1.0.19.22: fix bug #425

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

diff --git a/tests/stream.impure.lisp b/tests/stream.impure.lisp
index bc069b7..851990f 100644 (file)
--- a/tests/stream.impure.lisp
+++ b/tests/stream.impure.lisp
@@ -415,7 +415,7 @@
         (assert (= (type-error-datum condition) -1))
         (assert (subtypep (type-error-expected-type condition)
                           '(unsigned-byte 8))))))
-  
+
   (delete-file pathname))
 
 ;;; writing looong lines. takes way too long and way too much space
@@ -442,4 +442,79 @@
       (when (probe-file test)
         (delete-file test)))))
 
+;;; read-sequence misreported the amount read and lost position
+(let ((string (make-array (* 3 sb-impl::+ansi-stream-in-buffer-length+)
+                          :element-type 'character)))
+  (dotimes (i (length string))
+    (setf (char string i) (code-char (mod i char-code-limit))))
+  (with-open-file (f "read-sequence-character-test-data.tmp"
+                     :if-exists :supersede
+                     :direction :output
+                     :external-format :utf-8)
+    (write-sequence string f))
+  (let ((copy
+         (with-open-file (f "read-sequence-character-test-data.tmp"
+                            :if-does-not-exist :error
+                            :direction :input
+                            :external-format :utf-8)
+           (let ((buffer (make-array 128 :element-type 'character))
+                 (total 0))
+             (with-output-to-string (datum)
+               (loop for n-read = (read-sequence buffer f)
+                     do (write-sequence buffer datum :start 0 :end n-read)
+                        (assert (<= (incf total n-read) (length string)))
+                     while (and (= n-read 128))))))))
+    (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))))
+
+;;; READ-LINE on ANSI-STREAM did not return T for the last line
+;;; (reported by Yoshinori Tahara)
+(let ((pathname "test-read-line-eol"))
+  (with-open-file (out pathname :direction :output :if-exists :supersede)
+    (format out "a~%b"))
+  (let ((result (with-open-file (in pathname)
+                  (list (multiple-value-list (read-line in nil nil))
+                        (multiple-value-list (read-line in nil nil))
+                        (multiple-value-list (read-line in nil nil))))))
+    (delete-file pathname)
+    (assert (equal result '(("a" nil) ("b" t) (nil t))))))
+
+;;; READ-LINE used to work on closed streams because input buffers were left in place
+(with-test (:name :bug-425)
+  ;; Normal close
+  (let ((f (open "stream.impure.lisp" :direction :input)))
+    (assert (stringp (read-line f)))
+    (close f)
+    (assert (eq :fii
+                (handler-case
+                    (read-line f)
+                  (sb-int:closed-stream-error () :fii)))))
+  ;; Abort
+  (let ((f (open "stream.impure.lisp" :direction :input)))
+    (assert (stringp (read-line f nil nil)))
+    (close f :abort t)
+    (assert (eq :faa
+                (handler-case
+                    (read-line f)
+                  (sb-int:closed-stream-error () :faa))))))
+\f
 ;;; success