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Maniphest T128990

English Wikisource has more good pages than French Wikisource, breaking the WikiStats tests for the largest wikisource
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Description

According to https://meta.wikimedia.org/wiki/Wikisource , French Wikisource still has more pages , but English Wikisource has more 'good' pages. need to check which algorithm change broke this test

FAIL: test_sort (tests.wikistats_tests.WikiStatsTestCase)
Test sorted results.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests/wikistats_tests.py", line 35, in test_sort
    self.assertEqual(ws.languages_by_size('wikisource')[0], 'fr')
AssertionError: u'en' != u'fr'
- en
+ fr

Details

Related Changes in Gerrit:
SubjectRepoBranchLines +/-
[bugfix] Additional wikistats testspywikibot/coremaster+32 -6
Expand wikistats datatype testspywikibot/coremaster+17 -1
Customize query in gerrit

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Event Timeline

jayvdb created this task.Mar 6 2016, 1:07 AM
Restricted Application added subscribers: pywikibot-bugs-list, Aklapper. · View Herald TranscriptMar 6 2016, 1:07 AM
Xqt subscribed.Mar 7 2016, 9:26 AM

The sorting order of wikistat was always "good" articles as I remember. You may search through the languages_by_size history of wikisource_family.

gerritbot subscribed.Mar 7 2016, 9:28 AM

Change 269730 had a related patch set uploaded (by Xqt):
[bugfix] top['total'] item is basestring not unicode

https://gerrit.wikimedia.org/r/269730

gerritbot added a project: Patch-For-Review.Mar 7 2016, 9:28 AM
jayvdb added a comment.Mar 7 2016, 9:31 AM

Ah, I see the test was broken by your patch 9c4732f42f07 , which you +2'd as a trivial change :P

Xqt added a comment.Mar 7 2016, 9:49 AM

The main thing is the test works, regardless of whether the result is incorrect :P
Anyway the related patch waits 5 weeks for reviewing it (and some others too).

jayvdb added a comment.Mar 7 2016, 11:17 AM
In T128990#2093678, @Xqt wrote:

The sorting order of wikistat was always "good" articles as I remember. You may search through the languages_by_size history of wikisource_family.

Well, WikiStats lists French Wikisource as now currently the highest in number of pages and number of good pages

http://s23.org/wikistats/wikisources_html.php , with data update date of 2014-10-21 :/

       all       good
fr  1399468	1677708
en  1029165	1614470

However special:statistics has English Wikisource as higher in good pages

       all       good
fr  2006427	252594
en  1903161     568107

Very strangely different results. scratching head

Xqt added a comment.Mar 7 2016, 11:34 AM

s23.org is outdated for years and wikistats 2.0 has "good" articles as sorting order too.[1]
The problem is that statistic content may change and we cannot assume the order is always kept. Maybe we should remove that test expecting a language code on a specific line.

[1] https://wikistats.wmflabs.org//display.php?t=ws

Xqt added a comment.Mar 7 2016, 11:38 AM

Got an additional error when testing with current release:

C:\pwb\GIT\core>pwb.py tests/wikistats_tests -v
tests: max_retries reduced from 25 to 1
WARNING: WikiStats: unicodecsv package required for using csv in Python 2; falli
ng back to using the larger XML datasets.
test_csv (__main__.WikiStatsTestCase)
Test CSV. ... skipped 'unicodecsv not installed.'
test_sort (__main__.WikiStatsTestCase)
Test sorted results. ... FAIL
test_xml (__main__.WikiStatsTestCase)
Test XML. ... ok

======================================================================
FAIL: test_sort (__main__.WikiStatsTestCase)
Test sorted results.
----------------------------------------------------------------------
Traceback (most recent call last):
  File ".\tests\wikistats_tests.py", line 33, in test_sort
    self.assertIsInstance(top['total'], UnicodeType)
AssertionError: '38708706' is not an instance of <type 'unicode'>

----------------------------------------------------------------------
Ran 3 tests in 1.863s
jayvdb added a comment.Mar 7 2016, 2:10 PM

The instance-of bug is quite strange.
I've added extra asserts (https://github.com/jayvdb/pywikibot-core/commit/03db2eedd2c60486ef066b94b24f314da1012123), and yet I cant reproduce it on linux (local machine or travis), and on Appveyor the first two builds (Python 2.6.6 and 2.7.2) both pass. waiting for the other builds...

gerritbot added a comment.Mar 7 2016, 3:55 PM

Change 275511 had a related patch set uploaded (by John Vandenberg):
Expand wikistats datatype tests

https://gerrit.wikimedia.org/r/275511

jayvdb added a comment.Mar 7 2016, 4:13 PM

All Appveyor windows environments pass these additional test_xml asserts. So I dont understand why it is failing for you :/

jayvdb added a comment.Mar 7 2016, 4:17 PM

maybe you have a version of unicodecsv that is broken?

Xqt added a comment.Mar 7 2016, 4:24 PM
C:\pwb\GIT\core>pwb.py tests/wikistats_tests -v
tests: max_retries reduced from 25 to 1
WARNING: WikiStats: unicodecsv package required for using csv in Python 2; falling back to using the larger XML datasets.
test_csv (__main__.WikiStatsTestCase)
Test CSV. ... skipped 'unicodecsv not installed.'
test_sort (__main__.WikiStatsTestCase)
Test sorted results. ... FAIL
test_xml (__main__.WikiStatsTestCase)
Test XML. ... FAIL

======================================================================
FAIL: test_sort (__main__.WikiStatsTestCase)
Test sorted results.
----------------------------------------------------------------------
Traceback (most recent call last):
  File ".\tests\wikistats_tests.py", line 34, in test_sort
    for key in top.keys()
AssertionError: False is not true

======================================================================
FAIL: test_xml (__main__.WikiStatsTestCase)
Test XML.
----------------------------------------------------------------------
Traceback (most recent call last):
  File ".\tests\wikistats_tests.py", line 68, in test_xml
    for key in data.keys()
AssertionError: False is not true

----------------------------------------------------------------------
Ran 3 tests in 2.010s

:(

Xqt added a comment.Mar 7 2016, 4:26 PM

I haven't unicodecsv installed and csv test is skipped therefore.

Xqt added a comment.Mar 7 2016, 4:31 PM

Another installation with py 2.7.10 fails too:

C:\pwb\core>pwb.py tests/wikistats_tests -v
tests: max_retries reduced from 25 to 1
WARNING: WikiStats: unicodecsv package required for using csv in Python 2; falling back to using the larger XML datasets.
WARNING: C:\pwb\core\pywikibot\version.py:100: DeprecationWarning: pywikibot.version.getversion_svn is deprecated; use getversion_svn_setuptools instead.
  (tag, rev, date, hsh) = vcs_func(_program_dir)

WARNING: C:\pwb\core\pywikibot\version.py:248: DeprecationWarning: pywikibot.version.svn_rev_info is deprecated; use getversion_svn_setuptools instead.
  tag, rev, date = svn_rev_info(_program_dir)

test_csv (__main__.WikiStatsTestCase)
Test CSV. ... skipped 'unicodecsv not installed.'
test_sort (__main__.WikiStatsTestCase)
Test sorted results. ... FAIL
test_xml (__main__.WikiStatsTestCase)
Test XML. ... ok

======================================================================
FAIL: test_sort (__main__.WikiStatsTestCase)
Test sorted results.
----------------------------------------------------------------------
Traceback (most recent call last):
  File ".\tests\wikistats_tests.py", line 33, in test_sort
    self.assertIsInstance(top['total'], UnicodeType)
AssertionError: '38708706' is not an instance of <type 'unicode'>

----------------------------------------------------------------------
Ran 3 tests in 2.094s

FAILED (failures=1, skipped=1)

C:\pwb\core>

I've not added your additional test PS here.

jayvdb added a comment.Mar 7 2016, 4:34 PM

thx for testing this.
so the problem is definitely in the xml implementation, but that is a standard module.

Appveyor is testing using 2.6.6 (64bit only), 2.7.2 (64bit only) and 2.7.11 (32 and 64bit).

If your Python version is different, I can add your current Python version to Appveyor to see if that is the problem.

Xqt added a comment.Mar 7 2016, 4:37 PM

my first py version is: '2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)]'
2nd is: '2.7.10 (default, May 23 2015, 09:44:00) [MSC v.1500 64 bit (AMD64)]'

Xqt added a comment.Mar 7 2016, 4:47 PM

Additional information about xml.etree:

  1. $Id: __init__.py 3375 2008-02-13 08:05:08Z fredrik $
  2. elementtree package
Xqt added a comment.Mar 7 2016, 4:51 PM

I found the same error with ElementTree instead of cElementTree :(

Xqt added a comment.Mar 7 2016, 4:57 PM
This comment was removed by Xqt.
gerritbot added a comment.Mar 7 2016, 10:58 PM

Change 275511 merged by jenkins-bot:
Expand wikistats datatype tests

https://gerrit.wikimedia.org/r/275511

gerritbot added a comment.Mar 8 2016, 10:11 AM

Change 275780 had a related patch set uploaded (by Xqt):
[bugfix] force wikistats fields to unicode when using xml format

https://gerrit.wikimedia.org/r/275780

gerritbot added a comment.Mar 8 2016, 10:18 AM

Change 269730 merged by jenkins-bot:
[bugfix] Additional wikistats tests

https://gerrit.wikimedia.org/r/269730

jayvdb mentioned this in T129219: python 3 does not have sys.maxint.Mar 8 2016, 6:20 PM
jayvdb mentioned this in T129268: wikistats xml sometimes contains str instead of unicode on Python 2.Mar 8 2016, 7:29 PM
jayvdb renamed this task from WikiStats sorting algorithm causing unexpected largest wikisource to English Wikisource has more good pages than French Wikisource, breaking the WikiStats tests for the largest wikisource.Mar 8 2016, 7:34 PM
jayvdb closed this task as Resolved.
jayvdb assigned this task to Xqt.
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