test weirdness

 I suspect it's related to linking…  
 So, a while back Orlando had fixed some things in Foundation (which still haven't been merged yet).  
 The symptom is that you'll get an error from unwrapping a nil.  
 When I test OSULogger (b, in the example above) without the patched Foundation I get the error.  
 Once I patched it, the tests pass.  Then, with the same libraries and everything, 
 if I pull in OSUOpenCL (a) which depends on OSULogger, the tests in logger fail in the 
 same way as the unpatched Foundation
 
 wdillon@beast:~/OSULogger$ swift test
Compiling Swift Module 'OSULoggertest' (2 sources)
Linking test-Package.xctest
Test Case 'OSULogger_TestComplete.testSeverityComparable' started.
Test Case 'OSULogger_TestComplete.testSeverityComparable' passed (0.0 seconds).
Test Case 'OSULogger_TestComplete.testLoggerEquivalence' started.
Test Case 'OSULogger_TestComplete.testLoggerEquivalence' passed (0.0 seconds).
Test Case 'OSULogger_TestComplete.testSharedLogger' started.
Test Case 'OSULogger_TestComplete.testSharedLogger' passed (0.0 seconds).
Test Case 'OSULogger_TestComplete.testPerformanceXMLLoad' started.
Test Case 'OSULogger_TestComplete.testPerformanceXMLLoad' passed (0.005 seconds).
Test Case 'OSULogger_TestComplete.testPerformanceJSONLoad' started.
Test Case 'OSULogger_TestComplete.testPerformanceJSONLoad' passed (0.004 seconds).
Test Case 'OSULogger_TestComplete.testPerformanceXMLWrite' started.
Test Case 'OSULogger_TestComplete.testPerformanceXMLWrite' passed (0.003 seconds).
Test Case 'OSULogger_TestComplete.testPerformanceJSONWrite' started.
Test Case 'OSULogger_TestComplete.testPerformanceJSONWrite' passed (0.001 seconds).
Test Case 'OSULogger_TestComplete.testStringFromXML' started.
Test Case 'OSULogger_TestComplete.testStringFromXML' passed (0.001 seconds).
Test Case 'OSULogger_TestComplete.testXMLReadAndWrite' started.
Test Case 'OSULogger_TestComplete.testXMLReadAndWrite' passed (0.008 seconds).
Executed 9 tests, with 0 failures (0 unexpected) in 0.021 (0.149) seconds
Test Case 'OSULogger_TestSimple.testSimple' started.
Test Case 'OSULogger_TestSimple.testSimple' passed (0.0 seconds).
Executed 1 test, with 0 failures (0 unexpected) in 0.0 (0.0) seconds
Total executed 10 tests, with 0 failures (0 unexpected) in 0.021 (0.149) seconds

wdillon@beast:~/OSUOpenCL$ swift test
Linking test-Package.xctest
Test Case 'OSULogger_TestComplete.testSeverityComparable' started.
fatal error: unexpectedly found nil while unwrapping an Optional value
Current stack trace:
/usr/lib/swift/linux/libswiftCore.so(swift_reportError+0x8b) [0x7f03e4e877eb]
/usr/lib/swift/linux/libswiftCore.so(_swift_stdlib_reportFatalError+0x3d) [0x7f03e4e9856d]
/usr/lib/swift/linux/libswiftCore.so(+0x23b5df) [0x7f03e4de05df]
/usr/lib/swift/linux/libswiftCore.so(function signature specialization <Arg[0] = Exploded, Arg[1] = Exploded, Arg[2] = Dead, Arg[3] = Dead> of Swift._fatalErrorMessage (Swift.StaticString, Swift.StaticString, Swift.StaticString, Swift.UInt, flags : Swift.UInt32) -> ()+0x34) [0x7f03e4de06e4]
/home/wdillon/OSUOpenCL/.build/debug/test-Package() [0x40d8da]
/home/wdillon/OSUOpenCL/.build/debug/test-Package() [0x40d125]
/home/wdillon/OSUOpenCL/.build/debug/test-Package() [0x413a32]
/usr/lib/swift/linux/libXCTest.so(+0x151e8) [0x7f03e413e1e8]
/usr/lib/swift/linux/libXCTest.so(+0x15bdf) [0x7f03e413ebdf]
/usr/lib/swift/linux/libXCTest.so(+0x14b9a) [0x7f03e413db9a]
/usr/lib/swift/linux/libXCTest.so((extension in XCTest):XCTest.XCTestCase.invokeTest () -> ()+0x176) [0x7f03e413d666]
/usr/lib/swift/linux/libXCTest.so(+0x17ab0) [0x7f03e4140ab0]
/usr/lib/swift/linux/libXCTest.so(+0x14b9a) [0x7f03e413db9a]
/usr/lib/swift/linux/libXCTest.so(XCTest.XCTMain (Swift.Array<XCTest.XCTestCase>) -> ()+0x5a) [0x7f03e41402aa]
/home/wdillon/OSUOpenCL/.build/debug/test-Package() [0x40a542]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f03e2f40ec5]
/home/wdillon/OSUOpenCL/.build/debug/test-Package() [0x40a3b9]

It's failing to find the exemplar files