diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/Makefile.am | 1 | ||||
| -rwxr-xr-x | tests/cp/fiemap-2 | 54 |
2 files changed, 55 insertions, 0 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am index 7855ac519..40d35ac7d 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -321,6 +321,7 @@ TESTS = \ cp/existing-perm-race \ cp/fail-perm \ cp/fiemap-perf \ + cp/fiemap-2 \ cp/file-perm-race \ cp/into-self \ cp/link \ diff --git a/tests/cp/fiemap-2 b/tests/cp/fiemap-2 new file mode 100755 index 000000000..e27f35521 --- /dev/null +++ b/tests/cp/fiemap-2 @@ -0,0 +1,54 @@ +#!/bin/sh +# Exercise a few more corners of the fiemap-copying code. + +# Copyright (C) 2011 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/>. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +print_ver_ cp + +# Require a fiemap-enabled FS. +df -T -t btrfs -t xfs -t ext4 -t ocfs2 . \ + || skip_ "this file system lacks FIEMAP support" + +# Exercise the code that handles a file ending in a hole. +printf x > k || framework_failure_ +dd bs=1k seek=128 of=k < /dev/null || framework_failure_ + +# The first time through the outer loop, the input file, K, ends with a hole. +# The second time through, we append a byte so that it does not. +for append in no yes; do + test $append = yes && printf y >> k + for i in always never; do + cp --sparse=$i k k2 || fail=1 + cmp k k2 || fail=1 + done +done + +# Ensure that --sparse=always can restore holes. +rm -f k +# Create a file starting with an "x", followed by 256K-1 0 bytes. +printf x > k || framework_failure_ +dd bs=1k seek=1 of=k count=255 < /dev/zero || framework_failure_ + +# cp should detect the all-zero blocks and convert some of them to holes. +# How many it detects/converts currently depends on io_blksize. +# Currently, on my F14/ext4 desktop, this K starts off with size 256KiB, +# (note that the K in the preceding test starts off with size 4KiB). +# cp from coreutils-8.9 with --sparse=always reduces the size to 32KiB. +cp --sparse=always k k2 || fail=1 +test $(stat -c %b k2) -lt $(stat -c %b k) || fail=1 + +Exit $fail |