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How to unit test abstract classes: extend with stubs?

... Write a Mock object and use them just for testing. They usually are very very very minimal (inherit from the abstract class) and not more.Then, in your Unit Test you can call the abstract method you want to test. You should test abstract class that contain some logic like all other ...
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How to iterate a loop with index and element in Swift

...100, height: 100) button.addTarget(self, action: #selector(iterate(_:)), for: .touchUpInside) view.addSubview(button) } @objc func iterate(_ sender: UIButton) { let tuple = generator.next() print(String(describing: tuple)) } } PlaygroundPage.current.liv...
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Repeat a task with a time delay?

...er()); private Runnable mStatusChecker; private int UPDATE_INTERVAL = 2000; /** * Creates an UIUpdater object, that can be used to * perform UIUpdates on a specified time interval. * * @param uiUpdater A runnable containing the update ro...
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How do you display a Toast from a background thread on Android?

... This is similar to other answers, however updated for new available apis and much cleaner. Also, does not assume you're in an Activity Context. public class MyService extends AnyContextSubclass { public void postToastMessage(final String message) { Handler handler = new Handler...
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What to do about a 11000 lines C++ source file?

...t. Move this into its own file, and for that matter into its own class, in all branches. Because it's stable, this won't cause (many) "awkward" merges that have to be applied to a different file from the one they were originally made on, when you merge the change from one branch to another. Repeat. ...
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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]

... There is no difference at all. Second representation makes query more readable and makes it look very clear as to which join corresponds to which condition. share ...
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AngularJS. How to call controller function from outside of controller component

How I can call function defined under controller from any place of web page (outside of controller component)? 10 Answers ...
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New self vs. new static

...the first method, whereas static is bound to the called class (also see get_called_class()). class A { public static function get_self() { return new self(); } public static function get_static() { return new static(); } } class B extends A {} echo get_class(B::ge...
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Postgres - FATAL: database files are incompatible with server

...an run the below command to upgrade your postgres data directory retaining all data: brew postgresql-upgrade-database The above command is taken from the output of brew info postgres share | impr...
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How to convert / cast long to String?

...which is equivalent. -> commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/…, java.lang.String) – Guillaume Husta Jul 23 '14 at 9:59 ...