|
| 1 | +from test.support import findfile |
| 2 | +from test.support.os_helper import TESTFN, unlink |
| 3 | +import array |
| 4 | +import io |
| 5 | +import pickle |
| 6 | + |
| 7 | + |
| 8 | +class UnseekableIO(io.FileIO): |
| 9 | + def tell(self): |
| 10 | + raise io.UnsupportedOperation |
| 11 | + |
| 12 | + def seek(self, *args, **kwargs): |
| 13 | + raise io.UnsupportedOperation |
| 14 | + |
| 15 | + |
| 16 | +class AudioTests: |
| 17 | + close_fd = False |
| 18 | + |
| 19 | + def setUp(self): |
| 20 | + self.f = self.fout = None |
| 21 | + |
| 22 | + def tearDown(self): |
| 23 | + if self.f is not None: |
| 24 | + self.f.close() |
| 25 | + if self.fout is not None: |
| 26 | + self.fout.close() |
| 27 | + unlink(TESTFN) |
| 28 | + |
| 29 | + def check_params(self, f, nchannels, sampwidth, framerate, nframes, |
| 30 | + comptype, compname): |
| 31 | + self.assertEqual(f.getnchannels(), nchannels) |
| 32 | + self.assertEqual(f.getsampwidth(), sampwidth) |
| 33 | + self.assertEqual(f.getframerate(), framerate) |
| 34 | + self.assertEqual(f.getnframes(), nframes) |
| 35 | + self.assertEqual(f.getcomptype(), comptype) |
| 36 | + self.assertEqual(f.getcompname(), compname) |
| 37 | + |
| 38 | + params = f.getparams() |
| 39 | + self.assertEqual(params, |
| 40 | + (nchannels, sampwidth, framerate, nframes, comptype, compname)) |
| 41 | + self.assertEqual(params.nchannels, nchannels) |
| 42 | + self.assertEqual(params.sampwidth, sampwidth) |
| 43 | + self.assertEqual(params.framerate, framerate) |
| 44 | + self.assertEqual(params.nframes, nframes) |
| 45 | + self.assertEqual(params.comptype, comptype) |
| 46 | + self.assertEqual(params.compname, compname) |
| 47 | + |
| 48 | + for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
| 49 | + dump = pickle.dumps(params, proto) |
| 50 | + self.assertEqual(pickle.loads(dump), params) |
| 51 | + |
| 52 | + |
| 53 | +class AudioWriteTests(AudioTests): |
| 54 | + |
| 55 | + def create_file(self, testfile): |
| 56 | + f = self.fout = self.module.open(testfile, 'wb') |
| 57 | + f.setnchannels(self.nchannels) |
| 58 | + f.setsampwidth(self.sampwidth) |
| 59 | + f.setframerate(self.framerate) |
| 60 | + f.setcomptype(self.comptype, self.compname) |
| 61 | + return f |
| 62 | + |
| 63 | + def check_file(self, testfile, nframes, frames): |
| 64 | + with self.module.open(testfile, 'rb') as f: |
| 65 | + self.assertEqual(f.getnchannels(), self.nchannels) |
| 66 | + self.assertEqual(f.getsampwidth(), self.sampwidth) |
| 67 | + self.assertEqual(f.getframerate(), self.framerate) |
| 68 | + self.assertEqual(f.getnframes(), nframes) |
| 69 | + self.assertEqual(f.readframes(nframes), frames) |
| 70 | + |
| 71 | + def test_write_params(self): |
| 72 | + f = self.create_file(TESTFN) |
| 73 | + f.setnframes(self.nframes) |
| 74 | + f.writeframes(self.frames) |
| 75 | + self.check_params(f, self.nchannels, self.sampwidth, self.framerate, |
| 76 | + self.nframes, self.comptype, self.compname) |
| 77 | + f.close() |
| 78 | + |
| 79 | + def test_write_context_manager_calls_close(self): |
| 80 | + # Close checks for a minimum header and will raise an error |
| 81 | + # if it is not set, so this proves that close is called. |
| 82 | + with self.assertRaises(self.module.Error): |
| 83 | + with self.module.open(TESTFN, 'wb'): |
| 84 | + pass |
| 85 | + with self.assertRaises(self.module.Error): |
| 86 | + with open(TESTFN, 'wb') as testfile: |
| 87 | + with self.module.open(testfile): |
| 88 | + pass |
| 89 | + |
| 90 | + def test_context_manager_with_open_file(self): |
| 91 | + with open(TESTFN, 'wb') as testfile: |
| 92 | + with self.module.open(testfile) as f: |
| 93 | + f.setnchannels(self.nchannels) |
| 94 | + f.setsampwidth(self.sampwidth) |
| 95 | + f.setframerate(self.framerate) |
| 96 | + f.setcomptype(self.comptype, self.compname) |
| 97 | + self.assertEqual(testfile.closed, self.close_fd) |
| 98 | + with open(TESTFN, 'rb') as testfile: |
| 99 | + with self.module.open(testfile) as f: |
| 100 | + self.assertFalse(f.getfp().closed) |
| 101 | + params = f.getparams() |
| 102 | + self.assertEqual(params.nchannels, self.nchannels) |
| 103 | + self.assertEqual(params.sampwidth, self.sampwidth) |
| 104 | + self.assertEqual(params.framerate, self.framerate) |
| 105 | + if not self.close_fd: |
| 106 | + self.assertIsNone(f.getfp()) |
| 107 | + self.assertEqual(testfile.closed, self.close_fd) |
| 108 | + |
| 109 | + def test_context_manager_with_filename(self): |
| 110 | + # If the file doesn't get closed, this test won't fail, but it will |
| 111 | + # produce a resource leak warning. |
| 112 | + with self.module.open(TESTFN, 'wb') as f: |
| 113 | + f.setnchannels(self.nchannels) |
| 114 | + f.setsampwidth(self.sampwidth) |
| 115 | + f.setframerate(self.framerate) |
| 116 | + f.setcomptype(self.comptype, self.compname) |
| 117 | + with self.module.open(TESTFN) as f: |
| 118 | + self.assertFalse(f.getfp().closed) |
| 119 | + params = f.getparams() |
| 120 | + self.assertEqual(params.nchannels, self.nchannels) |
| 121 | + self.assertEqual(params.sampwidth, self.sampwidth) |
| 122 | + self.assertEqual(params.framerate, self.framerate) |
| 123 | + if not self.close_fd: |
| 124 | + self.assertIsNone(f.getfp()) |
| 125 | + |
| 126 | + def test_write(self): |
| 127 | + f = self.create_file(TESTFN) |
| 128 | + f.setnframes(self.nframes) |
| 129 | + f.writeframes(self.frames) |
| 130 | + f.close() |
| 131 | + |
| 132 | + self.check_file(TESTFN, self.nframes, self.frames) |
| 133 | + |
| 134 | + def test_write_bytearray(self): |
| 135 | + f = self.create_file(TESTFN) |
| 136 | + f.setnframes(self.nframes) |
| 137 | + f.writeframes(bytearray(self.frames)) |
| 138 | + f.close() |
| 139 | + |
| 140 | + self.check_file(TESTFN, self.nframes, self.frames) |
| 141 | + |
| 142 | + def test_write_array(self): |
| 143 | + f = self.create_file(TESTFN) |
| 144 | + f.setnframes(self.nframes) |
| 145 | + f.writeframes(array.array('h', self.frames)) |
| 146 | + f.close() |
| 147 | + |
| 148 | + self.check_file(TESTFN, self.nframes, self.frames) |
| 149 | + |
| 150 | + def test_write_memoryview(self): |
| 151 | + f = self.create_file(TESTFN) |
| 152 | + f.setnframes(self.nframes) |
| 153 | + f.writeframes(memoryview(self.frames)) |
| 154 | + f.close() |
| 155 | + |
| 156 | + self.check_file(TESTFN, self.nframes, self.frames) |
| 157 | + |
| 158 | + def test_incompleted_write(self): |
| 159 | + with open(TESTFN, 'wb') as testfile: |
| 160 | + testfile.write(b'ababagalamaga') |
| 161 | + f = self.create_file(testfile) |
| 162 | + f.setnframes(self.nframes + 1) |
| 163 | + f.writeframes(self.frames) |
| 164 | + f.close() |
| 165 | + |
| 166 | + with open(TESTFN, 'rb') as testfile: |
| 167 | + self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 168 | + self.check_file(testfile, self.nframes, self.frames) |
| 169 | + |
| 170 | + def test_multiple_writes(self): |
| 171 | + with open(TESTFN, 'wb') as testfile: |
| 172 | + testfile.write(b'ababagalamaga') |
| 173 | + f = self.create_file(testfile) |
| 174 | + f.setnframes(self.nframes) |
| 175 | + framesize = self.nchannels * self.sampwidth |
| 176 | + f.writeframes(self.frames[:-framesize]) |
| 177 | + f.writeframes(self.frames[-framesize:]) |
| 178 | + f.close() |
| 179 | + |
| 180 | + with open(TESTFN, 'rb') as testfile: |
| 181 | + self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 182 | + self.check_file(testfile, self.nframes, self.frames) |
| 183 | + |
| 184 | + def test_overflowed_write(self): |
| 185 | + with open(TESTFN, 'wb') as testfile: |
| 186 | + testfile.write(b'ababagalamaga') |
| 187 | + f = self.create_file(testfile) |
| 188 | + f.setnframes(self.nframes - 1) |
| 189 | + f.writeframes(self.frames) |
| 190 | + f.close() |
| 191 | + |
| 192 | + with open(TESTFN, 'rb') as testfile: |
| 193 | + self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 194 | + self.check_file(testfile, self.nframes, self.frames) |
| 195 | + |
| 196 | + def test_unseekable_read(self): |
| 197 | + with self.create_file(TESTFN) as f: |
| 198 | + f.setnframes(self.nframes) |
| 199 | + f.writeframes(self.frames) |
| 200 | + |
| 201 | + with UnseekableIO(TESTFN, 'rb') as testfile: |
| 202 | + self.check_file(testfile, self.nframes, self.frames) |
| 203 | + |
| 204 | + def test_unseekable_write(self): |
| 205 | + with UnseekableIO(TESTFN, 'wb') as testfile: |
| 206 | + with self.create_file(testfile) as f: |
| 207 | + f.setnframes(self.nframes) |
| 208 | + f.writeframes(self.frames) |
| 209 | + |
| 210 | + self.check_file(TESTFN, self.nframes, self.frames) |
| 211 | + |
| 212 | + def test_unseekable_incompleted_write(self): |
| 213 | + with UnseekableIO(TESTFN, 'wb') as testfile: |
| 214 | + testfile.write(b'ababagalamaga') |
| 215 | + f = self.create_file(testfile) |
| 216 | + f.setnframes(self.nframes + 1) |
| 217 | + try: |
| 218 | + f.writeframes(self.frames) |
| 219 | + except OSError: |
| 220 | + pass |
| 221 | + try: |
| 222 | + f.close() |
| 223 | + except OSError: |
| 224 | + pass |
| 225 | + |
| 226 | + with open(TESTFN, 'rb') as testfile: |
| 227 | + self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 228 | + self.check_file(testfile, self.nframes + 1, self.frames) |
| 229 | + |
| 230 | + def test_unseekable_overflowed_write(self): |
| 231 | + with UnseekableIO(TESTFN, 'wb') as testfile: |
| 232 | + testfile.write(b'ababagalamaga') |
| 233 | + f = self.create_file(testfile) |
| 234 | + f.setnframes(self.nframes - 1) |
| 235 | + try: |
| 236 | + f.writeframes(self.frames) |
| 237 | + except OSError: |
| 238 | + pass |
| 239 | + try: |
| 240 | + f.close() |
| 241 | + except OSError: |
| 242 | + pass |
| 243 | + |
| 244 | + with open(TESTFN, 'rb') as testfile: |
| 245 | + self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 246 | + framesize = self.nchannels * self.sampwidth |
| 247 | + self.check_file(testfile, self.nframes - 1, self.frames[:-framesize]) |
| 248 | + |
| 249 | + |
| 250 | +class AudioTestsWithSourceFile(AudioTests): |
| 251 | + |
| 252 | + @classmethod |
| 253 | + def setUpClass(cls): |
| 254 | + cls.sndfilepath = findfile(cls.sndfilename, subdir='audiodata') |
| 255 | + |
| 256 | + def test_read_params(self): |
| 257 | + f = self.f = self.module.open(self.sndfilepath) |
| 258 | + #self.assertEqual(f.getfp().name, self.sndfilepath) |
| 259 | + self.check_params(f, self.nchannels, self.sampwidth, self.framerate, |
| 260 | + self.sndfilenframes, self.comptype, self.compname) |
| 261 | + |
| 262 | + def test_close(self): |
| 263 | + with open(self.sndfilepath, 'rb') as testfile: |
| 264 | + f = self.f = self.module.open(testfile) |
| 265 | + self.assertFalse(testfile.closed) |
| 266 | + f.close() |
| 267 | + self.assertEqual(testfile.closed, self.close_fd) |
| 268 | + with open(TESTFN, 'wb') as testfile: |
| 269 | + fout = self.fout = self.module.open(testfile, 'wb') |
| 270 | + self.assertFalse(testfile.closed) |
| 271 | + with self.assertRaises(self.module.Error): |
| 272 | + fout.close() |
| 273 | + self.assertEqual(testfile.closed, self.close_fd) |
| 274 | + fout.close() # do nothing |
| 275 | + |
| 276 | + def test_read(self): |
| 277 | + framesize = self.nchannels * self.sampwidth |
| 278 | + chunk1 = self.frames[:2 * framesize] |
| 279 | + chunk2 = self.frames[2 * framesize: 4 * framesize] |
| 280 | + f = self.f = self.module.open(self.sndfilepath) |
| 281 | + self.assertEqual(f.readframes(0), b'') |
| 282 | + self.assertEqual(f.tell(), 0) |
| 283 | + self.assertEqual(f.readframes(2), chunk1) |
| 284 | + f.rewind() |
| 285 | + pos0 = f.tell() |
| 286 | + self.assertEqual(pos0, 0) |
| 287 | + self.assertEqual(f.readframes(2), chunk1) |
| 288 | + pos2 = f.tell() |
| 289 | + self.assertEqual(pos2, 2) |
| 290 | + self.assertEqual(f.readframes(2), chunk2) |
| 291 | + f.setpos(pos2) |
| 292 | + self.assertEqual(f.readframes(2), chunk2) |
| 293 | + f.setpos(pos0) |
| 294 | + self.assertEqual(f.readframes(2), chunk1) |
| 295 | + with self.assertRaises(self.module.Error): |
| 296 | + f.setpos(-1) |
| 297 | + with self.assertRaises(self.module.Error): |
| 298 | + f.setpos(f.getnframes() + 1) |
| 299 | + |
| 300 | + def test_copy(self): |
| 301 | + f = self.f = self.module.open(self.sndfilepath) |
| 302 | + fout = self.fout = self.module.open(TESTFN, 'wb') |
| 303 | + fout.setparams(f.getparams()) |
| 304 | + i = 0 |
| 305 | + n = f.getnframes() |
| 306 | + while n > 0: |
| 307 | + i += 1 |
| 308 | + fout.writeframes(f.readframes(i)) |
| 309 | + n -= i |
| 310 | + fout.close() |
| 311 | + fout = self.fout = self.module.open(TESTFN, 'rb') |
| 312 | + f.rewind() |
| 313 | + self.assertEqual(f.getparams(), fout.getparams()) |
| 314 | + self.assertEqual(f.readframes(f.getnframes()), |
| 315 | + fout.readframes(fout.getnframes())) |
| 316 | + |
| 317 | + def test_read_not_from_start(self): |
| 318 | + with open(TESTFN, 'wb') as testfile: |
| 319 | + testfile.write(b'ababagalamaga') |
| 320 | + with open(self.sndfilepath, 'rb') as f: |
| 321 | + testfile.write(f.read()) |
| 322 | + |
| 323 | + with open(TESTFN, 'rb') as testfile: |
| 324 | + self.assertEqual(testfile.read(13), b'ababagalamaga') |
| 325 | + with self.module.open(testfile, 'rb') as f: |
| 326 | + self.assertEqual(f.getnchannels(), self.nchannels) |
| 327 | + self.assertEqual(f.getsampwidth(), self.sampwidth) |
| 328 | + self.assertEqual(f.getframerate(), self.framerate) |
| 329 | + self.assertEqual(f.getnframes(), self.sndfilenframes) |
| 330 | + self.assertEqual(f.readframes(self.nframes), self.frames) |
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