Pytest 在测试中出现警报提示

Question

I am trying to delete post in a test that fails with error: NameError: name 'window' is not defined. How can I Implement the alert prompt and choose ok, then return to homepage(/)?

"""Delete Post"""

def test_delete(client, auth, app):
    auth.login()
    response = client.post('/1/delete')
    assert window.alert("Are you sure?");
    assert response.headers["Location"] == "/"

    with app.app_context():
        db = get_db()
        post = db.execute('SELECT * FROM post WHERE id = 1').fetchone()
        assert post is None```

Answer 1

Looks like you're trying to test JS window.alert in pytest. Unfortunately this is not possible. JS behavior should be tested with JS tools like Jest. Pytest can only strictly test backend behaviors and when testing template rendering, the JS portion of the template is not executed.

It's also possible to test both, backend and frontend behavior, with end-to-end test tools like Selenium or Cypress.