Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 1 | #! /usr/bin/env python |
| 2 | """Test script for the gzip module. |
| 3 | """ |
| 4 | |
| 5 | import unittest |
| 6 | from test import test_support |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 7 | import sys, os |
Guido van Rossum | 3b0a329 | 2002-08-09 16:38:32 +0000 | [diff] [blame] | 8 | import gzip |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 9 | |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 10 | |
| 11 | data1 = """ int length=DEFAULTALLOC, err = Z_OK; |
| 12 | PyObject *RetVal; |
| 13 | int flushmode = Z_FINISH; |
| 14 | unsigned long start_total_out; |
| 15 | |
| 16 | """ |
| 17 | |
| 18 | data2 = """/* zlibmodule.c -- gzip-compatible data compression */ |
Neal Norwitz | 014f103 | 2004-07-29 03:55:56 +0000 | [diff] [blame] | 19 | /* See http://www.gzip.org/zlib/ |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 20 | /* See http://www.winimage.com/zLibDll for Windows */ |
| 21 | """ |
| 22 | |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 23 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 24 | class TestGzip(unittest.TestCase): |
| 25 | filename = test_support.TESTFN |
Tim Peters | 5cfb05e | 2004-07-27 21:02:02 +0000 | [diff] [blame] | 26 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 27 | def setUp (self): |
| 28 | pass |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 29 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 30 | def tearDown (self): |
| 31 | try: |
| 32 | os.unlink(self.filename) |
| 33 | except os.error: |
| 34 | pass |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 35 | |
Andrew M. Kuchling | 85ab738 | 2000-07-29 20:18:34 +0000 | [diff] [blame] | 36 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 37 | def test_write (self): |
| 38 | f = gzip.GzipFile(self.filename, 'wb') ; f.write(data1 * 50) |
Andrew M. Kuchling | 85ab738 | 2000-07-29 20:18:34 +0000 | [diff] [blame] | 39 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 40 | # Try flush and fileno. |
| 41 | f.flush() |
| 42 | f.fileno() |
| 43 | if hasattr(os, 'fsync'): |
| 44 | os.fsync(f.fileno()) |
| 45 | f.close() |
Andrew M. Kuchling | 85ab738 | 2000-07-29 20:18:34 +0000 | [diff] [blame] | 46 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 47 | def test_read(self): |
| 48 | self.test_write() |
| 49 | # Try reading. |
| 50 | f = gzip.GzipFile(self.filename, 'r') ; d = f.read() ; f.close() |
| 51 | self.assertEqual(d, data1*50) |
Andrew M. Kuchling | 85ab738 | 2000-07-29 20:18:34 +0000 | [diff] [blame] | 52 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 53 | def test_append(self): |
| 54 | self.test_write() |
| 55 | # Append to the previous file |
| 56 | f = gzip.GzipFile(self.filename, 'ab') ; f.write(data2 * 15) ; f.close() |
Andrew M. Kuchling | 85ab738 | 2000-07-29 20:18:34 +0000 | [diff] [blame] | 57 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 58 | f = gzip.GzipFile(self.filename, 'rb') ; d = f.read() ; f.close() |
| 59 | self.assertEqual(d, (data1*50) + (data2*15)) |
Andrew M. Kuchling | 85ab738 | 2000-07-29 20:18:34 +0000 | [diff] [blame] | 60 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 61 | def test_readline(self): |
| 62 | self.test_write() |
| 63 | # Try .readline() with varying line lengths |
Martin v. Löwis | 8cc965c | 2001-08-09 07:21:56 +0000 | [diff] [blame] | 64 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 65 | f = gzip.GzipFile(self.filename, 'rb') |
| 66 | line_length = 0 |
| 67 | while 1: |
| 68 | L = f.readline(line_length) |
| 69 | if L == "" and line_length != 0: break |
| 70 | self.assert_(len(L) <= line_length) |
| 71 | line_length = (line_length + 1) % 50 |
| 72 | f.close() |
Martin v. Löwis | 8cc965c | 2001-08-09 07:21:56 +0000 | [diff] [blame] | 73 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 74 | def test_readlines(self): |
| 75 | self.test_write() |
| 76 | # Try .readlines() |
Andrew M. Kuchling | 605ebdd | 1999-03-25 21:50:27 +0000 | [diff] [blame] | 77 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 78 | f = gzip.GzipFile(self.filename, 'rb') |
| 79 | L = f.readlines() |
| 80 | f.close() |
Skip Montanaro | 12424bc | 2002-05-23 01:43:05 +0000 | [diff] [blame] | 81 | |
Andrew M. Kuchling | a6f68e1 | 2005-06-09 14:12:36 +0000 | [diff] [blame^] | 82 | f = gzip.GzipFile(self.filename, 'rb') |
| 83 | while 1: |
| 84 | L = f.readlines(150) |
| 85 | if L == []: break |
| 86 | f.close() |
| 87 | |
| 88 | def test_seek_read(self): |
| 89 | self.test_write() |
| 90 | # Try seek, read test |
| 91 | |
| 92 | f = gzip.GzipFile(self.filename) |
| 93 | while 1: |
| 94 | oldpos = f.tell() |
| 95 | line1 = f.readline() |
| 96 | if not line1: break |
| 97 | newpos = f.tell() |
| 98 | f.seek(oldpos) # negative seek |
| 99 | if len(line1)>10: |
| 100 | amount = 10 |
| 101 | else: |
| 102 | amount = len(line1) |
| 103 | line2 = f.read(amount) |
| 104 | self.assertEqual(line1[:amount], line2) |
| 105 | f.seek(newpos) # positive seek |
| 106 | f.close() |
| 107 | |
| 108 | def test_seek_write(self): |
| 109 | # Try seek, write test |
| 110 | f = gzip.GzipFile(self.filename, 'w') |
| 111 | for pos in range(0, 256, 16): |
| 112 | f.seek(pos) |
| 113 | f.write('GZ\n') |
| 114 | f.close() |
| 115 | |
| 116 | def test_mode(self): |
| 117 | self.test_write() |
| 118 | f = gzip.GzipFile(self.filename, 'r') |
| 119 | self.assertEqual(f.myfileobj.mode, 'rb') |
| 120 | f.close() |
| 121 | |
| 122 | def test_main(verbose=None): |
| 123 | test_support.run_unittest(TestGzip) |
| 124 | |
| 125 | if __name__ == "__main__": |
| 126 | test_main(verbose=True) |