2014-04-02 13:21 GMT+02:00 Roelof Wobben <r.wob...@home.nl>: > Hello, > > On the first part I have to make a class named BlankCell which is a > subclass of TestCase. > So far no problem. >
No, firstly, all cells are just subclasses of Object ( http://squeak.preeminent.org/tut2007/html/015.html). And in step http://squeak.preeminent.org/tut2007/html/015A.html class BlankCellTestCase is a subclass of TestCase > > > But when you are on the MirrorCell part BlankCell must be a subclass of > Cell. > But then the tests will fail because should: cannot be found. > In step http://squeak.preeminent.org/tut2007/html/025.html, you create a new abstract class Cell and moves the BlankCell under the new abstract class. > The manual says nothing about that the new class Cell must be a part of > TestCase. > No, the TestCases are just "using" your Cell classes. In http://squeak.preeminent.org/tut2007/html/026.html you are moving the MirrorCell under Cell as well. And only testcase BlankCellTestCase is a subclass of TestCase. And then you are createinga new subclass of TestCase -> MirrorCellTestCase > > How to solve this ? > > Roelof > > >
