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Explain the “setUp” and “tearDown” Python methods used in test cases

...requisite steps to setUp and all clean-up steps to tearDown. You can read more with examples here. When a setUp() method is defined, the test runner will run that method prior to each test. Likewise, if a tearDown() method is defined, the test runner will invoke that method after each test....
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Javascript Functions and default parameters, not working in IE and Chrome

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Android: Specify two different images for togglebutton using XML

...itch would always select the "right one" regardless of order, this behaves more like a lengthy if-elseif-elseif-else with conditions like state_x == true && state_y == false && state_z = true. – TWiStErRob Dec 18 '14 at 10:46 ...
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Timertask or Handler

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Scala actors: receive vs react

...y setting the system property actors.maxPoolSize to find out). One of the more obvious reasons why it is necessary to discard the call stack is that otherwise the loop method would end in a StackOverflowError. As it is, the framework rather cleverly ends a react by throwing a SuspendActorException,...
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Can TCP and UDP sockets use the same port?

...e normal socket and bind calls you also have to listen and accept. Furthermore that accept call will return a new socket and it's that socket that you'll then have to also poll for receive events. Your server should be prepared to continue accepting connections on the original socket whilst simult...
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How to swap keys and values in a hash

... each_with_object makes more sense here than inject. – Andrew Marshall Jun 12 '12 at 3:35 ...
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Handling Touch Event in UILabel and hooking it up to an IBAction

...ller and then displaying it, the touches don't seem to get to the label anymore. Any Ideas? – midas06 Jul 23 '10 at 14:03 ...
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Handling warning for possible multiple enumeration of IEnumerable

...f you try to refactor your code to use interfaces, for instance to make it more testable and friendly to dynamic proxying. The key point is that IList<T> does not inherit from IReadOnlyList<T>, and similarly for other collections and their respective read-only interfaces. (In short, this...
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Is there an alternative sleep function in C to milliseconds?

... This wont sleep for milliseconds and also introduces much more overhead, which makes the timing even more unreliable. – Devolus Nov 14 '18 at 7:02 1 ...