"Test isKindOf:/respondsTo: with undefined receiver" TestCase subclass: #TestIKO instanceVariableNames: '' category: 'sunit-s8'! ! TestIKO methodsFor: 'test'! testIsKindOf self deny: ([ MyUndefinedGlobal isKindOf: Point ] on: Error do: [true])! ! ! TestIKO methodsFor: 'test'! testRespondsTo self deny: ([ MyUndefinedGlobal respondsTo: #yourself ] on: Error do: [true])! !