test: new regression test for initctl restart self

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/restart-self.sh

@@ -0,0 +1,47 @@
+#!/bin/sh
+# Verify that a service can restart itself, issue #280
+set -eu
+
+TEST_DIR=$(dirname "$0")
+
+test_setup()
+{
+	say "Test start $(date)"
+	texec sh -c "mkdir -p /etc/default"
+}
+
+test_teardown()
+{
+	say "Test done $(date)"
+	say "Running test teardown."
+
+	texec rm -f "$FINIT_CONF"
+}
+
+check_restarts()
+{
+	assert "serv restarts" "$(texec cat "$1" | awk '{print $1;}')" -ge "$2"
+}
+
+
+# shellcheck source=/dev/null
+. "$TEST_DIR/tenv/lib.sh"
+
+say "Add stanza to $FINIT_CONF"
+texec sh -c "echo 'service serv -np -r serv -- Restart self' > $FINIT_CONF"
+
+say 'Reload Finit'
+texec sh -c "initctl reload"
+
+sleep 2
+texec sh -c "initctl status serv"
+texec sh -c "ps"
+
+sleep 2
+texec sh -c "initctl status serv"
+texec sh -c "ps"
+
+say 'Pending restarts by itself ...'
+retry 'check_restarts /tmp/serv-restart.cnt 3' 20 1
+
+return 0