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authorChristian Heimes <christian@cheimes.de>2008-02-09 02:18:51 +0000
committerChristian Heimes <christian@cheimes.de>2008-02-09 02:18:51 +0000
commit6a100982424c8d4d40b784fba437800ad9e9509d (patch)
tree749bf2bf5b4e817713245792e38e8bf5e0fad6ef /Lib/test/test_largefile.py
parent880b8c63bec006d0b2df5deaba320dc0093bd15e (diff)
downloadcpython-6a100982424c8d4d40b784fba437800ad9e9509d.tar.gz
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617-60678 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk ........ r60618 | walter.doerwald | 2008-02-06 15:31:55 +0100 (Wed, 06 Feb 2008) | 6 lines Remove month parameter from Calendar.yeardatescalendar(), Calendar.yeardays2calendar() and Calendar.yeardayscalendar() as the methods don't have such a parameter. Fixes issue #2017. Rewrap content to 80 chars. ........ r60622 | facundo.batista | 2008-02-06 20:28:49 +0100 (Wed, 06 Feb 2008) | 4 lines Fixes issue 1959. Converted tests to unittest. Thanks Giampaolo Rodola. ........ r60626 | thomas.heller | 2008-02-06 21:29:17 +0100 (Wed, 06 Feb 2008) | 3 lines Fixed refcounts and error handling. Should not be merged to py3k branch. ........ r60630 | mark.dickinson | 2008-02-06 23:10:50 +0100 (Wed, 06 Feb 2008) | 4 lines Issue 1979: Make Decimal comparisons (other than !=, ==) involving NaN raise InvalidOperation (and return False if InvalidOperation is trapped). ........ r60632 | mark.dickinson | 2008-02-06 23:25:16 +0100 (Wed, 06 Feb 2008) | 2 lines Remove incorrect usage of :const: in documentation. ........ r60634 | georg.brandl | 2008-02-07 00:45:51 +0100 (Thu, 07 Feb 2008) | 2 lines Revert accidental changes to test_queue in r60605. ........ r60636 | raymond.hettinger | 2008-02-07 01:54:20 +0100 (Thu, 07 Feb 2008) | 1 line Issue 2025: Add tuple.count() and tuple.index() to follow the ABC in collections.Sequence. ........ r60637 | mark.dickinson | 2008-02-07 02:14:23 +0100 (Thu, 07 Feb 2008) | 2 lines Fix broken link in decimal documentation. ........ r60638 | mark.dickinson | 2008-02-07 02:42:06 +0100 (Thu, 07 Feb 2008) | 3 lines IEEE 754 should be IEEE 854; give precise reference for comparisons involving NaNs. ........ r60639 | raymond.hettinger | 2008-02-07 03:12:52 +0100 (Thu, 07 Feb 2008) | 1 line Return ints instead of longs for tuple.count() and tuple.index(). ........ r60640 | raymond.hettinger | 2008-02-07 04:10:33 +0100 (Thu, 07 Feb 2008) | 1 line Merge 60627. ........ r60641 | raymond.hettinger | 2008-02-07 04:25:46 +0100 (Thu, 07 Feb 2008) | 1 line Merge r60628, r60631, and r60633. Register UserList and UserString will the appropriate ABCs. ........ r60642 | brett.cannon | 2008-02-07 08:47:31 +0100 (Thu, 07 Feb 2008) | 3 lines Cast a struct to a void pointer so as to do a type-safe pointer comparison (mistmatch found by clang). ........ r60643 | brett.cannon | 2008-02-07 09:04:07 +0100 (Thu, 07 Feb 2008) | 2 lines Remove unnecessary curly braces around an int literal. ........ r60644 | andrew.kuchling | 2008-02-07 12:43:47 +0100 (Thu, 07 Feb 2008) | 1 line Update URL ........ r60645 | facundo.batista | 2008-02-07 17:16:29 +0100 (Thu, 07 Feb 2008) | 4 lines Fixes issue 2026. Tests converted to unittest. Thanks Giampaolo Rodola. ........ r60646 | christian.heimes | 2008-02-07 18:15:30 +0100 (Thu, 07 Feb 2008) | 1 line Added some statistics code to dict and list object code. I wanted to test how a larger freelist affects the reusage of freed objects. Contrary to my gut feelings 80 objects is more than fine for small apps. I haven't profiled a large app yet. ........ r60648 | facundo.batista | 2008-02-07 20:06:52 +0100 (Thu, 07 Feb 2008) | 6 lines Fixes Issue 1401. When redirected, a possible POST get converted to GET, so it loses its payload. So, it also must lose the headers related to the payload (if it has no content any more, it shouldn't indicate content length and type). ........ r60649 | walter.doerwald | 2008-02-07 20:30:22 +0100 (Thu, 07 Feb 2008) | 3 lines Clarify that the output of TextCalendar.formatmonth() and TextCalendar.formatyear() for custom instances won't be influenced by calls to the module global setfirstweekday() function. Fixes #2018. ........ r60651 | walter.doerwald | 2008-02-07 20:48:34 +0100 (Thu, 07 Feb 2008) | 3 lines Fix documentation for Calendar.iterweekdays(): firstweekday is a property. Fixes second part of #2018. ........ r60653 | walter.doerwald | 2008-02-07 20:57:32 +0100 (Thu, 07 Feb 2008) | 2 lines Fix typo in docstring for Calendar.itermonthdays(). ........ r60655 | raymond.hettinger | 2008-02-07 21:04:37 +0100 (Thu, 07 Feb 2008) | 1 line The float conversion recipe is simpler in Py2.6 ........ r60657 | raymond.hettinger | 2008-02-07 21:10:49 +0100 (Thu, 07 Feb 2008) | 1 line Fix typo ........ r60660 | brett.cannon | 2008-02-07 23:27:10 +0100 (Thu, 07 Feb 2008) | 3 lines Make sure a switch statement does not have repetitive case statements. Error found through LLVM post-2.1 svn. ........ r60661 | christian.heimes | 2008-02-08 01:11:31 +0100 (Fri, 08 Feb 2008) | 1 line Deallocate content of the dict free list on interpreter shutdown ........ r60662 | christian.heimes | 2008-02-08 01:14:34 +0100 (Fri, 08 Feb 2008) | 1 line Use prefix decrement ........ r60663 | amaury.forgeotdarc | 2008-02-08 01:56:02 +0100 (Fri, 08 Feb 2008) | 5 lines issue 2045: Infinite recursion when printing a subclass of defaultdict, if default_factory is set to a bound method. Will backport. ........ r60667 | jeffrey.yasskin | 2008-02-08 07:45:40 +0100 (Fri, 08 Feb 2008) | 2 lines Oops! 2.6's Rational.__ne__ didn't work. ........ r60671 | hyeshik.chang | 2008-02-08 18:10:20 +0100 (Fri, 08 Feb 2008) | 2 lines Update big5hkscs codec to conform to the HKSCS:2004 revision. ........ r60673 | raymond.hettinger | 2008-02-08 23:30:04 +0100 (Fri, 08 Feb 2008) | 4 lines Remove unnecessary modulo division. The preceding test guarantees that 0 <= i < len. ........ r60674 | raymond.hettinger | 2008-02-09 00:02:27 +0100 (Sat, 09 Feb 2008) | 1 line Speed-up __iter__() mixin method. ........ r60675 | raymond.hettinger | 2008-02-09 00:34:21 +0100 (Sat, 09 Feb 2008) | 1 line Fill-in missing Set comparisons ........ r60677 | raymond.hettinger | 2008-02-09 00:57:06 +0100 (Sat, 09 Feb 2008) | 1 line Add advice on choosing between DictMixin and MutableMapping ........
Diffstat (limited to 'Lib/test/test_largefile.py')
-rw-r--r--Lib/test/test_largefile.py314
1 files changed, 160 insertions, 154 deletions
diff --git a/Lib/test/test_largefile.py b/Lib/test/test_largefile.py
index 6d2e27d16b..f7697d24f5 100644
--- a/Lib/test/test_largefile.py
+++ b/Lib/test/test_largefile.py
@@ -1,12 +1,12 @@
-#!python
+"""Test largefile support on system where this makes sense.
+"""
-#----------------------------------------------------------------------
-# test largefile support on system where this makes sense
-#
-#----------------------------------------------------------------------
-
-from test import test_support
-import os, stat, sys
+import os
+import stat
+import sys
+import unittest
+from test.test_support import run_unittest, TESTFN, verbose, requires, \
+ TestSkipped, unlink
try:
import signal
@@ -17,154 +17,160 @@ try:
except (ImportError, AttributeError):
pass
-
# create >2GB file (2GB = 2147483648 bytes)
size = 2500000000
-name = test_support.TESTFN
-
-
-# On Windows and Mac OSX this test comsumes large resources; It takes
-# a long time to build the >2GB file and takes >2GB of disk space
-# therefore the resource must be enabled to run this test. If not,
-# nothing after this line stanza will be executed.
-if sys.platform[:3] == 'win' or sys.platform == 'darwin':
- test_support.requires(
- 'largefile',
- 'test requires %s bytes and a long time to run' % str(size))
-else:
- # Only run if the current filesystem supports large files.
- # (Skip this test on Windows, since we now always support large files.)
- f = open(test_support.TESTFN, 'wb')
- try:
- # 2**31 == 2147483648
- f.seek(2147483649)
- # Seeking is not enough of a test: you must write and flush, too!
- f.write(b"x")
- f.flush()
- except (IOError, OverflowError):
- f.close()
- os.unlink(test_support.TESTFN)
- raise test_support.TestSkipped(
- "filesystem does not have largefile support")
- else:
- f.close()
-def expect(got_this, expect_this):
- if test_support.verbose:
- print('%r =?= %r ...' % (got_this, expect_this), end=' ')
- if got_this != expect_this:
- if test_support.verbose:
- print('no')
- raise test_support.TestFailed('got %r, but expected %r'
- % (got_this, expect_this))
+class TestCase(unittest.TestCase):
+ """Test that each file function works as expected for a large
+ (i.e. > 2GB, do we have to check > 4GB) files.
+ """
+
+ def test_seek(self):
+ if verbose:
+ print('create large file via seek (may be sparse file) ...')
+ f = open(TESTFN, 'wb')
+ try:
+ f.write('z')
+ f.seek(0)
+ f.seek(size)
+ f.write('a')
+ f.flush()
+ if verbose:
+ print('check file size with os.fstat')
+ self.assertEqual(os.fstat(f.fileno())[stat.ST_SIZE], size+1)
+ finally:
+ f.close()
+
+ def test_osstat(self):
+ if verbose:
+ print('check file size with os.stat')
+ self.assertEqual(os.stat(TESTFN)[stat.ST_SIZE], size+1)
+
+ def test_seek_read(self):
+ if verbose:
+ print('play around with seek() and read() with the built largefile')
+ f = open(TESTFN, 'rb')
+ try:
+ self.assertEqual(f.tell(), 0)
+ self.assertEqual(f.read(1), 'z')
+ self.assertEqual(f.tell(), 1)
+ f.seek(0)
+ self.assertEqual(f.tell(), 0)
+ f.seek(0, 0)
+ self.assertEqual(f.tell(), 0)
+ f.seek(42)
+ self.assertEqual(f.tell(), 42)
+ f.seek(42, 0)
+ self.assertEqual(f.tell(), 42)
+ f.seek(42, 1)
+ self.assertEqual(f.tell(), 84)
+ f.seek(0, 1)
+ self.assertEqual(f.tell(), 84)
+ f.seek(0, 2) # seek from the end
+ self.assertEqual(f.tell(), size + 1 + 0)
+ f.seek(-10, 2)
+ self.assertEqual(f.tell(), size + 1 - 10)
+ f.seek(-size-1, 2)
+ self.assertEqual(f.tell(), 0)
+ f.seek(size)
+ self.assertEqual(f.tell(), size)
+ # the 'a' that was written at the end of file above
+ self.assertEqual(f.read(1), 'a')
+ f.seek(-size-1, 1)
+ self.assertEqual(f.read(1), 'z')
+ self.assertEqual(f.tell(), 1)
+ finally:
+ f.close()
+
+ def test_lseek(self):
+ if verbose:
+ print('play around with os.lseek() with the built largefile')
+ f = open(TESTFN, 'rb')
+ try:
+ self.assertEqual(os.lseek(f.fileno(), 0, 0), 0)
+ self.assertEqual(os.lseek(f.fileno(), 42, 0), 42)
+ self.assertEqual(os.lseek(f.fileno(), 42, 1), 84)
+ self.assertEqual(os.lseek(f.fileno(), 0, 1), 84)
+ self.assertEqual(os.lseek(f.fileno(), 0, 2), size+1+0)
+ self.assertEqual(os.lseek(f.fileno(), -10, 2), size+1-10)
+ self.assertEqual(os.lseek(f.fileno(), -size-1, 2), 0)
+ self.assertEqual(os.lseek(f.fileno(), size, 0), size)
+ # the 'a' that was written at the end of file above
+ self.assertEqual(f.read(1), 'a')
+ finally:
+ f.close()
+
+ def test_truncate(self):
+ if verbose:
+ print('try truncate')
+ f = open(TESTFN, 'r+b')
+ # this is already decided before start running the test suite
+ # but we do it anyway for extra protection
+ if not hasattr(f, 'truncate'):
+ raise TestSkipped("open().truncate() not available on this system")
+ try:
+ f.seek(0, 2)
+ # else we've lost track of the true size
+ self.assertEqual(f.tell(), size+1)
+ # Cut it back via seek + truncate with no argument.
+ newsize = size - 10
+ f.seek(newsize)
+ f.truncate()
+ self.assertEqual(f.tell(), newsize) # else pointer moved
+ f.seek(0, 2)
+ self.assertEqual(f.tell(), newsize) # else wasn't truncated
+ # Ensure that truncate(smaller than true size) shrinks
+ # the file.
+ newsize -= 1
+ f.seek(42)
+ f.truncate(newsize)
+ self.assertEqual(f.tell(), 42) # else pointer moved
+ f.seek(0, 2)
+ self.assertEqual(f.tell(), newsize) # else wasn't truncated
+ # XXX truncate(larger than true size) is ill-defined
+ # across platform; cut it waaaaay back
+ f.seek(0)
+ f.truncate(1)
+ self.assertEqual(f.tell(), 0) # else pointer moved
+ self.assertEqual(len(f.read()), 1) # else wasn't truncated
+ finally:
+ f.close()
+
+def main_test():
+ # On Windows and Mac OSX this test comsumes large resources; It
+ # takes a long time to build the >2GB file and takes >2GB of disk
+ # space therefore the resource must be enabled to run this test.
+ # If not, nothing after this line stanza will be executed.
+ if sys.platform[:3] == 'win' or sys.platform == 'darwin':
+ requires('largefile',
+ 'test requires %s bytes and a long time to run' % str(size))
else:
- if test_support.verbose:
- print('yes')
-
-
-# test that each file function works as expected for a large (i.e. >2GB, do
-# we have to check >4GB) files
-
-if test_support.verbose:
- print('create large file via seek (may be sparse file) ...')
-f = open(name, 'wb')
-try:
- f.write(b'z')
- f.seek(0)
- f.seek(size)
- f.write(b'a')
- f.flush()
- if test_support.verbose:
- print('check file size with os.fstat')
- expect(os.fstat(f.fileno())[stat.ST_SIZE], size+1)
-finally:
- f.close()
-if test_support.verbose:
- print('check file size with os.stat')
-expect(os.stat(name)[stat.ST_SIZE], size+1)
-
-if test_support.verbose:
- print('play around with seek() and read() with the built largefile')
-f = open(name, 'rb')
-try:
- expect(f.tell(), 0)
- expect(f.read(1), b'z')
- expect(f.tell(), 1)
- f.seek(0)
- expect(f.tell(), 0)
- f.seek(0, 0)
- expect(f.tell(), 0)
- f.seek(42)
- expect(f.tell(), 42)
- f.seek(42, 0)
- expect(f.tell(), 42)
- f.seek(42, 1)
- expect(f.tell(), 84)
- f.seek(0, 1)
- expect(f.tell(), 84)
- f.seek(0, 2) # seek from the end
- expect(f.tell(), size + 1 + 0)
- f.seek(-10, 2)
- expect(f.tell(), size + 1 - 10)
- f.seek(-size-1, 2)
- expect(f.tell(), 0)
- f.seek(size)
- expect(f.tell(), size)
- expect(f.read(1), b'a') # the 'a' that was written at the end of file above
- f.seek(-size-1, 1)
- expect(f.read(1), b'z')
- expect(f.tell(), 1)
-finally:
- f.close()
-
-if test_support.verbose:
- print('play around with os.lseek() with the built largefile')
-f = open(name, 'rb')
-try:
- expect(os.lseek(f.fileno(), 0, 0), 0)
- expect(os.lseek(f.fileno(), 42, 0), 42)
- expect(os.lseek(f.fileno(), 42, 1), 84)
- expect(os.lseek(f.fileno(), 0, 1), 84)
- expect(os.lseek(f.fileno(), 0, 2), size+1+0)
- expect(os.lseek(f.fileno(), -10, 2), size+1-10)
- expect(os.lseek(f.fileno(), -size-1, 2), 0)
- expect(os.lseek(f.fileno(), size, 0), size)
- expect(f.read(1), b'a') # the 'a' that was written at the end of file above
-finally:
- f.close()
-
-if hasattr(f, 'truncate'):
- if test_support.verbose:
- print('try truncate')
- f = open(name, 'r+b')
- try:
- f.seek(0, 2)
- expect(f.tell(), size+1) # else we've lost track of the true size
- # Cut it back via seek + truncate with no argument.
- newsize = size - 10
- f.seek(newsize)
- f.truncate()
- expect(f.tell(), newsize) # else pointer moved
- f.seek(0, 2)
- expect(f.tell(), newsize) # else wasn't truncated
- # Ensure that truncate(smaller than true size) shrinks the file.
- newsize -= 1
- f.seek(42)
- f.truncate(newsize)
- expect(f.tell(), 42) # else pointer moved
- f.seek(0, 2)
- expect(f.tell(), newsize) # else wasn't truncated
-
- # XXX truncate(larger than true size) is ill-defined across platforms
-
- # cut it waaaaay back
- f.seek(0)
- f.truncate(1)
- expect(f.tell(), 0) # else pointer moved
- expect(len(f.read()), 1) # else wasn't truncated
-
- finally:
- f.close()
-
-os.unlink(name)
+ # Only run if the current filesystem supports large files.
+ # (Skip this test on Windows, since we now always support
+ # large files.)
+ f = open(TESTFN, 'wb')
+ try:
+ # 2**31 == 2147483648
+ f.seek(2147483649)
+ # Seeking is not enough of a test: you must write and
+ # flush, too!
+ f.write("x")
+ f.flush()
+ except (IOError, OverflowError):
+ f.close()
+ unlink(TESTFN)
+ raise TestSkipped("filesystem does not have largefile support")
+ else:
+ f.close()
+ suite = unittest.TestSuite()
+ suite.addTest(TestCase('test_seek'))
+ suite.addTest(TestCase('test_osstat'))
+ suite.addTest(TestCase('test_seek_read'))
+ suite.addTest(TestCase('test_lseek'))
+ f = open(TESTFN, 'w')
+ if hasattr(f, 'truncate'):
+ suite.addTest(TestCase('test_truncate'))
+
+if __name__ == '__main__':
+ main_test()