Hey there and welcome!
GNU Smalltalk versions 3.2.2 or higher should work on Mac OS X and Linux. I have written these koans on 3.2.2, Mac OS X 10.6.
Note: I am certain that 3.0.x does not work and it will complain about not understanding #asString.
The simplest way to install GNU Smalltalk is via homebrew:
brew install gnu-smalltalk
Or you can use the Docker image. See below.
In the root directory of the project, type:
script/run
You will see a message similar to this:
TestAssert#testTruth has damaged your karma.
This means you will need to open the TestAssert.st file under src/koans and solve the test under testTruth method (aka message).
All koan files contain a set of tests, each starting with 'test'. Solve each test one by one, running script/run in between.
By default, script/run does not reveal the answer. If you are truly stuck in a koan, type script/run_and_reveal to run and reveal the answer. Use this sparingly!
Make sure you have Docker installed.
In the root directory of the project, type:
script/docker/run
This runs against a small image built on debian:stretch-slim.
- vim
- emacs
| variable1 variable2 | is to declare variable1 and variable2 separate by a space. At least one space must be used to separate variables. Commas are not used.
:= is an assignment operator
"this is a comment"
'this is a string'
#speak is the notation used to describe the message 'speak'.
Words wrapped in <> are called pragmas and define class comments, category, imported namespaces, and the shape of indexed instance variables. More information here.
In depth information here.
Ok, have at it!
- TestAssert
- TestBasic
- TestNil
- TestObject
- TestMessage
- TestNumber
- TestString
- TestCharacter
- TestSymbol
- TestArray
- TestOrderedCollection
- TestSortedCollection
- TestBag
- TestAssociation
- TestDictionary
- TestSet
- TestBlock
- TestCollectionsRevisited
- TestIteration
- TestBoolean
- TestException
- TestRegex
- TestClass
- TestMetaclass
Please create a GitHub issue or find me on Twitter (@skim), if you have any suggestions on how to improve existing koans, new koans, or any other comments.
GNU Smalltalk Koans were inspired by Ruby Koans and Clojure Koans.
Thanks to Matt Yoho at Edgecase for letting me port some of the koans over.
- 8th Light
- Chris Rathman for the awesome language notes.
- @jayden for being the first person to run through the koans.
GNU Smalltalk Koans shares the same license as Ruby Koans and is released under a Creative Commons, Attribution-NonCommercial-ShareAlike, Version 3.0 (https://creativecommons.org/licenses/by-nc-sa/3.0/) License.