[PATCH][btrfs-progs] populate fs with small dataset for convert-tests

[PATCH][btrfs-progs] populate fs with small dataset for convert-tests

[Lakshmipathi.G]

Signed-off-by: Lakshmipathi.G <Lakshmipathi.G@giis.co.in>
---
 tests/convert-tests.sh | 84 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 80 insertions(+), 4 deletions(-)

diff --git a/tests/convert-tests.sh b/tests/convert-tests.sh
index 0bfb41f..c1f3de0 100644
--- a/tests/convert-tests.sh
+++ b/tests/convert-tests.sh
@@ -10,16 +10,91 @@ LANG=C
 SCRIPT_DIR=$(dirname $(readlink -f $0))
 TOP=$(readlink -f $SCRIPT_DIR/../)
 RESULTS="$TOP/tests/convert-tests-results.txt"
+DATASET_SIZE="50" # how many files to create.
 
 source $TOP/tests/common
 
 rm -f $RESULTS
 
 setup_root_helper
-prepare_test_dev 256M
+prepare_test_dev 512M
 
 CHECKSUMTMP=$(mktemp --tmpdir btrfs-progs-convert.XXXXXXXXXX)
 
+generate_dataset() {
+
+	dataset_type="$1"
+	dirpath=$TEST_MNT/$dataset_type
+	mkdir -p $dirpath
+
+	case $dataset_type in
+		small)
+			for num in $(seq 1 $DATASET_SIZE);do
+				run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
+				count=1 1>/dev/null 2>&1
+			done
+			;;
+
+		hardlink)
+			for num in $(seq 1 $DATASET_SIZE);do
+				run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
+				run_check $SUDO_HELPER ln $dirpath/$dataset_type.$num $dirpath/hlink.$num
+			done
+			;;
+
+		symlink)
+			for num in $(seq 1 $DATASET_SIZE);do
+				run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
+				run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/slink.$num
+			done
+			;;
+
+		brokenlink)
+			for num in $(seq 1 $DATASET_SIZE);do
+				run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/blink.$num
+			done
+			;;
+
+		perm)
+			for modes in $(seq 1 7777);do
+				if [[ "$modes" == *9* ]] || [[ "$modes" == *8* ]]
+				then
+					continue;
+				else
+					run_check $SUDO_HELPER touch $dirpath/$dataset_type.$modes
+					run_check $SUDO_HELPER chmod $modes $dirpath/$dataset_type.$modes
+				fi
+			done
+			;;
+
+		sparse)
+			for num in $(seq 1 $DATASET_SIZE);do
+				run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
+				count=1 1>/dev/null 2>&1
+				run_check $SUDO_HELPER truncate -s 500K $dirpath/$dataset_type.$num
+				run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
+				oflag=append conv=notrunc count=1 1>/dev/null 2>&1
+				run_check $SUDO_HELPER truncate -s 800K $dirpath/$dataset_type.$num
+			done
+			;;
+
+		acls)
+			for num in $(seq 1 $DATASET_SIZE);do
+				run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
+				run_check $SUDO_HELPER setfacl -m "u:root:x" $dirpath/$dataset_type.$num
+				run_check $SUDO_HELPER setfattr -n user.foo -v bar$num $dirpath/$dataset_type.$num
+			done
+			;;
+	esac
+}
+
+populate_fs() {
+
+        for dataset_type in 'small' 'hardlink' 'symlink' 'brokenlink' 'perm' 'sparse' 'acls' ; do
+		generate_dataset "$dataset_type"
+	done
+}
+
 convert_test() {
 	local features
 	local nodesize
@@ -39,15 +114,16 @@ convert_test() {
 	# when test image is on NFS and would not be writable for root
 	run_check truncate -s 0 $TEST_DEV
 	# 256MB is the smallest acceptable btrfs image.
-	run_check truncate -s 256M $TEST_DEV
+	run_check truncate -s 512M $TEST_DEV
 	run_check $* -F $TEST_DEV
 
 	# create a file to check btrfs-convert can convert regular file
 	# correct
 	run_check_mount_test_dev
+	populate_fs;
 	run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
 		count=1 1>/dev/null 2>&1
-	run_check_stdout md5sum $TEST_MNT/test > $CHECKSUMTMP
+	run_check_stdout find $TEST_MNT -type f ! -name 'image' -exec md5sum {} \+ > $CHECKSUMTMP
 	run_check_umount_test_dev
 
 	run_check $TOP/btrfs-convert ${features:+-O "$features"} -N "$nodesize" $TEST_DEV
@@ -56,7 +132,7 @@ convert_test() {
 
 	run_check_mount_test_dev
 	run_check_stdout md5sum -c $CHECKSUMTMP |
-		grep -q 'OK' || _fail "file validation failed."
+		grep -q 'FAILED' && _fail "file validation failed."
 	run_check_umount_test_dev
 }
 
-- 
1.8.3.1

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Re: [PATCH][btrfs-progs] populate fs with small dataset for convert-tests

[David Sterba]

On Tue, Mar 08, 2016 at 08:30:06PM +0530, Lakshmipathi.G wrote:
> +		perm)
> +			for modes in $(seq 1 7777);do

This generates way too many files, and is the longest part of image
pupulation, given the number of option combinations of ext4 and btrfs,
we need to keep the runtime reasonable.

I don't think we need to iterate over all RWX values, I'll enumerate a
list of common ones for now.

Patch applied.