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+;;;; -*- lisp -*-
+
+(asdf:oos 'asdf:load-op :FiveAM)
+
+(defpackage :it.bese.FiveAM.example
+  (:use :common-lisp
+	:it.bese.FiveAM))
+
+(in-package :it.bese.FiveAM.example)
+
+;;; First we need some functions to test.
+
+(defun add-2 (n)
+  (+ n 2))
+
+(defun add-4 (n) 
+  (+ n 4))
+
+;;; Now we need to create a test which makes sure that add-2 and add-4
+;;; work as specified.
+
+;; we create a test named ADD-2 and supply a short description.
+(test add-2
+ "Test the ADD-2 function" ;; a short description
+ ;; the checks
+ (is (= 2 (add-2 0)))
+ (is (= 0 (add-2 -2))))
+
+;; we can already run add-2. This will return the list of test
+;; results, it should be a list of two test-passed objects.
+
+(run 'add-2) 
+
+;; since we'd like to have some kind of readbale output we'll explain
+;; the results
+
+(explain *)
+
+;; or we could do both at once:
+
+(run! 'add-2)
+
+;;; So now we've defined and run a single test. Since we plan on
+;;; having more than one test and we'd like to run them together let's
+;;; create a simple test suite.
+
+(def-suite example-suite :description "The example test suite.")
+
+;; we could explictly specify that every test we create is in the the
+;; example-suite suite, but it's easier to just change the default
+;; suite:
+
+(in-suite example-suite)
+
+;; now we'll create a new test for the add-4 function.
+
+(test add-4
+  (is (= 0 (add-4 -4))))
+
+;; now let's run the test
+
+(run! 'add-4)
+
+;; we can get the same effect by running the suite:
+
+(run! 'example-suite)
+
+;; since we'd like both add-2 and add-4 to be in the same suite, let's
+;; redefine add-2 to be in this suite:
+
+(test add-2 "Test the ADD-2 function"
+ (is (= 2 (add-2 0)))
+ (is (= 0 (add-2 -2))))
+
+;; now we can run the suite and we'll see that both add-2 and add-4
+;; have been run (we know this since we no get 4 checks as opposed to
+;; 2 as before.
+
+(run! 'example-suite)
+
+;; Just for fun let's see what happens when a test fails. Again we'll
+;; redefine add-2, but add in a third, failing, check:
+
+(test add-2 "Test the ADD-2 function"
+ (is (= 2 (add-2 0)))
+ (is (= 0 (add-2 -2)))
+ (is (= 0 (add-2 0))))