Serhiy Storchaka | 1b80e63 | 2013-10-13 17:55:07 +0300 | [diff] [blame^] | 1 | from test.support import findfile, TESTFN, unlink |
| 2 | import unittest |
| 3 | import array |
| 4 | import io |
| 5 | import pickle |
| 6 | import sys |
| 7 | |
| 8 | def byteswap2(data): |
| 9 | a = array.array('h', data) |
| 10 | a.byteswap() |
| 11 | return a.tobytes() |
| 12 | |
| 13 | def byteswap3(data): |
| 14 | ba = bytearray(data) |
| 15 | ba[::3] = data[2::3] |
| 16 | ba[2::3] = data[::3] |
| 17 | return bytes(ba) |
| 18 | |
| 19 | def byteswap4(data): |
| 20 | a = array.array('i', data) |
| 21 | a.byteswap() |
| 22 | return a.tobytes() |
| 23 | |
| 24 | |
| 25 | class AudioTests: |
| 26 | close_fd = False |
| 27 | |
| 28 | def setUp(self): |
| 29 | self.f = self.fout = None |
| 30 | |
| 31 | def tearDown(self): |
| 32 | if self.f is not None: |
| 33 | self.f.close() |
| 34 | if self.fout is not None: |
| 35 | self.fout.close() |
| 36 | unlink(TESTFN) |
| 37 | |
| 38 | def check_params(self, f, nchannels, sampwidth, framerate, nframes, |
| 39 | comptype, compname): |
| 40 | self.assertEqual(f.getnchannels(), nchannels) |
| 41 | self.assertEqual(f.getsampwidth(), sampwidth) |
| 42 | self.assertEqual(f.getframerate(), framerate) |
| 43 | self.assertEqual(f.getnframes(), nframes) |
| 44 | self.assertEqual(f.getcomptype(), comptype) |
| 45 | self.assertEqual(f.getcompname(), compname) |
| 46 | |
| 47 | params = f.getparams() |
| 48 | self.assertEqual(params, |
| 49 | (nchannels, sampwidth, framerate, nframes, comptype, compname)) |
| 50 | |
| 51 | dump = pickle.dumps(params) |
| 52 | self.assertEqual(pickle.loads(dump), params) |
| 53 | |
| 54 | |
| 55 | class AudioWriteTests(AudioTests): |
| 56 | |
| 57 | def create_file(self, testfile): |
| 58 | f = self.fout = self.module.open(testfile, 'wb') |
| 59 | f.setnchannels(self.nchannels) |
| 60 | f.setsampwidth(self.sampwidth) |
| 61 | f.setframerate(self.framerate) |
| 62 | f.setcomptype(self.comptype, self.compname) |
| 63 | return f |
| 64 | |
| 65 | def check_file(self, testfile, nframes, frames): |
| 66 | f = self.module.open(testfile, 'rb') |
| 67 | try: |
| 68 | self.assertEqual(f.getnchannels(), self.nchannels) |
| 69 | self.assertEqual(f.getsampwidth(), self.sampwidth) |
| 70 | self.assertEqual(f.getframerate(), self.framerate) |
| 71 | self.assertEqual(f.getnframes(), nframes) |
| 72 | self.assertEqual(f.readframes(nframes), frames) |
| 73 | finally: |
| 74 | f.close() |
| 75 | |
| 76 | def test_write_params(self): |
| 77 | f = self.create_file(TESTFN) |
| 78 | f.setnframes(self.nframes) |
| 79 | f.writeframes(self.frames) |
| 80 | self.check_params(f, self.nchannels, self.sampwidth, self.framerate, |
| 81 | self.nframes, self.comptype, self.compname) |
| 82 | f.close() |
| 83 | |
| 84 | def test_write(self): |
| 85 | f = self.create_file(TESTFN) |
| 86 | f.setnframes(self.nframes) |
| 87 | f.writeframes(self.frames) |
| 88 | f.close() |
| 89 | |
| 90 | self.check_file(TESTFN, self.nframes, self.frames) |
| 91 | |
| 92 | def test_incompleted_write(self): |
| 93 | with open(TESTFN, 'wb') as testfile: |
| 94 | testfile.write(b'ababagalamaga') |
| 95 | f = self.create_file(testfile) |
| 96 | f.setnframes(self.nframes + 1) |
| 97 | f.writeframes(self.frames) |
| 98 | f.close() |
| 99 | |
| 100 | with open(TESTFN, 'rb') as testfile: |
| 101 | self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 102 | self.check_file(testfile, self.nframes, self.frames) |
| 103 | |
| 104 | def test_multiple_writes(self): |
| 105 | with open(TESTFN, 'wb') as testfile: |
| 106 | testfile.write(b'ababagalamaga') |
| 107 | f = self.create_file(testfile) |
| 108 | f.setnframes(self.nframes) |
| 109 | framesize = self.nchannels * self.sampwidth |
| 110 | f.writeframes(self.frames[:-framesize]) |
| 111 | f.writeframes(self.frames[-framesize:]) |
| 112 | f.close() |
| 113 | |
| 114 | with open(TESTFN, 'rb') as testfile: |
| 115 | self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 116 | self.check_file(testfile, self.nframes, self.frames) |
| 117 | |
| 118 | def test_overflowed_write(self): |
| 119 | with open(TESTFN, 'wb') as testfile: |
| 120 | testfile.write(b'ababagalamaga') |
| 121 | f = self.create_file(testfile) |
| 122 | f.setnframes(self.nframes - 1) |
| 123 | f.writeframes(self.frames) |
| 124 | f.close() |
| 125 | |
| 126 | with open(TESTFN, 'rb') as testfile: |
| 127 | self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 128 | self.check_file(testfile, self.nframes, self.frames) |
| 129 | |
| 130 | |
| 131 | class AudioTestsWithSourceFile(AudioTests): |
| 132 | |
| 133 | @classmethod |
| 134 | def setUpClass(cls): |
| 135 | cls.sndfilepath = findfile(cls.sndfilename, subdir='audiodata') |
| 136 | |
| 137 | def test_read_params(self): |
| 138 | f = self.f = self.module.open(self.sndfilepath) |
| 139 | #self.assertEqual(f.getfp().name, self.sndfilepath) |
| 140 | self.check_params(f, self.nchannels, self.sampwidth, self.framerate, |
| 141 | self.sndfilenframes, self.comptype, self.compname) |
| 142 | |
| 143 | def test_close(self): |
| 144 | testfile = open(self.sndfilepath, 'rb') |
| 145 | f = self.f = self.module.open(testfile) |
| 146 | self.assertFalse(testfile.closed) |
| 147 | f.close() |
| 148 | self.assertEqual(testfile.closed, self.close_fd) |
| 149 | testfile = open(TESTFN, 'wb') |
| 150 | fout = self.module.open(testfile, 'wb') |
| 151 | self.assertFalse(testfile.closed) |
| 152 | with self.assertRaises(self.module.Error): |
| 153 | fout.close() |
| 154 | self.assertEqual(testfile.closed, self.close_fd) |
| 155 | fout.close() # do nothing |
| 156 | |
| 157 | def test_read(self): |
| 158 | framesize = self.nchannels * self.sampwidth |
| 159 | chunk1 = self.frames[:2 * framesize] |
| 160 | chunk2 = self.frames[2 * framesize: 4 * framesize] |
| 161 | f = self.f = self.module.open(self.sndfilepath) |
| 162 | self.assertEqual(f.readframes(0), b'') |
| 163 | self.assertEqual(f.tell(), 0) |
| 164 | self.assertEqual(f.readframes(2), chunk1) |
| 165 | f.rewind() |
| 166 | pos0 = f.tell() |
| 167 | self.assertEqual(pos0, 0) |
| 168 | self.assertEqual(f.readframes(2), chunk1) |
| 169 | pos2 = f.tell() |
| 170 | self.assertEqual(pos2, 2) |
| 171 | self.assertEqual(f.readframes(2), chunk2) |
| 172 | f.setpos(pos2) |
| 173 | self.assertEqual(f.readframes(2), chunk2) |
| 174 | f.setpos(pos0) |
| 175 | self.assertEqual(f.readframes(2), chunk1) |
| 176 | with self.assertRaises(self.module.Error): |
| 177 | f.setpos(-1) |
| 178 | with self.assertRaises(self.module.Error): |
| 179 | f.setpos(f.getnframes() + 1) |
| 180 | |
| 181 | def test_copy(self): |
| 182 | f = self.f = self.module.open(self.sndfilepath) |
| 183 | fout = self.fout = self.module.open(TESTFN, 'wb') |
| 184 | fout.setparams(f.getparams()) |
| 185 | i = 0 |
| 186 | n = f.getnframes() |
| 187 | while n > 0: |
| 188 | i += 1 |
| 189 | fout.writeframes(f.readframes(i)) |
| 190 | n -= i |
| 191 | fout.close() |
| 192 | fout = self.fout = self.module.open(TESTFN, 'rb') |
| 193 | f.rewind() |
| 194 | self.assertEqual(f.getparams(), fout.getparams()) |
| 195 | self.assertEqual(f.readframes(f.getnframes()), |
| 196 | fout.readframes(fout.getnframes())) |
| 197 | |
| 198 | def test_read_not_from_start(self): |
| 199 | with open(TESTFN, 'wb') as testfile: |
| 200 | testfile.write(b'ababagalamaga') |
| 201 | with open(self.sndfilepath, 'rb') as f: |
| 202 | testfile.write(f.read()) |
| 203 | |
| 204 | with open(TESTFN, 'rb') as testfile: |
| 205 | self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 206 | f = self.module.open(testfile, 'rb') |
| 207 | try: |
| 208 | self.assertEqual(f.getnchannels(), self.nchannels) |
| 209 | self.assertEqual(f.getsampwidth(), self.sampwidth) |
| 210 | self.assertEqual(f.getframerate(), self.framerate) |
| 211 | self.assertEqual(f.getnframes(), self.sndfilenframes) |
| 212 | self.assertEqual(f.readframes(self.nframes), self.frames) |
| 213 | finally: |
| 214 | f.close() |