X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Fstream.impure.lisp;h=d01b63e6a5ab1a9d97da4538634444f7790bc318;hb=87cd7d9848d9beddbf74e9d56a0c0aea6e189ead;hp=64d589cd6f7c81549629fc843d7001a016ba0601;hpb=43ed30b023d8ea5d0cd9c6a8928b4169aa0275ef;p=sbcl.git

diff --git a/tests/stream.impure.lisp b/tests/stream.impure.lisp
index 64d589c..d01b63e 100644
--- a/tests/stream.impure.lisp
+++ b/tests/stream.impure.lisp
@@ -467,4 +467,24 @@
     (assert (equal copy string)))
   (delete-file "read-sequence-character-test-data.tmp"))
 
+;;; ANSI-STREAM-OUTPUT-STREAM-P used to assume that a SYNONYM-STREAM's
+;;; target was an ANSI stream, but it could be a user-defined stream,
+;;; e.g., a SLIME stream.
+(defclass user-output-stream (fundamental-output-stream)
+  ())
+
+(let ((*stream* (make-instance 'user-output-stream)))
+  (declare (special *stream*))
+  (with-open-stream (stream (make-synonym-stream '*stream*))
+    (assert (output-stream-p stream))))
+
+(defclass user-input-stream (fundamental-input-stream)
+  ())
+
+(let ((*stream* (make-instance 'user-input-stream)))
+  (declare (special *stream*))
+  (with-open-stream (stream (make-synonym-stream '*stream*))
+    (assert (input-stream-p stream))))
+
+
 ;;; success