[SR-3613] PlaygroundLogger test failures NSImageLogging: expected optional to be non-nil

[aschwaighofer]

Previous ID	SR-3613
Radar	rdar://29970085
Original Reporter	@aschwaighofer
Type	Bug
Status	Reopened
Resolution

Additional Detail from JIRA

Votes	0
Component/s	Xcode Playground Support
Labels	Bug
Assignee	None
Priority	Medium

md5: 54cf922917ec73340aa29ee2967651e5

Issue Description:

https://ci.swift.org/job/oss-swift-incremental-RA-osx/7872

[ RUN ] PlaygroundLogger test suite.NSImageLogging
stdout>>> check failed at /Users/buildnode/jenkins/workspace/oss-swift-incremental-RA-osx/swift-xcode-playground-support/PlaygroundLogger/PlaygroundLogger/TestInfrastructure.swift, line 181
stdout>>> expected optional to be non-nil
stderr>>> fatal error: unexpectedly found nil while unwrapping an Optional value: file /Users/buildnode/jenkins/workspace/oss-swift-incremental-RA-osx/swift-xcode-playground-support/PlaygroundLogger/PlaygroundLogger/TestInfrastructure.swift, line 182
stderr>>> Current stack trace:
stderr>>> 0 libswiftCore.dylib 0x0000000105755bb0 swift_reportError + 125
stderr>>> 1 libswiftCore.dylib 0x0000000105776760 _swift_stdlib_reportFatalErrorInFile + 100
stderr>>> 2 libswiftCore.dylib 0x000000010553d9d0 (_assertionFailure(StaticString, String, file : StaticString, line : UInt, flags : UInt32) -> Never).(closure #1).(closure #1).(closure #1) + 143
stderr>>> 3 libswiftCore.dylib 0x000000010571a5d0 partial apply for (_fatalErrorMessage(StaticString, StaticString, file : StaticString, line : UInt, flags : UInt32) -> Never).(closure #1).(closure #1).(closure #1) + 112
stderr>>> 4 libswiftCore.dylib 0x000000010553ce90 specialized specialized StaticString.withUTF8Buffer<A> ((UnsafeBufferPointer<UInt8>) -> A) -> A + 342
stderr>>> 5 libswiftCore.dylib 0x000000010571a510 partial apply for (_assertionFailure(StaticString, String, file : StaticString, line : UInt, flags : UInt32) -> Never).(closure #1).(closure #1) + 144
stderr>>> 6 libswiftCore.dylib 0x000000010553ce90 specialized specialized StaticString.withUTF8Buffer<A> ((UnsafeBufferPointer<UInt8>) -> A) -> A + 342
stderr>>> 7 libswiftCore.dylib 0x00000001056b9490 partial apply for (_fatalErrorMessage(StaticString, StaticString, file : StaticString, line : UInt, flags : UInt32) -> Never).(closure #1) + 154
stderr>>> 8 libswiftCore.dylib 0x000000010553ce90 specialized specialized StaticString.withUTF8Buffer<A> ((UnsafeBufferPointer<UInt8>) -> A) -> A + 342
stderr>>> 9 libswiftCore.dylib 0x000000010553cd40 _fatalErrorMessage(StaticString, StaticString, file : StaticString, line : UInt, flags : UInt32) -> Never + 126
stderr>>> 10 PlaygroundLogger 0x0000000105450770 static TestHelpers.unwrapOrFail<A> (A?) -> A + 759
stderr>>> 11 PlaygroundLogger 0x00000001054266a0 NSImageLoggingTestCase.doTest() -> () + 369
stderr>>> 12 PlaygroundLogger 0x0000000105426fe0 protocol witness for TestCase.doTest() -> () in conformance NSImageLoggingTestCase + 47
stderr>>> 13 PlaygroundLogger 0x0000000105450710 (playground_logger_test() -> ()).(closure #1) + 70
stderr>>> 14 libswiftStdlibUnittest.dylib 0x00000001061d1ae0 specialized TestSuite._runTest(name : String, parameter : Int?) -> () + 521
stderr>>> 15 libswiftStdlibUnittest.dylib 0x000000010616e230 _childProcess() -> () + 2141
stderr>>> 16 libswiftStdlibUnittest.dylib 0x00000001061741a0 runAllTests() -> () + 717
stderr>>> 17 PlaygroundLogger 0x000000010544e290 playground_logger_test() -> () + 7981
stderr>>> 18 PlaygroundLogger_TestDriver 0x0000000105408efb <unavailable> + 3835
stderr>>> 19 libdyld.dylib 0x00007fff95eea5ac start + 1
stderr>>> CRASHED: SIGILL
the test crashed unexpectedly
[ FAIL ] PlaygroundLogger test suite.NSImageLogging