I'm trying to update a project from Xcode 11.1 to 11.6. When a test step fails, instead of reporting a failure, an exception is thrown (see below).
There are changes coming to test error reporting with Xcode 12, but that shouldn't affect 11.6. The issue could either be in XCTest-Gherkin or a "bug" in XCTest itself. Not sure if this exception is new, so it might be just not handled somewhere.
Stack trace:
*** Terminating app due to uncaught exception '_XCTestCaseInterruptionException', reason: 'Interrupting test'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff23e3de6e __exceptionPreprocess + 350
1 libobjc.A.dylib 0x00007fff512539b2 objc_exception_throw + 48
2 CoreFoundation 0x00007fff23e3dcac +[NSException raise:format:] + 188
3 XCTest 0x000000010f011362 -[XCTestCase(Failures) _recordFailureWithDescription:inFile:atLine:expected:] + 487
4 XCTest 0x000000010efb60ed -[XCTestCase recordFailureWithDescription:inFile:atLine:expected:] + 66
5 XCTest_Gherkin 0x0000000113e3a2d1 $s14XCTest_Gherkin0B5StateC8testCase_22didFailWithDescription6inFile6atLineySo0aE0C_S2SSgSitF + 1313
6 XCTest_Gherkin 0x0000000113e3a5dd $s14XCTest_Gherkin0B5StateC8testCase_22didFailWithDescription6inFile6atLineySo0aE0C_S2SSgSitFTo + 285
7 XCTest 0x000000010efce9a0 -[XCTestObservationCenter _testCaseDidFail:withDescription:inFile:atLine:] + 578
8 XCTest 0x000000010efab10c -[XCTestCaseRun recordFailureWithDescription:inFile:atLine:expected:] + 161
9 XCTest 0x000000010f01123a -[XCTestCase(Failures) _recordFailureWithDescription:inFile:atLine:expected:] + 191
10 XCTest 0x000000010efb60ed -[XCTestCase recordFailureWithDescription:inFile:atLine:expected:] + 66
11 XCTest 0x000000010f01093b -[XCTestCase(Failures) _dequeueFailures] + 859
12 XCTest 0x000000010f010dfb -[XCTestCase(Failures) _enqueueFailureWithDescription:inFile:atLine:expected:interruptTest:breakWhenDequeued:] + 803
13 XCTest 0x000000010efc504c _XCTFailureHandler + 516
14 XCTest 0x000000010efc55e7 _XCTPreformattedFailureHandler + 155
15 libXCTestSwiftSupport.dylib 0x000000011e81d56b $s6XCTest13XCTAssertTrue__4file4lineySbyKXK_SSyXKs12StaticStringVSutF + 1179
16 App-UITests-Runner 0x0000000111227547 $s13appUITest28ScreenStepsC06defineF0yyFySicfU4_ + 199
17 App-UITests-Runner 0x000000011122767f $sSiIegy_SiIegn_TR + 15
18 XCTest_Gherkin 0x0000000113e30efb $s14XCTest_Gherkin11StepDefinerC4step_4file4line1fySS_SSSiyxctAA26MatchedStringRepresentableRzlFyAA0C7MatchesVySSGcfU_ + 1003
19 XCTest_Gherkin 0x0000000113e30fcc $s14XCTest_Gherkin11StepDefinerC4step_4file4line1fySS_SSSiyxctAA26MatchedStringRepresentableRzlFyAA0C7MatchesVySSGcfU_TA + 60
20 XCTest_Gherkin 0x0000000113e42914 $sSo10XCTestCaseC0A8_GherkinE11performStep_7keyword4file4lineySS_S2SSitFySo11XCTActivity_pXEfU0_ + 900
21 XCTest_Gherkin 0x0000000113e42b43 $sSo10XCTestCaseC0A8_GherkinE11performStep_7keyword4file4lineySS_S2SSitFySo11XCTActivity_pXEfU0_TA + 51
22 XCTest_Gherkin 0x0000000113e42b5f $sSo11XCTActivity_ps5Error_pIggzo_SoAA_pytsAB_pIeggrzo_TR + 15
23 XCTest_Gherkin 0x0000000113e42bb4 $sSo11XCTActivity_ps5Error_pIggzo_SoAA_pytsAB_pIeggrzo_TRTA + 20
24 libXCTestSwiftSupport.dylib 0x000000011e819e48 $sSo10XCTContextC6XCTestE11runActivity5named5blockxSS_xSo11XCTActivity_pKXEtKlFZxyKXEfU_ + 152
25 libXCTestSwiftSupport.dylib 0x000000011e819ea1 $sSo10XCTContextC6XCTestE11runActivity5named5blockxSS_xSo11XCTActivity_pKXEtKlFZxyKXEfU_TA + 33
26 libswiftObjectiveC.dylib 0x000000011f303c6e $s10ObjectiveC15autoreleasepool8invokingxxyKXE_tKlF + 46
27 libXCTestSwiftSupport.dylib 0x000000011e819d45 $sSo10XCTContextC6XCTestE11runActivity5named5blockxSS_xSo11XCTActivity_pKXEtKlFZ + 197
28 XCTest_Gherkin 0x0000000113e41f26 $sSo10XCTestCaseC0A8_GherkinE11performStep_7keyword4file4lineySS_S2SSitF + 6390
29 XCTest_Gherkin 0x0000000113e42c82 $sSo10XCTestCaseC0A8_GherkinE11performStep_7keyword4file4lineySS_S2SSitFTo + 194
30 XCTest_Gherkin 0x0000000113e3dfde $sSo10XCTestCaseC0A8_GherkinE4Then_4file4lineySS_SSSitF + 254
31 XCTest_Gherkin 0x0000000113e3e0aa $sSo10XCTestCaseC0A8_GherkinE4Then_4file4lineySS_SSSitFTo + 138
32 App-UITests-Runner 0x0000000111639002 $s13appUITest23AppFeatureC66test_caseyyF + 2722
33 App-UITests-Runner 0x000000011163910b $s13appUITest23AppFeatureC66test_caseyyFTo + 43
34 CoreFoundation 0x00007fff23e44dec __invoking___ + 140
35 CoreFoundation 0x00007fff23e41fd1 -[NSInvocation invoke] + 321
36 XCTest 0x000000010efb6fa7 __24-[XCTestCase invokeTest]_block_invoke_2 + 52
37 XCTest 0x000000010efb6f53 __24-[XCTestCase invokeTest]_block_invoke.206 + 320
38 XCTest 0x000000010f011d32 +[XCTestCase(Failures) performFailableBlock:testCase:testCaseRun:shouldInterruptTest:] + 69
39 XCTest 0x000000010f011c44 -[XCTestCase(Failures) _performTurningExceptionsIntoFailuresInterruptAfterHandling:block:] + 115
40 XCTest 0x000000010efb6966 -[XCTestCase invokeTest] + 1183
41 XCTest 0x000000010efb8299 __26-[XCTestCase performTest:]_block_invoke_2 + 43
42 XCTest 0x000000010f011d32 +[XCTestCase(Failures) performFailableBlock:testCase:testCaseRun:shouldInterruptTest:] + 69
43 XCTest 0x000000010f011c44 -[XCTestCase(Failures) _performTurningExceptionsIntoFailuresInterruptAfterHandling:block:] + 115
44 XCTest 0x000000010efb81d0 __26-[XCTestCase performTest:]_block_invoke.359 + 86
45 XCTest 0x000000010f02497d +[XCTContext runInContextForTestCase:block:] + 211
46 XCTest 0x000000010efb7a84 -[XCTestCase performTest:] + 566
47 XCTest 0x000000010effe2fe -[XCTest runTest] + 57
48 XCTest 0x000000010efb1cc0 __27-[XCTestSuite performTest:]_block_invoke + 354
49 XCTest 0x000000010efb1412 __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
50 XCTest 0x000000010f02497d +[XCTContext runInContextForTestCase:block:] + 211
51 XCTest 0x000000010efb13c9 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 148
52 XCTest 0x000000010efb172e -[XCTestSuite performTest:] + 348
53 XCTest 0x000000010effe2fe -[XCTest runTest] + 57
54 XCTest 0x000000010efb1cc0 __27-[XCTestSuite performTest:]_block_invoke + 354
55 XCTest 0x000000010efb1412 __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
56 XCTest 0x000000010f02497d +[XCTContext runInContextForTestCase:block:] + 211
57 XCTest 0x000000010efb13c9 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 148
58 XCTest 0x000000010efb172e -[XCTestSuite performTest:] + 348
59 XCTest 0x000000010effe2fe -[XCTest runTest] + 57
60 XCTest 0x000000010efb1cc0 __27-[XCTestSuite performTest:]_block_invoke + 354
61 XCTest 0x000000010efb1412 __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
62 XCTest 0x000000010f02497d +[XCTContext runInContextForTestCase:block:] + 211
63 XCTest 0x000000010efb13c9 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 148
64 XCTest 0x000000010efb172e -[XCTestSuite performTest:] + 348
65 XCTest 0x000000010effe2fe -[XCTest runTest] + 57
66 XCTest 0x000000010f033e84 __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke + 171
67 XCTest 0x000000010f033f71 __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke.100 + 96
68 XCTest 0x000000010efcc6b6 -[XCTestObservationCenter _observeTestExecutionForBlock:] + 682
69 XCTest 0x000000010f033c0f -[XCTTestRunSession runTestsAndReturnError:] + 615
70 XCTest 0x000000010ef956b4 -[XCTestDriver runTestsAndReturnError:] + 456
71 XCTest 0x000000010f0205bc _XCTestMain + 2496
72 App-UITests-Runner 0x000000010eda2e1a -[_XCTRunnerAppDelegate applicationWillResignActive:] + 0
73 App-UITests-Runner 0x000000010eda2d18 _XCTRunnerRunTests + 0
74 CoreFoundation 0x00007fff23da1abc __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
75 CoreFoundation 0x00007fff23da11b3 __CFRunLoopDoBlocks + 195
76 CoreFoundation 0x00007fff23d9bfa3 __CFRunLoopRun + 995
77 CoreFoundation 0x00007fff23d9b8a4 CFRunLoopRunSpecific + 404
78 GraphicsServices 0x00007fff38c39bbe GSEventRunModal + 139
79 UIKitCore 0x00007fff49325968 UIApplicationMain + 1605
80 App-UITests-Runner 0x000000010eda2fd5 main + 183
81 libdyld.dylib 0x00007fff520ce1fd start + 1
)
libc++abi.dylib: terminating with uncaught exception of type _XCTestCaseInterruptionException
The workaround I found for Xcode 11.6 is to remove
continueAfterFailure = false. This issue has been resolved in the Xcode 12 betas.