On page 24 of Squeak by Example it says to run the tests in CollectionsTest-Text, including a newly-defined method, testShout. In a fresh Squeak 3.9 I get an unexpected assertion failure for StringTest>>#TestIndexOf, which is defined as.
testIndexOf "test for http://bugs.impara.de/view.php?id=3574" self assert: ('abc-' asWideString indexOfAnyOf: (CharacterSet newFrom: ' -0123456789')) = 4. self assert: ('ab7' asWideString indexOfAnyOf: (CharacterSet newFrom: ' -0123456789')) = 3. self assert: ('a2c' asWideString indexOfAnyOf: (CharacterSet newFrom: ' -0123456789')) = 2. self assert: ('3bc' asWideString indexOfAnyOf: (CharacterSet newFrom: ' -0123456789')) = 1. self assert: ('abc' asWideString indexOfAnyOf: (CharacterSet newFrom: ' -0123456789')) = 0. "extension to wide characters" self assert: ((String with: 803 asCharacter with: 811 asCharacter) indexOfAnyOf: (CharacterSet newFrom: (String with: 811 asCharacter with: 812 asCharacter))) = 2. self assert: ('abc' indexOfAnyOf: (CharacterSet newFrom: (String with: 811 asCharacter with: 812 asCharacter))) = 0. self assert: ('abc' indexOfAnyOf: (CharacterSet newFrom: (String with: 811 asCharacter with: $c))) = 3.
I don't know how to copy the error messages from the TestFailure window. I have not yet started to learn the debugger, so I am at a lost to find out more.
Any suggestions?