writing-dev-server-tests

To write end-to-end hot-reload tests, you use a structured test harness with utilities like devTest and Client to simulate file changes and verify browser reloads. This approach automates validation of dev-server stability and bundling consistency.

A dev server test harness is a set of shared utilities and scaffolding that standardizes automated testing for live-reload behavior. You need one to validate file watching, hot-reload triggers, and bundling consistency across development and production-like modes.

Yes, you can validate hot module replacement in React and Vite-like setups by using bake harness utilities to simulate file changes. The test scaffolding executes end-to-end validation to ensure HMR and bundling behavior work correctly.

You automate file watching and live-reload testing by running bake tests that use the Dev class and Client utilities. These tools simulate file modifications and check that the dev server correctly triggers browser reloads and maintains bundling consistency.

Yes, this dev server testing approach supports cross-mode testing including dev-and-prod scenarios. It enables automated checks for live-reload behavior and bundling consistency across both development and production-like environments.

Hot-reload tests may fail if the bake harness utilities are not properly configured under the test/bake scaffolding directory. Ensure you are correctly using devTest and Client utilities to simulate file changes and validate the dev server's bundling behavior.