Hi Sergey, thank you for the patch, LGTM, just minor corrections in comments
behaviout → behaviour
automagically → automaically

  
>Вторник, 24 марта 2020, 11:01 +03:00 от Sergey Bronnikov <sergeyb@tarantool.org>:
> 
>In case of test failure test-run.py create a file .reject with actual
>test output and one need to move .reject file to .result manually when
>test has a valid behaviout. With option --update-ref-output test-run.py
>will do it automagically.
>
>Fixes: #4654
>
>GitHub branch:  https://github.com/tarantool/test-run/tree/ligurio/gh-4654-update-ref-output
>
>---
> lib/options.py | 8 ++++++++
> lib/test.py | 19 +++++++++++++++----
> 2 files changed, 23 insertions(+), 4 deletions(-)
>
>diff --git a/lib/options.py b/lib/options.py
>index 8bacb4a..174a62f 100644
>--- a/lib/options.py
>+++ b/lib/options.py
>@@ -201,6 +201,14 @@ class Options:
>                 help="""Run the server under 'luacov'.
>                 Default: false.""")
> 
>+ parser.add_argument(
>+ "--update-ref-output",
>+ dest="update_reference_output",
>+ action="store_true",
>+ default=False,
>+ help="""Update file with reference output (.reject) in case of fail
>+ and set status pass. Default: false.""")
>+
>         # XXX: We can use parser.parse_intermixed_args() on
>         # Python 3.7 to understand commands like
>         # ./test-run.py foo --exclude bar baz
>diff --git a/lib/test.py b/lib/test.py
>index 3e93af3..396bb89 100644
>--- a/lib/test.py
>+++ b/lib/test.py
>@@ -15,6 +15,7 @@ except ImportError:
>     from StringIO import StringIO
> 
> import lib
>+from lib.options import Options
> from lib.colorer import color_stdout
> from lib.utils import non_empty_valgrind_logs
> from lib.utils import print_tail_n
>@@ -242,23 +243,33 @@ class Test(object):
>             color_stdout("[ new ]\n", schema='test_new')
>         else:
>             has_result = os.path.exists(self.tmp_result)
>+ update_reference = lib.Options().args.update_reference_output
>             if has_result:
>- shutil.copy(self.tmp_result, self.reject)
>- short_status = 'fail'
>+ if update_reference:
>+ reject_dest = self.result
>+ else:
>+ reject_dest = self.reject
>+ shutil.copy(self.tmp_result, reject_dest)
>+ if update_reference:
>+ short_status = 'pass'
>+ else:
>+ short_status = 'fail'
>             color_stdout("[ fail ]\n", schema='test_fail')
> 
>             where = ""
>             if not self.is_crash_reported and not has_result:
>                 color_stdout('\nCannot open %s\n' % self.tmp_result,
>                              schema='error')
>- elif not self.is_crash_reported and not self.is_executed_ok:
>+ elif not self.is_crash_reported and not self.is_executed_ok and \
>+ not update_reference:
>                 self.print_diagnostics(self.reject,
>                                        "Test failed! Output from reject file "
>                                        "{0}:\n".format(self.reject))
>                 server.print_log(15)
>                 where = ": test execution aborted, reason " \
>                         "'{0}'".format(diagnostics)
>- elif not self.is_crash_reported and not self.is_equal_result:
>+ elif not self.is_crash_reported and not self.is_equal_result and \
>+ not update_reference:
>                 self.print_unidiff()
>                 server.print_log(15)
>                 where = ": wrong test output"
>--
>2.23.0
>
>
>--
>sergeyb@ 
 
 
--
Alexander Tikhonov