kernel/tools/testing/selftests/kselftest/runner.sh
2024-07-22 17:22:30 +08:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Runs a set of tests in a given subdirectory.
export skip_rc=4
export timeout_rc=124
export logfile=/dev/stdout
export per_test_logging=
# Defaults for "settings" file fields:
# "timeout" how many seconds to let each test run before failing.
export kselftest_default_timeout=45
# There isn't a shell-agnostic way to find the path of a sourced file,
# so we must rely on BASE_DIR being set to find other tools.
if [ -z "$BASE_DIR" ]; then
echo "Error: BASE_DIR must be set before sourcing." >&2
exit 1
fi
# If Perl is unavailable, we must fall back to line-at-a-time prefixing
# with sed instead of unbuffered output.
tap_prefix()
{
if [ ! -x /usr/bin/perl ]; then
sed -e 's/^/# /'
else
"$BASE_DIR"/kselftest/prefix.pl
fi
}
tap_timeout()
{
# Make sure tests will time out if utility is available.
if [ -x /usr/bin/timeout ] ; then
/usr/bin/timeout --foreground "$kselftest_timeout" \
/usr/bin/timeout "$kselftest_timeout" $1
else
$1
fi
}
run_one()
{
DIR="$1"
TEST="$2"
NUM="$3"
BASENAME_TEST=$(basename $TEST)
# Reset any "settings"-file variables.
export kselftest_timeout="$kselftest_default_timeout"
# Load per-test-directory kselftest "settings" file.
settings="$BASE_DIR/$DIR/settings"
if [ -r "$settings" ] ; then
while read line ; do
# Skip comments.
if echo "$line" | grep -q '^#'; then
continue
fi
field=$(echo "$line" | cut -d= -f1)
value=$(echo "$line" | cut -d= -f2-)
eval "kselftest_$field"="$value"
done < "$settings"
fi
TEST_HDR_MSG="selftests: $DIR: $BASENAME_TEST"
echo "# $TEST_HDR_MSG"
if [ ! -e "$TEST" ]; then
echo "# Warning: file $TEST is missing!"
echo "not ok $test_num $TEST_HDR_MSG"
else
cmd="./$BASENAME_TEST"
if [ ! -x "$TEST" ]; then
echo "# Warning: file $TEST is not executable"
if [ $(head -n 1 "$TEST" | cut -c -2) = "#!" ]
then
interpreter=$(head -n 1 "$TEST" | cut -c 3-)
cmd="$interpreter ./$BASENAME_TEST"
else
echo "not ok $test_num $TEST_HDR_MSG"
return
fi
fi
cd `dirname $TEST` > /dev/null
((((( tap_timeout "$cmd" 2>&1; echo $? >&3) |
tap_prefix >&4) 3>&1) |
(read xs; exit $xs)) 4>>"$logfile" &&
echo "ok $test_num $TEST_HDR_MSG") ||
(rc=$?; \
if [ $rc -eq $skip_rc ]; then \
echo "ok $test_num $TEST_HDR_MSG # SKIP"
elif [ $rc -eq $timeout_rc ]; then \
echo "#"
echo "not ok $test_num $TEST_HDR_MSG # TIMEOUT $kselftest_timeout seconds"
else
echo "not ok $test_num $TEST_HDR_MSG # exit=$rc"
fi)
cd - >/dev/null
fi
}
run_many()
{
echo "TAP version 13"
DIR="${PWD#${BASE_DIR}/}"
test_num=0
total=$(echo "$@" | wc -w)
echo "1..$total"
for TEST in "$@"; do
BASENAME_TEST=$(basename $TEST)
test_num=$(( test_num + 1 ))
if [ -n "$per_test_logging" ]; then
logfile="/tmp/$BASENAME_TEST"
cat /dev/null > "$logfile"
fi
run_one "$DIR" "$TEST" "$test_num"
done
}