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- Log ----------------------------------------------------------------- commit 33a91f6afe5d68ea41a649db6e40d93d5896fb45 Author: Raymond Toy toy.raymond@gmail.com Date: Fri Aug 1 00:01:38 2014 -0700

Add tests for CLEAR-OUTPUT.

diff --git a/tests/fd-streams.lisp b/tests/fd-streams.lisp new file mode 100644 index 0000000..263ce1f --- /dev/null +++ b/tests/fd-streams.lisp @@ -0,0 +1,36 @@ +;;;; -*- Lisp -*- + +(defpackage fd-streams-tests + (:use #:common-lisp #:lisp-unit)) + +(in-package #:fd-streams-tests) + +(defparameter *test-path* + (merge-pathnames (make-pathname :name :unspecific :type :unspecific + :version :unspecific) + *load-truename*) + "Directory for temporary test files.") + +(defparameter *test-file* + (merge-pathnames #p"test-data.tmp" *test-path*)) + +(eval-when (:load-toplevel) + (ensure-directories-exist *test-path* :verbose t)) + +(define-test clear-output-1 + (:tag :trac) + (assert-eql + 0 + (unwind-protect + (let ((s (open *test-file* + :direction :output + :if-exists :supersede))) + ;; Write a character to the (fully buffered) output + ;; stream. Clear the output and close the file. Nothing + ;; should have been written to the file. + (write-char #\a s) + (clear-output s) + (close s) + (setf s (open *test-file*)) + (file-length s)) + (delete-file *test-file*)))) diff --git a/tests/gray-streams.lisp b/tests/gray-streams.lisp new file mode 100644 index 0000000..6308882 --- /dev/null +++ b/tests/gray-streams.lisp @@ -0,0 +1,39 @@ +;;;; -*- Lisp -*- + +(require :gray-streams) + +(defpackage gray-streams-tests + (:use #:common-lisp #:lisp-unit)) + +(in-package #:gray-streams-tests) + +(defparameter *test-path* + (merge-pathnames (make-pathname :name :unspecific :type :unspecific + :version :unspecific) + *load-truename*) + "Directory for temporary test files.") + +(defparameter *test-file* + (merge-pathnames #p"test-data.tmp" *test-path*)) + +(eval-when (:load-toplevel) + (ensure-directories-exist *test-path* :verbose t)) + +(define-test clear-output-1 + (:tag :trac) + ;; Create a Gray stream and make sure that clear-output works. + (assert-eql + 0 + (unwind-protect + (let ((s (open *test-file* + :direction :output + :if-exists :supersede + :class 'lisp::character-output-stream))) + (write-char #\a s) + (clear-output s) + (close s) + (setf s (open *test-file*)) + (file-length s)) + (delete-file *test-file*)))) + + \ No newline at end of file

commit b6373368fc738f43a0662545956a444da394425f Author: Raymond Toy toy.raymond@gmail.com Date: Thu Jul 31 23:52:20 2014 -0700

Implement CLEAR-OUTPUT for FD-STREAM's.

This appears to be a very old bug where clear-output didn't clear the output for fd-streams.

diff --git a/src/code/fd-stream.lisp b/src/code/fd-stream.lisp index 80e2941..470dfe2 100644 --- a/src/code/fd-stream.lisp +++ b/src/code/fd-stream.lisp @@ -1682,7 +1682,9 @@ nil (values (truncate size (fd-stream-element-size stream)))))) (:file-position - (fd-stream-file-position stream arg1)))) + (fd-stream-file-position stream arg1)) + (:clear-output + (setf (fd-stream-obuf-tail stream) 0))))

;;; FD-STREAM-FILE-POSITION -- internal.

-----------------------------------------------------------------------

Summary of changes: src/code/fd-stream.lisp | 4 +++- tests/fd-streams.lisp | 36 ++++++++++++++++++++++++++++++++++++ tests/gray-streams.lisp | 39 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 78 insertions(+), 1 deletion(-) create mode 100644 tests/fd-streams.lisp create mode 100644 tests/gray-streams.lisp

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