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Possible Duplicate:
'isMemberOfClass' returning 'NO' when custom init
“isMemberOfClass”方法有些问题。
我有一个类，它生成并返回对象 ("MyObject")
// ObjectFactory.h
...
-(MyObject*)generateMyObject;
...
// ObjectFactory.m
...
-(MyObject*)generateMyObject
{
MyObject *obj = [[MyObject alloc]init];
obj.name = @"Whatever"; // set properties of object
return obj;
}
...
还有一个单元测试类，它调用 generateMyObject-selector 并检查返回对象的类:
...
ObjectFactory *factory = [[ObjectFactory alloc]init];
MyObject *obj = [factory generateMyObject];
if (![obj isMemeberOfclass:[MyObject class]])
STFail(@"Upps, object of wrong class returned...");
else
...
我预计，else 部分已处理...但调用了 STFail(...)，但为什么呢？
感谢您的帮助! 问候， 马特劳
好的，这是原始的复制粘贴代码:
//testcase
- (void)test001_setCostumeFirstCostume
{
NSString *xmlString = @"<Bricks.SetCostumeBrick><costumeData reference=\"../../../../../costumeDataList/Common.CostumeData\"/><sprite reference=\"../../../../..\"/></Bricks.SetCostumeBrick>";
NSError *error;
NSData *xmlData = [xmlString dataUsingEncoding:NSASCIIStringEncoding];
GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:xmlData
options:0 error:&error];
SetCostumeBrick *newBrick = [self.parser loadSetCostumeBrick:doc.rootElement];
if (![newBrick isMemberOfClass:[SetCostumeBrick class]])
STFail(@"Wrong class-member");
}
// "MyObject"
@implementation SetCostumeBrick
@synthesize indexOfCostumeInArray = _indexOfCostumeInArray;
- (void)performOnSprite:(Sprite *)sprite fromScript:(Script*)script
{
NSLog(@"Performing: %@", self.description);
[sprite performSelectorOnMainThread:@selector(changeCostume:) withObject:self.indexOfCostumeInArray waitUntilDone:true];
}
- (NSString*)description
{
return [NSString stringWithFormat:@"SetCostumeBrick (CostumeIndex: %d)", self.indexOfCostumeInArray.intValue];
}
@end
// superclass of SetCostumeBrick
@implementation Brick
- (NSString*)description
{
return @"Brick (NO SPECIFIC DESCRIPTION GIVEN! OVERRIDE THE DESCRIPTION METHOD!";
}
//abstract method (!!!)
- (void)performOnSprite:(Sprite *)sprite fromScript:(Script*)script
{
@throw [NSException exceptionWithName:NSInternalInconsistencyException
reason:[NSString stringWithFormat:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)]
userInfo:nil];
}
@end
// the "factory" (a xml-parser)
- (SetCostumeBrick*)loadSetCostumeBrick:(GDataXMLElement*)gDataSetCostumeBrick
{
SetCostumeBrick *ret = [[SetCostumeBrick alloc] init];
NSArray *references = [gDataSetCostumeBrick elementsForName:@"costumeData"];
GDataXMLNode *temp = [(GDataXMLElement*)[references objectAtIndex:0]attributeForName:@"reference"];
NSString *referencePath = temp.stringValue;
if ([referencePath length] > 2)
{
if([referencePath hasSuffix:@"]"]) //index found
{
NSString *indexString = [referencePath substringWithRange:NSMakeRange([referencePath length]-2, 1)];
ret.indexOfCostumeInArray = [NSNumber numberWithInt:indexString.intValue-1];
}
else
{
ret.indexOfCostumeInArray = [NSNumber numberWithInt:0];
}
}
else
{
ret.indexOfCostumeInArray = nil;
@throw [NSException exceptionWithName:NSInternalInconsistencyException
reason:[NSString stringWithFormat:@"Parser error! (#1)"]
userInfo:nil];
}
NSLog(@"Index: %@, Reference: %@", ret.indexOfCostumeInArray, [references objectAtIndex:0]);
return ret;
}
解决方案:
Eiko/jrturton 给了我解决方案的链接 - 谢谢:isMemberOfClass returns no when ViewController is instantiated from UIStoryboard
问题是，这些类包含在两个目标(应用程序和测试包)中
谢谢大家的帮助:)