Testium Example App

This application is used to test testium itself. Changes to this application should be done carefully. If additional behavior is required, it might be better to add a new file or endpoint than to change an existing one.

• Start on default port (4003): npm start
• Start on any port (e.g. 8080): PORT=8080 npm start

Endpoints

/echo

Sends a JSON response with information about the incoming request:

{
  ip, // remote address/ip of the sender
  method, // the http method, e.g. 'GET'
  url, // the request url path, e.g. '/echo?a=42'
  body, // the request body for POST etc.
  headers, // the request headers
}

/error

Sends a minimal error page with status code 500.

/crash

Resets the connection without sending a valid response. Simulates the app crashing.

/blackhole

Never sends a response and keeps the connection open indefinitely. Useful for testing timeout behavior, making sure the test suite can recover.

/blackholed-resource.html

Simulates a resource required by the page (a script tag) never fully loading, preventing the page load from finishing.

/dynamic.html

Simulates a page that delays displaying and hiding certain elements, e.g. because it's waiting for additional data to load.

• div.load_later: Shows after 300ms
• div.load_never: Is and stays hidden
• div.hide_later: Gets hidden after 300ms
• div.hide_never: Is and stays visible

/index.html

A relatively complex page:

• Multiple div.message elements to verify uniqueness constraints for selectors
• Exactly one div.only to have a unique element to select
• a.link-to-other-page linking to /other-page.html
• A form with various input elements
• A button that triggers log messages
• Different alerts, triggered by links

/index-diff.html

Looks just like /index.html, just with slightly different content at the bottom. Can be used to test visual diffing.

/other-page.html

A mostly empty page that is linked to by /index.html.

/redirect-after.html

Uses a meta tag to redirect to /index.html after a few ms.

/redirect-to-query.html

Just like /redirect-after.html but additionally passes two query params:

• a b: A B - to test encoding of spaces
• c: 1,7 - to test url encoding of special characters

/windows.html

For testing popup & iframe related features.

/frame.html

Displayed as iframe#cool-frame and contains div.in-iframe-only and iframe#nested-frame (see /nested-frame.html).

/nested-frame.html

This page contains div#nested-frame-div.

/popup.html

Can be opened by clicking on button#open-popup and contains div.popup-only.

/draggable.html

Displays a draggable element for testing buttonDown/Up and movePointer...

/pwa.html

Displays an installable minimal PWA testing page (it passes lighthouse audit with a score of 100)