Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_bz2.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents f4c5e3a64be2
children 3a992292ccd8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/python
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2 from test import test_support
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3 from test.test_support import TESTFN, import_module
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4
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5 import unittest
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6 from cStringIO import StringIO
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7 import os
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8 import subprocess
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9 import sys
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10
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11 bz2 = import_module('bz2')
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12 from bz2 import BZ2File, BZ2Compressor, BZ2Decompressor
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13
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14 has_cmdline_bunzip2 = sys.platform not in ("win32", "os2emx", "riscos")
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15
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16 class BaseTest(unittest.TestCase):
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17 "Base for other testcases."
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18 TEXT = 'root:x:0:0:root:/root:/bin/bash\nbin:x:1:1:bin:/bin:\ndaemon:x:2:2:daemon:/sbin:\nadm:x:3:4:adm:/var/adm:\nlp:x:4:7:lp:/var/spool/lpd:\nsync:x:5:0:sync:/sbin:/bin/sync\nshutdown:x:6:0:shutdown:/sbin:/sbin/shutdown\nhalt:x:7:0:halt:/sbin:/sbin/halt\nmail:x:8:12:mail:/var/spool/mail:\nnews:x:9:13:news:/var/spool/news:\nuucp:x:10:14:uucp:/var/spool/uucp:\noperator:x:11:0:operator:/root:\ngames:x:12:100:games:/usr/games:\ngopher:x:13:30:gopher:/usr/lib/gopher-data:\nftp:x:14:50:FTP User:/var/ftp:/bin/bash\nnobody:x:65534:65534:Nobody:/home:\npostfix:x:100:101:postfix:/var/spool/postfix:\nniemeyer:x:500:500::/home/niemeyer:/bin/bash\npostgres:x:101:102:PostgreSQL Server:/var/lib/pgsql:/bin/bash\nmysql:x:102:103:MySQL server:/var/lib/mysql:/bin/bash\nwww:x:103:104::/var/www:/bin/false\n'
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19 DATA = '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`'
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20 DATA_CRLF = 'BZh91AY&SY\xaez\xbbN\x00\x01H\xdf\x80\x00\x12@\x02\xff\xf0\x01\x07n\x00?\xe7\xff\xe0@\x01\xbc\xc6`\x86*\x8d=M\xa9\x9a\x86\xd0L@\x0fI\xa6!\xa1\x13\xc8\x88jdi\x8d@\x03@\x1a\x1a\x0c\x0c\x83 \x00\xc4h2\x19\x01\x82D\x84e\t\xe8\x99\x89\x19\x1ah\x00\r\x1a\x11\xaf\x9b\x0fG\xf5(\x1b\x1f?\t\x12\xcf\xb5\xfc\x95E\x00ps\x89\x12^\xa4\xdd\xa2&\x05(\x87\x04\x98\x89u\xe40%\xb6\x19\'\x8c\xc4\x89\xca\x07\x0e\x1b!\x91UIFU%C\x994!DI\xd2\xfa\xf0\xf1N8W\xde\x13A\xf5\x9cr%?\x9f3;I45A\xd1\x8bT\xb1<l\xba\xcb_\xc00xY\x17r\x17\x88\x08\x08@\xa0\ry@\x10\x04$)`\xf2\xce\x89z\xb0s\xec\x9b.iW\x9d\x81\xb5-+t\x9f\x1a\'\x97dB\xf5x\xb5\xbe.[.\xd7\x0e\x81\xe7\x08\x1cN`\x88\x10\xca\x87\xc3!"\x80\x92R\xa1/\xd1\xc0\xe6mf\xac\xbd\x99\xcca\xb3\x8780>\xa4\xc7\x8d\x1a\\"\xad\xa1\xabyBg\x15\xb9l\x88\x88\x91k"\x94\xa4\xd4\x89\xae*\xa6\x0b\x10\x0c\xd6\xd4m\xe86\xec\xb5j\x8a\x86j\';\xca.\x01I\xf2\xaaJ\xe8\x88\x8cU+t3\xfb\x0c\n\xa33\x13r2\r\x16\xe0\xb3(\xbf\x1d\x83r\xe7M\xf0D\x1365\xd8\x88\xd3\xa4\x92\xcb2\x06\x04\\\xc1\xb0\xea//\xbek&\xd8\xe6+t\xe5\xa1\x13\xada\x16\xder5"w]\xa2i\xb7[\x97R \xe2IT\xcd;Z\x04dk4\xad\x8a\t\xd3\x81z\x10\xf1:^`\xab\x1f\xc5\xdc\x91N\x14$+\x9e\xae\xd3\x80'
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21
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22 if has_cmdline_bunzip2:
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23 def decompress(self, data):
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24 pop = subprocess.Popen("bunzip2", shell=True,
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25 stdin=subprocess.PIPE,
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26 stdout=subprocess.PIPE,
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27 stderr=subprocess.STDOUT)
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28 pop.stdin.write(data)
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29 pop.stdin.close()
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30 ret = pop.stdout.read()
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31 pop.stdout.close()
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32 if pop.wait() != 0:
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33 ret = bz2.decompress(data)
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34 return ret
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35
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36 else:
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37 # bunzip2 isn't available to run on Windows.
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38 def decompress(self, data):
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39 return bz2.decompress(data)
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40
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41 class BZ2FileTest(BaseTest):
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42 "Test BZ2File type miscellaneous methods."
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43
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44 def setUp(self):
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45 self.filename = TESTFN
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46
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47 def tearDown(self):
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48 if os.path.isfile(self.filename):
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49 os.unlink(self.filename)
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50
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51 def createTempFile(self, crlf=0):
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52 f = open(self.filename, "wb")
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53 if crlf:
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54 data = self.DATA_CRLF
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55 else:
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56 data = self.DATA
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57 f.write(data)
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58 f.close()
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59
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60 def testRead(self):
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61 # "Test BZ2File.read()"
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62 self.createTempFile()
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63 bz2f = BZ2File(self.filename)
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64 self.assertRaises(TypeError, bz2f.read, None)
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65 self.assertEqual(bz2f.read(), self.TEXT)
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66 bz2f.close()
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67
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68 def testReadChunk10(self):
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69 # "Test BZ2File.read() in chunks of 10 bytes"
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70 self.createTempFile()
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71 bz2f = BZ2File(self.filename)
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72 text = ''
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73 while 1:
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74 str = bz2f.read(10)
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75 if not str:
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76 break
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77 text += str
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78 self.assertEqual(text, text)
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79 bz2f.close()
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80
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81 def testRead100(self):
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82 # "Test BZ2File.read(100)"
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83 self.createTempFile()
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84 bz2f = BZ2File(self.filename)
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85 self.assertEqual(bz2f.read(100), self.TEXT[:100])
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86 bz2f.close()
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87
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88 def testReadLine(self):
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89 # "Test BZ2File.readline()"
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90 self.createTempFile()
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91 bz2f = BZ2File(self.filename)
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92 self.assertRaises(TypeError, bz2f.readline, None)
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93 sio = StringIO(self.TEXT)
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94 for line in sio.readlines():
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95 self.assertEqual(bz2f.readline(), line)
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96 bz2f.close()
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97
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98 def testReadLines(self):
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99 # "Test BZ2File.readlines()"
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100 self.createTempFile()
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101 bz2f = BZ2File(self.filename)
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102 self.assertRaises(TypeError, bz2f.readlines, None)
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103 sio = StringIO(self.TEXT)
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104 self.assertEqual(bz2f.readlines(), sio.readlines())
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105 bz2f.close()
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106
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107 def testIterator(self):
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108 # "Test iter(BZ2File)"
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109 self.createTempFile()
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110 bz2f = BZ2File(self.filename)
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111 sio = StringIO(self.TEXT)
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112 self.assertEqual(list(iter(bz2f)), sio.readlines())
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113 bz2f.close()
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114
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115 def testClosedIteratorDeadlock(self):
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116 # "Test that iteration on a closed bz2file releases the lock."
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117 # http://bugs.python.org/issue3309
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118 self.createTempFile()
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119 bz2f = BZ2File(self.filename)
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120 bz2f.close()
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121 self.assertRaises(ValueError, bz2f.next)
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122 # This call will deadlock of the above .next call failed to
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123 # release the lock.
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124 self.assertRaises(ValueError, bz2f.readlines)
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125
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126 def testXReadLines(self):
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127 # "Test BZ2File.xreadlines()"
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128 self.createTempFile()
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129 bz2f = BZ2File(self.filename)
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130 sio = StringIO(self.TEXT)
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131 self.assertEqual(list(bz2f.xreadlines()), sio.readlines())
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132 bz2f.close()
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133
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134 def testUniversalNewlinesLF(self):
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135 # "Test BZ2File.read() with universal newlines (\\n)"
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136 self.createTempFile()
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137 bz2f = BZ2File(self.filename, "rU")
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138 self.assertEqual(bz2f.read(), self.TEXT)
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139 self.assertEqual(bz2f.newlines, "\n")
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140 bz2f.close()
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141
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142 def testUniversalNewlinesCRLF(self):
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143 # "Test BZ2File.read() with universal newlines (\\r\\n)"
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144 self.createTempFile(crlf=1)
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145 bz2f = BZ2File(self.filename, "rU")
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146 self.assertEqual(bz2f.read(), self.TEXT)
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147 self.assertEqual(bz2f.newlines, "\r\n")
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148 bz2f.close()
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149
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150 def testWrite(self):
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151 # "Test BZ2File.write()"
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152 bz2f = BZ2File(self.filename, "w")
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153 self.assertRaises(TypeError, bz2f.write)
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154 bz2f.write(self.TEXT)
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155 bz2f.close()
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156 f = open(self.filename, 'rb')
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157 self.assertEqual(self.decompress(f.read()), self.TEXT)
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158 f.close()
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159
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160 def testWriteChunks10(self):
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161 # "Test BZ2File.write() with chunks of 10 bytes"
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162 bz2f = BZ2File(self.filename, "w")
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163 n = 0
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164 while 1:
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165 str = self.TEXT[n*10:(n+1)*10]
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166 if not str:
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167 break
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168 bz2f.write(str)
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169 n += 1
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170 bz2f.close()
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171 f = open(self.filename, 'rb')
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172 self.assertEqual(self.decompress(f.read()), self.TEXT)
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173 f.close()
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174
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175 def testWriteLines(self):
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176 # "Test BZ2File.writelines()"
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177 bz2f = BZ2File(self.filename, "w")
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178 self.assertRaises(TypeError, bz2f.writelines)
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179 sio = StringIO(self.TEXT)
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180 bz2f.writelines(sio.readlines())
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181 bz2f.close()
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182 # patch #1535500
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183 self.assertRaises(ValueError, bz2f.writelines, ["a"])
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184 f = open(self.filename, 'rb')
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185 self.assertEqual(self.decompress(f.read()), self.TEXT)
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186 f.close()
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187
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188 def testWriteMethodsOnReadOnlyFile(self):
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189 bz2f = BZ2File(self.filename, "w")
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190 bz2f.write("abc")
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191 bz2f.close()
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192
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193 bz2f = BZ2File(self.filename, "r")
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194 self.assertRaises(IOError, bz2f.write, "a")
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195 self.assertRaises(IOError, bz2f.writelines, ["a"])
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196
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197 def testSeekForward(self):
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198 # "Test BZ2File.seek(150, 0)"
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199 self.createTempFile()
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200 bz2f = BZ2File(self.filename)
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201 self.assertRaises(TypeError, bz2f.seek)
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202 bz2f.seek(150)
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203 self.assertEqual(bz2f.read(), self.TEXT[150:])
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204 bz2f.close()
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205
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206 def testSeekBackwards(self):
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207 # "Test BZ2File.seek(-150, 1)"
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208 self.createTempFile()
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209 bz2f = BZ2File(self.filename)
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210 bz2f.read(500)
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211 bz2f.seek(-150, 1)
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212 self.assertEqual(bz2f.read(), self.TEXT[500-150:])
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213 bz2f.close()
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214
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215 def testSeekBackwardsFromEnd(self):
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216 # "Test BZ2File.seek(-150, 2)"
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217 self.createTempFile()
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218 bz2f = BZ2File(self.filename)
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219 bz2f.seek(-150, 2)
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220 self.assertEqual(bz2f.read(), self.TEXT[len(self.TEXT)-150:])
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221 bz2f.close()
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222
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223 def testSeekPostEnd(self):
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224 # "Test BZ2File.seek(150000)"
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225 self.createTempFile()
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226 bz2f = BZ2File(self.filename)
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227 bz2f.seek(150000)
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228 self.assertEqual(bz2f.tell(), len(self.TEXT))
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229 self.assertEqual(bz2f.read(), "")
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230 bz2f.close()
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231
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232 def testSeekPostEndTwice(self):
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233 # "Test BZ2File.seek(150000) twice"
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234 self.createTempFile()
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235 bz2f = BZ2File(self.filename)
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236 bz2f.seek(150000)
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237 bz2f.seek(150000)
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238 self.assertEqual(bz2f.tell(), len(self.TEXT))
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239 self.assertEqual(bz2f.read(), "")
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240 bz2f.close()
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241
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242 def testSeekPreStart(self):
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243 # "Test BZ2File.seek(-150, 0)"
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244 self.createTempFile()
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245 bz2f = BZ2File(self.filename)
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246 bz2f.seek(-150)
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247 self.assertEqual(bz2f.tell(), 0)
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parents: 26127
diff changeset
248 self.assertEqual(bz2f.read(), self.TEXT)
26129
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Tim Peters <tim.peters@gmail.com>
parents: 26128
diff changeset
249 bz2f.close()
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521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
250
27855
0160ffcb19e3 Add test to ensure files (fds) don't leak
Neal Norwitz <nnorwitz@gmail.com>
parents: 26939
diff changeset
251 def testOpenDel(self):
28885
671e4e2eec4b Applying patch #728656, by logistix, fixing opening of nonexistent
Gustavo Niemeyer <gustavo@niemeyer.net>
parents: 27855
diff changeset
252 # "Test opening and deleting a file many times"
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Neal Norwitz <nnorwitz@gmail.com>
parents: 26939
diff changeset
253 self.createTempFile()
0160ffcb19e3 Add test to ensure files (fds) don't leak
Neal Norwitz <nnorwitz@gmail.com>
parents: 26939
diff changeset
254 for i in xrange(10000):
0160ffcb19e3 Add test to ensure files (fds) don't leak
Neal Norwitz <nnorwitz@gmail.com>
parents: 26939
diff changeset
255 o = BZ2File(self.filename)
0160ffcb19e3 Add test to ensure files (fds) don't leak
Neal Norwitz <nnorwitz@gmail.com>
parents: 26939
diff changeset
256 del o
0160ffcb19e3 Add test to ensure files (fds) don't leak
Neal Norwitz <nnorwitz@gmail.com>
parents: 26939
diff changeset
257
28885
671e4e2eec4b Applying patch #728656, by logistix, fixing opening of nonexistent
Gustavo Niemeyer <gustavo@niemeyer.net>
parents: 27855
diff changeset
258 def testOpenNonexistent(self):
671e4e2eec4b Applying patch #728656, by logistix, fixing opening of nonexistent
Gustavo Niemeyer <gustavo@niemeyer.net>
parents: 27855
diff changeset
259 # "Test opening a nonexistent file"
671e4e2eec4b Applying patch #728656, by logistix, fixing opening of nonexistent
Gustavo Niemeyer <gustavo@niemeyer.net>
parents: 27855
diff changeset
260 self.assertRaises(IOError, BZ2File, "/non/existent")
671e4e2eec4b Applying patch #728656, by logistix, fixing opening of nonexistent
Gustavo Niemeyer <gustavo@niemeyer.net>
parents: 27855
diff changeset
261
35012
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
262 def testModeU(self):
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
263 # Bug #1194181: bz2.BZ2File opened for write with mode "U"
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
264 self.createTempFile()
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
265 bz2f = BZ2File(self.filename, "U")
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
266 bz2f.close()
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
267 f = file(self.filename)
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
268 f.seek(0, 2)
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
269 self.assertEqual(f.tell(), len(self.DATA))
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
270 f.close()
e394f7e8a0c1 Backport bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
Georg Brandl <georg@python.org>
parents: 33877
diff changeset
271
35439
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
272 def testBug1191043(self):
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
273 # readlines() for files containing no newline
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
274 data = 'BZh91AY&SY\xd9b\x89]\x00\x00\x00\x03\x80\x04\x00\x02\x00\x0c\x00 \x00!\x9ah3M\x13<]\xc9\x14\xe1BCe\x8a%t'
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
275 f = open(self.filename, "wb")
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
276 f.write(data)
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
277 f.close()
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
278 bz2f = BZ2File(self.filename)
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
279 lines = bz2f.readlines()
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
280 bz2f.close()
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
281 self.assertEqual(lines, ['Test'])
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
282 bz2f = BZ2File(self.filename)
35462
256e7384f24d Add list() around xreadlines()
Georg Brandl <georg@python.org>
parents: 35439
diff changeset
283 xlines = list(bz2f.xreadlines())
35439
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
284 bz2f.close()
39382
3bfef3db32b3 Bug #1535182: really test the xreadlines() method of bz2 objects.
Georg Brandl <georg@python.org>
parents: 38961
diff changeset
285 self.assertEqual(xlines, ['Test'])
35439
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
286
50698
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
287 def testContextProtocol(self):
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
288 # BZ2File supports the context management protocol
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
289 f = None
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
290 with BZ2File(self.filename, "wb") as f:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
291 f.write(b"xxx")
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
292 f = BZ2File(self.filename, "rb")
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
293 f.close()
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
294 try:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
295 with f:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
296 pass
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
297 except ValueError:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
298 pass
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
299 else:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
300 self.fail("__enter__ on a closed file didn't raise an exception")
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
301 try:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
302 with BZ2File(self.filename, "wb") as f:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
303 1/0
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
304 except ZeroDivisionError:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
305 pass
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
306 else:
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
307 self.fail("1/0 didn't raise an exception")
5d5d9074f4ca Issue #3860: GzipFile and BZ2File now support the context manager protocol.
Antoine Pitrou <solipsis@pitrou.net>
parents: 47906
diff changeset
308
35439
1707c945d6c2 Backport fixes for bugs #1191043 and #1215928.
Georg Brandl <georg@python.org>
parents: 35012
diff changeset
309
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
310 class BZ2CompressorTest(BaseTest):
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
311 def testCompress(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
312 # "Test BZ2Compressor.compress()/flush()"
23ef7c163a12 Whitespace normalization.
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parents: 26127
diff changeset
313 bz2c = BZ2Compressor()
33877
a8c979cc4fa6 Add error checks for the bz2, cStringIO and operator modules.
Walter Dörwald <walter@livinglogic.de>
parents: 29066
diff changeset
314 self.assertRaises(TypeError, bz2c.compress)
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
315 data = bz2c.compress(self.TEXT)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
316 data += bz2c.flush()
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
317 self.assertEqual(self.decompress(data), self.TEXT)
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
318
26128
23ef7c163a12 Whitespace normalization.
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parents: 26127
diff changeset
319 def testCompressChunks10(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
320 # "Test BZ2Compressor.compress()/flush() with chunks of 10 bytes"
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
321 bz2c = BZ2Compressor()
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
322 n = 0
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
323 data = ''
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
324 while 1:
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
325 str = self.TEXT[n*10:(n+1)*10]
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
326 if not str:
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
327 break
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
328 data += bz2c.compress(str)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
329 n += 1
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
330 data += bz2c.flush()
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
331 self.assertEqual(self.decompress(data), self.TEXT)
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
332
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
333 class BZ2DecompressorTest(BaseTest):
33877
a8c979cc4fa6 Add error checks for the bz2, cStringIO and operator modules.
Walter Dörwald <walter@livinglogic.de>
parents: 29066
diff changeset
334 def test_Constructor(self):
a8c979cc4fa6 Add error checks for the bz2, cStringIO and operator modules.
Walter Dörwald <walter@livinglogic.de>
parents: 29066
diff changeset
335 self.assertRaises(TypeError, BZ2Decompressor, 42)
a8c979cc4fa6 Add error checks for the bz2, cStringIO and operator modules.
Walter Dörwald <walter@livinglogic.de>
parents: 29066
diff changeset
336
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
337 def testDecompress(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
338 # "Test BZ2Decompressor.decompress()"
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
339 bz2d = BZ2Decompressor()
33877
a8c979cc4fa6 Add error checks for the bz2, cStringIO and operator modules.
Walter Dörwald <walter@livinglogic.de>
parents: 29066
diff changeset
340 self.assertRaises(TypeError, bz2d.decompress)
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
341 text = bz2d.decompress(self.DATA)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
342 self.assertEqual(text, self.TEXT)
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
343
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
344 def testDecompressChunks10(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
345 # "Test BZ2Decompressor.decompress() with chunks of 10 bytes"
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
346 bz2d = BZ2Decompressor()
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
347 text = ''
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
348 n = 0
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
349 while 1:
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
350 str = self.DATA[n*10:(n+1)*10]
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
351 if not str:
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
352 break
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
353 text += bz2d.decompress(str)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
354 n += 1
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
355 self.assertEqual(text, self.TEXT)
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
356
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
357 def testDecompressUnusedData(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
358 # "Test BZ2Decompressor.decompress() with unused data"
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
359 bz2d = BZ2Decompressor()
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
360 unused_data = "this is unused data"
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
361 text = bz2d.decompress(self.DATA+unused_data)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
362 self.assertEqual(text, self.TEXT)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
363 self.assertEqual(bz2d.unused_data, unused_data)
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
364
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
365 def testEOFError(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
366 # "Calling BZ2Decompressor.decompress() after EOS must raise EOFError"
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
367 bz2d = BZ2Decompressor()
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
368 text = bz2d.decompress(self.DATA)
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
369 self.assertRaises(EOFError, bz2d.decompress, "anything")
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
370
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
371
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
372 class FuncTest(BaseTest):
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
373 "Test module functions"
26126
98f3fd1ed42f Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26124
diff changeset
374
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
375 def testCompress(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
376 # "Test compress() function"
26129
4203047e2022 Many changes to get this to pass on Windows, and to make it easier to
Tim Peters <tim.peters@gmail.com>
parents: 26128
diff changeset
377 data = bz2.compress(self.TEXT)
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
378 self.assertEqual(self.decompress(data), self.TEXT)
26037
521e89c4ff44 Patch implementing bz2 module.
Gustavo Niemeyer <gustavo@niemeyer.net>
parents:
diff changeset
379
26128
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
380 def testDecompress(self):
23ef7c163a12 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 26127
diff changeset
381 # "Test decompress() function"
26129
4203047e2022 Many changes to get this to pass on Windows, and to make it easier to
Tim Peters <tim.peters@gmail.com>
parents: 26128
diff changeset
382 text = bz2.decompress(self.DATA)
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383 self.assertEqual(text, self.TEXT)
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384
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385 def testDecompressEmpty(self):
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386 # "Test decompress() function with empty string"
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387 text = bz2.decompress("")
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388 self.assertEqual(text, "")
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389
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390 def testDecompressIncomplete(self):
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391 # "Test decompress() function with incomplete data"
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392 self.assertRaises(ValueError, bz2.decompress, self.DATA[:-10])
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393
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394 def test_main():
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395 test_support.run_unittest(
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396 BZ2FileTest,
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397 BZ2CompressorTest,
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398 BZ2DecompressorTest,
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399 FuncTest
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400 )
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401 test_support.reap_children()
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402
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403 if __name__ == '__main__':
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404 test_main()
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405
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406 # vim:ts=4:sw=4