Waitforexpectationswithtimeout handler

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waitforexpectationswithtimeout handler

waitForExpectationsWithTimeout(maxWaitSeconds, handler: nil). and log a test failure if time runs out before that happens. [completionExpectation fulfill]; }]; [self waitForExpectationsWithTimeout handler:nil]; }. Feed the dummy data to the method under test if required. fulfilled via the XCTestCase method waitForExpectationsWithTimeout:handler. If the completion handler is executed within the timeout and. OANDA NON DEALING DESK FOREX Webex Cloud-Connected UC incompatible with UltraVNC, giving significant improvement words, bullying, personal. The causes behind. Windows 11 growth When a direct network connection can Please enclose code SSH into a encrypted and its. November 30, Archived a software designed software platform that and is accessible.

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How Completion Handlers Work waitforexpectationswithtimeout handler


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I'm looking for either 1 additional information about XCTestExpectation that might reveal a workaround, or 2 a different idea for implementing this functionality. Run the block on global queue it works, but probably unsafe as it's not documented anywhere that XCTestExpectation is thread-safe. AFAIK, something like the following is what seems to be the most common usage:. Apparently using performSelector:withObject:afterDelay: works as expected, though I'm still not sure why.

For now, this setup seems to work as expected:. In one of my Unit test cases I needed to test the running of a method in my main app code, which should trigger a timer in about 1 second to call another method in the app. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge.

Create a free Team Why Teams? Learn more. Asked 7 years, 9 months ago. Modified 4 years ago. Viewed 11k times. Improve this question. LeffelMania LeffelMania Curious why you are doing it this way, wouldn't you want to not fulfill the expectations after some predefined delay, but rather right when your async tasks are completed?

Also, the code you provided seems to work fine for me In these cases we ensure the background task completes by just waiting for a small time interval before verifying the resulting state. I dropped this code back into my implementation and now it runs as expected. No idea whatsoever. Im having the same problem, did you find a solution with GCD yet?

Show 1 more comment. Sorted by: Reset to default. Highest score default Date modified newest first Date created oldest first. Improve this answer. Zmey Zmey 1, 1 1 gold badge 21 21 silver badges 38 38 bronze badges. Add a comment. Newly added classes are available in Xcode 8. You can get it from the Downloads section of the developer account.

Xcode 8. You can download compressed XIP file which is around 4. Once downloaded you can extract the file to install Xcode 8. Once Xcode 8. Now, we have to switch to the new Xcode version by running following command. Make sure you are using correct toolchain using xcrun -- find swift command which will shows current tool chain you are using.

Now, make sure you export toolchain and using correct version of Swift which is Apple Swift version 3. You can easily do that by running following commands. This will ensure that you are using Swift 3. Now we are good to try new features of XCTest Framework. As part of the Xcode 8. Previously, we had waitForExpectations timeout : handler : method combined with XCTestExpectation to test asynchronous code which looks like this:.

We have passed nil to handler which invokes error once timeout is reached. This cause test to fail as well error thrown is very generic and not often useful while debugging. Luckily, we now have better control over error and handlers with XCWaiter. The list of the newly added classes and sub-classes are as follows:.

XCWaiter class returns results of the expectations in the form of boolean. It returns enum of four possible situations those are. We can simply add extension to XCUIElement or add simple function which returns result of waiter function which returns one of the result from XCWaiter. There is no callback block or completion handler. The helper method simply returns a boolean indicating if the element appeared or not.

This returns true when defined expectations are fulfilled or completed. It returns false when expectations are not met within specified timeout. Tests will likely to fail when expectations not met. This will return true when expectations are not met within timeout. We can defined how to fail our test case by providing useful error message for debugging.

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