使用OCUnit中的核心数据类的Apple Mach-O链接器错误
CGe*_*Gee 5 xcode core-data ocunit ios
好的,这是我的测试类中的代码:
- (NSManagedObjectContext*)managedObjectContextWithConcurrencyType:(NSManagedObjectContextConcurrencyType)concurrencyType {
NSManagedObjectModel *mom = [NSManagedObjectModel mergedModelFromBundles:nil];
STAssertNotNil(mom, @"Can not create MOM from main bundle");
NSPersistentStoreCoordinator *psc = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:mom];
STAssertNotNil(psc, @"Can not create persistent store coordinator");
NSPersistentStore *store = [psc addPersistentStoreWithType:NSInMemoryStoreType configuration:nil URL:nil options:nil error:0];
STAssertNotNil(store, @"Can not create In-Memory persistent store");
NSManagedObjectContext *moc = [[NSManagedObjectContext alloc] initWithConcurrencyType:concurrencyType];
moc.persistentStoreCoordinator = psc;
return moc;
}
这是尝试在测试方法中使用该方法时的失败消息:
Undefined symbols for architecture i386:
"_NSInMemoryStoreType", referenced from:
-[CrosswordItemTests managedObjectContextWithConcurrencyType:] in CrosswordItemTests.o
"_OBJC_CLASS_$_NSEntityDescription", referenced from:
objc-class-ref in CrosswordItemTests.o
"_OBJC_CLASS_$_NSManagedObjectContext", referenced from:
objc-class-ref in CrosswordItemTests.o
"_OBJC_CLASS_$_NSManagedObjectModel", referenced from:
objc-class-ref in CrosswordItemTests.o
"_OBJC_CLASS_$_NSPersistentStoreCoordinator", referenced from:
objc-class-ref in CrosswordItemTests.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
我以为我在.h文件中导入了所需的类:
#import <CoreData/CoreData.h>
我错过了什么？
Kar*_*y S 15
根据我的经验,i386错误往往来自缺少的库.仅仅#import它们在你的文件中是不够的,你还必须将它们添加到项目库中.进入项目目标 - >构建阶段 - >链接二进制与库,在您的情况下添加与核心数据相关联的库.
- Aaaaaaaa,我不知道我必须两次链接CoreData - 首先是正常的构建目标,第二个是测试构建目标.这解决了我的问题,感谢两者! (3认同)
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