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Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +00001#!/usr/bin/python
Tim Peters499d09a2002-11-09 06:31:56 +00002from test import test_support
Tim Petersc2937042002-11-14 16:23:29 +00003from test.test_support import TESTFN
Tim Peters499d09a2002-11-09 06:31:56 +00004
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +00005import unittest
6from cStringIO import StringIO
7import os
8import popen2
Tim Peters499d09a2002-11-09 06:31:56 +00009import sys
10
11import bz2
12from bz2 import BZ2File, BZ2Compressor, BZ2Decompressor
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +000013
Andrew MacIntyrec70a8e42002-12-31 11:28:22 +000014has_cmdline_bunzip2 = sys.platform not in ("win32", "os2emx")
Tim Peters9de06bd2002-11-09 06:45:31 +000015
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +000016class BaseTest(unittest.TestCase):
Tim Peters3de75262002-11-09 05:26:15 +000017 "Base for other testcases."
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'
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`'
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'
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +000021
Tim Peters9de06bd2002-11-09 06:45:31 +000022 if has_cmdline_bunzip2:
23 def decompress(self, data):
24 pop = popen2.Popen3("bunzip2", capturestderr=1)
25 pop.tochild.write(data)
26 pop.tochild.close()
27 ret = pop.fromchild.read()
28 pop.fromchild.close()
29 if pop.wait() != 0:
30 ret = bz2.decompress(data)
31 return ret
Tim Peters499d09a2002-11-09 06:31:56 +000032
Tim Peters9de06bd2002-11-09 06:45:31 +000033 else:
34 # popen2.Popen3 doesn't exist on Windows, and even if it did, bunzip2
35 # isn't available to run.
Tim Peters9de06bd2002-11-09 06:45:31 +000036 def decompress(self, data):
37 return bz2.decompress(data)
38
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +000039class BZ2FileTest(BaseTest):
Tim Peters3de75262002-11-09 05:26:15 +000040 "Test MCRYPT type miscelaneous methods."
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +000041
Tim Peters3de75262002-11-09 05:26:15 +000042 def setUp(self):
Tim Petersc2937042002-11-14 16:23:29 +000043 self.filename = TESTFN
Tim Peters230a60c2002-11-09 05:08:07 +000044
Tim Peters3de75262002-11-09 05:26:15 +000045 def tearDown(self):
46 if os.path.isfile(self.filename):
47 os.unlink(self.filename)
Tim Peters230a60c2002-11-09 05:08:07 +000048
Tim Peters3de75262002-11-09 05:26:15 +000049 def createTempFile(self, crlf=0):
50 f = open(self.filename, "wb")
51 if crlf:
52 data = self.DATA_CRLF
53 else:
54 data = self.DATA
55 f.write(data)
56 f.close()
Tim Peters230a60c2002-11-09 05:08:07 +000057
Tim Peters3de75262002-11-09 05:26:15 +000058 def testRead(self):
59 # "Test BZ2File.read()"
60 self.createTempFile()
61 bz2f = BZ2File(self.filename)
62 self.assertEqual(bz2f.read(), self.TEXT)
63 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +000064
Tim Peters3de75262002-11-09 05:26:15 +000065 def testReadChunk10(self):
66 # "Test BZ2File.read() in chunks of 10 bytes"
67 self.createTempFile()
68 bz2f = BZ2File(self.filename)
69 text = ''
70 while 1:
71 str = bz2f.read(10)
72 if not str:
73 break
74 text += str
75 self.assertEqual(text, text)
76 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +000077
Tim Peters3de75262002-11-09 05:26:15 +000078 def testRead100(self):
79 # "Test BZ2File.read(100)"
80 self.createTempFile()
81 bz2f = BZ2File(self.filename)
82 self.assertEqual(bz2f.read(100), self.TEXT[:100])
83 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +000084
Tim Peters3de75262002-11-09 05:26:15 +000085 def testReadLine(self):
86 # "Test BZ2File.readline()"
87 self.createTempFile()
88 bz2f = BZ2File(self.filename)
89 sio = StringIO(self.TEXT)
90 for line in sio.readlines():
91 self.assertEqual(bz2f.readline(), line)
92 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +000093
Tim Peters3de75262002-11-09 05:26:15 +000094 def testReadLines(self):
95 # "Test BZ2File.readlines()"
96 self.createTempFile()
97 bz2f = BZ2File(self.filename)
98 sio = StringIO(self.TEXT)
99 self.assertEqual(bz2f.readlines(), sio.readlines())
100 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000101
Tim Peters3de75262002-11-09 05:26:15 +0000102 def testIterator(self):
103 # "Test iter(BZ2File)"
104 self.createTempFile()
105 bz2f = BZ2File(self.filename)
106 sio = StringIO(self.TEXT)
107 self.assertEqual(list(iter(bz2f)), sio.readlines())
108 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000109
Tim Peters3de75262002-11-09 05:26:15 +0000110 def testXReadLines(self):
111 # "Test BZ2File.xreadlines()"
112 self.createTempFile()
113 bz2f = BZ2File(self.filename)
114 sio = StringIO(self.TEXT)
115 self.assertEqual(list(bz2f.xreadlines()), sio.readlines())
116 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000117
Tim Peters3de75262002-11-09 05:26:15 +0000118 def testUniversalNewlinesLF(self):
119 # "Test BZ2File.read() with universal newlines (\\n)"
120 self.createTempFile()
121 bz2f = BZ2File(self.filename, "rU")
122 self.assertEqual(bz2f.read(), self.TEXT)
123 self.assertEqual(bz2f.newlines, "\n")
124 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000125
Tim Peters3de75262002-11-09 05:26:15 +0000126 def testUniversalNewlinesCRLF(self):
127 # "Test BZ2File.read() with universal newlines (\\r\\n)"
128 self.createTempFile(crlf=1)
129 bz2f = BZ2File(self.filename, "rU")
130 self.assertEqual(bz2f.read(), self.TEXT)
131 self.assertEqual(bz2f.newlines, "\r\n")
132 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000133
Tim Peters3de75262002-11-09 05:26:15 +0000134 def testWrite(self):
135 # "Test BZ2File.write()"
136 bz2f = BZ2File(self.filename, "w")
137 bz2f.write(self.TEXT)
138 bz2f.close()
Tim Peters63c10812002-11-09 06:49:43 +0000139 f = open(self.filename, 'rb')
Tim Peters3de75262002-11-09 05:26:15 +0000140 self.assertEqual(self.decompress(f.read()), self.TEXT)
141 f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000142
Tim Peters3de75262002-11-09 05:26:15 +0000143 def testWriteChunks10(self):
144 # "Test BZ2File.write() with chunks of 10 bytes"
145 bz2f = BZ2File(self.filename, "w")
146 n = 0
147 while 1:
148 str = self.TEXT[n*10:(n+1)*10]
149 if not str:
150 break
151 bz2f.write(str)
152 n += 1
153 bz2f.close()
Tim Peters63c10812002-11-09 06:49:43 +0000154 f = open(self.filename, 'rb')
Tim Peters3de75262002-11-09 05:26:15 +0000155 self.assertEqual(self.decompress(f.read()), self.TEXT)
156 f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000157
Tim Peters3de75262002-11-09 05:26:15 +0000158 def testWriteLines(self):
159 # "Test BZ2File.writelines()"
160 bz2f = BZ2File(self.filename, "w")
161 sio = StringIO(self.TEXT)
162 bz2f.writelines(sio.readlines())
163 bz2f.close()
Tim Peters63c10812002-11-09 06:49:43 +0000164 f = open(self.filename, 'rb')
Tim Peters3de75262002-11-09 05:26:15 +0000165 self.assertEqual(self.decompress(f.read()), self.TEXT)
166 f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000167
Tim Peters3de75262002-11-09 05:26:15 +0000168 def testSeekForward(self):
169 # "Test BZ2File.seek(150, 0)"
170 self.createTempFile()
171 bz2f = BZ2File(self.filename)
172 bz2f.seek(150)
173 self.assertEqual(bz2f.read(), self.TEXT[150:])
Tim Peters499d09a2002-11-09 06:31:56 +0000174 bz2f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000175
Tim Peters3de75262002-11-09 05:26:15 +0000176 def testSeekBackwards(self):
177 # "Test BZ2File.seek(-150, 1)"
178 self.createTempFile()
179 bz2f = BZ2File(self.filename)
180 bz2f.read(500)
181 bz2f.seek(-150, 1)
182 self.assertEqual(bz2f.read(), self.TEXT[500-150:])
Tim Peters499d09a2002-11-09 06:31:56 +0000183 bz2f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000184
Tim Peters3de75262002-11-09 05:26:15 +0000185 def testSeekBackwardsFromEnd(self):
186 # "Test BZ2File.seek(-150, 2)"
187 self.createTempFile()
188 bz2f = BZ2File(self.filename)
189 bz2f.seek(-150, 2)
190 self.assertEqual(bz2f.read(), self.TEXT[len(self.TEXT)-150:])
Tim Peters499d09a2002-11-09 06:31:56 +0000191 bz2f.close()
Tim Peters230a60c2002-11-09 05:08:07 +0000192
Tim Peters3de75262002-11-09 05:26:15 +0000193 def testSeekPostEnd(self):
194 # "Test BZ2File.seek(150000)"
195 self.createTempFile()
196 bz2f = BZ2File(self.filename)
197 bz2f.seek(150000)
198 self.assertEqual(bz2f.tell(), len(self.TEXT))
199 self.assertEqual(bz2f.read(), "")
Tim Peters499d09a2002-11-09 06:31:56 +0000200 bz2f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000201
Tim Peters3de75262002-11-09 05:26:15 +0000202 def testSeekPostEndTwice(self):
203 # "Test BZ2File.seek(150000) twice"
204 self.createTempFile()
205 bz2f = BZ2File(self.filename)
206 bz2f.seek(150000)
207 bz2f.seek(150000)
208 self.assertEqual(bz2f.tell(), len(self.TEXT))
209 self.assertEqual(bz2f.read(), "")
Tim Peters499d09a2002-11-09 06:31:56 +0000210 bz2f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000211
Tim Peters3de75262002-11-09 05:26:15 +0000212 def testSeekPreStart(self):
213 # "Test BZ2File.seek(-150, 0)"
214 self.createTempFile()
215 bz2f = BZ2File(self.filename)
216 bz2f.seek(-150)
217 self.assertEqual(bz2f.tell(), 0)
218 self.assertEqual(bz2f.read(), self.TEXT)
Tim Peters499d09a2002-11-09 06:31:56 +0000219 bz2f.close()
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000220
Neal Norwitz7cbd2472003-02-12 23:09:53 +0000221 def testOpenDel(self):
222 self.createTempFile()
223 for i in xrange(10000):
224 o = BZ2File(self.filename)
225 del o
226
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000227class BZ2CompressorTest(BaseTest):
Tim Peters3de75262002-11-09 05:26:15 +0000228 def testCompress(self):
229 # "Test BZ2Compressor.compress()/flush()"
230 bz2c = BZ2Compressor()
231 data = bz2c.compress(self.TEXT)
232 data += bz2c.flush()
233 self.assertEqual(self.decompress(data), self.TEXT)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000234
Tim Peters3de75262002-11-09 05:26:15 +0000235 def testCompressChunks10(self):
236 # "Test BZ2Compressor.compress()/flush() with chunks of 10 bytes"
237 bz2c = BZ2Compressor()
238 n = 0
239 data = ''
240 while 1:
241 str = self.TEXT[n*10:(n+1)*10]
242 if not str:
243 break
244 data += bz2c.compress(str)
245 n += 1
246 data += bz2c.flush()
247 self.assertEqual(self.decompress(data), self.TEXT)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000248
249class BZ2DecompressorTest(BaseTest):
Tim Peters3de75262002-11-09 05:26:15 +0000250 def testDecompress(self):
251 # "Test BZ2Decompressor.decompress()"
252 bz2d = BZ2Decompressor()
253 text = bz2d.decompress(self.DATA)
254 self.assertEqual(text, self.TEXT)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000255
Tim Peters3de75262002-11-09 05:26:15 +0000256 def testDecompressChunks10(self):
257 # "Test BZ2Decompressor.decompress() with chunks of 10 bytes"
258 bz2d = BZ2Decompressor()
259 text = ''
260 n = 0
261 while 1:
262 str = self.DATA[n*10:(n+1)*10]
263 if not str:
264 break
265 text += bz2d.decompress(str)
266 n += 1
267 self.assertEqual(text, self.TEXT)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000268
Tim Peters3de75262002-11-09 05:26:15 +0000269 def testDecompressUnusedData(self):
270 # "Test BZ2Decompressor.decompress() with unused data"
271 bz2d = BZ2Decompressor()
272 unused_data = "this is unused data"
273 text = bz2d.decompress(self.DATA+unused_data)
274 self.assertEqual(text, self.TEXT)
275 self.assertEqual(bz2d.unused_data, unused_data)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000276
Tim Peters3de75262002-11-09 05:26:15 +0000277 def testEOFError(self):
278 # "Calling BZ2Decompressor.decompress() after EOS must raise EOFError"
279 bz2d = BZ2Decompressor()
280 text = bz2d.decompress(self.DATA)
281 self.assertRaises(EOFError, bz2d.decompress, "anything")
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000282
283
284class FuncTest(BaseTest):
Tim Peters3de75262002-11-09 05:26:15 +0000285 "Test module functions"
Tim Peters230a60c2002-11-09 05:08:07 +0000286
Tim Peters3de75262002-11-09 05:26:15 +0000287 def testCompress(self):
288 # "Test compress() function"
Tim Peters499d09a2002-11-09 06:31:56 +0000289 data = bz2.compress(self.TEXT)
Tim Peters3de75262002-11-09 05:26:15 +0000290 self.assertEqual(self.decompress(data), self.TEXT)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000291
Tim Peters3de75262002-11-09 05:26:15 +0000292 def testDecompress(self):
293 # "Test decompress() function"
Tim Peters499d09a2002-11-09 06:31:56 +0000294 text = bz2.decompress(self.DATA)
Tim Peters3de75262002-11-09 05:26:15 +0000295 self.assertEqual(text, self.TEXT)
Tim Peters230a60c2002-11-09 05:08:07 +0000296
Tim Peters3de75262002-11-09 05:26:15 +0000297 def testDecompressEmpty(self):
298 # "Test decompress() function with empty string"
Tim Peters499d09a2002-11-09 06:31:56 +0000299 text = bz2.decompress("")
Tim Peters3de75262002-11-09 05:26:15 +0000300 self.assertEqual(text, "")
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000301
Tim Peters3de75262002-11-09 05:26:15 +0000302 def testDecompressIncomplete(self):
303 # "Test decompress() function with incomplete data"
Tim Peters499d09a2002-11-09 06:31:56 +0000304 self.assertRaises(ValueError, bz2.decompress, self.DATA[:-10])
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000305
306def test_main():
Tim Peters499d09a2002-11-09 06:31:56 +0000307 suite = unittest.TestSuite()
308 for test in (BZ2FileTest,
309 BZ2CompressorTest,
310 BZ2DecompressorTest,
311 FuncTest):
312 suite.addTest(unittest.makeSuite(test))
313 test_support.run_suite(suite)
Gustavo Niemeyerf8ca8362002-11-05 16:50:05 +0000314
315if __name__ == '__main__':
316 test_main()
317
318# vim:ts=4:sw=4