test: add test case for AddDependencyUnitFiles assert

Follow-up for d87dc74e8f1a30d72a0f202e411400bab34ab55a

diff --git a/test/units/TEST-07-PID1.issue-35882.sh b/test/units/TEST-07-PID1.issue-35882.sh
new file mode 100755 (executable)
index 0000000..cf1650c
--- /dev/null
+++ b/test/units/TEST-07-PID1.issue-35882.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# shellcheck source=test/units/util.sh
+. "$(dirname "$0")"/util.sh
+
+(! busctl call org.freedesktop.systemd1 /org/freedesktop/systemd1 org.freedesktop.systemd1.Manager AddDependencyUnitFiles "asssbb" 0 abracadabra After 1 1)
+
+exit 0