セマフォを使用して、非同期メソッドが終了するまで待機できます。
- (void)testBlockMethod {
dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
// Your block method eg. AFNetworking
NSURL *url = [NSURL URLWithString:@"http://httpbin.org/ip"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
NSLog(@"IP Address: %@", [JSON valueForKeyPath:@"origin"]);
STAssertNotNil(JSON, @"JSON not loaded");
// Signal that block has completed
dispatch_semaphore_signal(semaphore);
} failure:nil];
[operation start];
// Run loop
while (dispatch_semaphore_wait(semaphore, DISPATCH_TIME_NOW))
[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode
beforeDate:[NSDate dateWithTimeIntervalSinceNow:10]];
dispatch_release(semaphore);
}
http://samwize.com/2012/10/03/sentestingkit-does-not-support-wait-for-blocks/