testcases/test_delete_person.py

import streamlit.testing as stt

def test_delete_person():
    with stt.install_test_input():
        stt.test_runner.start("app.py")

        # Select the "Delete Person" option
        stt.test_input("Select Option", "Delete Person")

        # Enter the name of the person to delete
        stt.test_input("Enter Name", "John Doe")

        # Click the "Delete Person" button
        stt.test_input("Delete Person")

        # Verify the deletion message
        stt.test_output("John Doe deleted from the database!")

        # Clean up
        stt.test_runner.cleanup()

test_delete_person()