无法在iOS设备上运行XCTests

问题描述：

我最近注意到我无法在iOS设备上运行测试。我已经试过两个的iPhone 5和iPhone 6都失败，这样的错误：无法在iOS设备上运行XCTests

2015-07-13 12:32:26.930 MyApp[1316:735999] Error loading /private/var/mobile/Containers/Data/Application/B23BED3F-5D59-4727-9AAB-1155A3F3A8F2/tmp/MyApp Tests.xctest/MyApp Tests: dlopen(/private/var/mobile/Containers/Data/Application/B23BED3F-5D59-4727-9AAB-1155A3F3A8F2/tmp/MyApp Tests.xctest/MyApp Tests, 262): no suitable image found. Did find: 
    /private/var/mobile/Containers/Data/Application/B23BED3F-5D59-4727-9AAB-1155A3F3A8F2/tmp/MyApp Tests.xctest/MyApp Tests: mmap() error 1 at address=0x0042C000, size=0x00099000 segment=__TEXT in Segment::map() mapping /private/var/mobile/Containers/Data/Application/B23BED3F-5D59-4727-9AAB-1155A3F3A8F2/tmp/MyApp Tests.xctest/MyApp Tests 
DevToolsBundleInjection: Error loading bundle '/private/var/mobile/Containers/Data/Application/B23BED3F-5D59-4727-9AAB-1155A3F3A8F2/tmp/MyApp Tests.xctest'

其他所有的测试错误，我在这个格式，网上能找到的是代码签名错误。这似乎并非是这里的情况...

与这样的其他错误，测试等待一两分钟，然后失败，这样的转储：

* thread #1: tid = 0xb3aff, 0x33d0e474 libsystem_kernel.dylib`mach_msg_trap + 20, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP 
    * frame #0: 0x33d0e474 libsystem_kernel.dylib`mach_msg_trap + 20 
    frame #1: 0x33d0e26c libsystem_kernel.dylib`mach_msg + 40 
    frame #2: 0x24fc7572 CoreFoundation`__CFRunLoopServiceMachPort + 146 
    frame #3: 0x24fc5b18 CoreFoundation`__CFRunLoopRun + 1016 
    frame #4: 0x24f12200 CoreFoundation`CFRunLoopRunSpecific + 476 
    frame #5: 0x24f12012 CoreFoundation`CFRunLoopRunInMode + 106 
    frame #6: 0x2c9e3200 GraphicsServices`GSEventRunModal + 136 
    frame #7: 0x286dea08 UIKit`UIApplicationMain + 1440 
    frame #8: 0x000ececc MyApp`main(argc=10, argv=0x003f0488) + 108 at main.m:16 

    thread #2: tid = 0xb3b16, 0x33d0e224 libsystem_kernel.dylib`kevent64 + 24, queue = 'com.apple.libdispatch-manager' 
    frame #0: 0x33d0e224 libsystem_kernel.dylib`kevent64 + 24 
    frame #1: 0x33c430f0 libdispatch.dylib`_dispatch_mgr_invoke + 280 
    frame #2: 0x33c37d3a libdispatch.dylib`_dispatch_mgr_thread + 38 


*** Canceling tests due to timeout in Waiting for test process to check in... If you believe this error represents a bug, please attach the log file at /var/folders/yz/xbdghvnj1_7fhsrwl5v232b40000gn/T/com.apple.dt.XCTest-status/Session-2015-07-13_12:31:55-JkrDBi.log

任何想法，为什么这可能会发生？

答

所以......尽管我相信相反，这是一个代码签名问题。在Xcode上手动设置测试目标（不是产品目标）的配置文件已通过设备启动并运行。

与iOS模拟器相比，测试失败的方式出乎意料（与信号量有关），但这是一个完全不同的讨论。

希望这有助于某人。

无法在iOS设备上运行XCTests

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