[PATCH] erofs-utils: tests: check the compress-hints functionality

[Huang Jianan via Linux-erofs <linux-erofs@lists.ozlabs.org>]

Signed-off-by: Huang Jianan <huangjianan@oppo.com>
---
 tests/Makefile.am   |  5 ++-
 tests/common/rc     |  2 +-
 tests/erofs/017     | 78 +++++++++++++++++++++++++++++++++++++++++++++
 tests/erofs/017.out |  2 ++
 4 files changed, 85 insertions(+), 2 deletions(-)
 create mode 100755 tests/erofs/017
 create mode 100644 tests/erofs/017.out

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 1d73a1b..632dcf5 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -70,9 +70,12 @@ TESTS += erofs/014
 # 015 - regression test for battach on full buffer block
 TESTS += erofs/015
 
-# 006 - verify the uncompressed image with 2-level random files
+# 016 - verify the uncompressed image with 2-level random files
 TESTS += erofs/016
 
+# 017 - check the compress-hints functionality
+TESTS += erofs/017
+
 EXTRA_DIST = common/rc erofs
 
 clean-local: clean-local-check
diff --git a/tests/common/rc b/tests/common/rc
index a6b6014..abd88d1 100644
--- a/tests/common/rc
+++ b/tests/common/rc
@@ -185,7 +185,7 @@ _scratch_cycle_mount()
 
 _get_filesize()
 {
-    stat -c %s "$1"
+	stat -c %s "$1"
 }
 
 _require_fssum()
diff --git a/tests/erofs/017 b/tests/erofs/017
new file mode 100755
index 0000000..a12d1ad
--- /dev/null
+++ b/tests/erofs/017
@@ -0,0 +1,78 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+
+# get standard environment, filters and checks
+. "${srcdir}/common/rc"
+
+cleanup()
+{
+	cd /
+	rm -rf $tmp.*
+}
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+echo "QA output created by $seq"
+
+[ -z "$lz4hc_on" ] && \
+	_notrun "lz4hc compression is disabled, skipped."
+
+if [ -z $SCRATCH_DEV ]; then
+	SCRATCH_DEV=$tmp/erofs_$seq.img
+	rm -f SCRATCH_DEV
+fi
+
+localdir="$tmp/$seq"
+rm -rf $localdir
+mkdir -p $localdir
+
+# collect files pending for verification
+dirs=`find ../ -maxdepth 1 -type d -printf '%p:'`
+IFS=':'
+for d in $dirs; do
+	[ $d = '../' ] && continue
+	[ -z "${d##\.\./tests*}" ] && continue
+	[ -z "${d##\.\./\.*}" ] && continue
+	cp -nR $d $localdir
+done
+unset IFS
+
+# init compress_hints
+compress_hints="$tmp/compress_hints"
+rm -rf $compress_hints
+# ignore warning
+MKFS_OPTIONS="${MKFS_OPTIONS} -d1 -zlz4hc --compress-hints=$compress_hints"
+
+echo "0" > $compress_hints
+_scratch_mkfs $localdir && \
+	_fail "successfully mkfs with invalid compress_hints"
+
+echo "0        \.c$"  >  $compress_hints
+echo "1048577  \.am$" >> $compress_hints
+echo "8192     \.h$"  >> $compress_hints
+_scratch_mkfs $localdir || _fail "failed to mkfs"
+
+# verify lz4hc compressed image
+_require_erofs
+_require_fssum
+
+_scratch_mount 2>>$seqres.full
+
+FSSUM_OPTS="-MAC"
+[ $FSTYP = "erofsfuse" ] && FSSUM_OPTS="${FSSUM_OPTS}T"
+
+sum1=`$FSSUM_PROG $FSSUM_OPTS $localdir`
+echo "$localdir checksum is $sum1" >>$seqres.full
+sum2=`$FSSUM_PROG $FSSUM_OPTS $SCRATCH_MNT`
+echo "$SCRATCH_MNT checksum is $sum2" >>$seqres.full
+
+[ "x$sum1" = "x$sum2" ] || _fail "-->checkMD5 FAILED"
+_scratch_unmount
+
+echo Silence is golden
+status=0
+exit 0
diff --git a/tests/erofs/017.out b/tests/erofs/017.out
new file mode 100644
index 0000000..8222844
--- /dev/null
+++ b/tests/erofs/017.out
@@ -0,0 +1,2 @@
+QA output created by 017
+Silence is golden
-- 
2.25.1