diff --git a/javascriptv3/.gitignore b/javascriptv3/.gitignore
index 40b878db5b1..e84913c8b63 100644
--- a/javascriptv3/.gitignore
+++ b/javascriptv3/.gitignore
@@ -1 +1,2 @@
-node_modules/
\ No newline at end of file
+node_modules/
+*_test.log
\ No newline at end of file
diff --git a/javascriptv3/README.md b/javascriptv3/README.md
index 43720f87e06..19d0e4f503e 100644
--- a/javascriptv3/README.md
+++ b/javascriptv3/README.md
@@ -43,16 +43,20 @@ You can run tests for a specific service, or for every service in this repositor
 
   `npm test`
 
-- To run only unit tests, set the `TEST_SCOPE` variable to `unit`:
+- To run only unit tests, use the "unit" argument:
 
-  `TEST_SCOPE=unit npm test`
+  `npm test unit`
 
-- To run only integration tests, set the `TEST_SCOPE` variable to `integration`:
+- To run only integration tests, use the "integration" argument:
 
-  `TEST_SCOPE=integration npm test`
+  `npm test integration`
 
 - To run tests for a specific service, follow the instructions in the service's README.
 
+### Output
+
+If you run tests using the preceding commands, output will be stored in `unit_test.log` or `integration_test.log`. Errors are still logged to the console.
+
 ## Docker image (Beta)
 
 This example is available in a container image
diff --git a/javascriptv3/scripts/run_tests.sh b/javascriptv3/scripts/run_tests.sh
index bd9720136d1..bbcbf493e27 100755
--- a/javascriptv3/scripts/run_tests.sh
+++ b/javascriptv3/scripts/run_tests.sh
@@ -1,23 +1,28 @@
 #!/bin/bash
 
-function run_unit_tests() {
-  if ! npm run test --workspaces --if-present; then
-    exit 1
-  fi
+run_unit_tests() {
+  # Write stdout to a file and stderr to stdout
+  npm run test --workspaces --if-present -- --silent 2>&1 > unit_test.log 
 }
 
-function run_integration_tests() {
-  if ! npm run integration-test --workspaces --if-present; then
-    exit 1
-  fi
+run_integration_tests() {
+  # Write stdout to a file and stderr to stdout
+  npm run integration-test --workspaces --if-present --silent 2>&1 > integration_test.log
 }
 
-if [ -z "$1" ]; then
-  echo "Usage: $0 [unit|integration]"
+run_all() {
+  if ! run_unit_tests || ! run_integration_tests; then
   exit 1
-elif [ "$1" == "unit" ]; then
+  fi
+}
+
+if [[ $# -eq 0 ]]; then
+  run_unit_tests
+elif [[ "$1" == "unit" && "$2" == "integration" ]] || [[ "$1" == "integration" && "$2" == "unit" ]]; then
+  run_all
+elif [[ "$1" == "unit" || "$2" == "unit" ]]; then
   run_unit_tests
-elif [ "$1" == "integration" ]; then
+elif [[ "$1" == "integration" || "$2" == "integration" ]]; then
   run_integration_tests
 else
   echo "Usage: $0 [unit|integration]"