1 files changed, 63 insertions, 0 deletions
diff --git a/test/units/TEST-01-BASIC.sh b/test/units/TEST-01-BASIC.sh
new file mode 100755
index 0000000..bb3ff2f
--- /dev/null
+++ b/test/units/TEST-01-BASIC.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Check if the colored --version output behaves correctly
+SYSTEMD_COLORS=256 systemctl --version
+
+# Check if we properly differentiate between a full systemd setup and a "light"
+# version of it that's done during daemon-reexec
+#
+# See: https://github.com/systemd/systemd/issues/27106
+if systemd-detect-virt -q --container; then
+    # We initialize /run/systemd/container only during a full setup
+    test -e /run/systemd/container
+    cp -afv /run/systemd/container /tmp/container
+    rm -fv /run/systemd/container
+    systemctl daemon-reexec
+    test ! -e /run/systemd/container
+    cp -afv /tmp/container /run/systemd/container
+else
+    # We bring the loopback netdev up only during a full setup, so it should
+    # not get brought back up during reexec if we disable it beforehand
+    [[ "$(ip -o link show lo)" =~ LOOPBACK,UP ]]
+    ip link set lo down
+    [[ "$(ip -o link show lo)" =~ state\ DOWN ]]
+    systemctl daemon-reexec
+    [[ "$(ip -o link show lo)" =~ state\ DOWN ]]
+    ip link set lo up
+
+    # We also disable coredumps only during a full setup
+    sysctl -w kernel.core_pattern=dont-overwrite-me
+    systemctl daemon-reexec
+    diff <(echo dont-overwrite-me) <(sysctl --values kernel.core_pattern)
+fi
+
+# Collect failed units & do one daemon-reload to a basic sanity check
+systemctl --state=failed --no-legend --no-pager | tee /failed
+test ! -s /failed
+systemctl daemon-reload
+
+# Check that the early setup is actually skipped on reexec.
+# If the early setup is done more than once, then several timestamps,
+# e.g. SecurityStartTimestamp, are re-initialized, and causes an ABRT
+# of systemd-analyze blame. See issue #27187.
+systemd-analyze blame
+
+# Test for 'systemd-update-utmp runlevel' vs 'systemctl daemon-reexec'.
+# See issue #27163.
+# shellcheck disable=SC2034
+if [[ -x /usr/lib/systemd/systemd-update-utmp ]]; then
+    for _ in {0..10}; do
+        systemctl daemon-reexec &
+        pid_reexec=$!
+        # shellcheck disable=SC2034
+        for _ in {0..10}; do
+            SYSTEMD_LOG_LEVEL=debug /usr/lib/systemd/systemd-update-utmp runlevel
+        done
+        wait "$pid_reexec"
+    done
+fi
+
+touch /testok