Update tests.py

tests.py

@@ -248,7 +248,7 @@ def run_code_files(start_cmd:str,forever_cmd:str) -> dict:
     Any server/website started should use port 1337.
     Args:
         start_cmd (str): The shell command to execute the code.
-                         (e.g., ``python /app/code_interpreter/app.py``).
+                         (e.g., ``python /app/code_interpreter/app.py`` or ``node /app/code_interpreter/server.js``).
                          Files must be in ``/app/code_interpreter``.
         forever_cmd (str): Execution mode.
                            - ``'true'``: Runs indefinitely (for servers/websites).
@@ -290,6 +290,8 @@ def run_shell_command(cmd:str,forever_cmd:str) -> dict:
         - `sudo` is not available and not required.
         - Standard bash features like `&&`, `||`, pipes (`|`), etc., are supported.
         - When installing python packages , add an argument --break-system-packages to the pip install command.
+        - The following npm packages are preinstalled:  express ejs chart.js .Any additional packages can be installed with npm install command.
+
     Args:
         cmd (str): The shell command to execute.
                    Example: ``mkdir test_dir && ls -l``