Hi there, I wish to be able to change the system/browser's theme preference in the middle of my test, because my app can react to changes in user's preference without them having to reload the page. To assert this, I need to be able to change the system/browser's theme when the test runner is executing the test. Something like:
test("reacts to system theme changes", async ({ page }) => {
// ...
test.use({ colorScheme: "dark" });
// ...
});
Currently, this API throws an error:
Error: Playwright Test did not expect test.use() to be called here.
Most common reasons include:
- You are calling test.use() in a configuration file.
- You are calling test.use() in a file that is imported by the configuration file.
- You have two different versions of @playwright/test. This usually happens
when one of the dependencies in your package.json depends on @playwright/test.
Is there another API for such a use case? Or is it not supported by Playwright at the moment? I would appreciate any help!
This thread is trying to answer question "How to change the colorScheme in the middle of a test?"
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