test: Add test for dynamically add/remove service in finit.d/ files

Signed-off-by: Magnus Malm <magnusmalm@gmail.com>

test/Makefile.am

@@ -1,6 +1,7 @@
 AM_TESTS_ENVIRONMENT = make -C test_root/;
 TESTS		     = checkself.sh
 TESTS		     += test_add_remove_dynamic_service/test.sh
+TESTS		     += test_add_remove_dynamic_service_sub_config/test.sh
 
 clean-local:
 	make -C test_root/ clean

test/common/service.conf

@@ -0,0 +1 @@
+service [2345] kill:20 log /test_assets/service.sh

test/test_add_remove_dynamic_service_sub_config/test.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+set -eu
+
+TEST_DIR=$(dirname "$0")/..
+# shellcheck source=/dev/null
+. "$TEST_DIR/lib.sh"
+
+assert_num_children() {
+    assert "$1 services are running" "$(texec pgrep -P 1 "$2" | wc -l)" -eq "$1"
+}
+
+test_teardown() {
+    say "Test done $(date)"
+    say "Running test teardown..."
+
+    # Teardown
+    rm -f test_root/bin/service.sh
+}
+
+# Test
+say "Test start $(date)"
+# toggle_finit_debug
+say "Add a dynamic service in $FINIT_CONF_DIR/service.conf"
+cp "$TEST_DIR"/common/service.sh "$TEST_DIR"/test_root/test_assets/
+texec sh -c "echo 'service [2345] kill:20 log /test_assets/service.sh pid:/run/service.pid' > $FINIT_CONF_DIR/service.conf"
+
+say 'Reload Finit'
+texec kill -SIGHUP 1
+
+pause
+
+retry 'assert_num_children 1 service.sh' 5
+
+say 'Remove the dynamic service from /etc/finit.d/service.conf'
+texec sh -c "echo > $FINIT_CONF_DIR/service.conf"
+
+say 'Reload Finit'
+texec kill -SIGHUP 1
+
+retry 'assert_num_children 0 service.sh' 5