RE: Testing Views - iOS

You do not need to know pixels. If you know the IDs you can access the widgets. This is still a unit test.

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-----Original Message-----
From: Luther Baker [email protected] [testdrivendevelopment] [[email protected]]
Received: Saturday, 31 May 2014, 7:51AM
To: [email protected] [[email protected]]
Subject: Re: [TDD] Testing Views - iOS



Screenscrape? In iOS?

I generally don't position things explicitly via pixels anymore - not with Autolayout so would be hard to tell exactly where something was to show up if I were writing the test first.

I can write a UAT test that basically gets to that screen and can expect certain behavior -- but was looking for help regarding unit tests.

Thanks,
-Luther



On Fri, May 30, 2014 at 10:11 AM, Amir Kolsky [email protected]<mailto:[email protected]> [testdrivendevelopment] <[email protected]<mailto:[email protected]>> wrote:

Can’t you just screen scrape the views, given that they are supposed to drive the screen?

From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>]
Sent: Friday, May 30, 2014 6:23 PM
To: [email protected]<mailto:[email protected]>
Subject: [TDD] Testing Views - iOS


I've essentially broken my GUI logic out into a rough MVP pattern and while I find testing the Models and Presenters straightforward, I haven't come up with a repeatable process to test drive the code in the Views.

Granted, my views are dumb and have no real business logic - but for instance, if something is disabled, I could test that certain fields are set to 'readonly', or greyed out, etc.

I generally use mocks and inject dependencies everywhere else in the app - but that isn't as feasible in the views. Buttons, toggles and segemented controls aren't something the parent view can just swap out, replace and layout correctly. Injection doesn't feel right and so, because Views are so 'self contained' - I find myself newing child components up inside of their parent views and as such, I'm not sure how to TDD them without exposing their internals somehow.

Would great appreciate some suggestions.

Thanks,
-Luther