test: new test to verify support for forking services

Issue #223

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

test/start-stop-fserv.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+set -eu
+
+TEST_DIR=$(dirname "$0")
+
+# shellcheck source=/dev/null
+. "$TEST_DIR/tenv/lib.sh"
+
+test_teardown()
+{
+	say "Test done $(date)"
+	say "Running test teardown."
+
+	texec rm -f "$FINIT_CONF"
+	texec rm -f /test_assets/fserv
+}
+
+say "Test start $(date)"
+
+cp "$TEST_DIR"/common/fserv "$TENV_ROOT"/test_assets/
+
+say "Add service stanza in $FINIT_CONF"
+texec sh -c "echo 'service [2345] pid:!/run/fserv.pid /test_assets/fserv -- Forking service' > $FINIT_CONF"
+
+say 'Reload Finit'
+#texec sh -c "initctl debug"
+texec sh -c "initctl reload"
+#texec sh -c "initctl status"
+#texec sh -c "ps"
+
+# Wait for process to fork, create its PID file so Finit can register
+# its new PID -- this is the major difference from regular services.
+sleep 2
+
+#texec sh -c "initctl status"
+#texec sh -c "ps"
+#texec sh -c "initctl status fserv"
+
+retry 'assert_num_children 1 fserv'
+
+say 'Stop the service'
+texec sh -c "initctl stop fserv"
+
+retry 'assert_num_children 0 fserv'
+
+say 'Start the service again'
+texec sh -c "initctl start fserv"
+
+retry 'assert_num_children 1 fserv'