| 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) |
| testfile = open(TESTFN, 'wb') |
| fout = aifc.open(testfile, 'wb') |
| self.assertFalse(testfile.closed) |
| with self.assertRaises(aifc.Error): |
| fout.close() |
| self.assertTrue(testfile.closed) |
| fout.close() # do nothing |
| |
| |
| 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() |
