test: add testcase for subcgroup killing

diff --git a/test/units/TEST-07-PID1.subgroup-kill.sh b/test/units/TEST-07-PID1.subgroup-kill.sh
new file mode 100755 (executable)
index 0000000..f62340e
--- /dev/null
+++ b/test/units/TEST-07-PID1.subgroup-kill.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+# shellcheck disable=SC2016
+set -eux
+set -o pipefail
+
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+# shellcheck source=test/units/util.sh
+. "$(dirname "$0")"/util.sh
+
+at_exit() {
+    loginctl disable-linger testuser ||:
+    run0 -u testuser systemctl --user stop subgroup-test.service ||:
+}
+
+trap at_exit EXIT
+
+loginctl enable-linger testuser
+run0 -u testuser systemd-run --user --unit=subgroup-test.service sleep infinity
+
+systemctl kill user@"$(id -u testuser)".service --kill-subgroup=waldo
+systemctl kill user@"$(id -u testuser)".service --kill-subgroup=/waldo
+systemctl kill user@"$(id -u testuser)".service --kill-subgroup=waldo/knurz
+systemctl kill user@"$(id -u testuser)".service --kill-subgroup=/waldo/knurz
+
+(! systemctl kill user@"$(id -u testuser)".service --kill-subgroup=waldo --kill-whom=cgroup-fail)
+(! systemctl kill user@"$(id -u testuser)".service --kill-subgroup=/waldo --kill-whom=cgroup-fail)
+(! systemctl kill user@"$(id -u testuser)".service --kill-subgroup=waldo/knurz --kill-whom=cgroup-fail)
+(! systemctl kill user@"$(id -u testuser)".service --kill-subgroup=/waldo/knurz --kill-whom=cgroup-fail)
+
+run0 -u testuser systemctl --user is-active subgroup-test.service
+(! systemctl kill user@"$(id -u testuser)".service --kill-subgroup=app.slice/subgroup-test.service/waldo --kill-whom=cgroup-fail)
+run0 -u testuser systemctl --user is-active subgroup-test.service
+systemctl kill user@"$(id -u testuser)".service --kill-subgroup=app.slice/subgroup-test.service/waldo
+run0 -u testuser systemctl --user is-active subgroup-test.service
+systemctl kill user@"$(id -u testuser)".service --kill-subgroup=app.slice/subgroup-test.service --kill-whom=cgroup-fail
+
+timeout 60 bash -c 'while run0 -u testuser systemctl --user is-active subgroup-test.service ; do sleep 1 ; done'