This project is still in the development phase but I like its idea. Breeze tries to improve the development process. An especially interesting feature: its ability to run tests on function redefinition!
To make it work, you have to use defun and deftest from breeze:
POFTHEDAY> (breeze:defun foo ()
100)
;; When we define the test, it is immediately
;; run in a separate thread:
POFTHEDAY> (breeze:deftest test-foo
(unless (= (foo) 42)
(error "Foo should return 42")))
Running all tests...
WARNING:
Test TEST-FOO failed with condition Foo should return 42
Test "TEST-FOO" failed with condition:
"Foo should return 42"
Done [0/1] tests passed.
;; Now I'm going to fix it.
;; Pay attention on the output. Breeze automatically
;; runs tests of the 'foo function in a separate thread:
POFTHEDAY> (breeze:defun foo ()
42)
Running all tests....
Done [1/1] tests passed.
;; Now let's break it again!
POFTHEDAY> (breeze:defun foo ()
77)
FOO
Running all tests...
WARNING:
Test TEST-FOO failed with condition Foo should return 42
Test "TEST-FOO" failed with condition:
"Foo should return 42"
Done [0/1] tests passed.
There is also some extension for Emacs and SLIME, but I didn’t test it yet. I hope the author will make this system more usable.
The first feature which comes to mind is support for existing
unit-testing frameworks. The second is an indicator for the Emacs mode-line
if some tests failed after I hit C-c C-c.
To conclude, make good tooling! Tooling should be convenient!