OILS / lazylex / html_test.py View on Github | oils.pub

293 lines, 187 significant
1#!/usr/bin/env python2
2from __future__ import print_function
3
4import unittest
5
6from lazylex import html # module under test log = html.log
7
8log = html.log
9
10with open('lazylex/testdata.html') as f:
11 TEST_HTML = f.read()
12
13
14def _MakeTagLexer(s):
15 lex = html.TagLexer(s)
16 lex.Reset(0, len(s))
17 return lex
18
19
20def _PrintTokens(lex):
21 log('')
22 log('tag = %r', lex.TagName())
23 for tok, start, end in lex.Tokens():
24 log('%s %r', tok, lex.s[start:end])
25
26
27class RegexTest(unittest.TestCase):
28
29 def testDotAll(self):
30 import re
31
32 # Note that $ matches end of line, not end of string
33 p1 = re.compile(r'.')
34 print(p1.match('\n'))
35
36 p2 = re.compile(r'.', re.DOTALL)
37 print(p2.match('\n'))
38
39 #p3 = re.compile(r'[.\n]', re.VERBOSE)
40 p3 = re.compile(r'[.\n]')
41 print(p3.match('\n'))
42
43 print('Negation')
44
45 p4 = re.compile(r'[^>]')
46 print(p4.match('\n'))
47
48
49class FunctionsTest(unittest.TestCase):
50
51 def testFindLineNum(self):
52 s = 'foo\n' * 3
53 for pos in [1, 5, 10, 50]: # out of bounds
54 line_num = html.FindLineNum(s, pos)
55 print(line_num)
56
57
58class TagLexerTest(unittest.TestCase):
59
60 def testTagLexer(self):
61 # Invalid!
62 #lex = _MakeTagLexer('< >')
63 #print(lex.Tag())
64
65 lex = _MakeTagLexer('<a>')
66 _PrintTokens(lex)
67
68 lex = _MakeTagLexer('<a novalue>')
69 _PrintTokens(lex)
70
71 # Note: we could have a different HasAttr() method
72 # <a novalue> means lex.Get('novalue') == None
73 # https://developer.mozilla.org/en-US/docs/Web/API/Element/hasAttribute
74 self.assertEqual(None, lex.GetAttrRaw('novalue'))
75
76 lex = _MakeTagLexer('<a href="double quoted">')
77 _PrintTokens(lex)
78
79 self.assertEqual('double quoted', lex.GetAttrRaw('href'))
80 self.assertEqual(None, lex.GetAttrRaw('oops'))
81
82 lex = _MakeTagLexer('<a href=foo class="bar">')
83 _PrintTokens(lex)
84
85 lex = _MakeTagLexer('<a href=foo class="bar" />')
86 _PrintTokens(lex)
87
88 lex = _MakeTagLexer('<a href="?foo=1&amp;bar=2" />')
89 self.assertEqual('?foo=1&amp;bar=2', lex.GetAttrRaw('href'))
90
91 def testTagName(self):
92 lex = _MakeTagLexer('<a href=foo class="bar" />')
93 self.assertEqual('a', lex.TagName())
94
95 def testAllAttrs(self):
96 """
97 [('key', 'value')] for all
98 """
99 # closed
100 lex = _MakeTagLexer('<a href=foo class="bar" />')
101 self.assertEqual([('href', 'foo'), ('class', 'bar')],
102 lex.AllAttrsRaw())
103
104 lex = _MakeTagLexer('<a href="?foo=1&amp;bar=2" />')
105 self.assertEqual([('href', '?foo=1&amp;bar=2')], lex.AllAttrsRaw())
106
107
108def Lex(h):
109 print(repr(h))
110 lex = html.ValidTokens(h)
111 tokens = list(lex)
112 start_pos = 0
113 for tok_id, end_pos in tokens:
114 frag = h[start_pos:end_pos]
115 log('%d %s %r', end_pos, html.TokenName(tok_id), frag)
116 start_pos = end_pos
117 return tokens
118
119
120class LexerTest(unittest.TestCase):
121
122 # IndexLinker in devtools/make_help.py
123 # <pre> sections in doc/html_help.py
124 # TocExtractor in devtools/cmark.py
125
126 def testPstrip(self):
127 """Remove anything like this.
128
129 <p><pstrip> </pstrip></p>
130 """
131 pass
132
133 def testCommentParse(self):
134 n = len(TEST_HTML)
135 for tok_id, end_pos in html._Tokens(TEST_HTML, 0, n):
136 if tok_id == html.Invalid:
137 raise RuntimeError()
138 print(tok_id)
139
140 def testCommentParse2(self):
141
142 Tok = html.Tok
143 h = '''
144 hi <!-- line 1
145 line 2 --><br/>'''
146 tokens = Lex(h)
147
148 self.assertEqual(
149 [
150 (Tok.RawData, 12),
151 (Tok.Comment, 50), # <? err ?>
152 (Tok.StartEndTag, 55),
153 (Tok.EndOfStream, 55),
154 ],
155 tokens)
156
157 def testProcessingInstruction(self):
158 # <?xml ?> header
159 Tok = html.Tok
160 h = 'hi <? err ?>'
161 tokens = Lex(h)
162
163 self.assertEqual(
164 [
165 (Tok.RawData, 3),
166 (Tok.Processing, 12), # <? err ?>
167 (Tok.EndOfStream, 12),
168 ],
169 tokens)
170
171 def testScriptStyle(self):
172 Tok = html.Tok
173 h = '''
174 hi <script src=""> if (x < 1 && y > 2 ) { console.log(""); }
175 </script>
176 '''
177 tokens = Lex(h)
178
179 self.assertEqual(
180 [
181 (Tok.RawData, 12),
182 (Tok.StartTag, 27), # <script>
183 (Tok.HtmlCData, 78), # JavaScript code is HTML CData
184 (Tok.EndTag, 87), # </script>
185 (Tok.RawData, 96), # \n
186 (Tok.EndOfStream, 96), # \n
187 ],
188 tokens)
189
190 def testCData(self):
191 Tok = html.Tok
192
193 # from
194 # /home/andy/src/languages/Python-3.11.5/Lib/test/xmltestdata/c14n-20/inC14N4.xml
195 h = '<compute><![CDATA[value>"0" && value<"10" ?"valid":"error"]]></compute>'
196 tokens = Lex(h)
197
198 self.assertEqual([
199 (Tok.StartTag, 9),
200 (Tok.CData, 61),
201 (Tok.EndTag, 71),
202 (Tok.EndOfStream, 71),
203 ], tokens)
204
205 def testEntity(self):
206 Tok = html.Tok
207
208 # from
209 # /home/andy/src/Python-3.12.4/Lib/test/xmltestdata/c14n-20/inC14N5.xml
210 h = '&ent1;, &ent2;!'
211
212 tokens = Lex(h)
213
214 self.assertEqual([
215 (Tok.CharEntity, 6),
216 (Tok.RawData, 8),
217 (Tok.CharEntity, 14),
218 (Tok.RawData, 15),
219 (Tok.EndOfStream, 15),
220 ], tokens)
221
222 def testStartTag(self):
223 Tok = html.Tok
224
225 h = '<a>hi</a>'
226 tokens = Lex(h)
227
228 self.assertEqual([
229 (Tok.StartTag, 3),
230 (Tok.RawData, 5),
231 (Tok.EndTag, 9),
232 (Tok.EndOfStream, 9),
233 ], tokens)
234
235 # Make sure we don't consume too much
236 h = '<a><source>1.7</source></a>'
237
238 tokens = Lex(h)
239
240 self.assertEqual([
241 (Tok.StartTag, 3),
242 (Tok.StartTag, 11),
243 (Tok.RawData, 14),
244 (Tok.EndTag, 23),
245 (Tok.EndTag, 27),
246 (Tok.EndOfStream, 27),
247 ], tokens)
248
249 return
250
251 h = '''
252 <configuration>
253 <source>1.7</source>
254 </configuration>'''
255
256 tokens = Lex(h)
257
258 self.assertEqual([
259 (Tok.RawData, 9),
260 (Tok.StartTag, 24),
261 (Tok.RawData, 9),
262 (Tok.EndOfStream, 9),
263 ], tokens)
264
265 def testInvalid(self):
266 Tok = html.Tok
267
268 INVALID = [
269 # Should be &amp;
270 '<a>&',
271 '&amp', # not finished
272 '&#', # not finished
273 # Hm > is allowed?
274 #'a > b',
275 'a < b',
276 '<!-- unfinished comment',
277 '<? unfinished processing',
278 '</div bad=attr> <a> <b>',
279 ]
280
281 for s in INVALID:
282 lex = html.ValidTokens(s)
283 try:
284 for i in xrange(5):
285 tok_id, pos = next(lex)
286 except html.LexError as e:
287 print(e)
288 else:
289 self.fail('Expected LexError')
290
291
292if __name__ == '__main__':
293 unittest.main()