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POHow to correctly test mapping with RestKit (nested mapping, to-many)
 

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  1. POHow to correctly test mapping with RestKit (nested mapping, to-many)
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    <p>I'm trying to test response mapping of my Core Data model. I've got few classes in Core Data model but 2 of them I'm interesting to test. First class is <code>CTFUser</code> class which keep basic information about user, and the second one is a <code>CTFCharacter</code> class. User may have few characters (some sort of player) <strong>to-many relationship</strong>. What I want to do is write correctly test for <code>CTFUser</code> class and relationship between <code>CTFUser</code> and <code>CTFCharacter</code> class. When I wrote test without property <code>characters</code> which is <code>NSOrderedSet</code> type test passsed. When I try to test property <code>characters</code> without checking <code>value</code> of <code>RKPropertyMappingTestExpectation</code> test passes. But when I want to check value of this mapping I've got a crash. </p> <p><strong>JSON fixture used in test:</strong></p> <pre><code>{ "username": "tomkowz12", "email": "tmk.szlc@gmail.com", "password": "password123", "nick": "black_lord", "location": [10, 20], "characters" : [{ "type": 1, "total_time": 21, "total_score": 100, "health": 100, "level": 20, "is_active": 1 }, { "type": 2, "total_time": 23, "total_score": 98, "health": 55, "level": 12, "is_active": 0 }] } </code></pre> <p><strong>CTFUser class</strong></p> <pre><code>@interface CTFUser : CustomManagedObject @property (nonatomic, retain) NSString * email; @property (nonatomic, retain) NSString * nick; @property (nonatomic, retain) NSString * username; @property (nonatomic, retain) NSString * password; @property (nonatomic, retain) id location; @property (nonatomic, retain) CTFGame *game; @property (nonatomic, retain) NSOrderedSet *characters; + (NSDictionary *)dictionaryForResponseMapping; @end </code></pre> <p>and dictionary dictionary with attributes mapping for this class:</p> <pre><code>+ (NSDictionary *)dictionaryForResponseMapping { return @{@"username" : @"username", @"email" : @"email", @"password" : @"password", @"nick" : @"nick", @"location" : @"location"}; } </code></pre> <p><strong>CTFCharacter class</strong></p> <pre><code>@interface CTFCharacter : CustomManagedObject @property (nonatomic, retain) NSNumber * type; @property (nonatomic, retain) NSNumber * totalTime; @property (nonatomic, retain) NSNumber * totalScore; @property (nonatomic, retain) NSNumber * health; @property (nonatomic, retain) NSNumber * level; @property (nonatomic, retain) NSNumber * active; @property (nonatomic, retain) CTFUser *user; + (NSDictionary *)dictionaryResponseMapping; @end </code></pre> <p>And dictionary with attributes mapping:</p> <pre><code>+ (NSDictionary *)dictionaryResponseMapping { return @{@"type": @"type", @"total_time": @"totalTime", @"total_score": @"totalScore", @"health": @"health", @"level": @"level", @"is_active": @"active"}; } </code></pre> <p>** Unit Test ** - (void)testUserResponseMApping { id parsedJSON = [RKTestFixture parsedObjectWithContentsOfFixture:@"user-response.json"];</p> <pre><code> /// Configure mapping RKEntityMapping *userMapping = [RKEntityMapping mappingForEntityForName:NSStringFromClass([CTFUser class]) inManagedObjectStore:_manager.managedObjectStore]; [userMapping addAttributeMappingsFromDictionary:[CTFUser dictionaryForResponseMapping]]; RKEntityMapping *characterMapping = [RKEntityMapping mappingForEntityForName:NSStringFromClass([CTFCharacter class]) inManagedObjectStore:_manager.managedObjectStore]; [characterMapping addAttributeMappingsFromDictionary:[CTFCharacter dictionaryResponseMapping]]; [userMapping addRelationshipMappingWithSourceKeyPath:@"characters" mapping:characterMapping]; /// Configure expectations RKMappingTest *test = [RKMappingTest testForMapping:userMapping sourceObject:parsedJSON destinationObject:nil]; test.managedObjectContext = _service.managedObjectContext; RKPropertyMappingTestExpectation *usernameExpectation = [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"username" destinationKeyPath:@"username" value:@"tomkowz12"]; [test addExpectation:usernameExpectation]; RKPropertyMappingTestExpectation *emailExpectation = [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"email" destinationKeyPath:@"email" value:@"tmk.szlc@gmail.com"]; [test addExpectation:emailExpectation]; RKPropertyMappingTestExpectation *passwordExpectation = [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"password" destinationKeyPath:@"password" value:@"password123"]; [test addExpectation:passwordExpectation]; RKPropertyMappingTestExpectation *nickExpectation = [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"nick" destinationKeyPath:@"nick" value:@"black_lord"]; [test addExpectation:nickExpectation]; RKPropertyMappingTestExpectation *locationExpectation = [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"location" destinationKeyPath:@"location" value:@[@(10), @(20)]]; [test addExpectation:locationExpectation]; /// Configure expectation objects CTFCharacter *firstCharacter = [NSEntityDescription insertNewObjectForEntityForName:NSStringFromClass([CTFCharacter class]) inManagedObjectContext:_service.managedObjectContext]; firstCharacter.type = @(1); firstCharacter.totalTime = @(21); firstCharacter.totalScore = @(100); firstCharacter.health = @(100); firstCharacter.level = @(20); firstCharacter.active = @YES; CTFCharacter *secondCharacter = [NSEntityDescription insertNewObjectForEntityForName:NSStringFromClass([CTFCharacter class]) inManagedObjectContext:_service.managedObjectContext]; secondCharacter.type = @(2); secondCharacter.totalTime = @(23); secondCharacter.totalScore = @(98); secondCharacter.health = @(55); secondCharacter.level = @(12); secondCharacter.active = @NO; NSOrderedSet *set = [[NSOrderedSet alloc] initWithArray:@[firstCharacter, secondCharacter]]; RKPropertyMappingTestExpectation *charactersExpectation = [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"characters" destinationKeyPath:@"characters" value:set]; /// &lt;-- this won't pass // [RKPropertyMappingTestExpectation expectationWithSourceKeyPath:@"characters" destinationKeyPath:@"characters"]; /// &lt;-- this pass [test addExpectation:charactersExpectation]; [test verify]; } </code></pre> <p><strong>Crash log</strong></p> <pre><code>&lt;unknown&gt;:0: error: -[CTFUserTests testUserResponseMApping] : mapped to unexpected _NSFaultingMutableOrderedSet value 'Relationship 'characters' on managed object (0x8c4fba0) &lt;CTFUser: 0x8c4fba0&gt; (entity: CTFUser; id: 0x8c4d2a0 &lt;x-coredata:///CTFUser/t28A63306-B2D2-41F5-A0C3-1BE85520B04710&gt; ; data: { characters = ( "0x8c52470 &lt;x-coredata:///CTFCharacter/t28A63306-B2D2-41F5-A0C3-1BE85520B04711&gt;", "0x8c4d330 &lt;x-coredata:///CTFCharacter/t28A63306-B2D2-41F5-A0C3-1BE85520B04712&gt;" ); email = "tmk.szlc@gmail.com"; game = nil; location = "(\n 10,\n 20\n)"; nick = "black_lord"; password = password123; username = tomkowz12; }) with objects {( &lt;CTFCharacter: 0x8c528f0&gt; (entity: CTFCharacter; id: 0x8c52470 &lt;x-coredata:///CTFCharacter/t28A63306-B2D2-41F5-A0C3-1BE85520B04711&gt; ; data: { active = 1; health = 100; level = 20; totalScore = 100; totalTime = 21; type = 1; user = "0x8c4d2a0 &lt;x-coredata:///CTFUser/t28A63306-B2D2-41F5-A0C3-1BE85520B04710&gt;"; }), &lt;CTFCharacter: 0x8c4ef60&gt; (entity: CTFCharacter; id: 0x8c4d330 &lt;x-coredata:///CTFCharacter/t28A63306-B2D2-41F5-A0C3-1BE85520B04712&gt; ; data: { active = 0; health = 55; level = 12; totalScore = 98; totalTime = 23; type = 2; user = "0x8c4d2a0 &lt;x-coredata:///CTFUser/t28A63306-B2D2-41F5-A0C3-1BE85520B04710&gt;"; }) )}' ( 0 CoreFoundation 0x021185e4 __exceptionPreprocess + 180 1 libobjc.A.dylib 0x01e9b8b6 objc_exception_throw + 44 2 CoreFoundation 0x021a86a1 -[NSException raise] + 17 3 Capture The FlagTests 0x0a0f1d60 -[RKMappingTest verifyExpectation:] + 464 4 Capture The FlagTests 0x0a0f2054 -[RKMappingTest verify] + 404 5 Capture The FlagTests 0x0a002cf0 -[CTFUserTests testUserResponseMApping] + 3648 6 CoreFoundation 0x0210cd1d __invoking___ + 29 7 CoreFoundation 0x0210cc2a -[NSInvocation invoke] + 362 8 XCTest 0x201032bf -[XCTestCase invokeTest] + 212 9 XCTest 0x2010338d -[XCTestCase performTest:] + 111 10 XCTest 0x2010417c -[XCTest run] + 82 11 XCTest 0x20102a44 -[XCTestSuite performTest:] + 139 12 XCTest 0x2010417c -[XCTest run] + 82 13 XCTest 0x20102a44 -[XCTestSuite performTest:] + 139 14 XCTest 0x2010417c -[XCTest run] + 82 15 XCTest 0x20102a44 -[XCTestSuite performTest:] + 139 16 XCTest 0x2010417c -[XCTest run] + 82 17 XCTest 0x20105aa1 +[XCTestProbe runTests:] + 183 18 Foundation 0x01ad212c __NSFireDelayedPerform + 372 19 CoreFoundation 0x020d6bd6 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 22 20 CoreFoundation 0x020d65bd __CFRunLoopDoTimer + 1181 21 CoreFoundation 0x020be628 __CFRunLoopRun + 1816 22 CoreFoundation 0x020bdac3 CFRunLoopRunSpecific + 467 23 CoreFoundation 0x020bd8db CFRunLoopRunInMode + 123 24 GraphicsServices 0x03ade9e2 GSEventRunModal + 192 25 GraphicsServices 0x03ade809 GSEventRun + 104 26 UIKit 0x00c09d3b UIApplicationMain + 1225 27 Capture The Flag 0x00008d0d main + 141 28 libdyld.dylib 0x0275670d start + 1 ) </code></pre> <p>Where I made mistake? How should be tested value of <code>characters</code> property? Other values are under the test and passed.</p> <p>edit:</p> <p><strong>When I made a request, response from server looks good, all properties and relationships are mapped correctly</strong>, but problem with testing still occurs.</p> <pre><code>- (void)getUser { CoreDataService *_service = [CoreDataService sharedInstance]; RKManagedObjectStore *managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:_service.managedObjectModel]; _connection.manager.managedObjectStore = managedObjectStore; RKEntityMapping *userMapping = [RKEntityMapping mappingForEntityForName:NSStringFromClass([CTFUser class]) inManagedObjectStore:managedObjectStore]; [userMapping addAttributeMappingsFromDictionary:[CTFUser dictionaryForResponseMapping]]; RKEntityMapping *characterMapping = [RKEntityMapping mappingForEntityForName:NSStringFromClass([CTFCharacter class]) inManagedObjectStore:managedObjectStore]; [characterMapping addAttributeMappingsFromDictionary:[CTFCharacter dictionaryResponseMapping]]; [userMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"characters" toKeyPath:@"characters" withMapping:characterMapping]]; RKResponseDescriptor *descriptor = [RKResponseDescriptor responseDescriptorWithMapping:userMapping method:RKRequestMethodGET pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]; [_connection.manager addResponseDescriptor:descriptor]; [_connection.manager getObject:nil path:@"test" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { CTFUser *fetchedUser = (CTFUser *)mappingResult.firstObject; NSLog(@"%@", fetchedUser); } failure:^(RKObjectRequestOperation *operation, NSError *error) { NSLog(@"failure"); }]; } </code></pre> <p>Thank you in advance.</p>
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