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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 |
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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 import 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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248 self.assertEqual(bz2f.read(), self.TEXT) |
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249 bz2f.close() |
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250 |
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251 def testOpenDel(self): |
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252 # "Test opening and deleting a file many times" |
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253 self.createTempFile() |
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254 for i in xrange(10000): |
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255 o = BZ2File(self.filename) |
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256 del o |
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257 |
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258 def testOpenNonexistent(self): |
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259 # "Test opening a nonexistent file" |
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260 self.assertRaises(IOError, BZ2File, "/non/existent") |
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261 |
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262 def testModeU(self): |
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263 # Bug #1194181: bz2.BZ2File opened for write with mode "U" |
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264 self.createTempFile() |
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265 bz2f = BZ2File(self.filename, "U") |
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266 bz2f.close() |
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267 f = file(self.filename) |
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268 f.seek(0, 2) |
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269 self.assertEqual(f.tell(), len(self.DATA)) |
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270 f.close() |
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271 |
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272 def testBug1191043(self): |
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273 # readlines() for files containing no newline |
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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' |
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275 f = open(self.filename, "wb") |
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276 f.write(data) |
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277 f.close() |
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278 bz2f = BZ2File(self.filename) |
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279 lines = bz2f.readlines() |
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280 bz2f.close() |
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281 self.assertEqual(lines, ['Test']) |
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282 bz2f = BZ2File(self.filename) |
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283 xlines = list(bz2f.xreadlines()) |
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284 bz2f.close() |
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285 self.assertEqual(xlines, ['Test']) |
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286 |
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287 |
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288 class BZ2CompressorTest(BaseTest): |
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289 def testCompress(self): |
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290 # "Test BZ2Compressor.compress()/flush()" |
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291 bz2c = BZ2Compressor() |
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292 self.assertRaises(TypeError, bz2c.compress) |
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293 data = bz2c.compress(self.TEXT) |
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294 data += bz2c.flush() |
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295 self.assertEqual(self.decompress(data), self.TEXT) |
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296 |
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297 def testCompressChunks10(self): |
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298 # "Test BZ2Compressor.compress()/flush() with chunks of 10 bytes" |
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299 bz2c = BZ2Compressor() |
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300 n = 0 |
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301 data = '' |
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302 while 1: |
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303 str = self.TEXT[n*10:(n+1)*10] |
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304 if not str: |
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305 break |
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306 data += bz2c.compress(str) |
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307 n += 1 |
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308 data += bz2c.flush() |
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309 self.assertEqual(self.decompress(data), self.TEXT) |
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310 |
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311 class BZ2DecompressorTest(BaseTest): |
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312 def test_Constructor(self): |
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313 self.assertRaises(TypeError, BZ2Decompressor, 42) |
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314 |
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315 def testDecompress(self): |
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316 # "Test BZ2Decompressor.decompress()" |
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317 bz2d = BZ2Decompressor() |
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318 self.assertRaises(TypeError, bz2d.decompress) |
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319 text = bz2d.decompress(self.DATA) |
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320 self.assertEqual(text, self.TEXT) |
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321 |
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322 def testDecompressChunks10(self): |
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323 # "Test BZ2Decompressor.decompress() with chunks of 10 bytes" |
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324 bz2d = BZ2Decompressor() |
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325 text = '' |
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326 n = 0 |
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327 while 1: |
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328 str = self.DATA[n*10:(n+1)*10] |
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329 if not str: |
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330 break |
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331 text += bz2d.decompress(str) |
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332 n += 1 |
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333 self.assertEqual(text, self.TEXT) |
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334 |
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335 def testDecompressUnusedData(self): |
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336 # "Test BZ2Decompressor.decompress() with unused data" |
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337 bz2d = BZ2Decompressor() |
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338 unused_data = "this is unused data" |
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339 text = bz2d.decompress(self.DATA+unused_data) |
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340 self.assertEqual(text, self.TEXT) |
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341 self.assertEqual(bz2d.unused_data, unused_data) |
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342 |
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343 def testEOFError(self): |
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344 # "Calling BZ2Decompressor.decompress() after EOS must raise EOFError" |
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345 bz2d = BZ2Decompressor() |
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346 text = bz2d.decompress(self.DATA) |
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347 self.assertRaises(EOFError, bz2d.decompress, "anything") |
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348 |
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349 |
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350 class FuncTest(BaseTest): |
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351 "Test module functions" |
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352 |
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353 def testCompress(self): |
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354 # "Test compress() function" |
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355 data = bz2.compress(self.TEXT) |
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356 self.assertEqual(self.decompress(data), self.TEXT) |
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357 |
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358 def testDecompress(self): |
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359 # "Test decompress() function" |
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360 text = bz2.decompress(self.DATA) |
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361 self.assertEqual(text, self.TEXT) |
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362 |
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363 def testDecompressEmpty(self): |
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364 # "Test decompress() function with empty string" |
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365 text = bz2.decompress("") |
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366 self.assertEqual(text, "") |
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367 |
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368 def testDecompressIncomplete(self): |
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369 # "Test decompress() function with incomplete data" |
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370 self.assertRaises(ValueError, bz2.decompress, self.DATA[:-10]) |
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371 |
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372 def test_main(): |
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373 test_support.run_unittest( |
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374 BZ2FileTest, |
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375 BZ2CompressorTest, |
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376 BZ2DecompressorTest, |
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377 FuncTest |
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378 ) |
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379 test_support.reap_children() |
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380 |
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381 if __name__ == '__main__': |
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382 test_main() |
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383 |
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384 # vim:ts=4:sw=4 |