Can't run iOS unit or UI tests with Xcode Version 9.3 (9E145)

Since updating to Xcode 9.3, I can no longer run unit or UI tests on iOS apps. I've wiped Xcode and reinstalled it to no avail. To test it I created two new iOS projects from the single view template and included either unit or UI tests.


When I run the tests, the build succeeds and launches the tests. For the UI tests, the test-runner crashes with an assertion failure trying to load a UITestUITests.xctest plugin, for unit tests, the test fails without running any tests complaining “Unable to initialize test bundle from file:///Users/…/UnitTest.app/PlugIns/UnitTestTests.xctest/”.


These plugin files all exist.


Radar #39236687

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Nick Nallick
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Would those qualify as iOS framework unit tests?

Posted by
KMT
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FWIW, this appears to be a problem with the simulator or its configuration. The tests run correctly on a physical device. Perhaps there's some kind of cruft left over from installing the new Xcode on top of the old one, or there's some kind of file permissions problem.

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Nick Nallick
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Edit scheme -> Test -> press the + button and add the test (choose test targets to add to this scheme)

Posted by
Bun-chan
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