[Wikidata-bugs] [Maniphest] [Created] T182082: [Bug] Uncatched UnsupportedObjectException in EntityContent::getNativeData

Tue, 05 Dec 2017 04:21:07 -0800

thiemowmde created this task.
thiemowmde added projects: Wikidata, MediaWiki-extensions-WikibaseRepository, Lexicographical data, Regression, Wikidata-Sprint-2017-11-22.
Herald added a subscriber: Aklapper.

TASK DESCRIPTION

The WikibaseLexeme tests currently fail:

Wikibase\Lexeme\Tests\MediaWiki\Api\LexemeEditEntityTest::testGivenInvalidDataInClearRequest_errorIsReported with data set "language missing in new data" (array(array(array('en', 'foo')), 'Q55'))
Failed asserting that Serializers\Exceptions\UnsupportedObjectException Object (...) is an instance of class "ApiUsageException".

/home/jenkins/workspace/mwext-testextension-hhvm-composer-jessie/src/extensions/WikibaseLexeme/tests/phpunit/mediawiki/Api/LexemeEditEntityTest.php:482
/home/jenkins/workspace/mwext-testextension-hhvm-composer-jessie/src/tests/phpunit/MediaWikiTestCase.php:416
/home/jenkins/workspace/mwext-testextension-hhvm-composer-jessie/src/maintenance/doMaintenance.php:94

Here is a more detailed call stack:

Wikibase\Lexeme\Tests\MediaWiki\Api\LexemeEditEntityTest::testGivenInvalidDataInClearRequest_errorIsReported with data set "language and lexical category missing in new data" (array(array(array('en', 'foo'))))
Serializers\Exceptions\UnsupportedObjectException: Can not serialize incomplete Lexeme

/var/www/mediawiki/core/extensions/WikibaseLexeme/src/DataModel/Serialization/StorageLexemeSerializer.php:95
/var/www/mediawiki/core/extensions/WikibaseLexeme/src/DataModel/Serialization/StorageLexemeSerializer.php:66
/var/www/mediawiki/core/extensions/WikibaseLexeme/src/DataModel/Serialization/ExternalLexemeSerializer.php:59
/var/www/mediawiki/core/extensions/WikibaseLexeme/src/DataModel/Serialization/ExternalLexemeSerializer.php:55
/var/www/mediawiki/core/extensions/WikibaseMediaInfo/vendor/serialization/serialization/src/Serializers/DispatchingSerializer.php:42
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/Content/EntityContent.php:453
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/Content/EntityContent.php:462
/var/www/mediawiki/core/includes/content/ContentHandler.php:780
/var/www/mediawiki/core/includes/content/ContentHandler.php:923
/var/www/mediawiki/core/includes/page/WikiPage.php:1621
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/Store/Sql/WikiPageEntityStore.php:292
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/Store/Sql/WikiPageEntityStore.php:189
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/EditEntity.php:712
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/Api/EntitySavingHelper.php:351
/var/www/mediawiki/core/extensions/Wikibase/repo/includes/Api/ModifyEntity.php:286
/var/www/mediawiki/core/includes/api/ApiMain.php:1582
/var/www/mediawiki/core/includes/api/ApiMain.php:513
/var/www/mediawiki/core/tests/phpunit/includes/api/ApiTestCase.php:99
/var/www/mediawiki/core/extensions/Wikibase/repo/tests/phpunit/includes/Api/WikibaseApiTestCase.php:100
/var/www/mediawiki/core/extensions/WikibaseLexeme/tests/phpunit/mediawiki/Api/LexemeEditEntityTest.php:477
/var/www/mediawiki/core/tests/phpunit/MediaWikiTestCase.php:416
/var/www/mediawiki/core/maintenance/doMaintenance.php:94

The core change to "blame" is https://gerrit.wikimedia.org/r/390224 (T167656):

  • ContentHandler::getChangeType calls Content::getSize.
  • EntityContent::getSize calls EntityContent::getNativeData.
  • EntityContent::getNativeData serializes the entity object into an array structure. This serializer call does not catch SerializationExceptions. It assumes the entity can be serialized.
  • The concept of an "unserializable" entity never existed before. StorageLexemeSerializer is the first serializer introducing such a concept. This is why this code path never failed before, but does now.

TASK DETAIL
https://phabricator.wikimedia.org/T182082

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To: thiemowmde
Cc: Ladsgroup, daniel, Lydia_Pintscher, Jonas, WMDE-leszek, thiemowmde, Aklapper, Lahi, Gq86, Cinemantique, GoranSMilovanovic, Jrbranaa, QZanden, Wikidata-bugs, aude, Darkdadaah, Mbch331
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