Code Coverage Not Accurate in Xcode 26

Description: I’m noticing that the code coverage metrics in Xcode 26 are not accurate compared to earlier versions.

In Xcode 15, the same set of unit tests shows around 38% coverage, but in Xcode 26, even though all the tests are running successfully (for example, the SegmentedUI test cases), the code coverage is displayed as 0%.

Has anyone else observed this behavior in Xcode 26? Is there any known issue, workaround, or configuration change required to get the correct coverage report?

Environment:

Xcode 26

iOS 18 SDK

Unit tests running under XCTest

Any insights or suggestions would be appreciated.

Code Coverage Not Accurate in Xcode 26
 
 
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