Manual:$wgParserTestFiles

Details
Parser test suite files to be run by parserTests.php when no specific filename is passed to it.

Extensions may add their own tests to this array, or site-local tests may be added via .

Use full paths.

Deprecation
This variable is deprecated with 1>gerrit:363961|this change. Instead, all   files in an extension's   directory will be auto-discovered.