Unit testing blocks with AFNetworking example

gistfile1.m

/*
 * SenTestingKit does not wait for blocks to finish by default so your test would simply complete 
 * as successful. You need to use a semaphore and keep the run loop going in order for the test
 * to properly run.
 */
- (void)testGetSpots {
    dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);    
    CLLocation location = [[CLLocation alloc] initWithLatitude:70.0 longitude:50.0];
    [Spot spotsWithURLString:@"/spots" near:location parameters:[NSDictionary dictionaryWithObject:@"128" forKey:@"per_page"] block:^(NSArray *records) {
        //sample assert
        STAssertNotNil(records,@"Could not load spots");
        dispatch_semaphore_signal(semaphore);        
    }];   
    while (dispatch_semaphore_wait(semaphore, DISPATCH_TIME_NOW))
        [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode
                                 beforeDate:[NSDate dateWithTimeIntervalSinceNow:10]];
    dispatch_release(semaphore);    
}

hi, buddy, i meet the same problem, can you explain why u use the while(....){....}, but not use the simple dispatch_semaphore_wait(semaphore), thank you very much, I think others who use afnetworking and want get the notify from the success block wil be appreciated