(while (not (eof-object? (read-char port))))
(= 8 (port-column port))))))
+;;;
+;;; seek
+;;;
+
+(with-test-prefix "seek"
+
+ (with-test-prefix "file port"
+
+ (pass-if "SEEK_CUR"
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "abcde" port)))
+ (let ((port (open-file (test-file) "r")))
+ (read-char port)
+ (seek port 2 SEEK_CUR)
+ (eqv? #\d (read-char port))))
+
+ (pass-if "SEEK_SET"
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "abcde" port)))
+ (let ((port (open-file (test-file) "r")))
+ (read-char port)
+ (seek port 3 SEEK_SET)
+ (eqv? #\d (read-char port))))
+
+ (pass-if "SEEK_END"
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "abcde" port)))
+ (let ((port (open-file (test-file) "r")))
+ (read-char port)
+ (seek port -2 SEEK_END)
+ (eqv? #\d (read-char port))))))
+
;;;
;;; truncate-file
;;;
(with-test-prefix "truncate-file"
+ (pass-if-exception "flonum file" exception:wrong-type-arg
+ (truncate-file 1.0 123))
+
+ (pass-if-exception "frac file" exception:wrong-type-arg
+ (truncate-file 7/3 123))
+
(with-test-prefix "filename"
+ (pass-if-exception "flonum length" exception:wrong-type-arg
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "hello" port)))
+ (truncate-file (test-file) 1.0))
+
(pass-if "shorten"
(call-with-output-file (test-file)
(lambda (port)
(display "hello" port)))
(truncate-file (test-file) 1)
- (eqv? 1 (stat:size (stat (test-file))))))
+ (eqv? 1 (stat:size (stat (test-file)))))
+
+ (pass-if-exception "shorten to current pos" exception:miscellaneous-error
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "hello" port)))
+ (truncate-file (test-file))))
(with-test-prefix "file descriptor"
(let ((fd (open-fdes (test-file) O_RDWR)))
(truncate-file fd 1)
(close-fdes fd))
+ (eqv? 1 (stat:size (stat (test-file)))))
+
+ (pass-if "shorten to current pos"
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "hello" port)))
+ (let ((fd (open-fdes (test-file) O_RDWR)))
+ (seek fd 1 SEEK_SET)
+ (truncate-file fd)
+ (close-fdes fd))
(eqv? 1 (stat:size (stat (test-file))))))
(with-test-prefix "file port"
(display "hello" port)))
(let ((port (open-file (test-file) "r+")))
(truncate-file port 1))
+ (eqv? 1 (stat:size (stat (test-file)))))
+
+ (pass-if "shorten to current pos"
+ (call-with-output-file (test-file)
+ (lambda (port)
+ (display "hello" port)))
+ (let ((port (open-file (test-file) "r+")))
+ (read-char port)
+ (truncate-file port))
(eqv? 1 (stat:size (stat (test-file)))))))