On Thu, 20 May 2021 07:56:28 +0000 SeongJae Park <sj38.park@xxxxxxxxx> wrote: > From: SeongJae Park <sjpark@xxxxxxxxx> > > This commit adds a simple user space tests for DAMON. The tests are > using kselftest framework. > > Signed-off-by: SeongJae Park <sjpark@xxxxxxxxx> > --- > tools/testing/selftests/damon/Makefile | 7 ++ > .../selftests/damon/_chk_dependency.sh | 28 ++++++ > .../testing/selftests/damon/debugfs_attrs.sh | 98 +++++++++++++++++++ > 3 files changed, 133 insertions(+) > create mode 100644 tools/testing/selftests/damon/Makefile > create mode 100644 tools/testing/selftests/damon/_chk_dependency.sh > create mode 100755 tools/testing/selftests/damon/debugfs_attrs.sh > > diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile > new file mode 100644 > index 000000000000..8a3f2cd9fec0 > --- /dev/null > +++ b/tools/testing/selftests/damon/Makefile > @@ -0,0 +1,7 @@ > +# SPDX-License-Identifier: GPL-2.0 > +# Makefile for damon selftests > + > +TEST_FILES = _chk_dependency.sh > +TEST_PROGS = debugfs_attrs.sh > + > +include ../lib.mk > diff --git a/tools/testing/selftests/damon/_chk_dependency.sh b/tools/testing/selftests/damon/_chk_dependency.sh > new file mode 100644 > index 000000000000..e090836c2bf7 > --- /dev/null > +++ b/tools/testing/selftests/damon/_chk_dependency.sh > @@ -0,0 +1,28 @@ > +#!/bin/bash > +# SPDX-License-Identifier: GPL-2.0 > + > +# Kselftest framework requirement - SKIP code is 4. > +ksft_skip=4 > + > +DBGFS=/sys/kernel/debug/damon > + > +if [ $EUID -ne 0 ]; > +then > + echo "Run as root" > + exit $ksft_skip > +fi > + > +if [ ! -d $DBGFS ] > +then > + echo "$DBGFS not found" > + exit $ksft_skip > +fi > + > +for f in attrs target_ids monitor_on > +do > + if [ ! -f "$DBGFS/$f" ] > + then > + echo "$f not found" > + exit 1 > + fi > +done > diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh > new file mode 100755 > index 000000000000..4a8ab4910ee4 > --- /dev/null > +++ b/tools/testing/selftests/damon/debugfs_attrs.sh > @@ -0,0 +1,98 @@ > +#!/bin/bash > +# SPDX-License-Identifier: GPL-2.0 > + > +source ./_chk_dependency.sh > + > +# Test attrs file > +file="$DBGFS/attrs" > + > +ORIG_CONTENT=$(cat $file) Missing quotes around $file. Can you run shellcheck on this code and fix all reportings, please? > + > +echo 1 2 3 4 5 > $file > +if [ $? -ne 0 ] > +then > + echo "$file write failed" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +echo 1 2 3 4 > $file > +if [ $? -eq 0 ] > +then > + echo "$file write success (should failed)" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +CONTENT=$(cat $file) > +if [ "$CONTENT" != "1 2 3 4 5" ] > +then > + echo "$file not written" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi I'd add test cases for the contents written to the attrs, like checking that input min_nr_regions is actually smaller than the input max_nr_regions values. > + > +echo $ORIG_CONTENT > $file > + > +# Test target_ids file > +file="$DBGFS/target_ids" > + > +ORIG_CONTENT=$(cat $file) > + > +echo "1 2 3 4" > $file > +if [ $? -ne 0 ] > +then > + echo "$file write fail" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +echo "1 2 abc 4" > $file > +if [ $? -ne 0 ] > +then > + echo "$file write fail" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi I've seen this construct more than once. Any chance to refactor this code? Or is this selftest not expected to grow in the future? > + > +CONTENT=$(cat $file) > +if [ "$CONTENT" != "1 2" ] > +then > + echo "$file not written" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +echo abc 2 3 > $file > +if [ $? -ne 0 ] > +then > + echo "$file wrong value write fail" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +if [ ! -z "$(cat $file)" ] > +then > + echo "$file not cleared" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +echo > $file > +if [ $? -ne 0 ] > +then > + echo "$file init fail" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +if [ ! -z "$(cat $file)" ] > +then > + echo "$file not initialized" > + echo $ORIG_CONTENT > $file > + exit 1 > +fi > + > +echo $ORIG_CONTENT > $file > + > +echo "PASS" > -- > 2.17.1 > > > > Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879
