If the completion handler is executed within the timeout and calls fulfill, The test framework to wait (with a timeout) for its expectations to beįulfilled via the XCTestCase method waitForExpectationsWithTimeout:handler. Setting a flag like responseHasArrived in the previous example. With a call to the XCTestExpectation method fulfill.
IOS 10 XCODE 6 CODE
Our test code fulfills the expectation in the completion block The testing framework expects that it will be fulfilled at some point in With Xcode 6, Apple has added test expectations to the XCTest framework in theįorm of the XCTestExpectation class.
IOS 10 XCODE 6 SOFTWARE
Software development world-but it’s not great. Until the response arrives, or until 5 seconds elapses without it havingĪrrived.
The while loop runs the main thread’s run loop for 10 milliseconds at a time The test method will return without giving theĬompletionHandler block a chance to be called. Great API, but again, we’re breaking some rules. We can give the class under test a URL and completion handler block,Īnd it will download the page and call the block, passing in a stringĬontaining the web page or an empty string if a failure occurs. Instead, we’d stub out the requests using someīut for the purposes of these examples, we’ll break some rules and make real web Normally, we wouldn’t want to makeĪctual web requests in tests. Going to exit before the assertions are ever tested.Ī test for a class that downloads web pages. Response received nor has our completion block been called, our test method is However, because the web request hasn’t even been made yet, much less a
We could kick off a web request and pass in a completionīlock, then make our test assertions, either in the completion handler or If we have a test that has to kick off an asynchronous task, whether it runs inĪnother thread or in the main thread’s runloop, how do we test it?Ĭonsider a web request. Glad to see is support for asynchronous testing. With Xcode 6 that were missing from last year’s update. Tools getting some love again, and this year, Apple is shipping a few features The old framework hadn’t been updated in years,Īnd a number of third-party testing tools and frameworks had sprung up to In 2013, Apple shipped a revamped testing framework in Xcode called XCTest,Īnd there was much rejoicing.
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