Prevent some import dependencies from being packed into bundles in your code, and instead Rstest will import them at runtime.
node_modules are externalized by default.If you want a dependency to be externalized, you can configure it in output.externals.
For custom CSS Modules configuration.
Whether to clean up all test temporary files under the output directory before the test starts.
By default, rstest does not write test temporary files to disk, and this configuration item may be required when you debug rstest outputs.