Re: [PATCH v2 3/3] btrfs-progs: test/mkfs: Test if the minimal device size is valid

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On 2017年10月27日 01:45, David Sterba wrote:
> On Mon, Oct 16, 2017 at 04:22:58PM +0800, Qu Wenruo wrote:
>> New test case to test if the minimal device size given by "mkfs.btrfs"
>> failure case is valid.
>>
>> Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
>> ---
>> v2:
>>   Nothing
>> ---
>>  tests/common                             | 57 +++++++++++++++++++++++++++++++-
> 
> Please split this change from the patch.

I'll split and resend the patches after split.

However, as I mentioned in latest mkfs --rootdir rework patchset set,
all my later patches more or less relies on them.

Since some of the patches are merged into devel, should I rebase the
incoming patches?
Or just leave them as is?

Thanks,
Qu
> 
>>  tests/mkfs-tests/010-small-image/test.sh | 51 ++++++++++++++++++++++++++++
>>  2 files changed, 107 insertions(+), 1 deletion(-)
>>  create mode 100755 tests/mkfs-tests/010-small-image/test.sh
>>
>> diff --git a/tests/common b/tests/common
>> index eb525a4d02c5..e026cc2f4d30 100644
>> --- a/tests/common
>> +++ b/tests/common
>> @@ -236,6 +236,57 @@ run_mustfail()
>>  	fi
>>  }
>>  
>> +run_mustfail_stdout()
>> +{
>> +	local spec
>> +	local ins
>> +	local cmd
>> +	local msg
>> +	local ret
>> +
>> +	# We don't use pipefail to avoid disturbing other script, so here we
>> +	# use temporary output file.
>> +	# So it doesn't support pipeline in the @cmd
> 
> This would be good as the function comment, plus the 1st argument
> requirement, simlar to run_mustfail.
> 
>> +	local tmp_output
>> +
>> +	tmp_output=$(mktemp --tmpdir btrfs-progs-test--mustfail-stdtout.XXXXXX)
>> +
>> +	msg="$1"
>> +	shift
>> +
>> +	if _is_file_or_command "$msg"; then
>> +		echo "ASSERTION FAIL: 1st argument of run_mustfail_stdout must be a message"
>> +		exit 1
>> +	fi
>> +
>> +	ins=$(_get_spec_ins "$@")
>> +	spec=$(($ins-1))
>> +	cmd=$(eval echo "\${$spec}")
>> +	spec=$(_cmd_spec "${@:$spec}")
>> +	set -- "${@:1:$(($ins-1))}" $spec "${@: $ins}"
>> +	echo "############### $@" >> "$RESULTS" 2>&1
>> +	if [[ $TEST_LOG =~ tty ]]; then echo "CMD(mustfail): $@" > /dev/tty; fi
>> +	if [ "$1" = 'root_helper' ]; then
>> +		"$@" 2>&1 > "$tmp_output"
>> +	else
>> +		$INSTRUMENT "$@" 2>&1 > "$tmp_output"
>> +	fi
>> +	ret=$?
>> +
>> +	cat "$tmp_output" >> "$RESULTS"
>> +	cat "$tmp_output"
>> +	rm "$tmp_output"
>> +
>> +	if [ "$ret" != 0 ]; then
>> +		echo "failed (expected): $@" >> "$RESULTS"
>> +		return 0
>> +	else
>> +		echo "succeeded (unexpected!): $@" >> "$RESULTS"
>> +		_fail "unexpected success: $msg"
>> +		return 1
>> +	fi
>> +}
>> +
>>  check_prereq()
>>  {
>>  	if ! [ -f "$TOP/$1" ]; then
>> @@ -389,7 +440,11 @@ prepare_test_dev()
>>  	# num[K/M/G/T...]
>>  	local size="$1"
>>  
>> -	[[ "$TEST_DEV" ]] && return
>> +	# Still truncate it to new size
>> +	if [[ "$TEST_DEV" ]]; then
>> +		truncate -s "$size" "$TEST_DEV"
> 
> You use $size before it gets checked that's not empty a few lines below.
> 
>> +		return;
>> +	fi
>>  	[[ "$size" ]] || size='2G'
>>  
>>  	echo "\$TEST_DEV not given, use $TOP/test/test.img as fallback" >> \
>> diff --git a/tests/mkfs-tests/010-small-image/test.sh b/tests/mkfs-tests/010-small-image/test.sh
>> new file mode 100755
>> index 000000000000..2ed379f9b66f
>> --- /dev/null
>> +++ b/tests/mkfs-tests/010-small-image/test.sh
>> @@ -0,0 +1,51 @@
>> +#!/bin/bash
>> +# test if the reported minimal size of mkfs.btrfs is valid
>> +
>> +source $TOP/tests/common
>> +
>> +check_prereq mkfs.btrfs
>> +check_prereq btrfs
>> +
>> +setup_root_helper
>> +
>> +pagesize=$(getconf PAGESIZE)
> 
> Not used?
> 
>> +
>> +do_test()
>> +{
>> +	# Well, 1M small enough to fail, we just use the output
>> +	# to get the minimal device size
>> +	prepare_test_dev 1M
>> +	output=$(run_mustfail_stdout "mkfs.btrfs for small image" \
>> +		 $TOP/mkfs.btrfs -f $@ "$TEST_DEV")
>> +	good_size=$(echo $output | grep -oP "(?<=is )\d+")
>> +
>> +	prepare_test_dev "$good_size"
>> +	run_check $TOP/mkfs.btrfs -f $@ "$TEST_DEV"
>> +	run_check $SUDO_HELPER mount $TEST_DEV $TEST_MNT
>> +	run_check $SUDO_HELPER umount $TEST_MNT
> 
> Please add quotes around all variables that could come from an external
> source (TEST_MNT, TEST_DEV, TOP).
> 
>> +}
>> +
>> +do_test -n 4k	-m single	-d single
>> +do_test -n 4k	-m single	-d dup
>> +do_test -n 4k	-m dup		-d single
>> +do_test -n 4k	-m dup		-d dup
>> +
>> +do_test -n 8k	-m single	-d single
>> +do_test -n 8k	-m single	-d dup
>> +do_test -n 8k	-m dup		-d single
>> +do_test -n 8k	-m dup		-d dup
>> +
>> +do_test -n 16k	-m single	-d single
>> +do_test -n 16k	-m single	-d dup
>> +do_test -n 16k	-m dup		-d single
>> +do_test -n 16k	-m dup		-d dup
>> +
>> +do_test -n 32k	-m single	-d single
>> +do_test -n 32k	-m single	-d dup
>> +do_test -n 32k	-m dup		-d single
>> +do_test -n 32k	-m dup		-d dup
>> +
>> +do_test -n 64k	-m single	-d single
>> +do_test -n 64k	-m single	-d dup
>> +do_test -n 64k	-m dup		-d single
>> +do_test -n 64k	-m dup		-d dup
> --
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