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Xcode 5.1后运行基于XCTest的逻辑测试时看到以下错误 – 很想知道一种解决方法.
2014-03-11 12:57:42.258 xctest[25605:303] deferral properties must have a
clientID 2014-03-11 12:57:42.258 xctest[25605:303] ***
Assertion failure in -[BKSEventFocusManager
deferEventsForClientWithProperties:toClientWithProperties:],/SourceCache/BackBoardServices_Sim/SpringBoard-2618.99.15/megatrond/BKSEventFocusManager.m:63
<unknown>:0: error: -[CSAPIErrorHandlerTests testDisplayReachabilityAlert] :
props must have a valid clientID (
0 CoreFoundation 0x00b251e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x007988e5 objc_exception_throw + 44
2 CoreFoundation 0x00b25048 +[NSException raise:format:arguments:] + 136
3 Foundation 0x000114de -[NSAssertionHandler
handleFailureInMethod:object:file:lineNumber:description:] + 116
4 BackBoardServices 0x0197fece -[BKSEventFocusManager
deferEventsForClientWithProperties:toClientWithProperties:] + 154
5 UIKit 0x07a942e1 -[UIWindow _beginKeyWindowDeferral] + 176
6 UIKit 0x07a940a7 -[UIWindow _makeKeyWindowIgnoringOldKeyWindow:] + 129
7 UIKit 0x07a9400d -[UIWindow makeKeyWindow] + 41
8 UIKit 0x07a943e2 -[UIWindow makeKeyAndVisible] + 91
解决方法
我发现重现这个的最小情况如下
#import <XCTest/XCTest.h>
@interface DummyTest : XCTestCase
@end
@implementation DummyTest
- (void)setUp {
[super setUp];
// Put setup code here. This method is called before the invocation of each test method in the class.
}
- (void)tearDown {
// Put teardown code here. This method is called after the invocation of each test method in the class.
[super tearDown];
}
- (void)testExample {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title"
message:@"Message"
delegate:nil
cancelButtonTitle:@"Cancel"
otherButtonTitles:nil];
// Commenting out the next row does not cause the problem
[alert show];
XCTAssertTrue(YES);
}
@end
似乎在测试中显示UIAlertView会导致此问题.这在Xcode 5.0中有效,但在Xcode 5.1中被破坏了.
> Xcode版本5.1(5B130a)
> OSX版本10.9.2
如果您遇到此问题,请尝试上面的代码,看看它是否可重现