On Sat, Jul 28, 2018 at 11:42 AM, zhangyi (F) <yi.zhang@xxxxxxxxxx> wrote:
> Introduce some exception test cases for fsck.overlay which runs on
> invalid/unnormal underlying dirs or invalid input parameters to test
> exception handling processes.
>
> Signed-off-by: zhangyi (F) <yi.zhang@xxxxxxxxxx>
> ---
> tests/overlay/062 | 236 ++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/overlay/062.out | 10 +++
> tests/overlay/group | 1 +
> 3 files changed, 247 insertions(+)
> create mode 100755 tests/overlay/062
> create mode 100644 tests/overlay/062.out
>
> diff --git a/tests/overlay/062 b/tests/overlay/062
> new file mode 100755
> index 0000000..31f856d
> --- /dev/null
> +++ b/tests/overlay/062
> @@ -0,0 +1,236 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2018 Huawei. All Rights Reserved.
> +#
> +# FS QA Test No. 062
> +#
> +# Exception test: test fsck.overlay runs on invalid underlying
> +# dirs or with invalid input options.
> +#
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/attr
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +_supported_fs overlay
> +_supported_os Linux
> +_require_scratch_nocheck
> +_require_attrs
> +_require_command "$FSCK_OVERLAY_PROG" fsck.overlay
> +_require_chattr i
> +
> +# remove all files from previous tests
> +_scratch_mkfs
> +
> +# Create a whiteout
> +make_whiteout()
> +{
> + for arg in $*; do
> + mknod $arg c 0 0
> + done
> +}
> +
> +# Create a redirect directory
> +make_redirect_dir()
> +{
> + local target=$1
> + local value=$2
> +
> + mkdir -p $target
> + $SETFATTR_PROG -n $OVL_XATTR_REDIRECT -v $value $target
> +}
> +
> +# Run fsck.overlay and check return value
> +run_fsck()
> +{
> + local expect=$1
> + local lowerdir=$2
> + local upperdir=$3
> + local workdir=$4
> + shift 4
> +
> + [[ -n $lowerdir ]] && idirs=$(echo -n "-o lowerdir=$lowerdir")
> + [[ -n $upperdir ]] && idirs=$(echo -n "$idirs -o upperdir=$upperdir")
> + [[ -n $workdir ]] && idirs=$(echo -n "$idirs -o workdir=$workdir")
> +
> + $FSCK_OVERLAY_PROG $idirs $* >> $seqres.full 2>&1
> + fsck_ret=$?
> +
> + [[ "$fsck_ret" == "$expect" ]] || \
> + echo "fsck return unexpected:$expect,$fsck_ret"
> +}
> +
> +# Create test directories
> +lowerdir=$OVL_BASE_SCRATCH_MNT/lower
> +lowerdir2=$OVL_BASE_SCRATCH_MNT/lower2
> +upperdir=$OVL_BASE_SCRATCH_MNT/upper
> +workdir=$OVL_BASE_SCRATCH_MNT/workdir
> +
> +make_test_dirs()
> +{
> + rm -rf $lowerdir $lowerdir2 $upperdir $workdir
> + mkdir -p $lowerdir $lowerdir2 $upperdir $workdir
> +}
> +
> +# Test incomplete underlying dirs, should fail
> +echo "+ Invalid input"
> +make_test_dirs
> +
> +none_dir=""
> +
> +run_fsck $FSCK_USAGE $lowerdir $none_dir $none_dir
> +run_fsck $FSCK_USAGE $lowerdir $upperdir $none_dir
> +run_fsck $FSCK_USAGE $none_dir $upperdir $workdir
Unless you use "$none_dir", 2 cases above are the same.
> +
> +
> +# Test invalid underlying dirs, should fail
> +echo "+ Invalid input(2)"
> +make_test_dirs
> +
> +invalid_dir=$OVL_BASE_SCRATCH_MNT/invalid_dir
> +
> +run_fsck $FSCK_ERROR $lowerdir $upperdir $invalid_dir
> +run_fsck $FSCK_ERROR $lowerdir $invalid_dir $workdir
> +run_fsck $FSCK_ERROR $invalid_dir $upperdir $workdir
> +
> +
> +# Test conflict input options, should fail
> +echo "+ Invalid input(3)"
> +make_test_dirs
> +
> +run_fsck $FSCK_USAGE $lowerdir $upperdir $workdir -pn
> +run_fsck $FSCK_USAGE $lowerdir $upperdir $workdir -yn
> +run_fsck $FSCK_USAGE $lowerdir $upperdir $workdir -py
> +run_fsck $FSCK_USAGE $lowerdir $upperdir $workdir -pyn
> +
> +
> +# Test upperdir and lowerdir belong to different base filesystems, should fail
You mean upper and work.
> +echo "+ Invalid workdir"
> +make_test_dirs
> +
> +test_workdir=$OVL_BASE_TEST_DIR/work
> +mkdir -p $test_workdir
> +run_fsck $FSCK_ERROR $lowerdir $upperdir $test_workdir
> +rm -rf $test_workdir
> +
> +
> +# Test upperdir is subdir of workdir and vice versa, should fail
> +echo "+ Invalid workdir(2)"
> +make_test_dirs
> +
> +test_workdir=$upperdir/work
> +test_upperdir=$workdir/upper
> +mkdir -p $test_workdir $test_upperdir
> +
> +run_fsck $FSCK_ERROR $lowerdir $upperdir $test_workdir
> +run_fsck $FSCK_ERROR $lowerdir $test_upperdir $workdir
> +
> +
> +# Test upper layer is read-only, should fail in "!no" mode, and should
> +# return the real consistent result in "no" mode.
> +echo "+ Upper read-only"
> +make_test_dirs
> +
> +test_lowerdir=$OVL_BASE_TEST_DIR/lower
> +mkdir -p $test_lowerdir
> +
> +# Let upper layer read-only
> +$MOUNT_PROG -o remount,ro $OVL_BASE_SCRATCH_MNT > /dev/null 2>&1
> +# Refuse to check read-only upper layer
> +run_fsck $FSCK_ERROR $test_lowerdir $upperdir $workdir
> +run_fsck $FSCK_ERROR $test_lowerdir $upperdir $workdir -p
> +run_fsck $FSCK_ERROR $test_lowerdir $upperdir $workdir -y
> +# Allow to use "no" mode scan read-only upper layer
> +run_fsck $FSCK_OK $test_lowerdir $upperdir $workdir -n
> +$MOUNT_PROG -o remount,rw $OVL_BASE_SCRATCH_MNT > /dev/null 2>&1
> +
> +# Make a simple inconsistency on the upper layer and expect return failure
> +make_whiteout $upperdir/invalid
> +$MOUNT_PROG -o remount,ro $OVL_BASE_SCRATCH_MNT > /dev/null 2>&1
> +run_fsck $FSCK_UNCORRECTED $test_lowerdir $upperdir $workdir -n
> +$MOUNT_PROG -o remount,rw $OVL_BASE_SCRATCH_MNT > /dev/null 2>&1
> +rm -rf $test_lowerdir
> +
> +
> +# Test lower layer is read-only, should sacn each layer and return
> +# the real consistent result.
> +echo "+ Lower read-only"
> +make_test_dirs
> +
> +test_lowerdir=$OVL_BASE_TEST_DIR/lower
> +mkdir -p $test_lowerdir
> +
> +# Let lower layer read-only
> +$MOUNT_PROG -o remount,ro $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +# Allow check read-only lower layers in all modes
> +run_fsck $FSCK_OK $test_lowerdir $upperdir $workdir -p
> +$MOUNT_PROG -o remount,rw $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +
> +# Make a simple inconsistency on the read-only lower layer and expect
> +# return failure.
> +make_whiteout $test_lowerdir/invalid
> +$MOUNT_PROG -o remount,ro $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +run_fsck $FSCK_UNCORRECTED $test_lowerdir $upperdir $workdir -p
> +$MOUNT_PROG -o remount,rw $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +rm -rf $test_lowerdir
> +
> +
> +# Test one of the lower layers is read-only, should sacn each layer and
> +# return the real consistent result.
> +echo "+ Lower read-only(2)"
> +make_test_dirs
> +
> +test_lowerdir=$OVL_BASE_TEST_DIR/lower
> +mkdir -p $test_lowerdir
> +
> +# Let lower layer read-only
> +$MOUNT_PROG -o remount,ro $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +# Make a simple inconsistency on the bottom read-write lower layer
> +# and expect return success (consistent middle read-only layer should
> +# not affect the result).
> +make_whiteout $lowerdir2/invalid
> +run_fsck $FSCK_NONDESTRUCT $test_lowerdir:$lowerdir2 $upperdir $workdir -p
> +$MOUNT_PROG -o remount,rw $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +
> +# Make a simple inconsistency on the middle read-only lower layer
> +# and expect return failure.
> +make_whiteout $test_lowerdir/invalid
> +$MOUNT_PROG -o remount,ro $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +run_fsck $FSCK_UNCORRECTED $test_lowerdir:$lowerdir2 $upperdir $workdir -p
> +$MOUNT_PROG -o remount,rw $OVL_BASE_TEST_DIR > /dev/null 2>&1
> +rm -rf $test_lowerdir
> +
> +
> +# Test encounter error when try to fix some inconsistency, should fail
> +echo "+ Encounter error"
> +make_test_dirs
> +
> +# Make a simple inconsistency and set immutable flag to simulate fix error
> +make_redirect_dir $upperdir/testdir "invalid"
> +
> +$CHATTR_PROG +i $upperdir/testdir
> +run_fsck $(($FSCK_UNCORRECTED+$FSCK_ERROR)) $lowerdir $upperdir $workdir -p
> +$CHATTR_PROG -i $upperdir/testdir
> +
Please clear immutable flag also in cleanup().
Thanks,
Amir.
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