tag: tip
parent: 100742:ebae81b31cf6
user: Victor Stinner <victor.stinner@gmail.com>
date: Fri Mar 25 15:03:34 2016 +0100
files: Lib/test/test_os.py
description:
test_os: Win32ErrorTests checks if file exists
Don't use os.path.exists() since it ignores *any* OSError.
* add create_file() helper function
* create files using "x" mode instead of "w" to detect when a previous test
forget to remove a file
* open file for writing in unbuferred mode (buffering=0)
* replace "try/finally: unlink" with self.addCleanup(support.unlink)
* register unlink cleanup function *before* creating new files
This changes the main documentation, doc strings, source code comments, and a
couple error messages in the test suite. In some cases the word was removed
or edited some other way to fix the grammar.
function instead of the getentropy() function. The getentropy() function is
blocking to generate very good quality entropy, os.urandom() doesn't need such
high-quality entropy.
* Don't use the timestamp of an existing file anymore, only use fixed
timestamp
* Enhance the code checking the resolution of the filesystem timestamps.
* Check timestamps with a resolution of 1 microsecond instead of 1 millisecond
* When os.utime() uses the current system clock, tolerate a delta of 20 ms.
Before some os.utime() tolerated a different of 10 seconds.
* Merge duplicated tests and simplify the code
* Don't use the timestamp of an existing file anymore, only use fixed
timestamp
* Enhance the code checking the resolution of the filesystem timestamps.
* Check timestamps with a resolution of 1 microsecond instead of 1 millisecond
* When os.utime() uses the current system clock, tolerate a delta of 20 ms.
Before some os.utime() tolerated a different of 10 seconds.
* Merge duplicated tests and simplify the code
* Don't use the timestamp of an existing file anymore, only use fixed
timestamp
* Enhance the code checking the resolution of the filesystem timestamps.
* Check timestamps with a resolution of 1 microsecond instead of 1 millisecond
* When os.utime() uses the current system clock, tolerate a delta of 20 ms.
Before some os.utime() tolerated a different of 10 seconds.
* Merge duplicated tests and simplify the code
