add truncated-print tests

* doc/ref/misc-modules.texi (Pretty Printing): Fix an error in
  truncated-print example.

* test-suite/Makefile.am:
 * test-suite/tests/print.test: Add truncated-print tests.

doc/ref/misc-modules.texi

@@ -1,6 +1,6 @@
 @c -*-texinfo-*-
 @c This is part of the GNU Guile Reference Manual.
-@c Copyright (C)  1996, 1997, 2000, 2001, 2002, 2003, 2004, 2006, 2009
+@c Copyright (C)  1996, 1997, 2000, 2001, 2002, 2003, 2004, 2006, 2009, 2010
 @c   Free Software Foundation, Inc.
 @c See the file guile.texi for copying conditions.
 
@@ -77,7 +77,7 @@ line in which to do so.
 @print{} (a b #(c ...) . #)
 (truncated-print exp #:width 20) (newline)
 @print{} (a b #(c d e) f . g)
-(truncated-print "The quick brown fox" #:width 10) (newline)
+(truncated-print "The quick brown fox" #:width 20) (newline)
 @print{} "The quick brown..."
 (truncated-print (current-module) #:width 20) (newline)
 @print{} #<directory (gui...>

test-suite/Makefile.am

@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in.
 ##
-## Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Software Foundation, Inc.
+## Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Software Foundation, Inc.
 ##
 ## This file is part of GUILE.
 ##
@@ -58,6 +58,7 @@ SCM_TESTS = tests/alist.test			\
 	    tests/numbers.test			\
 	    tests/optargs.test			\
 	    tests/options.test			\
+	    tests/print.test			\
 	    tests/procprop.test			\
 	    tests/poe.test			\
 	    tests/popen.test			\

test-suite/tests/print.test

@@ -0,0 +1,46 @@
+;;;; -*- scheme -*-
+;;;;
+;;;; Copyright (C) 2010  Free Software Foundation, Inc.
+;;;;
+;;;; This library is free software; you can redistribute it and/or
+;;;; modify it under the terms of the GNU Lesser General Public
+;;;; License as published by the Free Software Foundation; either
+;;;; version 3 of the License, or (at your option) any later version.
+;;;; 
+;;;; This library is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;;;; Lesser General Public License for more details.
+;;;; 
+;;;; You should have received a copy of the GNU Lesser General Public
+;;;; License along with this library; if not, write to the Free Software
+;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+(define-module (test-suite test-print)
+  #:use-module (ice-9 pretty-print)
+  #:use-module (test-suite lib))
+
+(with-test-prefix "truncated-print"
+  (define exp '(a b #(c d e) f . g))
+  (define (tprint x width)
+    (with-output-to-string
+      (lambda ()
+        (truncated-print x #:width width))))
+  
+  (pass-if (equal? (tprint exp 10)
+                   "(a b . #)"))
+  
+  (pass-if (equal? (tprint exp 15)
+                   "(a b # f . g)"))
+  
+  (pass-if (equal? (tprint exp 18)
+                   "(a b #(c ...) . #)"))
+  
+  (pass-if (equal? (tprint exp 20)
+                   "(a b #(c d e) f . g)"))
+  
+  (pass-if (equal? (tprint "The quick brown fox" 20)
+                   "\"The quick brown...\""))
+
+  (pass-if (equal? (tprint (current-module) 20)
+                   "#<directory (tes...>")))