How to make UITests-Runner able to access privacy-sensitive data

Question

I'm running an UITests case w/ UIImageWriteToSavedPhotosAlbum() to save my test screenshot to Photos Album:

- (void)testExample
{
  XCUIScreenshot *screenshot = [_app screenshot];
  UIImageWriteToSavedPhotosAlbum(screenshot.image, nil, nil, nil);
}

but it crashed w/ error:

... XXXUITests-Runner[53905:8592232] [access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSPhotoLibraryAddUsageDescription key with a string value explaining to the user how the app uses this data.

I've provided both NSPhotoLibraryUsageDescription & NSPhotoLibraryAddUsageDescription to my UITest Target & App Target.

Searched for a while, I can't figure out a way to let the UITests-Runner able to save image to Photos app so far, no UI level to let me press to allow it.

So, how can I achieve this, ie, make UITests-Runner able to access privacy-sensitive data (Photos in this case)?

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Sample Project Available Here:

UITestRunnerIssueDemo

And below is the related error detail:

Test Suite 'All tests' started at 2018-05-10 11:30:37.693
Test Suite 'UITestRunnerIssueDemoUITests.xctest' started at 2018-05-10 11:30:37.694
Test Suite 'UITestRunnerIssueDemoUITests' started at 2018-05-10 11:30:37.694
Test Case '-[UITestRunnerIssueDemoUITests testExample]' started.
t = 0.00s Start Test at 2018-05-10 11:30:37.695
t = 0.05s Set Up
t = 0.06s Open com.kjuly.UITestRunnerIssueDemo
t = 0.10s Launch com.kjuly.UITestRunnerIssueDemo
t = 3.08s Wait for com.kjuly.UITestRunnerIssueDemo to idle
t = 6.10s Find the Target Application 0x60c0000dd5e0
t = 6.25s Tear Down
2018-05-10 11:30:43.948541+0800 UITestRunnerIssueDemoUITests-Runner[53905:8592232] [access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSPhotoLibraryAddUsageDescription key with a string value explaining to the user how the app uses this data.

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Btw, I know I can get the UITests screenshot that auto saved under AppData/Library/Snapshots folder, but it'll be convenient if I can get it from Photos Album, especially when doing so in real device, I'm not willing to download the App Container every time just for getting those screenshots (and also, I need high quality screenshot that saved).

Answer 1

I have exact same issue now, temporary workaround that work for me is to put the image save code:

  UIImageWriteToSavedPhotosAlbum(screenshot.image, nil, nil, nil);

inside the app code like when you run it in debug mode.