Hello,
since I just found out, how easy it is, to write test cases
and run them, I thought I'd share a few lines on this.
Matthias: feel free to add this to the cookbook.
So you want to write test cases for you new function? Load
lib/ans94/core/postpone.frt
lib/ans94/core-ext/marker.frt
they will be needed.
The tester uses 4 words:
TESTING add your comment here
is a "talking comment" to make the output somehow look nice.
{
starts a new test. Prepare the stack and call your function, then
->
indicates that the test code is complete. Add the remaining stack after
this word.
}
completes the test by comparing the stack with the expected stack. If
everything is well, the ok prompt will appear.
A test summary is not printed, but that could
Write a file with your new library function, e.g.
\ function.frt
\ define some new function
: plus + ;
Then write the test cases, e.g.
\ function-test.frt
\ load the tester
include lib/ans94/tester/tester-amforth.frt
\ load the code under test
include function.frt
\ run the tests
TESTING the tester -----------------------------------------
{ 1 1 + -> 2 }
{ 1 1 plus -> 2 }
{ 1 1 plus -> 3 } \ incorrect
{ 1 2 plus -> 3 } \ tester contiues
{ $FFFF 1 plus -> 0 }
{ 1 2 3 4 plus -> 1 2 7 }
Now load the file 'function-test.frt' to the controller and watch
the show.
TESTING the tester -----------------------------------------
ok
> { 1 1 + -> 2 }
ok
> { 1 1 plus -> 2 }
ok
> { 1 1 plus -> 3 }
INCORRECT RESULT: { 1 1 plus -> 3 }
ok
> { 1 2 plus -> 3 }
ok
> { $FFFF 1 plus -> 0 }
ok
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