[Patches] [Patch #100511] test largefile support (test_largefile.py)

noreply@sourceforge.net noreply@sourceforge.net
Fri, 11 Aug 2000 12:04:13 -0700


Patch #100511 has been updated. 

Project: 
Category: library
Status: Closed
Summary: test largefile support (test_largefile.py)

Follow-Ups:

Date: 2000-Jun-06 19:58
By: tmick

Comment:
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Date: 2000-Jun-06 19:58
By: tmick

Comment:
This patch adds a test for largefiles (creating, seeking, telling, etc.).
The test skips if there is no largefile support.

There is one further problem. The test basically involves creating a file
greater than 2GB and playing with it. On UN*X systems with sparse files this
is no problem. On Win64 (which I have heard *can* do sparse files, but not in
Python yet), however, >2GB space and a *long* time is required to run the
test. I don't think it is reasonable to turn this on by default... so here is
what I did.

I extended regrtest.py to accept the --have-resources switch. This sets
test_support.use_large_resources, which is checked in test_largefile.py.
By default 'use_large_resources' is false. On Win64, then, by default the
largefile test is skipped but can be run via the --have-resources switch to
regrtest.py or by running the test directly. This seems to me the Right
Thing.

The affected files are:
 Lib/test/regrtest.py
 Lib/test/test_support.py
 Lib/test/test_largefile.py (new)
 Lib/test/output/test_largefile (new)

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Date: 2000-Jun-29 17:13
By: tim_one

Comment:
Fred, can you test this on a Linux with > 2Gb files (needs the --have-resources switch; read Trent's comment), or pass it on to someone who can?  I can't do more than stare at this, and nothing in my staring hit my eye.  Well, Guido may hate the long option name (--have-resources), especially given that even with all those letters <wink>, it's not really self-describing.
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Date: 2000-Jun-30 08:08
By: tmick

Comment:
--have-at-least-2GB-on-hard-drive-and-am-going-for-coffee-<wink>
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Date: 2000-Jul-09 23:37
By: tim_one

Comment:
Fred, do something with this or assign it to some other Unix geek?
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Date: 2000-Jul-13 17:23
By: fdrake

Comment:
Looks good to me, and properly skips the large file test on my Linux box.  A second iteration may be useful to provide separate options for different resources (cpu/disk/ram), but it's not clearly needed at this time.

Accepted as-is.
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Date: 2000-Jul-31 08:03
By: gvanrossum

Comment:
This was accepted ages agon -- what are you waiting for?
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Date: 2000-Aug-11 12:04
By: tmick

Comment:
Sorry about the delay.
Had to make some small changes to get the old patch to apply.
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