Commit Graph

12 Commits

Author SHA1 Message Date
Kevin Wolf
2f3c1fd396 iotests: Replace deprecated ConfigParser.readfp()
iotest 277 fails on Fedora 33 (Python 3.9) because a deprecation warning
changes the output:

    nbd-fault-injector.py:230: DeprecationWarning: This method will be
    removed in future versions.  Use 'parser.read_file()' instead.

In fact, readfp() has already been deprecated in Python 3.2 and the
replacement has existed since the same version, so we can now
unconditionally switch to read_file().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201113100602.15936-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2020-11-16 14:51:12 -06:00
John Snow
2d110c1149 python: remove more instances of sys.version_info
We guarantee 3.5+ everywhere; remove more dead checks. In general, try
to avoid using version checks and instead prefer to attempt behavior
when possible.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200514035230.25756-1-jsnow@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 18:25:07 +02:00
Paolo Bonzini
423edd9a31 drop "from __future__ import print_function"
This is only needed for Python 2, which we do not support anymore.

Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200204160604.19883-1-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-07 15:15:16 +01:00
Philippe Mathieu-Daudé
903cb1bf39 tests/qemu-iotests: Explicit usage of Python 3 (scripts with __main__)
Use the program search path to find the Python 3 interpreter.

Patch created mechanically by running:

  $ sed -i "s,^#\!/usr/bin/\(env\ \)\?python$,#\!/usr/bin/env python3," \
       $(git grep -l 'if __name__.*__main__')

Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200130163232.10446-4-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-07 15:12:48 +01:00
Andrey Shinkevich
a4d925f8f0 iotests: Test NBD client reconnection
The test for an NBD client. The NBD server is disconnected after the
client write request. The NBD client should reconnect and complete
the write operation.

Suggested-by: Denis V. Lunev <den@openvz.org>
Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Message-Id: <1573529976-815699-1-git-send-email-andrey.shinkevich@virtuozzo.com>
2019-11-18 16:01:31 -06:00
Max Reitz
2d894bee1c iotests: Modify imports for Python 3
There are two imports that need to be modified when running the iotests
under Python 3: One is StringIO, which no longer exists; instead, the
StringIO class comes from the io module, so import it from there (and
use the BytesIO class for Python 2).  The other is the ConfigParser,
which has just been renamed to configparser.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20181022135307.14398-9-mreitz@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-10-30 21:13:54 -03:00
Max Reitz
8eb5e6746f iotests: Use Python byte strings where appropriate
Since byte strings are no longer the default in Python 3, we have to
explicitly use them where we need to, which is mostly when working with
structures.  It also means that we need to open a file in binary mode
when we want to use structures.

On the other hand, we have to accomodate for the fact that some
functions (still) work with byte strings but we want to use unicode
strings (in Python 3 at least, and it does not matter in Python 2).
This includes base64 encoding, but it is most notable when working with
the subprocess module: Either we set universal_newlines to True so that
the default streams are opened in text mode (hence this parameter is
aliased as "text" as of 3.7), or, if that is not possible, we have to
decode the output to a normal string.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20181022135307.14398-4-mreitz@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-10-30 21:11:52 -03:00
Max Reitz
6d39db96d2 iotests: Make nbd-fault-injector flush
When closing a connection, make the nbd-fault-injector flush the socket.
Without this, the output is a bit unreliable with Python 3.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20181022135307.14398-2-mreitz@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-10-30 21:11:52 -03:00
Eduardo Habkost
f03868bd56 python: futurize -f libfuturize.fixes.fix_print_with_import
Change all Python code to use print as a function.

This is necessary for Python 3 compatibility.

Done using:

  $ py=$( (g grep -l -E '^#!.*python';find -name '*.py' -printf '%P\n';) | \
    sort -u | grep -v README.sh4)
  $ futurize -w -f libfuturize.fixes.fix_print_with_import $py

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180608122952.2009-2-ehabkost@redhat.com>
[ehabkost: fixup tests/docker/docker.py]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-06-08 14:39:24 -03:00
Vladimir Sementsov-Ogievskiy
7b3158f951 nbd: rename some simple-request related objects to be _simple_
To be consistent when their _structured_ analogs will be introduced.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171012095319.136610-4-vsementsov@virtuozzo.com>
[eblake: also tweak trace message contents]
Signed-off-by: Eric Blake <eblake@redhat.com>
2017-10-12 16:27:34 -05:00
Stefan Hajnoczi
6e592fc922 qemu-iotests: improve nbd-fault-injector.py startup protocol
Currently 083 waits for the nbd-fault-injector.py server to start up by
looping until netstat shows the TCP listen socket.

The startup protocol can be simplified by passing a 0 port number to
nbd-fault-injector.py.  The kernel will allocate a port in bind(2) and
the final port number can be printed by nbd-fault-injector.py.

This should make it slightly nicer and less TCP-specific to wait for
server startup.  This patch changes nbd-fault-injector.py, the next one
will rewrite server startup in 083.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20170829122745.14309-3-stefanha@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2017-08-30 13:00:37 -05:00
Stefan Hajnoczi
1e8ece0db3 tests: add nbd-fault-injector.py utility
The nbd-fault-injector.py script is a special kind of NBD server.  It
throws away all writes and produces zeroes for reads.  Given a list of
fault injection rules, it can simulate NBD protocol errors and is useful
for testing NBD client error handling code paths.

See the patch for documentation.  This scripts is modelled after Kevin
Wolf <kwolf@redhat.com>'s blkdebug block driver.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-03-14 16:28:28 +01:00