Counters()
|
| 525 | for s, _ in VALID_PARSE:
|
| 526 | html.Validate(s, html.BALANCED_TAGS, counters)
|
| 527 | print('HTML5 %r' % s)
|
| 528 | #print('HTML5 attrs %r' % counters.debug_attrs)
|
| 529 |
|
| 530 | def testValidXml(self):
|
| 531 | # type: () -> None
|
| 532 | counters = html.Counters()
|
| 533 | for s in VALID_XML:
|
| 534 | html.Validate(s, html.BALANCED_TAGS | html.NO_SPECIAL_TAGS,
|
| 535 | counters)
|
| 536 | print('XML %r' % s)
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| 537 | #print('XML attrs %r' % counters.debug_attrs)
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| 538 |
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| 539 |
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| 540 | class XmlTest(unittest.TestCase):
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| 541 |
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| 542 | def testValid(self):
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| 543 | # type: () -> None
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| 544 | counters = html.Counters()
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| 545 | for h, expected_xml in VALID_LEX + VALID_PARSE:
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| 546 | actual = html.ToXml(h)
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| 547 | if expected_xml == UNCHANGED: # Unchanged
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| 548 | self.assertEqual(h, actual)
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| 549 | elif expected_xml == '': # Skip
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| 550 | pass
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| 551 | else:
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| 552 | self.assertEqual(expected_xml, actual)
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| 553 |
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| 554 |
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| 555 | if __name__ == '__main__':
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| 556 | unittest.main()
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