test(scripts): resolve binaries from build bin layout

scripts/fault_suite.sh

@@ -5,6 +5,7 @@ set -euo pipefail
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 STREAMER_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
 BUILD_DIR="${STREAMER_ROOT}/build"
+BUILD_BIN_DIR="${BUILD_DIR}/bin"
 EVIDENCE_ROOT="${STREAMER_ROOT}/.sisyphus/evidence"
 TASK_EVIDENCE_DIR="${EVIDENCE_ROOT}/task-15-fault-suite"
 SUMMARY_HELPER="${SCRIPT_DIR}/fault_summary_helper.py"
@@ -70,6 +71,28 @@ allocate_run_dir || exit 1
 
 echo -e "order\tscenario_id\tname\tstatus\treason\tduration_ms\tcommand_rc\tlog_path" > "${MANIFEST_TSV}"
 
+binary_exists() {
+	local path="$1"
+	[[ -x "${path}" ]]
+}
+
+binary_candidates() {
+	local name="$1"
+	printf '%s\n' "${BUILD_BIN_DIR}/${name}" "${BUILD_DIR}/${name}"
+}
+
+resolve_binary() {
+	local name="$1"
+	local candidate=""
+	while IFS= read -r candidate; do
+		if binary_exists "${candidate}"; then
+			printf '%s\n' "${candidate}"
+			return 0
+		fi
+	done < <(binary_candidates "${name}")
+	return 1
+}
+
 append_manifest_row() {
 	local order="$1"
 	local scenario_id="$2"
@@ -125,14 +148,14 @@ run_expected_failure() {
 
 main() {
 	local required=(
-		"${BUILD_DIR}/cvmmap_streamer"
-		"${BUILD_DIR}/rtmp_output_tester"
+		"cvmmap_streamer"
+		"rtmp_output_tester"
 	)
 
 	local missing=()
 	for bin in "${required[@]}"; do
-		if [[ ! -x "${bin}" ]]; then
-			missing+=("${bin}")
+		if ! resolve_binary "${bin}" >/dev/null; then
+			missing+=("${BUILD_BIN_DIR}/${bin} or ${BUILD_DIR}/${bin}")
 		fi
 	done
 
@@ -149,16 +172,19 @@ main() {
 		return 1
 	fi
 
+	CVMMAP_STREAMER_BIN="$(resolve_binary cvmmap_streamer)"
+	RTMP_OUTPUT_TESTER="$(resolve_binary rtmp_output_tester)"
+
 	run_expected_failure 1 "removed_encoder_backend" "removed encoder backend rejected" \
 		"invalid encoder backend: 'gstreamer_legacy' was removed; use ffmpeg" \
-		"${BUILD_DIR}/cvmmap_streamer" \
+		"${CVMMAP_STREAMER_BIN}" \
 		--run-mode pipeline \
 		--input-uri cvmmap://default \
 		--encoder-backend gstreamer_legacy
 
 	run_expected_failure 2 "removed_rtmp_transport" "removed RTMP transport rejected" \
 		"invalid rtmp transport: 'legacy_custom' was removed; use libavformat or ffmpeg_process" \
-		"${BUILD_DIR}/cvmmap_streamer" \
+		"${CVMMAP_STREAMER_BIN}" \
 		--run-mode pipeline \
 		--input-uri cvmmap://default \
 		--rtmp \
@@ -167,7 +193,7 @@ main() {
 
 	run_expected_failure 3 "removed_rtmp_mode_cli" "removed RTMP mode flag rejected" \
 		"unknown argument: --rtmp-mode (removed; RTMP always uses enhanced mode)" \
-		"${BUILD_DIR}/cvmmap_streamer" \
+		"${CVMMAP_STREAMER_BIN}" \
 		--rtmp-mode enhanced
 
 	local mode_row_dir="${RUN_DIR}/4-removed_rtmp_mode_toml"
@@ -181,19 +207,19 @@ mode = "enhanced"
 EOF
 	run_expected_failure 4 "removed_rtmp_mode_toml" "removed RTMP mode TOML rejected" \
 		"invalid RTMP config: outputs.rtmp.mode was removed; RTMP always uses enhanced mode" \
-		"${BUILD_DIR}/cvmmap_streamer" \
+		"${CVMMAP_STREAMER_BIN}" \
 		--config "${mode_config}"
 
 	run_expected_failure 5 "missing_rtmp_url" "missing RTMP URL rejected" \
 		"invalid RTMP config: enabled RTMP output requires at least one URL" \
-		"${BUILD_DIR}/cvmmap_streamer" \
+		"${CVMMAP_STREAMER_BIN}" \
 		--run-mode pipeline \
 		--input-uri cvmmap://default \
 		--rtmp
 
 	run_expected_failure 6 "invalid_rtp_endpoint" "invalid RTP endpoint rejected" \
 		"invalid RTP config: endpoint must be in '<host>:<port>' format" \
-		"${BUILD_DIR}/cvmmap_streamer" \
+		"${CVMMAP_STREAMER_BIN}" \
 		--run-mode pipeline \
 		--input-uri cvmmap://default \
 		--rtp \
@@ -201,7 +227,7 @@ EOF
 
 	run_expected_failure 7 "ffmpeg_process_bad_binary" "ffmpeg_process child failure surfaces" \
 		"child exited before publish completed" \
-		"${BUILD_DIR}/rtmp_output_tester" \
+		"${RTMP_OUTPUT_TESTER}" \
 		--rtmp-url rtmp://127.0.0.1/live/test \
 		--transport ffmpeg_process \
 		--ffmpeg-path /nonexistent/ffmpeg \