before-screenshot-with-args.md

fixture	initial-width	initial-height
fixtures/before-screenshot-with-args.js	150	50

Pass arguments to the function before screenshots

Any code in the beforeScreenshot fixture result is executed in the browser context before taking the screenshot, but the function is in the browser context, not the fixture context. This means that you can access browser DOM objects directly, but you can't access local variables from the fixture enclosure.

To pass arguments between the two contexts, set the beforeScreenshotArgs field on the fixture result. This must be an array, and the elements of the arrays will be passed directly to your beforeScreenshot function as individual arguments.

Example

This page is an executable initialising a HTML page by passing the text into a browser context before screenshot, using the before-screenshot-with-args.js.

This fixture generates some HTML that initially has a hidden element

text: Dynamic text