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| author | Pádraig Brady <P@draigBrady.com> | 2009-03-11 11:39:33 +0000 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2009-03-11 14:27:39 +0000 |
| commit | 1644e589050ddfce4bbd5ebbe10a4e041499e386 (patch) | |
| tree | 0f3323489556bf303057f25b6ca87a5533873e4a /tests | |
| parent | 55efc5f3ee485b3e31a91c331f07c89aeccc4e89 (diff) | |
| download | coreutils-1644e589050ddfce4bbd5ebbe10a4e041499e386.tar.xz | |
cat: Fix immediate output of processed data
Introduced by commit 790892db, 2006-06-08 "Ensure that cat works ...".
* NEWS: Mention the bugfix.
* src/cat.c (cat): Fix the typo which stopped the writing
of processed data before a blocking read() is done.
* tests/misc/cat-buf: Add to ensure processed data is not buffered.
* tests/Makefile.am: Reference the new test.
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/Makefile.am | 1 | ||||
| -rwxr-xr-x | tests/misc/cat-buf | 41 |
2 files changed, 42 insertions, 0 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am index 07e947341..10be0c60f 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -149,6 +149,7 @@ TESTS = \ misc/wc-files0-from \ misc/wc-files0 \ misc/cat-proc \ + misc/cat-buf \ misc/base64 \ misc/basename \ misc/close-stdout \ diff --git a/tests/misc/cat-buf b/tests/misc/cat-buf new file mode 100755 index 000000000..fb9ae881e --- /dev/null +++ b/tests/misc/cat-buf @@ -0,0 +1,41 @@ +#!/bin/sh +# Ensure that cat outputs processed data immediately. + +# Copyright (C) 2009 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +if test "$VERBOSE" = yes; then + set -x + cat --version +fi + +. $srcdir/test-lib.sh + +# Use a fifo rather than a pipe in the tests below +# so that the producer (cat) will wait until the +# consumer (dd) opens the fifo therefore increasing +# the chance that dd will read the data from each +# write separately. +mkfifo fifo || framework_failure + +echo '1' > exp + +dd count=1 if=fifo > out 2> err& +(echo '1'; sleep .2; echo '2') | cat -v > fifo +wait #for dd to complete + +compare out exp || fail=1 + +Exit $fail |