diff --git a/js/tests/run_test.sh b/js/tests/run_test.sh
index 5e6c2e8..c6415f1 100755
--- a/js/tests/run_test.sh
+++ b/js/tests/run_test.sh
@@ -4,10 +4,14 @@
 # This script runs tests that compares the js
 # with the expected output from the c code
 #
-# usage: ./run_js_tests.sh
+# usage: ./run_test.sh
 
 output_file="log.txt"
-rm $output_file
+if [[ -f "$output_file" ]]
+then
+  echo "rm $output_file"
+  rm $output_file
+fi
 
 ln -s BNCX.json testVectors.json
 ln -s BNCXOnePass.json testVectorsOnePass.json
@@ -45,6 +49,12 @@
 echo "TEST 7: node test_onepass.js" >> $output_file 
 node test_onepass.js >> $output_file 2>&1
 
+error=$(grep -i error "${output_file}" )
+if [[ -n "$error" ]]; then
+   echo "ERROR. Please review ${output_file}"
+   exit 1
+fi
+
 failed=$(grep FAILED "${output_file}" )
 if [[ -n "$failed" ]]; then
    echo "A TEST HAS FAILED. Please review ${output_file}"
@@ -54,10 +64,5 @@
    echo "ALL TESTS PASSED" >> $output_file 
 fi
 
-error=$(grep -i error "${output_file}" )
-if [[ -n "$error" ]]; then
-   echo "ERROR. Please review ${output_file}"
-fi
-
 rm testVectors.json
 rm testVectorsOnePass.json