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coreutils/tests/dd/misc
Jim Meyering e43d30eab3 tests: convert nearly all ... expressions to $(...)
Exempt init.sh because it runs before we're assured to have a
shell that groks $(...).  Exempt *.mk because "$" would have to
be doubled, and besides, any `...` expression in a .mk file is
almost certainly evaluated before init.sh is run.  Finally, also
exempt the perl-based tests, because perl's `...` cannot be
converted to $(...).  Do that by running this command:

git grep -l '`.*`' tests \
  | grep -Ev 'init\.sh|\.mk$' | xargs grep -Lw perl \
  | xargs perl -pi -e 's/`(.*?)`/\$($1)/g'

One minor fix-up change was required after that, due to how
quoting differs:
diff --git a/tests/chmod/equals b/tests/chmod/equals
-    expected_perms=$(eval 'echo \$expected_'$dest)
+    expected_perms=$(eval 'echo $expected_'$dest)

Another was to make these required quoting adjustments:
diff --git a/tests/misc/stty b/tests/misc/stty
...
-  rev=$(eval echo "\\\$REV_$opt")
+  rev=$(eval echo "\$REV_$opt")
...
-      rev1=$(eval echo "\\\$REV_$opt1")
-      rev2=$(eval echo "\\\$REV_$opt2")
+      rev1=$(eval echo "\$REV_$opt1")
+      rev2=$(eval echo "\$REV_$opt2")

Also, transform two files that were needlessly excluded above:
(both use perl, but are mostly bourne shell)

  perl -pi -e 's/`(.*?)`/\$($1)/g' \
    tests/du/long-from-unreadable tests/init.cfg
2012-04-04 12:20:56 +02:00

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#!/bin/sh
# Ensure dd treats '--' properly.
# Also test some flag values.
# Copyright (C) 1999-2012 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_ dd
tmp_in=dd-in
tmp_in2=dd-in2
tmp_sym=dd-sym
tmp_out=dd-out
warn=0
echo data > $tmp_in || framework_failure_
ln $tmp_in $tmp_in2 || framework_failure_
ln -s $tmp_in $tmp_sym || framework_failure_
dd if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
compare $tmp_in $tmp_out || fail=1
rm $tmp_out
dd -- if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
compare $tmp_in $tmp_out || fail=1
if dd oflag=append if=$tmp_in of=$tmp_out 2> /dev/null; then
compare $tmp_in $tmp_out || fail=1
fi
case $(cat /dev/stdin <$tmp_in 2>/dev/null) in
(data)
rm -f $tmp_out
dd if=/dev/stdin of=$tmp_out <$tmp_in || fail=1
compare $tmp_in $tmp_out || fail=1
esac
if dd iflag=nofollow if=$tmp_in count=0 2> /dev/null; then
dd iflag=nofollow if=$tmp_sym count=0 2> /dev/null && fail=1
fi
if dd iflag=directory if=. count=0 2> /dev/null; then
dd iflag=directory count=0 <. 2> /dev/null || fail=1
dd iflag=directory count=0 <$tmp_in 2> /dev/null && fail=1
fi
old_ls=$(ls -u --full-time $tmp_in)
sleep 1
if dd iflag=noatime if=$tmp_in of=$tmp_out 2> /dev/null; then
new_ls=$(ls -u --full-time $tmp_in)
if test "x$old_ls" != "x$new_ls"; then
cat >&2 <<EOF
=================================================================
$0: WARNING!!!
This operating system has the O_NOATIME file status flag,
but it is silently ignored in some cases.
Therefore, dd options like iflag=noatime may be silently ignored.
=================================================================
EOF
warn=77
fi
fi
if dd oflag=nolinks if=$tmp_in of=$tmp_out 2> /dev/null; then
dd iflag=nolinks if=$tmp_in > /dev/null 2>&1 && fail=1
dd iflag=nolinks < $tmp_in > /dev/null 2>&1 && fail=1
dd oflag=nolinks < $tmp_in > $tmp_out 2>&1 || fail=1
fi
outbytes=$(echo x | dd bs=3 ibs=10 obs=10 conv=sync 2>/dev/null | wc -c)
test "$outbytes" -eq 3 || fail=1
# A delay is required to trigger a failure.
# There might be some missed failures but it's unlikely.
(echo a; sleep .1; echo b) \
| env LC_ALL=C dd bs=4 status=noxfer iflag=fullblock >out 2>err || fail=1
printf 'a\nb\n' > out_ok || framework_failure_
echo "1+0 records in
1+0 records out" > err_ok || framework_failure_
compare out_ok out || fail=1
compare err_ok err || fail=1
test $fail -eq 0 && fail=$warn
Exit $fail