+;;; 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))))))
+
+(with-test (:name :regression-1.0.12.22)
+ (with-open-file (s "stream.impure.lisp" :direction :input)
+ (let ((buffer (make-string 20)))
+ (assert (= 2 (read-sequence buffer s :start 0 :end 2)))
+ (assert (= 3 (read-sequence buffer s :start 2 :end 3)))
+ (file-position s :end)
+ (assert (= 3 (read-sequence buffer s :start 3))))))
+
+;;; In 1.0.27 (and also 0.9.16; presumably in between, too), binary
+;;; input operations on a bivalent stream did something bad after
+;;; unread-char: READ-BYTE would return the character, and
+;;; READ-SEQUENCE into a byte buffer would lose when attempting to
+;;; store the character in the vector.
+(let ((pathname "bivalent-stream-unread-char-test.tmp"))
+ (with-open-file (s pathname
+ :element-type :default
+ :direction :io :if-exists :rename)
+ (write-char #\a s)
+ (file-position s :start)
+ (unread-char (read-char s) s)
+ (assert (integerp (read-byte s))))
+ (delete-file pathname))
+
+(let ((pathname "bivalent-stream-unread-char-test.tmp"))
+ (with-open-file (s pathname
+ :element-type :default
+ :direction :io :if-exists :rename)
+ (write-char #\a s)
+ (file-position s :start)
+ (unread-char (read-char s) s)
+ (assert (let ((buffer (make-array 10 :element-type '(unsigned-byte 8))))
+ (read-sequence buffer s))))
+ (delete-file pathname))
+
+#+sb-unicode
+(let ((pathname "bivalent-stream-unread-char-test.tmp"))
+ (with-open-file (s pathname
+ :element-type :default
+ :direction :io :if-exists :rename
+ :external-format :utf8)
+ (write-char (code-char 192) s)
+ (file-position s :start)
+ (unread-char (read-char s) s)
+ (assert (integerp (read-byte s))))
+ (delete-file pathname))
+
+#+sb-unicode
+(let ((pathname "bivalent-stream-unread-char-test.tmp"))
+ (with-open-file (s pathname
+ :element-type :default
+ :direction :io :if-exists :rename
+ :external-format :utf8)
+ (write-char (code-char 192) s)
+ (file-position s :start)
+ (unread-char (read-char s) s)
+ (assert (let ((buffer (make-array 10 :element-type '(unsigned-byte 8))))
+ (read-sequence buffer s))))
+ (delete-file pathname))
+
+(with-test (:name :delete-file-on-streams)
+ (with-open-file (f "delete-file-on-stream-test.tmp"
+ :direction :io)
+ (delete-file f)
+ #-win32
+ (progn
+ (write-line "still open" f)
+ (file-position f :start)
+ (assert (equal "still open" (read-line f)))))
+ (assert (not (probe-file "delete-file-on-stream-test.tmp"))))
+\f
+;;; READ-CHAR-NO-HANG on bivalent streams (as returned by RUN-PROGRAM)
+;;; was wrong. CSR managed to promote the wrongness to all streams in
+;;; the 1.0.32.x series, breaking slime instantly.
+(with-test (:name :read-char-no-hang-after-unread-char)
+ (let* ((process (run-program "/bin/sh" '("-c" "echo a && sleep 10")
+ :output :stream :wait nil))
+ (stream (process-output process))
+ (char (read-char stream)))
+ (assert (char= char #\a))
+ (unread-char char stream)
+ (assert (char= (read-char stream) #\a))
+ (assert (char= (read-char stream) #\Newline))
+ (let ((time (get-universal-time)))
+ ;; no input, not yet known to be at EOF: should return
+ ;; immediately
+ (read-char-no-hang stream)
+ (assert (< (- (get-universal-time) time) 2)))))
+