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diff --git a/tests/print.impure.lisp b/tests/print.impure.lisp
index 9935402..b592d84 100644
--- a/tests/print.impure.lisp
+++ b/tests/print.impure.lisp
@@ -1,4 +1,18 @@
-(in-package :cl-user)
+;;;; miscellaneous tests of printing stuff
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; While most of SBCL is derived from the CMU CL system, the test
+;;;; files (like this one) were written from scratch after the fork
+;;;; from CMU CL.
+;;;; 
+;;;; This software is in the public domain and is provided with
+;;;; absolutely no warranty. See the COPYING and CREDITS files for
+;;;; more information.
+
+(load "assertoid.lisp")
+(use-package "ASSERTOID")
 
 ;;; We should be able to output X readably (at least when *READ-EVAL*).
 (defun assert-readable-output (x)
@@ -32,5 +46,62 @@
 ;;; an error) and provided a fix which was ported to sbcl-0.6.12.35.
 (assert (null (format t "~F" "foo")))
 
+;;; This was a bug in SBCL until 0.6.12.40 (originally reported as a
+;;; CMU CL bug by Erik Naggum on comp.lang.lisp).
+(loop for *print-base* from 2 to 36
+      with *print-radix* = t
+      do
+      (assert (string= "#*101" (format nil "~S" #*101))))
+
+;;; bug in sbcl-0.7.1.25, reported by DB sbcl-devel 2002-02-25
+(assert (string= "0.5" (format nil "~2D" 0.5)))
+
+;;; we want malformed format strings to cause errors rather than have
+;;; some DWIM "functionality".
+(assert (raises-error? (format nil "~:2T")))
+
+;;; bug reported, with fix, by Robert Strandh, sbcl-devel 2002-03-09,
+;;; fixed in sbcl-0.7.1.36:
+(assert (string= (format nil "~2,3,8,'0$" 1234567.3d0) "1234567.30"))
+
+;;; checks that other FORMAT-DOLLAR output remains sane after the
+;;; 0.7.1.36 change
+(assert (string= (format nil "~$" 0) "0.00"))
+(assert (string= (format nil "~$" 4) "4.00"))
+(assert (string= (format nil "~$" -4.0) "-4.00"))
+(assert (string= (format nil "~2,7,11$" -4.0) "-0000004.00"))
+(assert (string= (format nil "~2,7,11,' $" 1.1) " 0000001.10"))
+(assert (string= (format nil "~1,7,11,' $" 1.1) "  0000001.1"))
+(assert (string= (format nil "~1,3,8,' $" 7.3) "   007.3"))
+(assert (string= (format nil "~2,3,8,'0$" 7.3) "00007.30"))
+
+;;; Check for symbol lookup in ~/ / directive -- double-colon was
+;;; broken in 0.7.1.36 and earlier
+(defun print-foo (stream arg colonp atsignp &rest params)
+  (declare (ignore colonp atsignp params))
+  (format stream "~d" arg))
+
+(assert (string= (format nil "~/print-foo/" 2) "2"))
+(assert (string= (format nil "~/cl-user:print-foo/" 2) "2"))
+(assert (string= (format nil "~/cl-user::print-foo/" 2) "2"))
+(assert (raises-error? (format nil "~/cl-user:::print-foo/" 2)))
+(assert (raises-error? (format nil "~/cl-user:a:print-foo/" 2)))
+(assert (raises-error? (format nil "~/a:cl-user:print-foo/" 2)))
+(assert (raises-error? (format nil "~/cl-user:print-foo:print-foo/" 2)))
+
+;;; better make sure that we get this one right, too
+(defun print-foo\:print-foo (stream arg colonp atsignp &rest params)
+  (declare (ignore colonp atsignp params))
+  (format stream "~d" arg))
+
+(assert (string= (format nil "~/cl-user:print-foo:print-foo/" 2) "2"))
+(assert (string= (format nil "~/cl-user::print-foo:print-foo/" 2) "2"))
+
+;;; Check for error detection of illegal directives in a~<..~> justify
+;;; block (see ANSI section 22.3.5.2)
+(assert (raises-error? (format nil "~<~W~>" 'foo)))
+(assert (raises-error? (format nil "~<~<~A~:>~>" '(foo))))
+(assert (string= (format nil "~<~<~A~>~>" 'foo) "FOO"))
+
 ;;; success
 (quit :unix-status 104)