Called from UploadBaseTest::testTitleValidation:
00:03:43.113 20) UploadBaseTest::testTitleValidation with data set #5 ('A', null, 8, 'upload title without extension')
00:03:43.113 ValueError: Path cannot be empty
00:03:43.113
00:03:43.113 /workspace/src/includes/libs/mime/MimeAnalyzer.php:549
00:03:43.113 /workspace/src/includes/libs/mime/MimeAnalyzer.php:520
00:03:43.113 /workspace/src/includes/upload/UploadBase.php:1044
00:03:43.113 /workspace/src/tests/phpunit/includes/upload/UploadBaseTest.php:634
00:03:43.113 /workspace/src/tests/phpunit/includes/upload/UploadBaseTest.php:35
00:03:43.113 /workspace/src/tests/phpunit/MediaWikiIntegrationTestCase.php:446
00:03:43.113 /workspace/src/tests/phpunit/phpunit.php:75
00:03:43.113 /workspace/src/maintenance/doMaintenance.php:107
00:03:43.113 /workspace/src/tests/phpunit/phpunit.php:134
00:03:43.113 === Logs generated by test case
00:03:43.113 [objectcache] [debug] MainWANObjectCache using store {class} {"class":"EmptyBagOStuff"}
00:03:43.113 [localisation] [debug] LocalisationCache using store LCStoreNull []
00:03:43.113 [objectcache] [debug] MainWANObjectCache using store {class} {"class":"EmptyBagOStuff"}
00:03:43.113 [Mime] [info] MimeAnalyzer::guessMimeType: WARNING: use of the $ext parameter is deprecated. Use improveTypeFromExtension($mime, $ext) instead.
00:03:43.113 []
00:03:43.113 ===