isMemberOfClass doesn't work as expected with ocunit [duplicate] - objective-c

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Closed 10 years ago.
Possible Duplicate:
'isMemberOfClass' returning 'NO' when custom init
I've some trouble with the "isMemberOfClass"-Method.
I have a class, that generates and returns objects ("MyObject")
// ObjectFactory.h
...
-(MyObject*)generateMyObject;
...
// ObjectFactory.m
...
-(MyObject*)generateMyObject
{
MyObject *obj = [[MyObject alloc]init];
obj.name = #"Whatever"; // set properties of object
return obj;
}
...
And there's a unittest-class, that calls the generateMyObject-selector and checks the class of the returned object:
...
ObjectFactory *factory = [[ObjectFactory alloc]init];
MyObject *obj = [factory generateMyObject];
if (![obj isMemeberOfclass:[MyObject class]])
STFail(#"Upps, object of wrong class returned...");
else
...
I expect, that the else-part is processed...but the STFail(...) is called instead, but why?
Thx for any help!
Regards,
matrau
Ok, here is the original copy&pasted code:
//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;
}
SOLUTION:
Eiko/jrturton gave me a link to the solution - thx: isMemberOfClass returns no when ViewController is instantiated from UIStoryboard
The problem was, that the classes were included in both targets (app and test bundle)
Thank you guys for your help :)

Answer 1

You generally want isKindOfClass:, not isMemberOfClass. The isKindOfClass: will return YES if the receiver is a member of a subclass of the class in question, whereas isMemberOfClass: will return NO in the same case.
if ([obj isKindOfClass:[MyObject class]])
For example,
NSArray *array = [NSArray array];
Here [array isMemberOfClass:[NSArray class]] will return NO but [array isKindOfClass:[NSArray class]] will return YES.

Answer 2

Ok, with different class addresses per your comment, I think I can track this down to be a duplicate of this:
isMemberOfClass returns no when ViewController is instantiated from UIStoryboard
Basically, your class is included twice.