Use case: Verify intermediate results during a flow
Asserts can be used to verify that certain steps in a flow completed successfully. For example, if your flow submits a form, you can use Assert to check that some success text (e.g. "Your form was submitted successfully!") appears on the page.
Use case: End-to-end testing
Asserts can be used to test functionality in websites and web apps. For example, if you wanted to create a test to ensure that clicking the "Sign up" button on your home page takes the user to the sign up page, you can use Assert to check the result of Get Page URL after clicking the button.