X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Fstream.impure.lisp;h=fdc294bf89d9b0dca7d5eeb4832a38d73b65600a;hb=16a6592367eec7c5e9da668ec42fd260e7705b0c;hp=7348bfea9f29030a02b75211b8a3519f722fe2c5;hpb=cbe488f1e264bc8f7b0501430b260db1887b055d;p=sbcl.git

diff --git a/tests/stream.impure.lisp b/tests/stream.impure.lisp
index 7348bfe..fdc294b 100644
--- a/tests/stream.impure.lisp
+++ b/tests/stream.impure.lisp
@@ -125,5 +125,59 @@
       (assert (= 1 (file-position s))) ; unicode...
       (assert (file-position s 0))))
   (delete-file p))
+
+;;; CLOSING a non-new streams should not delete them, and superseded
+;;; files should be restored.
+(let ((test "test-file-for-close-should-not-delete"))
+  (macrolet ((test-mode (mode)
+	       `(progn
+		 (catch :close-test-exit
+		   (with-open-file (f test :direction :output :if-exists ,mode)
+		     (write-line "test" f)
+		     (throw :close-test-exit t)))
+		 (assert (and (probe-file test) ,mode)))))
+    (unwind-protect
+	 (progn
+	   (with-open-file (f test :direction :output)
+	     (write-line "test" f))
+	   (test-mode :append)
+	   (test-mode :overwrite)
+	   ;; FIXME: We really should recover supersede files as well, according to
+	   ;; CLOSE in CLHS, but at the moment we don't.
+	   ;; (test-mode :supersede)
+	   (test-mode :rename)
+	   (test-mode :rename-and-delete))
+      (when (probe-file test)
+	(delete-file test)))))
+
+;;; test for read-write invariance of signed bytes, from Bruno Haible
+;;; cmucl-imp 2004-09-06
+(defun bin-stream-test (&key (size (integer-length most-positive-fixnum))
+                        (type 'unsigned-byte) (file-name "stream-impure.tmp")
+                        (num-bytes 10)
+                        (bytes (if (eq type 'signed-byte)
+                                   (loop :repeat num-bytes :collect
+                                         (- (random (ash 1 size))
+                                            (ash 1 (1- size))))
+                                   (loop :repeat num-bytes :collect
+                                         (random (ash 1 size))))))
+  (with-open-file (foo file-name :direction :output :if-exists :supersede
+                       :element-type (list type size))
+    (dolist (byte bytes)
+      (write-byte byte foo)))
+  (unwind-protect
+       (with-open-file (foo file-name :direction :input
+                            :element-type (list type size))
+         (list (stream-element-type foo) (file-length foo) bytes
+               (loop :for byte :in bytes :for nb = (read-byte foo) :collect nb
+                     :unless (= nb byte) :do
+                     (flet ((by-out (sz by)
+                              (format nil "~v,'0,' ,4:b"
+                                      (+ sz (floor sz 4)) by)))
+                       (error "~& * [(~s ~s)] ~a != ~a~%" type size
+                              (by-out size byte) (by-out size nb))))))
+    (delete-file file-name)))
+(loop for size from 2 to 40 do (bin-stream-test :size size :type 'signed-byte))
+
 ;;; success
 (quit :unix-status 104)