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
|
from test.test_support import findfile, run_unittest, TESTFN
import unittest
import os
import io
import aifc
class AIFCTest(unittest.TestCase):
def setUp(self):
self.f = self.fout = None
self.sndfilepath = findfile('Sine-1000Hz-300ms.aif')
def tearDown(self):
if self.f is not None:
self.f.close()
if self.fout is not None:
try:
self.fout.close()
except (aifc.Error, AttributeError):
pass
try:
os.remove(TESTFN)
except OSError:
pass
def test_skipunknown(self):
#Issue 2245
#This file contains chunk types aifc doesn't recognize.
self.f = aifc.open(self.sndfilepath)
def test_params(self):
f = self.f = aifc.open(self.sndfilepath)
self.assertEqual(f.getnchannels(), 2)
self.assertEqual(f.getsampwidth(), 2)
self.assertEqual(f.getframerate(), 48000)
self.assertEqual(f.getnframes(), 14400)
self.assertEqual(f.getcomptype(), 'NONE')
self.assertEqual(f.getcompname(), 'not compressed')
self.assertEqual(f.getparams(), (2, 2, 48000, 14400, 'NONE', 'not compressed'))
def test_read(self):
f = self.f = aifc.open(self.sndfilepath)
self.assertEqual(f.tell(), 0)
self.assertEqual(f.readframes(2), '\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
f.rewind()
pos0 = f.tell()
self.assertEqual(pos0, 0)
self.assertEqual(f.readframes(2), '\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
pos2 = f.tell()
self.assertEqual(pos2, 2)
self.assertEqual(f.readframes(2), '\x17t\x17t"\xad"\xad')
f.setpos(pos2)
self.assertEqual(f.readframes(2), '\x17t\x17t"\xad"\xad')
f.setpos(pos0)
self.assertEqual(f.readframes(2), '\x00\x00\x00\x00\x0b\xd4\x0b\xd4')
def test_write(self):
f = self.f = aifc.open(self.sndfilepath)
fout = self.fout = aifc.open(TESTFN, 'wb')
fout.aifc()
fout.setparams(f.getparams())
for frame in range(f.getnframes()):
fout.writeframes(f.readframes(1))
fout.close()
fout = self.fout = aifc.open(TESTFN, 'rb')
f.rewind()
self.assertEqual(f.getparams(), fout.getparams())
self.assertEqual(f.readframes(5), fout.readframes(5))
def test_compress(self):
f = self.f = aifc.open(self.sndfilepath)
fout = self.fout = aifc.open(TESTFN, 'wb')
fout.aifc()
fout.setnchannels(f.getnchannels())
fout.setsampwidth(f.getsampwidth())
fout.setframerate(f.getframerate())
fout.setcomptype('ULAW', 'foo')
for frame in range(f.getnframes()):
fout.writeframes(f.readframes(1))
fout.close()
self.assertLess(
os.stat(TESTFN).st_size,
os.stat(self.sndfilepath).st_size*0.75,
)
fout = self.fout = aifc.open(TESTFN, 'rb')
f.rewind()
self.assertEqual(f.getparams()[0:3], fout.getparams()[0:3])
self.assertEqual(fout.getcomptype(), 'ULAW')
self.assertEqual(fout.getcompname(), 'foo')
# XXX: this test fails, not sure if it should succeed or not
# self.assertEqual(f.readframes(5), fout.readframes(5))
def test_close(self):
class Wrapfile(object):
def __init__(self, file):
self.file = open(file, 'rb')
self.closed = False
def close(self):
self.file.close()
self.closed = True
def __getattr__(self, attr): return getattr(self.file, attr)
testfile = Wrapfile(self.sndfilepath)
f = self.f = aifc.open(testfile)
self.assertEqual(testfile.closed, False)
f.close()
self.assertEqual(testfile.closed, True)
class AIFCLowLevelTest(unittest.TestCase):
def test_read_written(self):
def read_written(self, what):
f = io.BytesIO()
getattr(aifc, '_write_' + what)(f, x)
f.seek(0)
return getattr(aifc, '_read_' + what)(f)
for x in (-1, 0, 0.1, 1):
self.assertEqual(read_written(x, 'float'), x)
for x in (float('NaN'), float('Inf')):
self.assertEqual(read_written(x, 'float'), aifc._HUGE_VAL)
for x in (b'', b'foo', b'a' * 255):
self.assertEqual(read_written(x, 'string'), x)
for x in (-0x7FFFFFFF, -1, 0, 1, 0x7FFFFFFF):
self.assertEqual(read_written(x, 'long'), x)
for x in (0, 1, 0xFFFFFFFF):
self.assertEqual(read_written(x, 'ulong'), x)
for x in (-0x7FFF, -1, 0, 1, 0x7FFF):
self.assertEqual(read_written(x, 'short'), x)
for x in (0, 1, 0xFFFF):
self.assertEqual(read_written(x, 'ushort'), x)
def test_read_raises(self):
f = io.BytesIO(b'\x00')
self.assertRaises(EOFError, aifc._read_ulong, f)
self.assertRaises(EOFError, aifc._read_long, f)
self.assertRaises(EOFError, aifc._read_ushort, f)
self.assertRaises(EOFError, aifc._read_short, f)
def test_write_long_string_raises(self):
f = io.BytesIO()
with self.assertRaises(ValueError):
aifc._write_string(f, b'too long' * 255)
def test_main():
run_unittest(AIFCTest)
run_unittest(AIFCLowLevelTest)
if __name__ == "__main__":
unittest.main()
|
