From 9347efbb4e476d6fc8d497c8a5b98292eafa5bb5 Mon Sep 17 00:00:00 2001
From: Takashi Matsuo <tmatsuo@google.com>
Date: Wed, 12 Oct 2022 11:30:13 -0700
Subject: [PATCH] fix: fixes the test driver when there's no change

Example failure: #563
---
 ci/cloudbuild/run_test.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ci/cloudbuild/run_test.sh b/ci/cloudbuild/run_test.sh
index c1af9c6a..1fc424bd 100644
--- a/ci/cloudbuild/run_test.sh
+++ b/ci/cloudbuild/run_test.sh
@@ -100,4 +100,8 @@ for d in ${subdirs[@]}; do
     fi
 done
 
-${btlr_bin} run ${dirs_to_test[@]} -- ${test_script}
+if [ ${#dirs_to_test[@]} -gt 0 ]; then
+    ${btlr_bin} run ${dirs_to_test[@]} -- ${test_script}
+else
+    echo "Nothing changed in the samples"
+fi