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
|
import audioop
import unittest
from test.support import run_unittest
def gendata1():
return b'\0\1\2'
def gendata2():
if audioop.getsample(b'\0\1', 2, 0) == 1:
return b'\0\0\0\1\0\2'
else:
return b'\0\0\1\0\2\0'
def gendata4():
if audioop.getsample(b'\0\0\0\1', 4, 0) == 1:
return b'\0\0\0\0\0\0\0\1\0\0\0\2'
else:
return b'\0\0\0\0\1\0\0\0\2\0\0\0'
data = [gendata1(), gendata2(), gendata4()]
INVALID_DATA = [
('abc', 0),
('abc', 2),
('abc', 4),
]
class TestAudioop(unittest.TestCase):
def test_max(self):
self.assertEqual(audioop.max(data[0], 1), 2)
self.assertEqual(audioop.max(data[1], 2), 2)
self.assertEqual(audioop.max(data[2], 4), 2)
def test_minmax(self):
self.assertEqual(audioop.minmax(data[0], 1), (0, 2))
self.assertEqual(audioop.minmax(data[1], 2), (0, 2))
self.assertEqual(audioop.minmax(data[2], 4), (0, 2))
def test_maxpp(self):
self.assertEqual(audioop.maxpp(data[0], 1), 0)
self.assertEqual(audioop.maxpp(data[1], 2), 0)
self.assertEqual(audioop.maxpp(data[2], 4), 0)
def test_avg(self):
self.assertEqual(audioop.avg(data[0], 1), 1)
self.assertEqual(audioop.avg(data[1], 2), 1)
self.assertEqual(audioop.avg(data[2], 4), 1)
def test_avgpp(self):
self.assertEqual(audioop.avgpp(data[0], 1), 0)
self.assertEqual(audioop.avgpp(data[1], 2), 0)
self.assertEqual(audioop.avgpp(data[2], 4), 0)
def test_rms(self):
self.assertEqual(audioop.rms(data[0], 1), 1)
self.assertEqual(audioop.rms(data[1], 2), 1)
self.assertEqual(audioop.rms(data[2], 4), 1)
def test_cross(self):
self.assertEqual(audioop.cross(data[0], 1), 0)
self.assertEqual(audioop.cross(data[1], 2), 0)
self.assertEqual(audioop.cross(data[2], 4), 0)
def test_add(self):
data2 = []
for d in data:
str = bytearray(len(d))
for i,b in enumerate(d):
str[i] = 2*b
data2.append(str)
self.assertEqual(audioop.add(data[0], data[0], 1), data2[0])
self.assertEqual(audioop.add(data[1], data[1], 2), data2[1])
self.assertEqual(audioop.add(data[2], data[2], 4), data2[2])
def test_bias(self):
# Note: this test assumes that avg() works
d1 = audioop.bias(data[0], 1, 100)
d2 = audioop.bias(data[1], 2, 100)
d4 = audioop.bias(data[2], 4, 100)
self.assertEqual(audioop.avg(d1, 1), 101)
self.assertEqual(audioop.avg(d2, 2), 101)
self.assertEqual(audioop.avg(d4, 4), 101)
def test_lin2lin(self):
# too simple: we test only the size
for d1 in data:
for d2 in data:
got = len(d1)//3
wtd = len(d2)//3
self.assertEqual(len(audioop.lin2lin(d1, got, wtd)), len(d2))
def test_adpcm2lin(self):
# Very cursory test
self.assertEqual(audioop.adpcm2lin(b'\0\0', 1, None), (b'\0\0\0\0', (0,0)))
def test_lin2adpcm(self):
# Very cursory test
self.assertEqual(audioop.lin2adpcm(b'\0\0\0\0', 1, None), (b'\0\0', (0,0)))
def test_lin2alaw(self):
self.assertEqual(audioop.lin2alaw(data[0], 1), b'\xd5\xc5\xf5')
self.assertEqual(audioop.lin2alaw(data[1], 2), b'\xd5\xd5\xd5')
self.assertEqual(audioop.lin2alaw(data[2], 4), b'\xd5\xd5\xd5')
def test_alaw2lin(self):
# Cursory
d = audioop.lin2alaw(data[0], 1)
self.assertEqual(audioop.alaw2lin(d, 1), data[0])
def test_lin2ulaw(self):
self.assertEqual(audioop.lin2ulaw(data[0], 1), b'\xff\xe7\xdb')
self.assertEqual(audioop.lin2ulaw(data[1], 2), b'\xff\xff\xff')
self.assertEqual(audioop.lin2ulaw(data[2], 4), b'\xff\xff\xff')
def test_ulaw2lin(self):
# Cursory
d = audioop.lin2ulaw(data[0], 1)
self.assertEqual(audioop.ulaw2lin(d, 1), data[0])
def test_mul(self):
data2 = []
for d in data:
str = bytearray(len(d))
for i,b in enumerate(d):
str[i] = 2*b
data2.append(str)
self.assertEqual(audioop.mul(data[0], 1, 2), data2[0])
self.assertEqual(audioop.mul(data[1],2, 2), data2[1])
self.assertEqual(audioop.mul(data[2], 4, 2), data2[2])
def test_ratecv(self):
state = None
d1, state = audioop.ratecv(data[0], 1, 1, 8000, 16000, state)
d2, state = audioop.ratecv(data[0], 1, 1, 8000, 16000, state)
self.assertEqual(d1 + d2, b'\000\000\001\001\002\001\000\000\001\001\002')
def test_reverse(self):
self.assertEqual(audioop.reverse(data[0], 1), b'\2\1\0')
def test_tomono(self):
data2 = bytearray()
for d in data[0]:
data2.append(d)
data2.append(d)
self.assertEqual(audioop.tomono(data2, 1, 0.5, 0.5), data[0])
def test_tostereo(self):
data2 = bytearray()
for d in data[0]:
data2.append(d)
data2.append(d)
self.assertEqual(audioop.tostereo(data[0], 1, 1, 1), data2)
def test_findfactor(self):
self.assertEqual(audioop.findfactor(data[1], data[1]), 1.0)
def test_findfit(self):
self.assertEqual(audioop.findfit(data[1], data[1]), (0, 1.0))
def test_findmax(self):
self.assertEqual(audioop.findmax(data[1], 1), 2)
def test_getsample(self):
for i in range(3):
self.assertEqual(audioop.getsample(data[0], 1, i), i)
self.assertEqual(audioop.getsample(data[1], 2, i), i)
self.assertEqual(audioop.getsample(data[2], 4, i), i)
def test_negativelen(self):
# from issue 3306, previously it segfaulted
self.assertRaises(audioop.error,
audioop.findmax, ''.join(chr(x) for x in range(256)), -2392392)
def test_issue7673(self):
state = None
for data, size in INVALID_DATA:
size2 = size
self.assertRaises(audioop.error, audioop.getsample, data, size, 0)
self.assertRaises(audioop.error, audioop.max, data, size)
self.assertRaises(audioop.error, audioop.minmax, data, size)
self.assertRaises(audioop.error, audioop.avg, data, size)
self.assertRaises(audioop.error, audioop.rms, data, size)
self.assertRaises(audioop.error, audioop.avgpp, data, size)
self.assertRaises(audioop.error, audioop.maxpp, data, size)
self.assertRaises(audioop.error, audioop.cross, data, size)
self.assertRaises(audioop.error, audioop.mul, data, size, 1.0)
self.assertRaises(audioop.error, audioop.tomono, data, size, 0.5, 0.5)
self.assertRaises(audioop.error, audioop.tostereo, data, size, 0.5, 0.5)
self.assertRaises(audioop.error, audioop.add, data, data, size)
self.assertRaises(audioop.error, audioop.bias, data, size, 0)
self.assertRaises(audioop.error, audioop.reverse, data, size)
self.assertRaises(audioop.error, audioop.lin2lin, data, size, size2)
self.assertRaises(audioop.error, audioop.ratecv, data, size, 1, 1, 1, state)
self.assertRaises(audioop.error, audioop.lin2ulaw, data, size)
self.assertRaises(audioop.error, audioop.ulaw2lin, data, size)
self.assertRaises(audioop.error, audioop.lin2alaw, data, size)
self.assertRaises(audioop.error, audioop.alaw2lin, data, size)
self.assertRaises(audioop.error, audioop.lin2adpcm, data, size, state)
self.assertRaises(audioop.error, audioop.adpcm2lin, data, size, state)
def test_main():
run_unittest(TestAudioop)
if __name__ == '__main__':
test_main()
|
