Looks like this bug is fixed in XCode9. Thanks coryalder

Test case for missing UI Test Coverage. The problem/potential solution is detailed here by thelvis4.

Open Radar

Still bugged in:

• XCode 7.3.1
• XCode 8.1 with Swift 3 (thanks raven)
• Xcode 8.2 with Swift 3
• Xcode 8.3.2 (michaellady)

Coverage report for tests run via xcodebuild CLI do not include the coverage from UI tests. Tests run from XCode IDE however do include the coverage from UI Tests

Running the the tests from XCode IDE (This is the Expected Behavior)

1. Run from XCode IDE (Product -> Test, or Command+U)
2. Generate code coverage. Replace with path to your Coverage.profdata

• xcrun llvm-cov report -instr-profile /Users/wyu/Library/Developer/Xcode/DerivedData/UITestCoverageBug-gmabjwcdjgubltcmkzrskeqbhvcw/Build/Intermediates/CodeCoverage/Coverage.profdata /Users/wyu/Library/Developer/Xcode/DerivedData/UITestCoverageBug-gmabjwcdjgubltcmkzrskeqbhvcw/Build/Intermediates/CodeCoverage/Products/Debug-iphonesimulator/UITestCoverageBug.app/UITestCoverageBug

Filename	Regions	Miss	Cover	Functions	Executed
/Users/wyu/sandbox/iwllyu-github/UITestCoverageBug/UITestCoverageBug/AppDelegate.swift	6	4	33.33%	6	33.33%
/Users/wyu/sandbox/iwllyu-github/UITestCoverageBug/UITestCoverageBug/ViewController.swift	5	1	80.00%	5	80.00%
TOTAL	11	5	54.55%	11	54.55%

---

Running the tests from xcodebuild CLI (Bugged Behavior, Coverage.profdata does not include coverage for UI Tests)

1. Build the project

xcodebuild clean test -scheme UITestCoverageBug \
    -project UITestCoverageBug.xcodeproj \
    -configuration Debug \
    -destination 'platform=iOS Simulator,name=iPhone 6,OS=9.3' \
    -enableCodeCoverage YES

2. Generate code coverage. Replace with path to your Coverage.profdata

• xcrun llvm-cov report -instr-profile /Users/wyu/Library/Developer/Xcode/DerivedData/UITestCoverageBug-gmabjwcdjgubltcmkzrskeqbhvcw/Build/Intermediates/CodeCoverage/Coverage.profdata /Users/wyu/Library/Developer/Xcode/DerivedData/UITestCoverageBug-gmabjwcdjgubltcmkzrskeqbhvcw/Build/Intermediates/CodeCoverage/Products/Debug-iphonesimulator/UITestCoverageBug.app/UITestCoverageBug

Filename	Regions	Miss	Cover	Functions	Executed
/Users/wyu/sandbox/iwllyu-github/UITestCoverageBug/UITestCoverageBug/AppDelegate.swift	6	4	33.33%	6	33.33%
/Users/wyu/sandbox/iwllyu-github/UITestCoverageBug/UITestCoverageBug/ViewController.swift	5	3	40.00%	5	40.00%
TOTAL	11	7	36.36%	11	36.36%