Re: [TFUI] Dialogs and EventHandlers

On Friday, November 4, 2005, at 8:33:13 AM, Cory Foy wrote:

> Recently on the NUnit list someone emailed in trying to figure out how
> to test "private void" methods. Turns out they were wanting to test an
> event handler that opened a FontDialog, which in turn set the font of
> the form.

> While my first reaction was that it was probably easiest to test it 
> manually, I decided to give it a shot to create an automated way to test it.

> I'd love you have your feedback on if this would have been the approach
> you would have taken and anything else I could have done differently:

> http://www.cornetdesign.com/2005/11/writing-tests-for-private-void-classes.html

Looks nice ... it felt a little less test-driven than I was
comfortable with, but I don't see a way around that.

In the FontFactory, I might have had the factory contain a default
implementation consisting of an instance of the real font, and
override that with my test instance with a static setter that I
could fire from the test, rather than the boolean.

Whether I did that or not would depend on how much in my way the
language got. I probably wouldn't use reflection, as one of the
notes suggested, in Java, but in Smalltalk, where a class is an
object I might well just store the class in the variable and send in
the message new (since in Smalltalk new is a message, not a
keyword).

Nice.

Ron Jeffries
www.XProgramming.com
Will Turner: This is either madness or brilliance.
Captain Jack Sparrow: It's remarkable how often those two traits coincide. 



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