-
Notifications
You must be signed in to change notification settings - Fork 0
/
a4test.py
366 lines (275 loc) · 10.9 KB
/
a4test.py
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
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
# a4test.py
# Michelle Nelson, mhn29
# 11/2/14
""" Unit Test for Assignment A4"""
import cornelltest
import a4
# NEW ASSERT to help with testing
def assert_lists_equal(expected, received):
"""Helper function to verify that expected == received
Because of how lists work, we cannot say
cornelltest.assert_equals(expected, received)
The lists are different folders and the contents may be in a
different order. So instead, we break this down into several
tests, which we put here.
As always, we put the value that we expect on the left, and the
value being tested on the right (in parameter received).
Precondition: expected is a list"""
# Check received is a list of the right length
if list != type(received):
msg = 'assert_lists_equal: '+`received`+' is not a list'
cornelltest.quit_with_error(msg)
if len(expected) != len(received):
msg = ('assert_lists_equal: '+`received`+' does not have expected length'
+`len(expected)`)
cornelltest.quit_with_error(msg)
# Check each of the contents of expected
for item in expected:
if not item in received:
msg = 'assert_lists_equal: '+`received`+' is missing element '+`item`
cornelltest.quit_with_error(msg)
# Test Procedures
def test_build_word_list():
"""Test function build_word_list"""
print 'Testing build_word_list'
words = a4.build_word_list('short.txt')
expected = ['the', 'be','to','of','and','a','in','that','have','it']
assert_lists_equal(expected, words)
def test_word_list_by_size():
"""Test function word_list_by_size"""
print 'Testing word_list_by_size'
# Make the word list
words = ['the', 'be','to','of','and','a','in','that','have','it']
# Call the function
other = a4.word_list_by_size(words, 2)
# Compare to what we expect
expected = ['be','to','of','in','it']
assert_lists_equal(expected, other)
words = []
other = a4.word_list_by_size(words,2)
expected = []
assert_lists_equal(expected, other)
words = ['the', 'be','to','of','and','a','in','that','have','it']
other = a4.word_list_by_size(words,0)
expected = []
assert_lists_equal(expected, other)
words = ['the', 'be','to','of','and','a','in','that','have','it']
other = a4.word_list_by_size(words,5)
expected = []
assert_lists_equal(expected, other)
def test_word_list_extend():
"""Test function word_list_extend"""
print 'Testing word_list_extend'
# Create a short word list
words = ['o', 'at', 'ong']
# Call the function
other = a4.word_list_extend(words, 's')
# Compare to what we expect
expected = ['so','sat','song']
assert_lists_equal(expected, other)
# Verify that we DID NOT change words
assert_lists_equal(['o', 'at', 'ong'], words)
# Do this one more time with a prefix that is more than one letter
other = a4.word_list_extend(words, 'pr')
# Verify that we loaded the right number of words
expected = ['pro','prat','prong']
assert_lists_equal(expected, other)
def test_pmap_add_word():
"""Test function pmap_add_word"""
print 'Testing pmap_add_word'
# Start with an empty prefix map
pmap = {}
a4.pmap_add_word(pmap,'a')
# Verify that pmap now has two keys (space and 'a')
# Note use of helper to make this test easier to read
cornelltest.assert_equals(2, len(pmap))
cornelltest.assert_true('' in pmap)
assert_lists_equal(['a'], pmap[''])
cornelltest.assert_true('a' in pmap)
assert_lists_equal([''], pmap['a'])
# Add something with two letters
a4.pmap_add_word(pmap,'by')
# Verify the keys again
cornelltest.assert_equals(4, len(pmap))
cornelltest.assert_true('' in pmap)
assert_lists_equal(['a','b'], pmap[''])
cornelltest.assert_true('a' in pmap)
assert_lists_equal([''], pmap['a'])
cornelltest.assert_true('b' in pmap)
assert_lists_equal(['y'], pmap['b'])
cornelltest.assert_true('by' in pmap)
assert_lists_equal([''], pmap['by'])
# One last time with overlap
a4.pmap_add_word(pmap,'at')
# Verify the keys again
cornelltest.assert_equals(5, len(pmap))
cornelltest.assert_true('' in pmap)
assert_lists_equal(['a','b'], pmap[''])
cornelltest.assert_true('a' in pmap)
assert_lists_equal(['','t'], pmap['a'])
cornelltest.assert_true('at' in pmap)
assert_lists_equal([''], pmap['at'])
cornelltest.assert_true('b' in pmap)
assert_lists_equal(['y'], pmap['b'])
cornelltest.assert_true('by' in pmap)
assert_lists_equal([''], pmap['by'])
a4.pmap_add_word(pmap,'that')
cornelltest.assert_true('that' in pmap)
cornelltest.assert_true('' in pmap['that'])
a4.pmap_add_word(pmap,'goop')
cornelltest.assert_true('goop' in pmap)
cornelltest.assert_true('o' in pmap['go'])
cornelltest.assert_true('p' in pmap['goo'])
def test_word_list_to_pmap():
"""Test function word_list_to_pmap"""
print 'Testing function word_list_to_pmap'
# Start with an empty word list
words = []
pmap = a4.word_list_to_pmap(words)
# Should be empty dictionary
cornelltest.assert_equals(dict, type(pmap))
cornelltest.assert_equals(0, len(pmap))
# One word, two letters
words = ['at']
pmap = a4.word_list_to_pmap(words)
# Similar test format to pmap_add_word
cornelltest.assert_equals(3, len(pmap))
assert_lists_equal(['a'], pmap[''])
cornelltest.assert_true('a' in pmap)
assert_lists_equal(['t'], pmap['a'])
cornelltest.assert_true('at' in pmap)
assert_lists_equal([''], pmap['at'])
# Several words
words = ['at', 'by', 'a']
pmap = a4.word_list_to_pmap(words)
# Similar test format to pmap_add_word
cornelltest.assert_equals(5, len(pmap))
cornelltest.assert_true('' in pmap)
assert_lists_equal(['a','b'], pmap[''])
cornelltest.assert_true('a' in pmap)
assert_lists_equal(['','t'], pmap['a'])
cornelltest.assert_true('at' in pmap)
assert_lists_equal([''], pmap['at'])
cornelltest.assert_true('b' in pmap)
assert_lists_equal(['y'], pmap['b'])
cornelltest.assert_true('by' in pmap)
assert_lists_equal([''], pmap['by'])
def test_pmap_to_word_list():
"""Test function pmap_to_word_list"""
print 'Testing function pmap_to_word_list'
# Start with an empty prefix map
pmap = {}
words = a4.pmap_to_word_list(pmap)
# Should be empty list
cornelltest.assert_equals(list, type(words))
cornelltest.assert_equals(0, len(words))
# Build a pmap manually
pmap = { '':['a'], 'a':['','t'], 'at':[''] }
words = a4.pmap_to_word_list(pmap)
assert_lists_equal(['a', 'at'], words)
# See if we can go back and forth
expected = ['the', 'be','to','of','and','a','in','that','have','it']
pmap = a4.word_list_to_pmap(expected)
words = a4.pmap_to_word_list(pmap)
assert_lists_equal(expected, words)
def test_pmap_has_word():
"""Test function pmap_has_word"""
print 'Testing function pmap_has_word'
# Start with an empty prefix map
pmap = {}
cornelltest.assert_false(a4.pmap_has_word(pmap, 'a'))
# Build a pmap manually
pmap = { '':['a'], 'a':['','t'], 'at':[''] }
cornelltest.assert_false(a4.pmap_has_word(pmap, '')) # NOT A WORD
cornelltest.assert_false(a4.pmap_has_word(pmap, 'by'))
cornelltest.assert_true(a4.pmap_has_word(pmap, 'a'))
cornelltest.assert_true(a4.pmap_has_word(pmap, 'at'))
def test_autocomplete():
"""Test search function autocomplete"""
print 'Testing function autocomplete'
pmap = {}
words = a4.autocomplete('a',pmap)
assert_lists_equal([], words)
pmap = { '':['a'], 'a':['']}
words = a4.autocomplete('a',pmap)
assert_lists_equal(['a'], words)
words = a4.autocomplete('',pmap)
assert_lists_equal(['a'], words)
words = a4.autocomplete('m',pmap)
assert_lists_equal([], words)
pmap = { '':['a'], 'a':['','t'], 'at':[''] }
words = a4.autocomplete('a',pmap)
assert_lists_equal(['a','at'], words)
words = a4.autocomplete('at',pmap)
assert_lists_equal(['at'], words)
pmap = { '':['a'], 'a':['','t','r'], 'at':[''], 'ar':['e'], 'are':[''] }
words = a4.autocomplete('ar',pmap)
assert_lists_equal(['are'], words)
words = a4.autocomplete('a',pmap)
assert_lists_equal(['a','at','are'], words)
words = a4.autocomplete('aren',pmap)
assert_lists_equal([], words)
pmap = { '':['a'], 'a':['','t','r'], 'at':['','e'], 'ate':[''], 'ar':['e'], 'are':[''] }
words = a4.autocomplete('at',pmap)
assert_lists_equal(['at','ate'], words)
def test_scrabble():
"""Test search function scrabble"""
print 'Testing function scrabble'
wordlist = ['the','be','to','of','a','and','in','that','have','it']
pmap = a4.word_list_to_pmap(wordlist)
words = a4.scrabble('eavhi',4,pmap)
assert_lists_equal(['have'], words)
words = a4.scrabble('',4,pmap)
assert_lists_equal([], words)
words = a4.scrabble('eavhi',0,pmap)
assert_lists_equal([], words)
words = a4.scrabble('ebht',3,pmap)
assert_lists_equal(['the'], words)
words = a4.scrabble('tinfoeb',2,pmap)
assert_lists_equal(['be','to','of','in','it'], words)
words = a4.scrabble('eavhi',5,pmap)
assert_lists_equal([], words)
words = a4.scrabble('abcde',1,pmap)
assert_lists_equal(['a'], words)
words = a4.scrabble('veha',4,pmap)
assert_lists_equal(['have'], words)
def test_match():
"""Test search function match"""
print 'Testing function match'
wordlist = ['the','be','to','of','a','and','in','that','have','it']
pmap = a4.word_list_to_pmap(wordlist)
words = a4.match('?',pmap)
assert_lists_equal(['a'], words)
words = a4.match('???',pmap)
assert_lists_equal(['the','and'], words)
words = a4.match('???t',pmap)
assert_lists_equal(['that'], words)
words = a4.match('b???',pmap)
assert_lists_equal([], words)
words = a4.match('a?d',pmap)
assert_lists_equal(['and'], words)
words = a4.match('that',pmap)
assert_lists_equal(['that'], words)
words = a4.match('a??',pmap)
assert_lists_equal(['and'], words)
wordlist = ['ate','are','ale','axe','axes']
pmap = a4.word_list_to_pmap(wordlist)
words = a4.match('a?e',pmap)
assert_lists_equal(['ate','are','ale','axe'], words)
# Application Code
if __name__ == "__main__":
# Part A
test_build_word_list()
test_word_list_by_size()
test_word_list_extend()
# Part B
test_pmap_add_word()
test_word_list_to_pmap()
test_pmap_to_word_list()
test_pmap_has_word()
# Part C
test_autocomplete()
# Part D
test_scrabble()
test_match()
print "Module a4 is working correctly"