WARN: No output files in "./pabot_results"

[Robert]

macOS Sierra
Python 2.7.12
robotframework==3.0.2
robotframework-pabot==0.36
robotremoteserver==1.1rc2

I modified _merge_one_run() in pabot/pabot.py to show why I am getting the error (see below). Could you please help what need to be done to resolve this issue?

Note:

1. It is run in a virtualenv
2. There is no output.xml in ./pabot_results/Testsuites.Transit.Transit\ Tigris;
3. The stderr.txt and stdout.txt have 0 byte.
4. Here is the output of the 'ls' from a shell window. All files are there with non-zero byte.
   $ ls -l ./pabot_results/Testsuites.Transit.Transit\ Tigris
   total 48
   -rw-r--r-- 1 robertwong staff 14066 Jun 27 12:58 output.xml
   -rw-r--r-- 1 robertwong staff 1962 Jun 27 12:58 stderr.txt
   -rw-r--r-- 1 robertwong staff 1494 Jun 27 12:58 stdout.txt

def _merge_one_run(outs_dir, options, tests_root_name, outputfile='output.xml'):
output_path = os.path.abspath(os.path.join(
options.get('outputdir', '.'),
options.get('output', outputfile)))
files = sorted(glob(os.path.join(_glob_escape(outs_dir), '**/*.xml')))
##### START DEBUG PRINT #####
print('outs_dir: {}, files: {}'.format(outs_dir, files))
os.system("ls -lR " + outs_dir)
##### END DEBUG PRINT #####
if not files:
_write('WARN: No output files in "%s"' % outs_dir, Color.YELLOW)
return ""
merge(files, options, tests_root_name).save(output_path)
return output_path

Console log:
<type 'exceptions.TypeError'>
outs_dir: ./pabot_results, files: []
total 32
drwxr-xr-x 4 robertwong staff 136 Jun 27 12:58 Testsuites.Transit.Transit Tigris
-rw-r--r-- 1 robertwong staff 12869 Jun 27 12:58 suite_names.xml

./pabot_results/Testsuites.Transit.Transit Tigris:
total 0
-rw-r--r-- 1 robertwong staff 0 Jun 27 12:58 stderr.txt
-rw-r--r-- 1 robertwong staff 0 Jun 27 12:58 stdout.txt
WARN: No output files in "./pabot_results"
Output:
[ ERROR ] Reading XML source '' failed: No such file or directory

[Kevin O.]

Try running with the --verbose argument.

It seems like whatever pabot is launching, it is returning 0 (success) yet not outputting to stdout or stderr.

Whatever the exact command you see with verbose output enabled, try running whatever pybot is running from the command line.

[Robert]

Here is the console log with --verbose. Still can't figure out what is going on. Your help is greatly appreciated.

╰─$ pabot --version                                                                                                                                                                     127 ↵

A parallel executor for Robot Framework test cases.

Version 0.36.

Supports all Robot Framework command line options and also following

options (these must be before normal RF options):

--verbose

  more output

--command [ACTUAL COMMANDS TO START ROBOT EXECUTOR] --end-command

  RF script for situations where pybot is not used directly

--processes [NUMBER OF PROCESSES]

  How many parallel executors to use (default max of 2 and cpu count)

--resourcefile [FILEPATH]

  Indicator for a file that can contain shared variables for

  distributing resources.

--pabotlib

  Start PabotLib remote server. This enables locking and resource

  distribution between parallel test executions.

--pabotlibhost [HOSTNAME]

  Host name of the PabotLib remote server (default is 127.0.0.1)

--pabotlibport [PORT]

  Port number of the PabotLib remote server (default is 8270)

--suitesfrom [FILEPATH TO OUTPUTXML]

  Optionally read suites from output.xml file. Failed suites will run

  first and longer running ones will be executed before shorter ones.

--argumentfile[INTEGER] [FILEPATH]

  Run same suite with multiple argumentfile options.

  For example "--argumentfile1 arg1.txt --argumentfile2 arg2.txt".

Copyright 2016 Mikko Korpela - Apache 2 License

Robot Framework 3.0.2 (Python 2.7.12 on darwin)

Elapsed time: 0 minutes 0.11 seconds

(.virtualenv) ╭─robertwong@Roberts-MacBook-Pro-8  ~/githome/jana-qa  ‹master*›

╰─$ robot --version

Robot Framework 3.0.2 (Python 2.7.12 on darwin)

(.virtualenv) ╭─robertwong@Roberts-MacBook-Pro-8  ~/githome/jana-qa  ‹master*›

╰─$ pabot --verbose --processes 8 --variable ENV:qa1 --variable TILESET_VERSION:11089398 --variable KH_TILESET_VERSION:${EMPTY} --include rdar18352597 /Users/robertwong/githome/jana-qa/.virtualenv/lib/python2.7/site-packages/jana_qa-1.3.14-py2.7.egg/janaqa/jana_tests/testsuites

<type 'exceptions.TypeError'>

WARN: No output files in "./pabot_results"

Output:

[ ERROR ] Reading XML source '' failed: No such file or directory

Try --help for usage information.

Elapsed time: 0 minutes 0.845 seconds

(.virtualenv) ╭─robertwong@Roberts-MacBook-Pro-8  ~/githome/jana-qa  ‹master*›

╰─$ ls -R ./pabot_results                                                                                                                                                               252 ↵

Testsuites.Localization.Poi Tigris/ suite_names.xml

./pabot_results/Testsuites.Localization.Poi Tigris:

output.xml stderr.txt stdout.txt

(.virtualenv) ╭─robertwong@Roberts-MacBook-Pro-8  ~/githome/jana-qa  ‹master*›

╰─$ ls -lR ./pabot_results

total 32

drwxr-xr-x  5 robertwong  staff    170 Jun 28 15:42 Testsuites.Localization.Poi Tigris/

-rw-r--r--  1 robertwong  staff  12861 Jun 28 15:42 suite_names.xml

./pabot_results/Testsuites.Localization.Poi Tigris:

total 40

-rw-r--r--  1 robertwong  staff  12267 Jun 28 15:43 output.xml

-rw-r--r--  1 robertwong  staff   3597 Jun 28 15:43 stderr.txt

-rw-r--r--  1 robertwong  staff   1549 Jun 28 15:43 stdout.txt

[Tatu Aalto]

Ugh

I think using Robot Framework variables from command line does not work. If you replace ${EMPTY} with real value, then it should work fine.

-Tatu
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[Robert]

The ${EMPTY} is not the issue. I finally tracked down to an internal package that interferes with the pabot operations. In this internal package, it imports monkey from gevent and executes monkey.patch_all(thread=False, select=False). I still have no idea how to resolve this but there is a workaround by simply comment out the execution of patch_all().

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[Swapnil Shankar]

@Robert....did u find a solution to this? I have a similar issue.

Thanks,

Swapnil