57 lines
1.6 KiB
Bash
Executable File
57 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
|
|
# Test zstd compression support on a prebuilt btrfs image
|
|
|
|
source "$TEST_TOP/common" || exit
|
|
|
|
check_prereq btrfs
|
|
check_global_prereq md5sum
|
|
|
|
# Extract the test image
|
|
image=$(extract_image compress.raw.xz)
|
|
|
|
check_dump_tree() {
|
|
local image=$1
|
|
local string=$2
|
|
|
|
run_check_stdout "$TOP/btrfs" inspect-internal dump-tree "$image" \
|
|
| grep -q "$string" \
|
|
|| _fail "btrfs inspect-internal dump-tree didn't print $string"
|
|
}
|
|
|
|
# Check that there are blocks of each compression type
|
|
check_dump_tree "$image" "extent compression 1 (zlib)"
|
|
check_dump_tree "$image" "extent compression 2 (lzo)"
|
|
check_dump_tree "$image" "extent compression 3 (zstd)"
|
|
|
|
# Check that the filesystem has incompat COMPRESS_ZSTD
|
|
run_check_stdout "$TOP/btrfs" inspect-internal dump-super -f "$image" \
|
|
| grep -q COMPRESS_ZSTD \
|
|
|| _fail "btrfs inspect-internal dump-super no incompat COMPRESS_ZSTD"
|
|
|
|
# Create a temporary directory and restore the filesystem
|
|
restore_tmp=$(_mktemp_dir restore)
|
|
run_check "$TOP/btrfs" restore "$image" "$restore_tmp"
|
|
|
|
# Expect 3 files
|
|
num_files=$(ls -1 "$restore_tmp" | wc -l)
|
|
[ "$num_files" == 3 ] || _fail "number of files does not match"
|
|
|
|
check_md5() {
|
|
local file="$1"
|
|
local expect_md5="$2"
|
|
|
|
md5=$(run_check_stdout md5sum "$file" | cut -d ' ' -f 1)
|
|
[ "$md5" == "$expect_md5" ] \
|
|
|| _fail "$file digest $md5 does not match $expect_md5"
|
|
}
|
|
|
|
# Each should be 200K of zeros
|
|
expect_md5=$(dd if=/dev/zero bs=1K count=200 status=none | md5sum | cut -d ' ' -f 1)
|
|
check_md5 "$restore_tmp/zlib" "$expect_md5"
|
|
check_md5 "$restore_tmp/lzo" "$expect_md5"
|
|
check_md5 "$restore_tmp/zstd" "$expect_md5"
|
|
|
|
# Clean up
|
|
rm -r -- "$restore_tmp"
|
|
rm -- "$image"
|