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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
|
#!/usr/bin/env python
#
# Copyright 2012 The Closure Linter Authors. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS-IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Unit tests for the scopeutil module."""
# Allow non-Google copyright
# pylint: disable=g-bad-file-header
__author__ = ('nnaze@google.com (Nathan Naze)')
import unittest as googletest
from closure_linter import ecmametadatapass
from closure_linter import javascripttokens
from closure_linter import testutil
from closure_linter import tokenutil
class FakeToken(object):
pass
class TokenUtilTest(googletest.TestCase):
def testGetTokenRange(self):
a = FakeToken()
b = FakeToken()
c = FakeToken()
d = FakeToken()
e = FakeToken()
a.next = b
b.next = c
c.next = d
self.assertEquals([a, b, c, d], tokenutil.GetTokenRange(a, d))
# This is an error as e does not come after a in the token chain.
self.assertRaises(Exception, lambda: tokenutil.GetTokenRange(a, e))
def testTokensToString(self):
a = FakeToken()
b = FakeToken()
c = FakeToken()
d = FakeToken()
e = FakeToken()
a.string = 'aaa'
b.string = 'bbb'
c.string = 'ccc'
d.string = 'ddd'
e.string = 'eee'
a.line_number = 5
b.line_number = 6
c.line_number = 6
d.line_number = 10
e.line_number = 11
self.assertEquals(
'aaa\nbbbccc\n\n\n\nddd\neee',
tokenutil.TokensToString([a, b, c, d, e]))
self.assertEquals(
'ddd\neee\naaa\nbbbccc',
tokenutil.TokensToString([d, e, a, b, c]),
'Neighboring tokens not in line_number order should have a newline '
'between them.')
def testGetPreviousCodeToken(self):
tokens = testutil.TokenizeSource("""
start1. // comment
/* another comment */
end1
""")
def _GetTokenStartingWith(token_starts_with):
for t in tokens:
if t.string.startswith(token_starts_with):
return t
self.assertEquals(
None,
tokenutil.GetPreviousCodeToken(_GetTokenStartingWith('start1')))
self.assertEquals(
'.',
tokenutil.GetPreviousCodeToken(_GetTokenStartingWith('end1')).string)
self.assertEquals(
'start1',
tokenutil.GetPreviousCodeToken(_GetTokenStartingWith('.')).string)
def testGetNextCodeToken(self):
tokens = testutil.TokenizeSource("""
start1. // comment
/* another comment */
end1
""")
def _GetTokenStartingWith(token_starts_with):
for t in tokens:
if t.string.startswith(token_starts_with):
return t
self.assertEquals(
'.',
tokenutil.GetNextCodeToken(_GetTokenStartingWith('start1')).string)
self.assertEquals(
'end1',
tokenutil.GetNextCodeToken(_GetTokenStartingWith('.')).string)
self.assertEquals(
None,
tokenutil.GetNextCodeToken(_GetTokenStartingWith('end1')))
def testGetIdentifierStart(self):
tokens = testutil.TokenizeSource("""
start1 . // comment
prototype. /* another comment */
end1
['edge'][case].prototype.
end2 = function() {}
""")
def _GetTokenStartingWith(token_starts_with):
for t in tokens:
if t.string.startswith(token_starts_with):
return t
self.assertEquals(
'start1',
tokenutil.GetIdentifierStart(_GetTokenStartingWith('end1')).string)
self.assertEquals(
'start1',
tokenutil.GetIdentifierStart(_GetTokenStartingWith('start1')).string)
self.assertEquals(
None,
tokenutil.GetIdentifierStart(_GetTokenStartingWith('end2')))
def testInsertTokenBefore(self):
self.AssertInsertTokenAfterBefore(False)
def testInsertTokenAfter(self):
self.AssertInsertTokenAfterBefore(True)
def AssertInsertTokenAfterBefore(self, after):
new_token = javascripttokens.JavaScriptToken(
'a', javascripttokens.JavaScriptTokenType.IDENTIFIER, 1, 1)
existing_token1 = javascripttokens.JavaScriptToken(
'var', javascripttokens.JavaScriptTokenType.KEYWORD, 1, 1)
existing_token1.start_index = 0
existing_token1.metadata = ecmametadatapass.EcmaMetaData()
existing_token2 = javascripttokens.JavaScriptToken(
' ', javascripttokens.JavaScriptTokenType.WHITESPACE, 1, 1)
existing_token2.start_index = 3
existing_token2.metadata = ecmametadatapass.EcmaMetaData()
existing_token2.metadata.last_code = existing_token1
existing_token1.next = existing_token2
existing_token2.previous = existing_token1
if after:
tokenutil.InsertTokenAfter(new_token, existing_token1)
else:
tokenutil.InsertTokenBefore(new_token, existing_token2)
self.assertEquals(existing_token1, new_token.previous)
self.assertEquals(existing_token2, new_token.next)
self.assertEquals(new_token, existing_token1.next)
self.assertEquals(new_token, existing_token2.previous)
self.assertEquals(existing_token1, new_token.metadata.last_code)
self.assertEquals(new_token, existing_token2.metadata.last_code)
self.assertEquals(0, existing_token1.start_index)
self.assertEquals(3, new_token.start_index)
self.assertEquals(4, existing_token2.start_index)
def testGetIdentifierForToken(self):
tokens = testutil.TokenizeSource("""
start1.abc.def.prototype.
onContinuedLine
(start2.abc.def
.hij.klm
.nop)
start3.abc.def
.hij = function() {};
// An absurd multi-liner.
start4.abc.def.
hij.
klm = function() {};
start5 . aaa . bbb . ccc
shouldntBePartOfThePreviousSymbol
start6.abc.def ghi.shouldntBePartOfThePreviousSymbol
var start7 = 42;
function start8() {
}
start9.abc. // why is there a comment here?
def /* another comment */
shouldntBePart
start10.abc // why is there a comment here?
.def /* another comment */
shouldntBePart
start11.abc. middle1.shouldNotBeIdentifier
""")
def _GetTokenStartingWith(token_starts_with):
for t in tokens:
if t.string.startswith(token_starts_with):
return t
self.assertEquals(
'start1.abc.def.prototype.onContinuedLine',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start1')))
self.assertEquals(
'start2.abc.def.hij.klm.nop',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start2')))
self.assertEquals(
'start3.abc.def.hij',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start3')))
self.assertEquals(
'start4.abc.def.hij.klm',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start4')))
self.assertEquals(
'start5.aaa.bbb.ccc',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start5')))
self.assertEquals(
'start6.abc.def',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start6')))
self.assertEquals(
'start7',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start7')))
self.assertEquals(
'start8',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start8')))
self.assertEquals(
'start9.abc.def',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start9')))
self.assertEquals(
'start10.abc.def',
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('start10')))
self.assertIsNone(
tokenutil.GetIdentifierForToken(_GetTokenStartingWith('middle1')))
if __name__ == '__main__':
googletest.main()
|
