Assertion failure - which property?

[krzysztofzablocki]

Assertion failure - which property?

[krzysztofzablocki]

Hey, to be honest you shouldn't really see assertions. Are you using the current head commit ? I think this is error that happened when subobject didn't exist altogether. Can you confirm it's still happening on current head of the branch?

[simontaen]

Ok, I switched from the 2.0 release to the current head (commit 93e2ec3). Seems to be the same problem.

2013-11-10 11:00:18.412 Passions[21284:70b] **\* Assertion failure in +[KZPropertyMapper validateMapping:withValuesArray:], /Users/simon/Documents/code/ObjC/GitHub/KZPropertyMapper/KZPropertyMapper/KZPropertyMapper.m:193 2013-11-10 11:00:18.422 Passions[21284:70b] **\* Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid condition not satisfying: [key isKindOfClass:NSNumber.class]' **\* First throw call stack: ( 0 CoreFoundation 0x01d5f5e4 **exceptionPreprocess + 180 1 libobjc.A.dylib 0x01ae28b6 objc_exception_throw + 44 2 CoreFoundation 0x01d5f448 +[NSException raise:format:arguments:] + 136 3 Foundation 0x00657fee -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116 4 Passions 0x000528db __52+[KZPropertyMapper validateMapping:withValuesArray:]_block_invoke + 363 5 CoreFoundation 0x01de840c __65-[__NSDictionaryI enumerateKeysAndObjectsWithOptions:usingBlock:]_block_invoke + 76 6 CoreFoundation 0x01de832e -[__NSDictionaryI enumerateKeysAndObjectsWithOptions:usingBlock:] + 238 7 CoreFoundation 0x01d4d525 -[NSDictionary enumerateKeysAndObjectsUsingBlock:] + 53 8 Passions 0x000526ac +[KZPropertyMapper validateMapping:withValuesArray:] + 284 9 Passions 0x00052526 +[KZPropertyMapper validateMapping:withValues:] + 854 10 Passions 0x000530a6 __57+[KZPropertyMapper validateMapping:withValuesDictionary:]_block_invoke + 342 11 CoreFoundation 0x01de840c __65-[__NSDictionaryI enumerateKeysAndObjectsWithOptions:usingBlock:]_block_invoke + 76 12 CoreFoundation 0x01de832e -[__NSDictionaryI enumerateKeysAndObjectsWithOptions:usingBlock:] + 238 13 CoreFoundation 0x01d4d525 -[NSDictionary enumerateKeysAndObjectsUsingBlock:] + 53 14 Passions 0x00052e96 +[KZPropertyMapper validateMapping:withValuesDictionary:] + 278 15 Passions 0x000524e9 +[KZPropertyMapper validateMapping:withValues:] + 793 16 Passions 0x0004f646 +[KZPropertyMapper mapValuesFrom:toInstance:usingMapping:errors:] + 182 17 Passions 0x0004f528 +[KZPropertyMapper mapValuesFrom:toInstance:usingMapping:] + 184 18 Passions 0x0005584b -[LFMAlbumInfo initWithJson:] + 2635 19 Passions 0x0005ea22 __57-[LastFmFetchr getInfoForAlbum:byArtist:mbid:completion:]_block_invoke_2 + 146 20 Passions 0x0005f96a -[LastFmFetchr handleRequestSuccess:task:methodParamValue:jsonContentKey:success:failure:] + 1066 21 Passions 0x0005e90b __57-[LastFmFetchr getInfoForAlbum:byArtist:mbid:completion:]_block_invoke + 363 22 Passions 0x00017697 __55-[AFHTTPSessionManager GET:parameters:success:failure:]_block_invoke + 231 23 Passions 0x0003a375 __72-[AFURLSessionManagerTaskDelegate URLSession:task:didCompleteWithError:]_block_invoke_2 + 213 24 libdispatch.dylib 0x0295d7f8 _dispatch_call_block_and_release + 15 25 libdispatch.dylib 0x029724b0 _dispatch_client_callout + 14 26 libdispatch.dylib 0x0296075e _dispatch_main_queue_callback_4CF + 340 27 CoreFoundation 0x01dc4a5e __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE** + 14 28 CoreFoundation 0x01d056bb __CFRunLoopRun + 1963 29 CoreFoundation 0x01d04ac3 CFRunLoopRunSpecific + 467 30 CoreFoundation 0x01d048db CFRunLoopRunInMode + 123 31 GraphicsServices 0x02f629e2 GSEventRunModal + 192 32 GraphicsServices 0x02f62809 GSEventRun + 104 33 UIKit 0x00c75d3b UIApplicationMain + 1225 34 Passions 0x0000258d main + 141 35 libdyld.dylib 0x02c0470d start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException

[krzysztofzablocki]

Can you share the source dictionary and mapping you are using so that I can reproduce it?

[simontaen]

Sure. I created a short class which produces the error. Call it using [[LFMTesting alloc] initForTesting];. It breaks down in KZPropertyMapper:185 where it falsely assumes that values is an array. It is not an array because the API returns a white space String when there is no data instead of an array, as it does when there is data.

Download LFMTesting

[simontaen]

BTW: I found a workaround. I use the mapping
@"toptags" : KZCall(tagsFromDictionary:, topTags)

and catch the empty case in my tagsFromDictionary:.