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author | Jim Meyering <jim@meyering.net> | 2005-11-04 09:53:17 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2005-11-04 09:53:17 +0000 |
commit | 8227fec80a57790bf9a26746f49b252fdf16d167 (patch) | |
tree | 8ab6e5f6f5f44abe2940198702e664b5d6e9a7a6 /tests/du/2g | |
parent | 149f1bbd107c3697a761217669c5ee4b63e092be (diff) | |
download | coreutils-8227fec80a57790bf9a26746f49b252fdf16d167.tar.xz |
Test for a bug that bites at least on AIX 5.1 systems.
Diffstat (limited to 'tests/du/2g')
-rwxr-xr-x | tests/du/2g | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/tests/du/2g b/tests/du/2g new file mode 100755 index 000000000..d04b6c524 --- /dev/null +++ b/tests/du/2g @@ -0,0 +1,76 @@ +#!/bin/sh +# Ensure that du can handle a 2GB file (i.e., a file of size 2^31 bytes) +# Before coreutils-5.93, on systems with a signed, 32-bit stat.st_nblocks +# one of du's computations would overflow. + +if test "$VERBOSE" = yes; then + set -x + du --version +fi + +. $srcdir/../envvar-check + +# Creating a 2GB file counts as `expensive'. +. $srcdir/../expensive + +pwd=`pwd` +t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$ +trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0 +trap '(exit $?); exit $?' 1 2 13 15 + +framework_failure=0 +mkdir -p $tmp || framework_failure=1 +cd $tmp || framework_failure=1 + +if test $framework_failure = 1; then + echo "$0: failure in testing framework" 1>&2 + (exit 1); exit 1 +fi + +fail=0 + +# Get number of free kilobytes on current partition, so we can +# skip this test if there is insufficient free space. + +# This technique relies on the fact that the `Available' kilobyte +# count is the number just before the one with a trailing `%'. +free_kb=`df -kP .|tail -1|sed 's/ [0-9][0-9]*%.*//;s/ *$//;s/.* //'` +case "$free_kb" in + [0-9]*) ;; + *) echo "invalid size from df: $free_kb" 1>&2; (exit 77); exit 77;; +esac + +# Require about 3GB free. +min_kb=3000000 +test $min_kb -lt $free_kb || +{ + echo "$0: skipping this test:" + echo "too little free space on current partition: $free_kb (need $min_kb KB)" \ + 1>&2; + (exit 77); exit 77 +} + +big=big +rm -f $big +test -t 1 || printf 'creating a 2GB file...\n' +for i in `seq 100`; do + # Note: 2147483648 == 2^31. Print floor(2^31/100) per iteration. + printf %21474836s x >> $big || fail=1 + # On the final iteration, append the remaining 48 bytes. + test $i = 100 && { printf %48s x >> $big || fail=1; } + test -t 1 && printf 'creating a 2GB file: %d%% complete\r' $i +done +echo + +du -k $big > out1 || fail=1 +rm -f $big +sed 's/^2[0-9][0-9][0-9][0-9][0-9][0-9] '$big'$/~2M/' out1 > out + +cat <<\EOF > exp || fail=1 +~2M +EOF + +cmp out exp || fail=1 +test $fail = 1 && diff out exp 2> /dev/null + +(exit $fail); exit $fail |