cat > /etc/systemd/system/test1.service << EOF
[Unit]
Description=whorweTEST1

[Service]
Type=oneshot
ExecStart=/bin/bash /etc/systemd/system/test1.sh

[Install]
WantedBy=test.target
EOF
cat > /etc/systemd/system/test1.sh << EOF
systemctl daemon-reload &
systemctl try-restart test3.service
EOF
chmod +x /etc/systemd/system/test1.sh
cat > /etc/systemd/system/test2.service << EOF
[Unit]
Description=whorweTEST2
After=test1.service

[Service]
ExecStart=/usr/bin/true

[Install]
WantedBy=test.target
EOF
cat > /etc/systemd/system/test3.service << EOF
[Unit]
Description=whorweTEST3
After=test2.service

[Service]
ExecStart=/usr/bin/true

[Install]
WantedBy=test.target
EOF
cat > /etc/systemd/system/test.target << EOF
[Unit]
Description=whorweTEST_TARGET
EOF
systemctl daemon-reload
systemctl enable test1 test2 test3
cp /etc/systemd/system.conf /etc/systemd/system.conf.back
sed -i 's/#DefaultStartLimitBurst=5/DefaultStartLimitBurst=500/g' /etc/systemd/system.conf
systemctl daemon-reload
for i in `seq 1 100`; do
        systemctl stop test1 test2 test3 test.target;
        systemctl restart test.target;
        if [ $(($i%10)) = "0" ]; then
                echo $i;
        fi
done
mv /etc/systemd/system.conf.back /etc/systemd/system.conf
rm -rf /etc/systemd/system/test*
systemctl daemon-reload