message

[sbcl.git] / tests / stream.pure.lisp

diff --git a/tests/stream.pure.lisp b/tests/stream.pure.lisp
index 94da3af..6474758 100644 (file)
--- a/tests/stream.pure.lisp
+++ b/tests/stream.pure.lisp
@@ -242,3 +242,30 @@
 
 (with-open-file (s "/dev/null" :element-type '(signed-byte 48))
   (assert (eq :eof (read-byte s nil :eof))))
+
+(let* ((is (make-string-input-stream "foo"))
+       (os (make-string-output-stream))
+       (s (make-echo-stream is os))
+       (sequence (copy-seq "abcdef")))
+  (assert (= (read-sequence sequence s) 3))
+  (assert (string= sequence "foodef"))
+  (assert (string= (get-output-stream-string os) "foo")))
+
+(let* ((is (make-string-input-stream "foo"))
+       (os (make-string-output-stream))
+       (s (make-echo-stream is os))
+       (sequence (copy-seq "abcdef")))
+  (assert (char= #\f (read-char s)))
+  (assert (= (read-sequence sequence s) 2))
+  (assert (string= sequence "oocdef"))
+  (assert (string= (get-output-stream-string os) "foo")))
+
+(let* ((is (make-string-input-stream "foo"))
+       (os (make-string-output-stream))
+       (s (make-echo-stream is os))
+       (sequence (copy-seq "abcdef")))
+  (assert (char= #\f (read-char s)))
+  (unread-char #\f s)
+  (assert (= (read-sequence sequence s) 3))
+  (assert (string= sequence "foodef"))
+  (assert (string= (get-output-stream-string os) "foo")))