Wednesday, October 3, 2007

MUnit Testing Framework

I recently received a request from a reader wondering where the unit test application was on my blog. I don't have a post on that yet so I thought that now was as good a time as any to make one.

I'm not going to go into the details here. Suffice it to say, that the MUnit framework is based on the original JUnit framework but for Magik instead of Java.

I have found it helpful when developing code to create some kind of automated test scripts. There is much that can be debated about how much or how little test scripting to do.

Mark Field had a detailed presentation at the Smallworld 2007 Americas Users Conference this year titled "Implementing MUnit for Smallworld". I imagine you could contact him for the presentation or maybe we can get him to post more information on his blog. If you have the username/password, you can download the presentation from

[NOTE: The above links are old. You can find the presentation slides and download zip file at]

GE also had/has a version of MUnit but from what I understand they are reluctant to release it to the community. I found that there was a version of MUnit created by Jan Vorel at Unfortunately the current version of that site is not very user friendly like it used to be and you can no longer download Jan's code from there. But if you look at you will find an archived version of the web site that still has a working link to his version of MUnit. It only works on CST 3.3 but I found that with a few modifications it works in CST 4.x as well.

The implementations of MUnit that I have seen do not allow you to test mouse/keyboard input. Mark's presentation describes how he enhanced MUnit to include those features.

One enhancement I did for the MUnit framework some time ago was to create a new test listener that exported the test results as XML and/or HTML. An example of those results is here.

You can click here for a Yahoo Groups search result on MUnit.

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