one-to-one relationship

BNRHelp.h

#import <Foundation/Foundation.h>
#import "BNRTest.h"

@interface BNRHelp : NSObject

{
    NSString *_helpName;
}

@property (nonatomic) NSString *luar;

@end

BNRHelp.m

#import <Foundation/Foundation.h>
#import "BNRHelp.h"

@implementation BNRHelp : NSObject

@end

BNRTest.h

#import <Foundation/Foundation.h>

@class BNRHelp;

@interface BNRTest : NSObject
{
    NSString *_testname;
}

@property (nonatomic) BNRHelp *help;



//- (void)setTestName:(NSString *)test;
//
//- (NSString *)returnTest;

@end

BNRTest.m

#import <Foundation/Foundation.h>
#import "BNRTest.h"

@implementation BNRTest : NSObject

//- (void)setTestName:(NSString *)test{
//
//    _testname = test;
//}
//
//- (NSString *)returnTest{
//    return _testname;
//}

@end

main.m

//
//  main.m
//  VowelCounter
//
//  Created by izzuddin on 02/10/2017.
//  Copyright © 2017 izzuddin. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "BNRVowelCounting.h"
#import "BNRTest.h"
#import "BNRHelp.h"


int main(int argc, const char * argv[]) {
    @autoreleasepool {

        BNRTest *tess = [[ BNRTest alloc ]  init ];
        [tess setValue:@"testname" forKey:@"testname"];
        
        
        BNRHelp *help = [[BNRHelp alloc]init];
        [help setValue:@"dsasdasdsa" forKey:@"helpName"];
        [help setLuar:@"asdasddasdasd"];
        
        [tess setHelp:help];
        
        NSString *abuden = tess.help.luar;
        
        
        NSLog(@"%@", abuden);
        
        
    }
    return 0;
}