tests: add basic rlimits test

Makefile.am

@@ -5680,6 +5680,9 @@ EXTRA_DIST += \
 	test/TEST-04-JOURNAL/Makefile \
 	test/TEST-04-JOURNAL/test-journal.sh \
 	test/TEST-04-JOURNAL/test.sh \
+	test/TEST-05-RLIMITS/Makefile \
+	test/TEST-05-RLIMITS/test-rlimits.sh \
+	test/TEST-05-RLIMITS/test.sh \
 	test/test-functions
 
 EXTRA_DIST += \

test/TEST-05-RLIMITS/Makefile

@@ -0,0 +1 @@
+../TEST-01-BASIC/Makefile

test/TEST-05-RLIMITS/test-rlimits.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -x
+set -e
+set -o pipefail
+
+[[ "$(systemctl show -p DefaultLimitNOFILESoft)" = "DefaultLimitNOFILESoft=10000" ]]
+[[ "$(systemctl show -p DefaultLimitNOFILE)" = "DefaultLimitNOFILE=16384" ]]
+
+[[ "$(systemctl show -p LimitNOFILESoft testsuite.service)" = "LimitNOFILESoft=10000" ]]
+[[ "$(systemctl show -p LimitNOFILE testsuite.service)" = "LimitNOFILE=16384" ]]
+
+[[ "$(ulimit -n -S)" = "10000" ]]
+[[ "$(ulimit -n -H)" = "16384" ]]
+
+touch /testok
+exit 0

test/TEST-05-RLIMITS/test.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
+TEST_DESCRIPTION="Resource limits-related tests"
+
+. $TEST_BASE_DIR/test-functions
+
+check_result_qemu() {
+    ret=1
+    mkdir -p $TESTDIR/root
+    mount ${LOOPDEV}p1 $TESTDIR/root
+    [[ -e $TESTDIR/root/testok ]] && ret=0
+    [[ -f $TESTDIR/root/failed ]] && cp -a $TESTDIR/root/failed $TESTDIR
+    cp -a $TESTDIR/root/var/log/journal $TESTDIR
+    umount $TESTDIR/root
+    [[ -f $TESTDIR/failed ]] && cat $TESTDIR/failed
+    ls -l $TESTDIR/journal/*/*.journal
+    test -s $TESTDIR/failed && ret=$(($ret+1))
+    return $ret
+}
+
+test_run() {
+    if run_qemu; then
+        check_result_qemu || return 1
+    else
+        dwarn "can't run QEMU, skipping"
+    fi
+    if check_nspawn; then
+        run_nspawn
+        check_result_nspawn || return 1
+    else
+        dwarn "can't run systemd-nspawn, skipping"
+    fi
+    return 0
+}
+
+test_setup() {
+    create_empty_image
+    mkdir -p $TESTDIR/root
+    mount ${LOOPDEV}p1 $TESTDIR/root
+
+    # Create what will eventually be our root filesystem onto an overlay
+    (
+        LOG_LEVEL=5
+        eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
+
+        setup_basic_environment
+
+        cat >$initdir/etc/systemd/system.conf <<EOF
+[Manager]
+DefaultLimitNOFILE=10000:16384
+EOF
+
+        # setup the testsuite service
+        cat >$initdir/etc/systemd/system/testsuite.service <<EOF
+[Unit]
+Description=Testsuite service
+After=multi-user.target
+
+[Service]
+ExecStart=/test-rlimits.sh
+Type=oneshot
+EOF
+
+        cp test-rlimits.sh $initdir/
+
+        setup_testsuite
+    ) || return 1
+    setup_nspawn_root
+
+    ddebug "umount $TESTDIR/root"
+    umount $TESTDIR/root
+}
+
+test_cleanup() {
+    umount $TESTDIR/root 2>/dev/null
+    [[ $LOOPDEV ]] && losetup -d $LOOPDEV
+    return 0
+}
+
+do_test "$@"