Test-Driven Development with Python

Chapter 21. The Token Social Bit, the Page Pattern, and an Exercise for the Reader

Are jokes about how “everything has to be social now” slightly old hat? Everything has to be all A/B tested big data get-more-clicks lists of 10 Things This Inspiring Teacher Said That Will Make You Change Your Mind About Blah Blah now…anyway. Lists, be they Inspirational or otherwise, are often better shared. Let’s allow our users to collaborate on their lists with other users.

Along the way we’ll improve our FTs by starting to implement the interact/wait Selenium pattern that we learned in the last chapter. We’ll also experiment with something called the Page Object pattern.

Then, rather than showing you explicitly what to do, I’m going to let you write your unit tests and application code by yourself. Don’t worry, you won’t be totally on your own! I’ll give an outline of the steps to take, as well as some hints and tips.

An FT with Multiple Users, and addCleanup

Let’s get started—we’ll need two users for this FT:

functional_tests/test_sharing.py. 

from selenium import webdriver
from .base import FunctionalTest

def quit_if_possible(browser):
    try: browser.quit()
    except: pass


class SharingTest(FunctionalTest):

    def test_logged_in_users_lists_are_saved_as_my_lists(self):
        # Edith is a logged-in user
        self.create_pre_authenticated_session('[e-mail]')
        edith_browser = self.browser
        self.addCleanup(lambda: quit_if_possible(edith_browser))

        # Her friend Oniciferous is also hanging out on the lists site ...