(defvar *total-tests* 0)
(defvar *passed-tests* 0)
(defvar *failed-tests* 0)

(defvar *expected-failures* 0)
(defvar *unexpected-passes* 0)

(defvar *timestamp* nil)

(defmacro test (condition)
  `(progn
     (cond
       (,condition
        (write-line ,(concat "Test `" (prin1-to-string condition) "' passed"))
        (incf *passed-tests*))
       (t
        (write-line ,(concat "Test `" (prin1-to-string condition) "' failed."))
        (incf *failed-tests*)))
     (incf *total-tests*)))

(defmacro expected-failure (condition)
  `(progn
     (cond
       (,condition
        (write-line ,(concat "Test `" (prin1-to-string condition) "' passed unexpectedly!"))
        (incf *unexpected-passes*))
       (t
        (write-line ,(concat "Test `" (prin1-to-string condition) "' failed expectedly."))
        (incf *expected-failures*)))
     (incf *total-tests*)))

(write-line "Running tests...")
(write-line "")

(setq *timestamp* (get-internal-real-time))