Refactor: reduce duplication and tighten helpers

- Remove redundant applicationUri log in print_application_description
- Use UA_SECURITY_POLICY_NONE_URI macro instead of hardcoded string
- Extract _s_register_with_lds / _s_deregister_from_lds helpers
- Rename signal handler param 'sign' to 'sig' for consistency
- Add INT_MIN/INT_MAX bounds check to config_require_int
- Extract shared test helpers into tests/test_helpers.sh

1 files changed, 3 insertions, 34 deletions

diff --git a/tests/run_download_cert_test.sh b/tests/run_download_cert_test.sh
index 3631c56..7dd7dfd 100755
--- a/tests/run_download_cert_test.sh
+++ b/tests/run_download_cert_test.sh
@@ -12,13 +12,14 @@
 # ---------------------------------------------------------------
 set -uo pipefail
 
+source "$(dirname "$0")/test_helpers.sh"
+
 CONFIG_DIR="${1:?Usage: $0 <config_dir>}"
 
 LDS_PORT=14840
 LDS_PID=""
 TMPFILE=""
 DOWNLOADED_CERT=""
-FAILURES=0
 
 # ── cleanup ────────────────────────────────────────────────────
 cleanup() {
@@ -28,39 +29,7 @@ cleanup() {
 }
 trap cleanup EXIT
 
-# ── helpers ────────────────────────────────────────────────────
-wait_for_port() {
-  local port="$1" pid="$2" label="$3" i=0
-  while [ $i -lt 50 ]; do
-    if ! kill -0 "$pid" 2>/dev/null; then
-      echo "FAIL: $label exited prematurely"
-      exit 1
-    fi
-    if ss -tlnp 2>/dev/null | grep -q ":${port} "; then
-      return 0
-    fi
-    sleep 0.1
-    i=$((i + 1))
-  done
-  echo "FAIL: $label did not listen on port $port within 5 s"
-  exit 1
-}
-
-check() {
-  local label="$1" result="$2"
-  if [ "$result" -eq 0 ]; then
-    echo "PASS: $label"
-  else
-    echo "FAIL: $label"
-    FAILURES=$((FAILURES + 1))
-  fi
-}
-
-# ── port check ─────────────────────────────────────────────────
-if ss -tlnp 2>/dev/null | grep -q ":${LDS_PORT} "; then
-  echo "FAIL: port $LDS_PORT is already in use"
-  exit 1
-fi
+assert_ports_free "$LDS_PORT"
 
 # ── start LDS ──────────────────────────────────────────────────
 build/bobink_opcua_discovery_server "$CONFIG_DIR/server_lds.conf" >/dev/null 2>&1 &