Christoph Thiede uploaded a new version of Tests to project The Trunk:
http://source.squeak.org/trunk/Tests-ct.451.mcz

==================== Summary ====================

Name: Tests-ct.451
Author: ct
Time: 13 April 2021, 7:39:38.492492 pm
UUID: f87e67c6-9002-ee48-a8a0-9ee233d7b473
Ancestors: Tests-nice.450

Documents a long-known bug when parsing a message with multiple repetitions of a colon.

See: http://forum.world.st/BUG-Parser-does-not-detect-syntax-error-with-double-colon-tp5112572.html

=============== Diff against Tests-nice.450 ===============

Item was added:
+ ----- Method: ParserTest>>testDoubleColonMessage (in category 'tests') -----
+ testDoubleColonMessage
+ 
+ 	self
+ 		should: [Parser new
+ 			parse: 'griffle foo bar:: baz'
+ 			class: UndefinedObject]
+ 		raise: SyntaxErrorNotification.!