diff --git a/tests/test-all.sh b/tests/test-all.sh
index bcbf013096db2fa94cf4f2f2cea239e41e9047e8..1c1657cf12aa0f0efcec9903be87c79c50bace60 100755
--- a/tests/test-all.sh
+++ b/tests/test-all.sh
@@ -155,7 +155,7 @@ if [ "$2" != "python" ]; then
   elif [ "$1" == "b1" ]; then
     echo "### run TSIM b1 test ###"
     runSimCaseOneByOne jenkins/basic_1.txt
-    # runSimCaseOneByOne jenkins/basic_4.txt
+    runSimCaseOneByOne jenkins/basic_4.txt
   elif [ "$1" == "b2" ]; then
     echo "### run TSIM b2 test ###"
     runSimCaseOneByOne jenkins/basic_2.txt