Re: [PATCH 2/4] tests/avocado: replay_linux.py add replay-dump.py test

[Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru>]

On 14.08.2023 19:31, Nicholas Piggin wrote:
> This runs replay-dump.py after recording a trace, and fails the test if
> the script fails.
> 
> replay-dump.py is modified to exit with non-zero if an error is
> encountered while parsing.

I would like to have separate test for replay-dump, because
replay-linux tests are very heavy to replay and knowing the exact
reason of the failure in advance would be more convenient.

What do you think of splitting the test?

> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
> It's possible this could introduce failures to existing test if an
> unimplemented event gets recorded. I would make a new test for this but
> it takes quite a while to record such a long trace that includes some
> block and net events to excercise the script.
> 
> Thanks,
> Nick
> 
>   scripts/replay-dump.py        |  6 ++++--
>   tests/avocado/replay_linux.py | 16 +++++++++++++++-
>   2 files changed, 19 insertions(+), 3 deletions(-)
> 
> diff --git a/scripts/replay-dump.py b/scripts/replay-dump.py
> index 937ae19ff1..8f4715632a 100755
> --- a/scripts/replay-dump.py
> +++ b/scripts/replay-dump.py
> @@ -21,6 +21,7 @@
>   import argparse
>   import struct
>   import os
> +import sys
>   from collections import namedtuple
>   
>   # This mirrors some of the global replay state which some of the
> @@ -97,7 +98,7 @@ def call_decode(table, index, dumpfile):
>           print("Could not decode index: %d" % (index))
>           print("Entry is: %s" % (decoder))
>           print("Decode Table is:\n%s" % (table))
> -        return False
> +        sys.exit(1)
>       else:
>           return decoder.fn(decoder.eid, decoder.name, dumpfile)
>   
> @@ -118,7 +119,7 @@ def print_event(eid, name, string=None, event_count=None):
>   def decode_unimp(eid, name, _unused_dumpfile):
>       "Unimplimented decoder, will trigger exit"
>       print("%s not handled - will now stop" % (name))
> -    return False
> +    sys.exit(1)
>   
>   # Checkpoint decoder
>   def swallow_async_qword(eid, name, dumpfile):
> @@ -401,3 +402,4 @@ def decode_file(filename):
>   if __name__ == "__main__":
>       args = parse_arguments()
>       decode_file(args.file)
> +    sys.exit(0)
> diff --git a/tests/avocado/replay_linux.py b/tests/avocado/replay_linux.py
> index a76dd507fc..12937ce0ec 100644
> --- a/tests/avocado/replay_linux.py
> +++ b/tests/avocado/replay_linux.py
> @@ -11,6 +11,7 @@
>   import os
>   import logging
>   import time
> +import subprocess
>   
>   from avocado import skipUnless
>   from avocado_qemu import BUILD_DIR
> @@ -21,6 +22,11 @@
>   from avocado.utils.path import find_command
>   from avocado_qemu import LinuxTest
>   
> +from pathlib import Path
> +
> +self_dir = Path(__file__).parent
> +src_dir = self_dir.parent.parent
> +
>   class ReplayLinux(LinuxTest):
>       """
>       Boots a Linux system, checking for a successful initialization
> @@ -94,7 +100,7 @@ def launch_and_wait(self, record, args, shift):
>           else:
>               vm.event_wait('SHUTDOWN', self.timeout)
>               vm.shutdown(True)
> -            logger.info('successfully fihished the replay')
> +            logger.info('successfully finished the replay')
>           elapsed = time.time() - start_time
>           logger.info('elapsed time %.2f sec' % elapsed)
>           return elapsed
> @@ -105,6 +111,14 @@ def run_rr(self, args=None, shift=7):
>           logger = logging.getLogger('replay')
>           logger.info('replay overhead {:.2%}'.format(t2 / t1 - 1))
>   
> +        try:
> +            replay_path = os.path.join(self.workdir, 'replay.bin')
> +            subprocess.check_call(["./scripts/replay-dump.py",
> +                                   "-f", replay_path],
> +                                  cwd=src_dir, stdout=subprocess.DEVNULL)
> +        except subprocess.CalledProcessError:
> +            self.fail('replay-dump.py failed')
> +
>   @skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
>   class ReplayLinuxX8664(ReplayLinux):
>       """