Benjamin Peterson | 90f5ba5 | 2010-03-11 22:53:45 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python3 |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 2 | from test import support |
Antoine Pitrou | 1a3ff48 | 2011-10-04 10:28:37 +0200 | [diff] [blame] | 3 | from test.support import TESTFN, bigmemtest, _4G |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 4 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 5 | import unittest |
Guido van Rossum | 34d1928 | 2007-08-09 01:03:29 +0000 | [diff] [blame] | 6 | from io import BytesIO |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 7 | import os |
Nadeem Vawda | ea4b46f | 2011-04-12 23:02:42 +0200 | [diff] [blame] | 8 | import random |
Guido van Rossum | 360e4b8 | 2007-05-14 22:51:27 +0000 | [diff] [blame] | 9 | import subprocess |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 10 | import sys |
Victor Stinner | 45df820 | 2010-04-28 22:31:17 +0000 | [diff] [blame] | 11 | |
| 12 | try: |
| 13 | import threading |
| 14 | except ImportError: |
| 15 | threading = None |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 16 | |
R. David Murray | a21e4ca | 2009-03-31 23:16:50 +0000 | [diff] [blame] | 17 | # Skip tests if the bz2 module doesn't exist. |
| 18 | bz2 = support.import_module('bz2') |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 19 | from bz2 import BZ2File, BZ2Compressor, BZ2Decompressor |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 20 | |
Skip Montanaro | 289bc05 | 2007-08-17 02:30:27 +0000 | [diff] [blame] | 21 | has_cmdline_bunzip2 = sys.platform not in ("win32", "os2emx") |
Tim Peters | 9de06bd | 2002-11-09 06:45:31 +0000 | [diff] [blame] | 22 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 23 | class BaseTest(unittest.TestCase): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 24 | "Base for other testcases." |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 25 | TEXT_LINES = [ |
| 26 | b'root:x:0:0:root:/root:/bin/bash\n', |
| 27 | b'bin:x:1:1:bin:/bin:\n', |
| 28 | b'daemon:x:2:2:daemon:/sbin:\n', |
| 29 | b'adm:x:3:4:adm:/var/adm:\n', |
| 30 | b'lp:x:4:7:lp:/var/spool/lpd:\n', |
| 31 | b'sync:x:5:0:sync:/sbin:/bin/sync\n', |
| 32 | b'shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown\n', |
| 33 | b'halt:x:7:0:halt:/sbin:/sbin/halt\n', |
| 34 | b'mail:x:8:12:mail:/var/spool/mail:\n', |
| 35 | b'news:x:9:13:news:/var/spool/news:\n', |
| 36 | b'uucp:x:10:14:uucp:/var/spool/uucp:\n', |
| 37 | b'operator:x:11:0:operator:/root:\n', |
| 38 | b'games:x:12:100:games:/usr/games:\n', |
| 39 | b'gopher:x:13:30:gopher:/usr/lib/gopher-data:\n', |
| 40 | b'ftp:x:14:50:FTP User:/var/ftp:/bin/bash\n', |
| 41 | b'nobody:x:65534:65534:Nobody:/home:\n', |
| 42 | b'postfix:x:100:101:postfix:/var/spool/postfix:\n', |
| 43 | b'niemeyer:x:500:500::/home/niemeyer:/bin/bash\n', |
| 44 | b'postgres:x:101:102:PostgreSQL Server:/var/lib/pgsql:/bin/bash\n', |
| 45 | b'mysql:x:102:103:MySQL server:/var/lib/mysql:/bin/bash\n', |
| 46 | b'www:x:103:104::/var/www:/bin/false\n', |
| 47 | ] |
| 48 | TEXT = b''.join(TEXT_LINES) |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 49 | DATA = b'BZh91AY&SY.\xc8N\x18\x00\x01>_\x80\x00\x10@\x02\xff\xf0\x01\x07n\x00?\xe7\xff\xe00\x01\x99\xaa\x00\xc0\x03F\x86\x8c#&\x83F\x9a\x03\x06\xa6\xd0\xa6\x93M\x0fQ\xa7\xa8\x06\x804hh\x12$\x11\xa4i4\xf14S\xd2<Q\xb5\x0fH\xd3\xd4\xdd\xd5\x87\xbb\xf8\x94\r\x8f\xafI\x12\xe1\xc9\xf8/E\x00pu\x89\x12]\xc9\xbbDL\nQ\x0e\t1\x12\xdf\xa0\xc0\x97\xac2O9\x89\x13\x94\x0e\x1c7\x0ed\x95I\x0c\xaaJ\xa4\x18L\x10\x05#\x9c\xaf\xba\xbc/\x97\x8a#C\xc8\xe1\x8cW\xf9\xe2\xd0\xd6M\xa7\x8bXa<e\x84t\xcbL\xb3\xa7\xd9\xcd\xd1\xcb\x84.\xaf\xb3\xab\xab\xad`n}\xa0lh\tE,\x8eZ\x15\x17VH>\x88\xe5\xcd9gd6\x0b\n\xe9\x9b\xd5\x8a\x99\xf7\x08.K\x8ev\xfb\xf7xw\xbb\xdf\xa1\x92\xf1\xdd|/";\xa2\xba\x9f\xd5\xb1#A\xb6\xf6\xb3o\xc9\xc5y\\\xebO\xe7\x85\x9a\xbc\xb6f8\x952\xd5\xd7"%\x89>V,\xf7\xa6z\xe2\x9f\xa3\xdf\x11\x11"\xd6E)I\xa9\x13^\xca\xf3r\xd0\x03U\x922\xf26\xec\xb6\xed\x8b\xc3U\x13\x9d\xc5\x170\xa4\xfa^\x92\xacDF\x8a\x97\xd6\x19\xfe\xdd\xb8\xbd\x1a\x9a\x19\xa3\x80ankR\x8b\xe5\xd83]\xa9\xc6\x08\x82f\xf6\xb9"6l$\xb8j@\xc0\x8a\xb0l1..\xbak\x83ls\x15\xbc\xf4\xc1\x13\xbe\xf8E\xb8\x9d\r\xa8\x9dk\x84\xd3n\xfa\xacQ\x07\xb1%y\xaav\xb4\x08\xe0z\x1b\x16\xf5\x04\xe9\xcc\xb9\x08z\x1en7.G\xfc]\xc9\x14\xe1B@\xbb!8`' |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 50 | |
Nadeem Vawda | af518c1 | 2012-06-04 23:32:38 +0200 | [diff] [blame] | 51 | def setUp(self): |
| 52 | self.filename = TESTFN |
| 53 | |
| 54 | def tearDown(self): |
| 55 | if os.path.isfile(self.filename): |
| 56 | os.unlink(self.filename) |
| 57 | |
Tim Peters | 9de06bd | 2002-11-09 06:45:31 +0000 | [diff] [blame] | 58 | if has_cmdline_bunzip2: |
| 59 | def decompress(self, data): |
Guido van Rossum | 360e4b8 | 2007-05-14 22:51:27 +0000 | [diff] [blame] | 60 | pop = subprocess.Popen("bunzip2", shell=True, |
| 61 | stdin=subprocess.PIPE, |
| 62 | stdout=subprocess.PIPE, |
| 63 | stderr=subprocess.STDOUT) |
| 64 | pop.stdin.write(data) |
| 65 | pop.stdin.close() |
| 66 | ret = pop.stdout.read() |
| 67 | pop.stdout.close() |
Tim Peters | 9de06bd | 2002-11-09 06:45:31 +0000 | [diff] [blame] | 68 | if pop.wait() != 0: |
| 69 | ret = bz2.decompress(data) |
| 70 | return ret |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 71 | |
Tim Peters | 9de06bd | 2002-11-09 06:45:31 +0000 | [diff] [blame] | 72 | else: |
Guido van Rossum | 360e4b8 | 2007-05-14 22:51:27 +0000 | [diff] [blame] | 73 | # bunzip2 isn't available to run on Windows. |
Tim Peters | 9de06bd | 2002-11-09 06:45:31 +0000 | [diff] [blame] | 74 | def decompress(self, data): |
| 75 | return bz2.decompress(data) |
| 76 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 77 | class BZ2FileTest(BaseTest): |
Georg Brandl | 33a5f2a | 2005-08-21 14:16:04 +0000 | [diff] [blame] | 78 | "Test BZ2File type miscellaneous methods." |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 79 | |
Nadeem Vawda | 07d291a | 2011-05-30 01:44:45 +0200 | [diff] [blame] | 80 | def createTempFile(self, streams=1): |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 81 | with open(self.filename, "wb") as f: |
Nadeem Vawda | 07d291a | 2011-05-30 01:44:45 +0200 | [diff] [blame] | 82 | f.write(self.DATA * streams) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 83 | |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 84 | def testBadArgs(self): |
| 85 | with self.assertRaises(TypeError): |
| 86 | BZ2File(123.456) |
| 87 | with self.assertRaises(ValueError): |
| 88 | BZ2File("/dev/null", "z") |
| 89 | with self.assertRaises(ValueError): |
| 90 | BZ2File("/dev/null", "rx") |
| 91 | with self.assertRaises(ValueError): |
| 92 | BZ2File("/dev/null", "rbt") |
| 93 | with self.assertRaises(ValueError): |
| 94 | BZ2File("/dev/null", compresslevel=0) |
| 95 | with self.assertRaises(ValueError): |
| 96 | BZ2File("/dev/null", compresslevel=10) |
| 97 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 98 | def testRead(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 99 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 100 | with BZ2File(self.filename) as bz2f: |
| 101 | self.assertRaises(TypeError, bz2f.read, None) |
| 102 | self.assertEqual(bz2f.read(), self.TEXT) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 103 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 104 | def testReadMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 105 | self.createTempFile(streams=5) |
| 106 | with BZ2File(self.filename) as bz2f: |
| 107 | self.assertRaises(TypeError, bz2f.read, None) |
| 108 | self.assertEqual(bz2f.read(), self.TEXT * 5) |
| 109 | |
| 110 | def testReadMonkeyMultiStream(self): |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 111 | # Test BZ2File.read() on a multi-stream archive where a stream |
| 112 | # boundary coincides with the end of the raw read buffer. |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 113 | buffer_size = bz2._BUFFER_SIZE |
| 114 | bz2._BUFFER_SIZE = len(self.DATA) |
| 115 | try: |
| 116 | self.createTempFile(streams=5) |
| 117 | with BZ2File(self.filename) as bz2f: |
| 118 | self.assertRaises(TypeError, bz2f.read, None) |
| 119 | self.assertEqual(bz2f.read(), self.TEXT * 5) |
| 120 | finally: |
| 121 | bz2._BUFFER_SIZE = buffer_size |
| 122 | |
Guido van Rossum | 75c26bc | 2007-08-07 23:29:20 +0000 | [diff] [blame] | 123 | def testRead0(self): |
Guido van Rossum | 75c26bc | 2007-08-07 23:29:20 +0000 | [diff] [blame] | 124 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 125 | with BZ2File(self.filename) as bz2f: |
| 126 | self.assertRaises(TypeError, bz2f.read, None) |
| 127 | self.assertEqual(bz2f.read(0), b"") |
Guido van Rossum | 75c26bc | 2007-08-07 23:29:20 +0000 | [diff] [blame] | 128 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 129 | def testReadChunk10(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 130 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 131 | with BZ2File(self.filename) as bz2f: |
| 132 | text = b'' |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 133 | while True: |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 134 | str = bz2f.read(10) |
| 135 | if not str: |
| 136 | break |
| 137 | text += str |
Antoine Pitrou | 528d9f6 | 2011-01-26 23:29:28 +0000 | [diff] [blame] | 138 | self.assertEqual(text, self.TEXT) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 139 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 140 | def testReadChunk10MultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 141 | self.createTempFile(streams=5) |
| 142 | with BZ2File(self.filename) as bz2f: |
| 143 | text = b'' |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 144 | while True: |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 145 | str = bz2f.read(10) |
| 146 | if not str: |
| 147 | break |
| 148 | text += str |
| 149 | self.assertEqual(text, self.TEXT * 5) |
| 150 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 151 | def testRead100(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 152 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 153 | with BZ2File(self.filename) as bz2f: |
| 154 | self.assertEqual(bz2f.read(100), self.TEXT[:100]) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 155 | |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 156 | def testPeek(self): |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 157 | self.createTempFile() |
| 158 | with BZ2File(self.filename) as bz2f: |
| 159 | pdata = bz2f.peek() |
| 160 | self.assertNotEqual(len(pdata), 0) |
| 161 | self.assertTrue(self.TEXT.startswith(pdata)) |
| 162 | self.assertEqual(bz2f.read(), self.TEXT) |
| 163 | |
| 164 | def testReadInto(self): |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 165 | self.createTempFile() |
| 166 | with BZ2File(self.filename) as bz2f: |
| 167 | n = 128 |
| 168 | b = bytearray(n) |
| 169 | self.assertEqual(bz2f.readinto(b), n) |
| 170 | self.assertEqual(b, self.TEXT[:n]) |
| 171 | n = len(self.TEXT) - n |
| 172 | b = bytearray(len(self.TEXT)) |
| 173 | self.assertEqual(bz2f.readinto(b), n) |
| 174 | self.assertEqual(b[:n], self.TEXT[-n:]) |
| 175 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 176 | def testReadLine(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 177 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 178 | with BZ2File(self.filename) as bz2f: |
| 179 | self.assertRaises(TypeError, bz2f.readline, None) |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 180 | for line in self.TEXT_LINES: |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 181 | self.assertEqual(bz2f.readline(), line) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 182 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 183 | def testReadLineMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 184 | self.createTempFile(streams=5) |
| 185 | with BZ2File(self.filename) as bz2f: |
| 186 | self.assertRaises(TypeError, bz2f.readline, None) |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 187 | for line in self.TEXT_LINES * 5: |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 188 | self.assertEqual(bz2f.readline(), line) |
| 189 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 190 | def testReadLines(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 191 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 192 | with BZ2File(self.filename) as bz2f: |
| 193 | self.assertRaises(TypeError, bz2f.readlines, None) |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 194 | self.assertEqual(bz2f.readlines(), self.TEXT_LINES) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 195 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 196 | def testReadLinesMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 197 | self.createTempFile(streams=5) |
| 198 | with BZ2File(self.filename) as bz2f: |
| 199 | self.assertRaises(TypeError, bz2f.readlines, None) |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 200 | self.assertEqual(bz2f.readlines(), self.TEXT_LINES * 5) |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 201 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 202 | def testIterator(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 203 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 204 | with BZ2File(self.filename) as bz2f: |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 205 | self.assertEqual(list(iter(bz2f)), self.TEXT_LINES) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 206 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 207 | def testIteratorMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 208 | self.createTempFile(streams=5) |
| 209 | with BZ2File(self.filename) as bz2f: |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 210 | self.assertEqual(list(iter(bz2f)), self.TEXT_LINES * 5) |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 211 | |
Georg Brandl | 86b2fb9 | 2008-07-16 03:43:04 +0000 | [diff] [blame] | 212 | def testClosedIteratorDeadlock(self): |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 213 | # Issue #3309: Iteration on a closed BZ2File should release the lock. |
Georg Brandl | 86b2fb9 | 2008-07-16 03:43:04 +0000 | [diff] [blame] | 214 | self.createTempFile() |
| 215 | bz2f = BZ2File(self.filename) |
| 216 | bz2f.close() |
| 217 | self.assertRaises(ValueError, bz2f.__next__) |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 218 | # This call will deadlock if the above .__next__ call failed to |
Georg Brandl | 86b2fb9 | 2008-07-16 03:43:04 +0000 | [diff] [blame] | 219 | # release the lock. |
| 220 | self.assertRaises(ValueError, bz2f.readlines) |
| 221 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 222 | def testWrite(self): |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 223 | with BZ2File(self.filename, "w") as bz2f: |
| 224 | self.assertRaises(TypeError, bz2f.write) |
| 225 | bz2f.write(self.TEXT) |
| 226 | with open(self.filename, 'rb') as f: |
| 227 | self.assertEqual(self.decompress(f.read()), self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 228 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 229 | def testWriteChunks10(self): |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 230 | with BZ2File(self.filename, "w") as bz2f: |
| 231 | n = 0 |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 232 | while True: |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 233 | str = self.TEXT[n*10:(n+1)*10] |
| 234 | if not str: |
| 235 | break |
| 236 | bz2f.write(str) |
| 237 | n += 1 |
| 238 | with open(self.filename, 'rb') as f: |
| 239 | self.assertEqual(self.decompress(f.read()), self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 240 | |
Nadeem Vawda | 249ab5e | 2011-09-11 22:38:11 +0200 | [diff] [blame] | 241 | def testWriteNonDefaultCompressLevel(self): |
| 242 | expected = bz2.compress(self.TEXT, compresslevel=5) |
| 243 | with BZ2File(self.filename, "w", compresslevel=5) as bz2f: |
| 244 | bz2f.write(self.TEXT) |
| 245 | with open(self.filename, "rb") as f: |
| 246 | self.assertEqual(f.read(), expected) |
| 247 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 248 | def testWriteLines(self): |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 249 | with BZ2File(self.filename, "w") as bz2f: |
| 250 | self.assertRaises(TypeError, bz2f.writelines) |
Nadeem Vawda | 72e5865 | 2011-05-30 02:09:54 +0200 | [diff] [blame] | 251 | bz2f.writelines(self.TEXT_LINES) |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 252 | # Issue #1535500: Calling writelines() on a closed BZ2File |
| 253 | # should raise an exception. |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 254 | self.assertRaises(ValueError, bz2f.writelines, ["a"]) |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 255 | with open(self.filename, 'rb') as f: |
| 256 | self.assertEqual(self.decompress(f.read()), self.TEXT) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 257 | |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 258 | def testWriteMethodsOnReadOnlyFile(self): |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 259 | with BZ2File(self.filename, "w") as bz2f: |
| 260 | bz2f.write(b"abc") |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 261 | |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 262 | with BZ2File(self.filename, "r") as bz2f: |
| 263 | self.assertRaises(IOError, bz2f.write, b"a") |
| 264 | self.assertRaises(IOError, bz2f.writelines, [b"a"]) |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 265 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 266 | def testAppend(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 267 | with BZ2File(self.filename, "w") as bz2f: |
| 268 | self.assertRaises(TypeError, bz2f.write) |
| 269 | bz2f.write(self.TEXT) |
| 270 | with BZ2File(self.filename, "a") as bz2f: |
| 271 | self.assertRaises(TypeError, bz2f.write) |
| 272 | bz2f.write(self.TEXT) |
| 273 | with open(self.filename, 'rb') as f: |
| 274 | self.assertEqual(self.decompress(f.read()), self.TEXT * 2) |
| 275 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 276 | def testSeekForward(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 277 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 278 | with BZ2File(self.filename) as bz2f: |
| 279 | self.assertRaises(TypeError, bz2f.seek) |
| 280 | bz2f.seek(150) |
| 281 | self.assertEqual(bz2f.read(), self.TEXT[150:]) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 282 | |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 283 | def testSeekForwardAcrossStreams(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 284 | self.createTempFile(streams=2) |
| 285 | with BZ2File(self.filename) as bz2f: |
| 286 | self.assertRaises(TypeError, bz2f.seek) |
| 287 | bz2f.seek(len(self.TEXT) + 150) |
| 288 | self.assertEqual(bz2f.read(), self.TEXT[150:]) |
| 289 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 290 | def testSeekBackwards(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 291 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 292 | with BZ2File(self.filename) as bz2f: |
| 293 | bz2f.read(500) |
| 294 | bz2f.seek(-150, 1) |
| 295 | self.assertEqual(bz2f.read(), self.TEXT[500-150:]) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 296 | |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 297 | def testSeekBackwardsAcrossStreams(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 298 | self.createTempFile(streams=2) |
| 299 | with BZ2File(self.filename) as bz2f: |
| 300 | readto = len(self.TEXT) + 100 |
| 301 | while readto > 0: |
| 302 | readto -= len(bz2f.read(readto)) |
| 303 | bz2f.seek(-150, 1) |
| 304 | self.assertEqual(bz2f.read(), self.TEXT[100-150:] + self.TEXT) |
| 305 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 306 | def testSeekBackwardsFromEnd(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 307 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 308 | with BZ2File(self.filename) as bz2f: |
| 309 | bz2f.seek(-150, 2) |
| 310 | self.assertEqual(bz2f.read(), self.TEXT[len(self.TEXT)-150:]) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 311 | |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 312 | def testSeekBackwardsFromEndAcrossStreams(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 313 | self.createTempFile(streams=2) |
| 314 | with BZ2File(self.filename) as bz2f: |
| 315 | bz2f.seek(-1000, 2) |
| 316 | self.assertEqual(bz2f.read(), (self.TEXT * 2)[-1000:]) |
| 317 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 318 | def testSeekPostEnd(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 319 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 320 | with BZ2File(self.filename) as bz2f: |
| 321 | bz2f.seek(150000) |
| 322 | self.assertEqual(bz2f.tell(), len(self.TEXT)) |
| 323 | self.assertEqual(bz2f.read(), b"") |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 324 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 325 | def testSeekPostEndMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 326 | self.createTempFile(streams=5) |
| 327 | with BZ2File(self.filename) as bz2f: |
| 328 | bz2f.seek(150000) |
| 329 | self.assertEqual(bz2f.tell(), len(self.TEXT) * 5) |
| 330 | self.assertEqual(bz2f.read(), b"") |
| 331 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 332 | def testSeekPostEndTwice(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 333 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 334 | with BZ2File(self.filename) as bz2f: |
| 335 | bz2f.seek(150000) |
| 336 | bz2f.seek(150000) |
| 337 | self.assertEqual(bz2f.tell(), len(self.TEXT)) |
| 338 | self.assertEqual(bz2f.read(), b"") |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 339 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 340 | def testSeekPostEndTwiceMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 341 | self.createTempFile(streams=5) |
| 342 | with BZ2File(self.filename) as bz2f: |
| 343 | bz2f.seek(150000) |
| 344 | bz2f.seek(150000) |
| 345 | self.assertEqual(bz2f.tell(), len(self.TEXT) * 5) |
| 346 | self.assertEqual(bz2f.read(), b"") |
| 347 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 348 | def testSeekPreStart(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 349 | self.createTempFile() |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 350 | with BZ2File(self.filename) as bz2f: |
| 351 | bz2f.seek(-150) |
| 352 | self.assertEqual(bz2f.tell(), 0) |
| 353 | self.assertEqual(bz2f.read(), self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 354 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 355 | def testSeekPreStartMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 356 | self.createTempFile(streams=2) |
| 357 | with BZ2File(self.filename) as bz2f: |
| 358 | bz2f.seek(-150) |
| 359 | self.assertEqual(bz2f.tell(), 0) |
| 360 | self.assertEqual(bz2f.read(), self.TEXT * 2) |
| 361 | |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 362 | def testFileno(self): |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 363 | self.createTempFile() |
Victor Stinner | 938f635 | 2011-06-30 18:25:07 +0200 | [diff] [blame] | 364 | with open(self.filename, 'rb') as rawf: |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 365 | bz2f = BZ2File(rawf) |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 366 | try: |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 367 | self.assertEqual(bz2f.fileno(), rawf.fileno()) |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 368 | finally: |
| 369 | bz2f.close() |
| 370 | self.assertRaises(ValueError, bz2f.fileno) |
| 371 | |
| 372 | def testSeekable(self): |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 373 | bz2f = BZ2File(BytesIO(self.DATA)) |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 374 | try: |
| 375 | self.assertTrue(bz2f.seekable()) |
| 376 | bz2f.read() |
| 377 | self.assertTrue(bz2f.seekable()) |
| 378 | finally: |
| 379 | bz2f.close() |
| 380 | self.assertRaises(ValueError, bz2f.seekable) |
| 381 | |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 382 | bz2f = BZ2File(BytesIO(), mode="w") |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 383 | try: |
| 384 | self.assertFalse(bz2f.seekable()) |
| 385 | finally: |
| 386 | bz2f.close() |
| 387 | self.assertRaises(ValueError, bz2f.seekable) |
| 388 | |
Nadeem Vawda | ae557d7 | 2012-02-12 01:51:38 +0200 | [diff] [blame] | 389 | src = BytesIO(self.DATA) |
| 390 | src.seekable = lambda: False |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 391 | bz2f = BZ2File(src) |
Nadeem Vawda | ae557d7 | 2012-02-12 01:51:38 +0200 | [diff] [blame] | 392 | try: |
| 393 | self.assertFalse(bz2f.seekable()) |
| 394 | finally: |
| 395 | bz2f.close() |
| 396 | self.assertRaises(ValueError, bz2f.seekable) |
| 397 | |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 398 | def testReadable(self): |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 399 | bz2f = BZ2File(BytesIO(self.DATA)) |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 400 | try: |
| 401 | self.assertTrue(bz2f.readable()) |
| 402 | bz2f.read() |
| 403 | self.assertTrue(bz2f.readable()) |
| 404 | finally: |
| 405 | bz2f.close() |
| 406 | self.assertRaises(ValueError, bz2f.readable) |
| 407 | |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 408 | bz2f = BZ2File(BytesIO(), mode="w") |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 409 | try: |
| 410 | self.assertFalse(bz2f.readable()) |
| 411 | finally: |
| 412 | bz2f.close() |
| 413 | self.assertRaises(ValueError, bz2f.readable) |
| 414 | |
| 415 | def testWritable(self): |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 416 | bz2f = BZ2File(BytesIO(self.DATA)) |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 417 | try: |
| 418 | self.assertFalse(bz2f.writable()) |
| 419 | bz2f.read() |
| 420 | self.assertFalse(bz2f.writable()) |
| 421 | finally: |
| 422 | bz2f.close() |
| 423 | self.assertRaises(ValueError, bz2f.writable) |
| 424 | |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 425 | bz2f = BZ2File(BytesIO(), mode="w") |
Nadeem Vawda | 44ae4a2 | 2011-11-30 17:39:30 +0200 | [diff] [blame] | 426 | try: |
| 427 | self.assertTrue(bz2f.writable()) |
| 428 | finally: |
| 429 | bz2f.close() |
| 430 | self.assertRaises(ValueError, bz2f.writable) |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 431 | |
Neal Norwitz | 7cbd247 | 2003-02-12 23:09:53 +0000 | [diff] [blame] | 432 | def testOpenDel(self): |
| 433 | self.createTempFile() |
Guido van Rossum | 805365e | 2007-05-07 22:24:25 +0000 | [diff] [blame] | 434 | for i in range(10000): |
Neal Norwitz | 7cbd247 | 2003-02-12 23:09:53 +0000 | [diff] [blame] | 435 | o = BZ2File(self.filename) |
| 436 | del o |
| 437 | |
Gustavo Niemeyer | 572f523 | 2003-04-29 14:53:08 +0000 | [diff] [blame] | 438 | def testOpenNonexistent(self): |
Gustavo Niemeyer | 572f523 | 2003-04-29 14:53:08 +0000 | [diff] [blame] | 439 | self.assertRaises(IOError, BZ2File, "/non/existent") |
| 440 | |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 441 | def testReadlinesNoNewline(self): |
| 442 | # Issue #1191043: readlines() fails on a file containing no newline. |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 443 | data = b'BZh91AY&SY\xd9b\x89]\x00\x00\x00\x03\x80\x04\x00\x02\x00\x0c\x00 \x00!\x9ah3M\x13<]\xc9\x14\xe1BCe\x8a%t' |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 444 | with open(self.filename, "wb") as f: |
| 445 | f.write(data) |
| 446 | with BZ2File(self.filename) as bz2f: |
| 447 | lines = bz2f.readlines() |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 448 | self.assertEqual(lines, [b'Test']) |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 449 | with BZ2File(self.filename) as bz2f: |
| 450 | xlines = list(bz2f.readlines()) |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 451 | self.assertEqual(xlines, [b'Test']) |
Georg Brandl | 33a5f2a | 2005-08-21 14:16:04 +0000 | [diff] [blame] | 452 | |
Antoine Pitrou | 308705e | 2009-01-10 16:22:51 +0000 | [diff] [blame] | 453 | def testContextProtocol(self): |
Antoine Pitrou | 308705e | 2009-01-10 16:22:51 +0000 | [diff] [blame] | 454 | f = None |
| 455 | with BZ2File(self.filename, "wb") as f: |
| 456 | f.write(b"xxx") |
| 457 | f = BZ2File(self.filename, "rb") |
| 458 | f.close() |
| 459 | try: |
| 460 | with f: |
| 461 | pass |
| 462 | except ValueError: |
| 463 | pass |
| 464 | else: |
| 465 | self.fail("__enter__ on a closed file didn't raise an exception") |
| 466 | try: |
| 467 | with BZ2File(self.filename, "wb") as f: |
| 468 | 1/0 |
| 469 | except ZeroDivisionError: |
| 470 | pass |
| 471 | else: |
| 472 | self.fail("1/0 didn't raise an exception") |
| 473 | |
Victor Stinner | 45df820 | 2010-04-28 22:31:17 +0000 | [diff] [blame] | 474 | @unittest.skipUnless(threading, 'Threading required for this test.') |
Antoine Pitrou | c66363f | 2009-10-27 17:47:14 +0000 | [diff] [blame] | 475 | def testThreading(self): |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 476 | # Issue #7205: Using a BZ2File from several threads shouldn't deadlock. |
Antoine Pitrou | c66363f | 2009-10-27 17:47:14 +0000 | [diff] [blame] | 477 | data = b"1" * 2**20 |
| 478 | nthreads = 10 |
Brian Curtin | d2e948d | 2010-10-13 02:56:26 +0000 | [diff] [blame] | 479 | with bz2.BZ2File(self.filename, 'wb') as f: |
Antoine Pitrou | c66363f | 2009-10-27 17:47:14 +0000 | [diff] [blame] | 480 | def comp(): |
| 481 | for i in range(5): |
| 482 | f.write(data) |
| 483 | threads = [threading.Thread(target=comp) for i in range(nthreads)] |
| 484 | for t in threads: |
| 485 | t.start() |
| 486 | for t in threads: |
| 487 | t.join() |
Antoine Pitrou | c66363f | 2009-10-27 17:47:14 +0000 | [diff] [blame] | 488 | |
Nadeem Vawda | 72750a8 | 2012-01-18 01:57:14 +0200 | [diff] [blame] | 489 | def testWithoutThreading(self): |
| 490 | bz2 = support.import_fresh_module("bz2", blocked=("threading",)) |
| 491 | with bz2.BZ2File(self.filename, "wb") as f: |
| 492 | f.write(b"abc") |
| 493 | with bz2.BZ2File(self.filename, "rb") as f: |
| 494 | self.assertEqual(f.read(), b"abc") |
| 495 | |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 496 | def testMixedIterationAndReads(self): |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 497 | self.createTempFile() |
| 498 | linelen = len(self.TEXT_LINES[0]) |
| 499 | halflen = linelen // 2 |
| 500 | with bz2.BZ2File(self.filename) as bz2f: |
| 501 | bz2f.read(halflen) |
| 502 | self.assertEqual(next(bz2f), self.TEXT_LINES[0][halflen:]) |
| 503 | self.assertEqual(bz2f.read(), self.TEXT[linelen:]) |
| 504 | with bz2.BZ2File(self.filename) as bz2f: |
| 505 | bz2f.readline() |
| 506 | self.assertEqual(next(bz2f), self.TEXT_LINES[1]) |
| 507 | self.assertEqual(bz2f.readline(), self.TEXT_LINES[2]) |
| 508 | with bz2.BZ2File(self.filename) as bz2f: |
| 509 | bz2f.readlines() |
| 510 | with self.assertRaises(StopIteration): |
| 511 | next(bz2f) |
| 512 | self.assertEqual(bz2f.readlines(), []) |
| 513 | |
Nadeem Vawda | f3ecb83 | 2011-05-30 01:58:12 +0200 | [diff] [blame] | 514 | def testMultiStreamOrdering(self): |
| 515 | # Test the ordering of streams when reading a multi-stream archive. |
| 516 | data1 = b"foo" * 1000 |
| 517 | data2 = b"bar" * 1000 |
| 518 | with BZ2File(self.filename, "w") as bz2f: |
| 519 | bz2f.write(data1) |
| 520 | with BZ2File(self.filename, "a") as bz2f: |
| 521 | bz2f.write(data2) |
| 522 | with BZ2File(self.filename) as bz2f: |
| 523 | self.assertEqual(bz2f.read(), data1 + data2) |
| 524 | |
Nadeem Vawda | 10c8791 | 2012-06-20 01:48:50 +0200 | [diff] [blame] | 525 | def testOpenBytesFilename(self): |
| 526 | str_filename = self.filename |
| 527 | try: |
| 528 | bytes_filename = str_filename.encode("ascii") |
| 529 | except UnicodeEncodeError: |
| 530 | self.skipTest("Temporary file name needs to be ASCII") |
| 531 | with BZ2File(bytes_filename, "wb") as f: |
| 532 | f.write(self.DATA) |
| 533 | with BZ2File(bytes_filename, "rb") as f: |
| 534 | self.assertEqual(f.read(), self.DATA) |
| 535 | # Sanity check that we are actually operating on the right file. |
| 536 | with BZ2File(str_filename, "rb") as f: |
| 537 | self.assertEqual(f.read(), self.DATA) |
| 538 | |
| 539 | |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 540 | # Tests for a BZ2File wrapping another file object: |
| 541 | |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 542 | def testReadBytesIO(self): |
Nadeem Vawda | 07d291a | 2011-05-30 01:44:45 +0200 | [diff] [blame] | 543 | with BytesIO(self.DATA) as bio: |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 544 | with BZ2File(bio) as bz2f: |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 545 | self.assertRaises(TypeError, bz2f.read, None) |
| 546 | self.assertEqual(bz2f.read(), self.TEXT) |
| 547 | self.assertFalse(bio.closed) |
| 548 | |
| 549 | def testPeekBytesIO(self): |
Nadeem Vawda | 07d291a | 2011-05-30 01:44:45 +0200 | [diff] [blame] | 550 | with BytesIO(self.DATA) as bio: |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 551 | with BZ2File(bio) as bz2f: |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 552 | pdata = bz2f.peek() |
| 553 | self.assertNotEqual(len(pdata), 0) |
| 554 | self.assertTrue(self.TEXT.startswith(pdata)) |
| 555 | self.assertEqual(bz2f.read(), self.TEXT) |
| 556 | |
| 557 | def testWriteBytesIO(self): |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 558 | with BytesIO() as bio: |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 559 | with BZ2File(bio, "w") as bz2f: |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 560 | self.assertRaises(TypeError, bz2f.write) |
| 561 | bz2f.write(self.TEXT) |
| 562 | self.assertEqual(self.decompress(bio.getvalue()), self.TEXT) |
| 563 | self.assertFalse(bio.closed) |
| 564 | |
| 565 | def testSeekForwardBytesIO(self): |
Nadeem Vawda | 07d291a | 2011-05-30 01:44:45 +0200 | [diff] [blame] | 566 | with BytesIO(self.DATA) as bio: |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 567 | with BZ2File(bio) as bz2f: |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 568 | self.assertRaises(TypeError, bz2f.seek) |
| 569 | bz2f.seek(150) |
| 570 | self.assertEqual(bz2f.read(), self.TEXT[150:]) |
| 571 | |
| 572 | def testSeekBackwardsBytesIO(self): |
Nadeem Vawda | 07d291a | 2011-05-30 01:44:45 +0200 | [diff] [blame] | 573 | with BytesIO(self.DATA) as bio: |
Nadeem Vawda | aebcdba | 2012-06-04 23:31:20 +0200 | [diff] [blame] | 574 | with BZ2File(bio) as bz2f: |
Antoine Pitrou | 37dc5f8 | 2011-04-03 17:05:46 +0200 | [diff] [blame] | 575 | bz2f.read(500) |
| 576 | bz2f.seek(-150, 1) |
| 577 | self.assertEqual(bz2f.read(), self.TEXT[500-150:]) |
Georg Brandl | 33a5f2a | 2005-08-21 14:16:04 +0000 | [diff] [blame] | 578 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 579 | class BZ2CompressorTest(BaseTest): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 580 | def testCompress(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 581 | bz2c = BZ2Compressor() |
Walter Dörwald | bb9c739 | 2004-11-01 17:10:19 +0000 | [diff] [blame] | 582 | self.assertRaises(TypeError, bz2c.compress) |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 583 | data = bz2c.compress(self.TEXT) |
| 584 | data += bz2c.flush() |
| 585 | self.assertEqual(self.decompress(data), self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 586 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 587 | def testCompressChunks10(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 588 | bz2c = BZ2Compressor() |
| 589 | n = 0 |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 590 | data = b'' |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 591 | while True: |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 592 | str = self.TEXT[n*10:(n+1)*10] |
| 593 | if not str: |
| 594 | break |
| 595 | data += bz2c.compress(str) |
| 596 | n += 1 |
| 597 | data += bz2c.flush() |
| 598 | self.assertEqual(self.decompress(data), self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 599 | |
Antoine Pitrou | 1a3ff48 | 2011-10-04 10:28:37 +0200 | [diff] [blame] | 600 | @bigmemtest(size=_4G + 100, memuse=2) |
Nadeem Vawda | ea4b46f | 2011-04-12 23:02:42 +0200 | [diff] [blame] | 601 | def testCompress4G(self, size): |
| 602 | # "Test BZ2Compressor.compress()/flush() with >4GiB input" |
| 603 | bz2c = BZ2Compressor() |
| 604 | data = b"x" * size |
| 605 | try: |
| 606 | compressed = bz2c.compress(data) |
| 607 | compressed += bz2c.flush() |
| 608 | finally: |
| 609 | data = None # Release memory |
| 610 | data = bz2.decompress(compressed) |
| 611 | try: |
| 612 | self.assertEqual(len(data), size) |
| 613 | self.assertEqual(len(data.strip(b"x")), 0) |
| 614 | finally: |
| 615 | data = None |
| 616 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 617 | class BZ2DecompressorTest(BaseTest): |
Walter Dörwald | bb9c739 | 2004-11-01 17:10:19 +0000 | [diff] [blame] | 618 | def test_Constructor(self): |
| 619 | self.assertRaises(TypeError, BZ2Decompressor, 42) |
| 620 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 621 | def testDecompress(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 622 | bz2d = BZ2Decompressor() |
Walter Dörwald | bb9c739 | 2004-11-01 17:10:19 +0000 | [diff] [blame] | 623 | self.assertRaises(TypeError, bz2d.decompress) |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 624 | text = bz2d.decompress(self.DATA) |
| 625 | self.assertEqual(text, self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 626 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 627 | def testDecompressChunks10(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 628 | bz2d = BZ2Decompressor() |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 629 | text = b'' |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 630 | n = 0 |
Nadeem Vawda | 98838ba | 2011-05-30 01:12:24 +0200 | [diff] [blame] | 631 | while True: |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 632 | str = self.DATA[n*10:(n+1)*10] |
| 633 | if not str: |
| 634 | break |
| 635 | text += bz2d.decompress(str) |
| 636 | n += 1 |
| 637 | self.assertEqual(text, self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 638 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 639 | def testDecompressUnusedData(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 640 | bz2d = BZ2Decompressor() |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 641 | unused_data = b"this is unused data" |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 642 | text = bz2d.decompress(self.DATA+unused_data) |
| 643 | self.assertEqual(text, self.TEXT) |
| 644 | self.assertEqual(bz2d.unused_data, unused_data) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 645 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 646 | def testEOFError(self): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 647 | bz2d = BZ2Decompressor() |
| 648 | text = bz2d.decompress(self.DATA) |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 649 | self.assertRaises(EOFError, bz2d.decompress, b"anything") |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 650 | |
Antoine Pitrou | 1a3ff48 | 2011-10-04 10:28:37 +0200 | [diff] [blame] | 651 | @bigmemtest(size=_4G + 100, memuse=3) |
Nadeem Vawda | ea4b46f | 2011-04-12 23:02:42 +0200 | [diff] [blame] | 652 | def testDecompress4G(self, size): |
| 653 | # "Test BZ2Decompressor.decompress() with >4GiB input" |
| 654 | blocksize = 10 * 1024 * 1024 |
| 655 | block = random.getrandbits(blocksize * 8).to_bytes(blocksize, 'little') |
| 656 | try: |
| 657 | data = block * (size // blocksize + 1) |
| 658 | compressed = bz2.compress(data) |
| 659 | bz2d = BZ2Decompressor() |
| 660 | decompressed = bz2d.decompress(compressed) |
| 661 | self.assertTrue(decompressed == data) |
| 662 | finally: |
| 663 | data = None |
| 664 | compressed = None |
| 665 | decompressed = None |
| 666 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 667 | |
Nadeem Vawda | af518c1 | 2012-06-04 23:32:38 +0200 | [diff] [blame] | 668 | class CompressDecompressTest(BaseTest): |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 669 | def testCompress(self): |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 670 | data = bz2.compress(self.TEXT) |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 671 | self.assertEqual(self.decompress(data), self.TEXT) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 672 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 673 | def testDecompress(self): |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 674 | text = bz2.decompress(self.DATA) |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 675 | self.assertEqual(text, self.TEXT) |
Tim Peters | 230a60c | 2002-11-09 05:08:07 +0000 | [diff] [blame] | 676 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 677 | def testDecompressEmpty(self): |
Guido van Rossum | 522a6c6 | 2007-05-22 23:13:45 +0000 | [diff] [blame] | 678 | text = bz2.decompress(b"") |
| 679 | self.assertEqual(text, b"") |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 680 | |
Tim Peters | 3de7526 | 2002-11-09 05:26:15 +0000 | [diff] [blame] | 681 | def testDecompressIncomplete(self): |
Tim Peters | 499d09a | 2002-11-09 06:31:56 +0000 | [diff] [blame] | 682 | self.assertRaises(ValueError, bz2.decompress, self.DATA[:-10]) |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 683 | |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 684 | def testDecompressMultiStream(self): |
Nadeem Vawda | 55b4338 | 2011-05-27 01:52:15 +0200 | [diff] [blame] | 685 | text = bz2.decompress(self.DATA * 5) |
| 686 | self.assertEqual(text, self.TEXT * 5) |
| 687 | |
Nadeem Vawda | af518c1 | 2012-06-04 23:32:38 +0200 | [diff] [blame] | 688 | |
| 689 | class OpenTest(BaseTest): |
| 690 | def test_binary_modes(self): |
| 691 | with bz2.open(self.filename, "wb") as f: |
| 692 | f.write(self.TEXT) |
| 693 | with open(self.filename, "rb") as f: |
| 694 | file_data = bz2.decompress(f.read()) |
| 695 | self.assertEqual(file_data, self.TEXT) |
| 696 | with bz2.open(self.filename, "rb") as f: |
| 697 | self.assertEqual(f.read(), self.TEXT) |
| 698 | with bz2.open(self.filename, "ab") as f: |
| 699 | f.write(self.TEXT) |
| 700 | with open(self.filename, "rb") as f: |
| 701 | file_data = bz2.decompress(f.read()) |
| 702 | self.assertEqual(file_data, self.TEXT * 2) |
| 703 | |
| 704 | def test_implicit_binary_modes(self): |
| 705 | # Test implicit binary modes (no "b" or "t" in mode string). |
| 706 | with bz2.open(self.filename, "w") as f: |
| 707 | f.write(self.TEXT) |
| 708 | with open(self.filename, "rb") as f: |
| 709 | file_data = bz2.decompress(f.read()) |
| 710 | self.assertEqual(file_data, self.TEXT) |
| 711 | with bz2.open(self.filename, "r") as f: |
| 712 | self.assertEqual(f.read(), self.TEXT) |
| 713 | with bz2.open(self.filename, "a") as f: |
| 714 | f.write(self.TEXT) |
| 715 | with open(self.filename, "rb") as f: |
| 716 | file_data = bz2.decompress(f.read()) |
| 717 | self.assertEqual(file_data, self.TEXT * 2) |
| 718 | |
| 719 | def test_text_modes(self): |
| 720 | text = self.TEXT.decode("ascii") |
| 721 | text_native_eol = text.replace("\n", os.linesep) |
| 722 | with bz2.open(self.filename, "wt") as f: |
| 723 | f.write(text) |
| 724 | with open(self.filename, "rb") as f: |
| 725 | file_data = bz2.decompress(f.read()).decode("ascii") |
| 726 | self.assertEqual(file_data, text_native_eol) |
| 727 | with bz2.open(self.filename, "rt") as f: |
| 728 | self.assertEqual(f.read(), text) |
| 729 | with bz2.open(self.filename, "at") as f: |
| 730 | f.write(text) |
| 731 | with open(self.filename, "rb") as f: |
| 732 | file_data = bz2.decompress(f.read()).decode("ascii") |
| 733 | self.assertEqual(file_data, text_native_eol * 2) |
| 734 | |
| 735 | def test_fileobj(self): |
| 736 | with bz2.open(BytesIO(self.DATA), "r") as f: |
| 737 | self.assertEqual(f.read(), self.TEXT) |
| 738 | with bz2.open(BytesIO(self.DATA), "rb") as f: |
| 739 | self.assertEqual(f.read(), self.TEXT) |
| 740 | text = self.TEXT.decode("ascii") |
| 741 | with bz2.open(BytesIO(self.DATA), "rt") as f: |
| 742 | self.assertEqual(f.read(), text) |
| 743 | |
| 744 | def test_bad_params(self): |
| 745 | # Test invalid parameter combinations. |
| 746 | with self.assertRaises(ValueError): |
| 747 | bz2.open(self.filename, "wbt") |
| 748 | with self.assertRaises(ValueError): |
| 749 | bz2.open(self.filename, "rb", encoding="utf-8") |
| 750 | with self.assertRaises(ValueError): |
| 751 | bz2.open(self.filename, "rb", errors="ignore") |
| 752 | with self.assertRaises(ValueError): |
| 753 | bz2.open(self.filename, "rb", newline="\n") |
| 754 | |
| 755 | def test_encoding(self): |
| 756 | # Test non-default encoding. |
| 757 | text = self.TEXT.decode("ascii") |
| 758 | text_native_eol = text.replace("\n", os.linesep) |
| 759 | with bz2.open(self.filename, "wt", encoding="utf-16-le") as f: |
| 760 | f.write(text) |
| 761 | with open(self.filename, "rb") as f: |
| 762 | file_data = bz2.decompress(f.read()).decode("utf-16-le") |
| 763 | self.assertEqual(file_data, text_native_eol) |
| 764 | with bz2.open(self.filename, "rt", encoding="utf-16-le") as f: |
| 765 | self.assertEqual(f.read(), text) |
| 766 | |
| 767 | def test_encoding_error_handler(self): |
| 768 | # Test with non-default encoding error handler. |
| 769 | with bz2.open(self.filename, "wb") as f: |
| 770 | f.write(b"foo\xffbar") |
| 771 | with bz2.open(self.filename, "rt", encoding="ascii", errors="ignore") \ |
| 772 | as f: |
| 773 | self.assertEqual(f.read(), "foobar") |
| 774 | |
| 775 | def test_newline(self): |
| 776 | # Test with explicit newline (universal newline mode disabled). |
| 777 | text = self.TEXT.decode("ascii") |
| 778 | with bz2.open(self.filename, "wt", newline="\n") as f: |
| 779 | f.write(text) |
| 780 | with bz2.open(self.filename, "rt", newline="\r") as f: |
| 781 | self.assertEqual(f.readlines(), [text]) |
| 782 | |
| 783 | |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 784 | def test_main(): |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 785 | support.run_unittest( |
Walter Dörwald | 21d3a32 | 2003-05-01 17:45:56 +0000 | [diff] [blame] | 786 | BZ2FileTest, |
| 787 | BZ2CompressorTest, |
| 788 | BZ2DecompressorTest, |
Nadeem Vawda | af518c1 | 2012-06-04 23:32:38 +0200 | [diff] [blame] | 789 | CompressDecompressTest, |
| 790 | OpenTest, |
Walter Dörwald | 21d3a32 | 2003-05-01 17:45:56 +0000 | [diff] [blame] | 791 | ) |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 792 | support.reap_children() |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 793 | |
| 794 | if __name__ == '__main__': |
| 795 | test_main() |