By Harrison D.M.
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Additional resources for About Mass-Energy Equivalence
You’re going to see different results from what I say you should see. This is a Good Thing, because it will be a genuine character-building Learning Experience™. One possibility is that I’ve given some ambiguous explanations, and you’ve done some‐ thing different from what I intended. Step back and have a think about what we’re trying to achieve at this point in the book. Which file are we editing, what do we want the user to be able to do, what are we testing and why? It may be that you’ve edited the wrong file or function, or are running the wrong tests.
Title And we could also use a try/finally to clean up the old Firefox window. But these sorts of problems are quite common in testing, and there are some ready-made solutions for us in the standard library’s unittest module. Let’s use that! py. quit() def test_can_start_a_list_and_retrieve_it_later(self): # # Edith has heard about a cool new online to-do app. TestCase. The main body of the test is in a method called test_can_start_a_list_and_re trieve_it_later. Any method whose name starts with test is a test method, and will be run by the test runner.
Py for example, which is used to store global configuration information for the site. py. That’s Django’s Swiss Army knife, and one of the things it can do is run a development server. Let’s try that now. py runserver Validating models... 1:8000/ Quit the server with CONTROL-C. 6 | Chapter 1: Getting Django Set Up Using a Functional Test Leave that running, and open another command shell. py $ Not much action on the command line, but you should notice two things: firstly, there was no ugly AssertionError and secondly, the Firefox window that Selenium popped up had a different-looking page on it.