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btrfs-progs: tests: add testing image for zstd for btrfs-restore

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Adds tests for the new features based on a prebuilt btrfs image with a
zstd compressed file.

Split from the previous patch.

Signed-off-by: Nick Terrell <terrelln@fb.com>
[ with some cleanups ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nick Terrell 2017-09-11 21:27:52 +02:00 committed by David Sterba
parent 717a8b1e5d
commit 0766330f85
3 changed files with 65 additions and 0 deletions
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9
.travis.yml
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@ -59,6 +59,15 @@ before_install:
sudo make install;
cd ../..
"
- "mkdir tmp-zstd;
cd tmp-zstd;
wget https://github.com/facebook/zstd/archive/v1.3.1.tar.gz;
tar xf v1.3.1.tar.gz;
cd zstd-1.3.1;
make;
sudo make install PREFIX=/usr;
cd ../..
"
- "./autogen.sh && ./configure --disable-documentation && make"
addons:

BIN
tests/misc-tests/025-zstd-compression/compress.raw.xz Normal file
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56
tests/misc-tests/025-zstd-compression/test.sh Executable file
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@ -0,0 +1,56 @@
#!/bin/bash
# Test zstd compression support on a prebuilt btrfs image
source "$TOP/tests/common"
check_prereq btrfs
check_global_prereq md5sum
# Extract the test image
image=$(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=$(mktemp --tmpdir -d btrfs-progs-022-zstd-compression.XXXXXXXXXX)
run_check "$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"