1 files changed, 26 insertions, 2 deletions
diff --git a/test/units/testsuite-21.sh b/test/units/TEST-21-DFUZZER.sh
index 02673ab..08ebfd9 100755
--- a/test/units/testsuite-21.sh
+++ b/test/units/TEST-21-DFUZZER.sh
@@ -3,6 +3,12 @@
 set -eux
 set -o pipefail
 
+# check dfuzzer is present before testing
+if ! command -v dfuzzer &>/dev/null; then
+    echo "dfuzzer is not installed, skipping" | tee --append /skipped
+    exit 77
+fi
+
 # Save the end.service state before we start fuzzing, as it might get changed
 # on the fly by one of the fuzzers
 systemctl list-jobs | grep -F 'end.service' && SHUTDOWN_AT_EXIT=1 || SHUTDOWN_AT_EXIT=0
@@ -21,14 +27,32 @@ at_exit() {
     fi
 }
 
+add_suppression() {
+    local interface="${1:?}"
+    local suppression="${2:?}"
+
+    sed -i "\%\[$interface\]%a$suppression" /etc/dfuzzer.conf
+}
+
 trap at_exit EXIT
 
 systemctl log-level info
 
 # FIXME: systemd-run doesn't play well with daemon-reexec
 # See: https://github.com/systemd/systemd/issues/27204
-sed -i '/\[org.freedesktop.systemd1\]/aorg.freedesktop.systemd1.Manager:Reexecute FIXME' /etc/dfuzzer.conf
-sed -i '/\[org.freedesktop.systemd1\]/aorg.freedesktop.systemd1.Manager:SoftReboot destructive' /etc/dfuzzer.conf
+add_suppression "org.freedesktop.systemd1" "org.freedesktop.systemd1.Manager:Reexecute FIXME"
+
+add_suppression "org.freedesktop.systemd1" "org.freedesktop.systemd1.Manager:SoftReboot destructive"
+add_suppression "org.freedesktop.login1" "Sleep destructive"
+
+# Skip calling start and stop methods on unit objects, as doing that is not only time consuming, but it also
+# starts/stops units that interfere with the machine state. The actual code paths should be covered (to some
+# degree) by the respective method counterparts on the manager object.
+for method in Start Stop Restart ReloadOrRestart ReloadOrTryRestart Kill; do
+    add_suppression "org.freedesktop.systemd1" "org.freedesktop.systemd1.Unit:$method"
+done
+
+cat /etc/dfuzzer.conf
 
 # TODO
 #   * check for possibly newly introduced buses?