--- a
+++ b/contrib/sb-bsd-sockets/rt.lisp
@@ -0,0 +1,167 @@
+;-*-syntax:COMMON-LISP;Package:(RT :use "COMMON-LISP" :colon-mode :external)-*-
+
+#|----------------------------------------------------------------------------|
+ | Copyright 1990 by the Massachusetts Institute of Technology, Cambridge MA. |
+ |                                                                            |
+ | Permission  to  use,  copy, modify, and distribute this software  and  its |
+ | documentation for any purpose  and without fee is hereby granted, provided |
+ | that this copyright  and  permission  notice  appear  in  all  copies  and |
+ | supporting  documentation,  and  that  the  name  of M.I.T. not be used in |
+ | advertising or  publicity  pertaining  to  distribution  of  the  software |
+ | without   specific,   written   prior   permission.      M.I.T.  makes  no |
+ | representations  about  the  suitability of this software for any purpose. |
+ | It is provided "as is" without express or implied warranty.                |
+ |                                                                            |
+ |  M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,  INCLUDING  |
+ |  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL  |
+ |  M.I.T. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL  DAMAGES  OR  |
+ |  ANY  DAMAGES  WHATSOEVER  RESULTING  FROM  LOSS OF USE, DATA OR PROFITS,  |
+ |  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER  TORTIOUS  ACTION,  |
+ |  ARISING  OUT  OF  OR  IN  CONNECTION WITH THE USE OR PERFORMANCE OF THIS  |
+ |  SOFTWARE.                                                                 |
+ |----------------------------------------------------------------------------|#
+
+;This is the December 19, 1990 version of the regression tester.
+
+(defpackage "RT"
+  (:use "COMMON-LISP")
+  (:export deftest get-test do-test rem-test
+           rem-all-tests do-tests pending-tests
+           continue-testing *test*
+           *do-tests-when-defined*))
+(in-package :rt)
+(defvar *test* nil "Current test name")
+(defvar *do-tests-when-defined* nil)
+(defvar *entries* '(nil) "Test database")
+(defvar *in-test* nil "Used by TEST")
+(defvar *debug* nil "For debugging")
+
+(defstruct (entry (:conc-name nil)
+		  (:type list))
+  pend name form)
+
+(defmacro vals (entry) `(cdddr ,entry))
+
+(defmacro defn (entry) `(cdr ,entry))
+
+(defun pending-tests ()
+  (do ((l (cdr *entries*) (cdr l))
+       (r nil))
+      ((null l) (nreverse r))
+    (when (pend (car l))
+      (push (name (car l)) r))))
+
+(defun rem-all-tests ()
+  (setq *entries* (list nil))
+  nil)
+
+(defun rem-test (&optional (name *test*))
+  (do ((l *entries* (cdr l)))
+      ((null (cdr l)) nil)
+    (when (equal (name (cadr l)) name)
+      (setf (cdr l) (cddr l))
+      (return name))))
+
+(defun get-test (&optional (name *test*))
+  (defn (get-entry name)))
+
+(defun get-entry (name)
+  (let ((entry (find name (cdr *entries*)
+		     :key #'name
+		     :test #'equal)))
+    (when (null entry)
+      (report-error t
+        "~%No test with name ~:@(~S~)."
+	name))
+    entry))
+
+(defmacro deftest (name form &rest values)
+  `(add-entry '(t ,name ,form .,values)))
+
+(defun add-entry (entry)
+  (setq entry (copy-list entry))
+  (do ((l *entries* (cdr l))) (nil)
+    (when (null (cdr l))
+      (setf (cdr l) (list entry))
+      (return nil))
+    (when (equal (name (cadr l)) 
+		 (name entry))
+      (setf (cadr l) entry)
+      (report-error nil
+        "Redefining test ~@:(~S~)"
+        (name entry))
+      (return nil)))
+  (when *do-tests-when-defined*
+    (do-entry entry))
+  (setq *test* (name entry)))
+
+(defun report-error (error? &rest args)
+  (cond (*debug* 
+	 (apply #'format t args)
+	 (if error? (throw '*debug* nil)))
+	(error? (apply #'error args))
+	(t (apply #'warn args))))
+
+(defun do-test (&optional (name *test*))
+  (do-entry (get-entry name)))
+
+(defun do-entry (entry &optional
+		 (s *standard-output*))
+  (catch '*in-test*
+    (setq *test* (name entry))
+    (setf (pend entry) t)
+    (let* ((*in-test* t)
+           (*break-on-warnings* t)
+	   (r (multiple-value-list
+		(eval (form entry)))))
+      (setf (pend entry)
+	    (not (equal r (vals entry))))
+      (when (pend entry)
+	(format s "~&Test ~:@(~S~) failed~
+                   ~%Form: ~S~
+                   ~%Expected value~P: ~
+                      ~{~S~^~%~17t~}~
+                   ~%Actual value~P: ~
+                      ~{~S~^~%~15t~}.~%"
+		*test* (form entry)
+		(length (vals entry))
+		(vals entry)
+		(length r) r))))
+      (when (not (pend entry)) *test*))
+
+(defun continue-testing ()
+  (if *in-test*
+      (throw '*in-test* nil)
+      (do-entries *standard-output*)))
+
+(defun do-tests (&optional
+		 (out *standard-output*))
+  (dolist (entry (cdr *entries*))
+    (setf (pend entry) t))
+  (if (streamp out)
+      (do-entries out)
+      (with-open-file 
+	  (stream out :direction :output)
+	(do-entries stream))))
+
+(defun do-entries (s)
+  (format s "~&Doing ~A pending test~:P ~
+             of ~A tests total.~%"
+          (count t (cdr *entries*)
+		 :key #'pend)
+	  (length (cdr *entries*)))
+  (dolist (entry (cdr *entries*))
+    (when (pend entry)
+      (format s "~@[~<~%~:; ~:@(~S~)~>~]"
+	      (do-entry entry s))))
+  (let ((pending (pending-tests)))
+    (if (null pending)
+	(format s "~&No tests failed.")
+	(format s "~&~A out of ~A ~
+                   total tests failed: ~
+                   ~:@(~{~<~%   ~1:;~S~>~
+                         ~^, ~}~)."
+		(length pending)
+		(length (cdr *entries*))
+		pending))
+    (null pending)))