Best Practices: Using global fixtures and intercepts to test adding new data

[groovenectar]

Say there is a fixture of users, and an XHR request adds a new user... then it's necessary to check that a listing table has the newly faked added user.

The route/endpoint for the intercept is still the same, e.g. /api/users/list, but it will have to temporarily return a different fixture that contains the newly-added user.

The intercepts would not be defined in test files, but rather in a global suite of commands using intercepts and fixtures that create test responses for the entire application.

Would this be a common use case to test adding data? Is there a way to make an internal session for Cypress to tell the intercepts to return the appropriate fixture with added data, or are there any best practices for this scenario?