/
test_tokenizer.rb
213 lines (187 loc) · 6.17 KB
/
test_tokenizer.rb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
# -*- coding: utf-8 -*-
# frozen_string_literal: true
require "helper"
module Nokogiri
module CSS
class Tokenizer
alias_method :scan, :scan_setup
end
end
end
module Nokogiri
module CSS
class TestTokenizer < Nokogiri::TestCase
def setup
super
@scanner = Nokogiri::CSS::Tokenizer.new
end
def assert_tokens(tokens, scanner)
toks = []
while (tok = @scanner.next_token)
toks << tok
end
assert_equal(tokens, toks)
end
def test_has
@scanner.scan("a:has(b)")
assert_tokens(
[[:IDENT, "a"], [":", ":"], [:HAS, "has("], [:IDENT, "b"], [:RPAREN, ")"]],
@scanner
)
end
def test_unicode
@scanner.scan("a日本語")
assert_tokens([[:IDENT, "a日本語"]], @scanner)
end
def test_tokenize_bad_single_quote
@scanner.scan("'")
assert_tokens([["'", "'"]], @scanner)
end
def test_not_equal
@scanner.scan("h1[a!='Tender Lovemaking']")
assert_tokens([[:IDENT, "h1"],
[:LSQUARE, "["],
[:IDENT, "a"],
[:NOT_EQUAL, "!="],
[:STRING, "'Tender Lovemaking'"],
[:RSQUARE, "]"],], @scanner)
end
def test_negation
@scanner.scan("p:not(.a)")
assert_tokens([[:IDENT, "p"],
[:NOT, ":not("],
[".", "."],
[:IDENT, "a"],
[:RPAREN, ")"],], @scanner)
end
def test_function
@scanner.scan("script comment()")
assert_tokens([[:IDENT, "script"],
[:S, " "],
[:FUNCTION, "comment("],
[:RPAREN, ")"],], @scanner)
end
def test_preceding_selector
@scanner.scan("E ~ F")
assert_tokens([[:IDENT, "E"],
[:TILDE, " ~ "],
[:IDENT, "F"],], @scanner)
end
def test_scan_attribute_string
@scanner.scan("h1[a='Tender Lovemaking']")
assert_tokens([[:IDENT, "h1"],
[:LSQUARE, "["],
[:IDENT, "a"],
[:EQUAL, "="],
[:STRING, "'Tender Lovemaking'"],
[:RSQUARE, "]"],], @scanner)
@scanner.scan('h1[a="Tender Lovemaking"]')
assert_tokens([[:IDENT, "h1"],
[:LSQUARE, "["],
[:IDENT, "a"],
[:EQUAL, "="],
[:STRING, '"Tender Lovemaking"'],
[:RSQUARE, "]"],], @scanner)
end
def test_scan_id
@scanner.scan("#foo")
assert_tokens([[:HASH, "#foo"]], @scanner)
end
def test_scan_pseudo
@scanner.scan("a:visited")
assert_tokens([[:IDENT, "a"],
[":", ":"],
[:IDENT, "visited"],], @scanner)
end
def test_scan_star
@scanner.scan("*")
assert_tokens([["*", "*"]], @scanner)
end
def test_scan_class
@scanner.scan("x.awesome")
assert_tokens([[:IDENT, "x"],
[".", "."],
[:IDENT, "awesome"],], @scanner)
end
def test_scan_greater
@scanner.scan("x > y")
assert_tokens([[:IDENT, "x"],
[:GREATER, " > "],
[:IDENT, "y"],], @scanner)
end
def test_scan_slash
@scanner.scan("x/y")
assert_tokens([[:IDENT, "x"],
[:SLASH, "/"],
[:IDENT, "y"],], @scanner)
end
def test_scan_doubleslash
@scanner.scan("x//y")
assert_tokens([[:IDENT, "x"],
[:DOUBLESLASH, "//"],
[:IDENT, "y"],], @scanner)
end
def test_scan_function_selector
@scanner.scan("x:eq(0)")
assert_tokens([[:IDENT, "x"],
[":", ":"],
[:FUNCTION, "eq("],
[:NUMBER, "0"],
[:RPAREN, ")"],], @scanner)
end
def test_scan_nth
@scanner.scan("x:nth-child(5n+3)")
assert_tokens([[:IDENT, "x"],
[":", ":"],
[:FUNCTION, "nth-child("],
[:NUMBER, "5"],
[:IDENT, "n"],
[:PLUS, "+"],
[:NUMBER, "3"],
[:RPAREN, ")"],], @scanner)
@scanner.scan("x:nth-child(-1n+3)")
assert_tokens([[:IDENT, "x"],
[":", ":"],
[:FUNCTION, "nth-child("],
[:NUMBER, "-1"],
[:IDENT, "n"],
[:PLUS, "+"],
[:NUMBER, "3"],
[:RPAREN, ")"],], @scanner)
@scanner.scan("x:nth-child(-n+3)")
assert_tokens([[:IDENT, "x"],
[":", ":"],
[:FUNCTION, "nth-child("],
[:IDENT, "-n"],
[:PLUS, "+"],
[:NUMBER, "3"],
[:RPAREN, ")"],], @scanner)
end
def test_significant_space
@scanner.scan("x :first-child [a] [b]")
assert_tokens([[:IDENT, "x"],
[:S, " "],
[":", ":"],
[:IDENT, "first-child"],
[:S, " "],
[:LSQUARE, "["],
[:IDENT, "a"],
[:RSQUARE, "]"],
[:S, " "],
[:LSQUARE, "["],
[:IDENT, "b"],
[:RSQUARE, "]"],], @scanner)
end
def test_xpath_attributes
@scanner.scan("a/@href")
assert_tokens([[:IDENT, "a"], [:SLASH, "/"], ["@", "@"], [:IDENT, "href"]],
@scanner)
end
def test_xpath_functions
@scanner.scan("a/text()")
assert_tokens([[:IDENT, "a"], [:SLASH, "/"], [:FUNCTION, "text("], [:RPAREN, ")"]],
@scanner)
end
end
end
end